Bridge Saw Machine | MosCut Stone Machine

What is a bridge saw machine

In the realm of stone cutting and fabrication, bridge saw machines have emerged as indispensable tools, revolutionizing the industry. These advanced machines utilize cutting-edge technology to streamline and enhance the process of cutting stone slabs, providing accurate and precise results. This comprehensive article aims to delve into the world of bridge saw machines, exploring their functionalities, benefits, and key considerations for selecting the ideal machine for specific needs. A bridge saw machine is a heavy-duty industrial equipment designed to cut and shape stone slabs with exceptional precision. It consists of a sturdy bridge-like structure spanning the cutting table, holding a diamond-tipped circular saw blade. The stone slab is maneuvered underneath the bridge, enabling the cutting blade to traverse horizontally, vertically, and at various angles to achieve the desired cuts. Bridge saw machine is also named bridge cutting machine, bridge cutter machine. This machine is used to cutting slab into small pieces with full automatic for materials such asmarble, granite and other stones. As a professional manufacturer of bridge saw machine, here we give some introductions about this machine.

How do Bridge Saw Machines Work?

Bridge saw machines employ a combination of mechanical, electrical, and hydraulic systems to facilitate precise stone cutting. The process begins with the operator positioning the stone slab on the cutting table. The machine’s computerized control system then calculates and executes the cutting path based on the desired specifications, utilizing the saw blade’s rotational and translational movements.

As the saw blade starts cutting through the stone, water is continuously sprayed onto the blade to cool it down and minimize dust formation. The bridge’s horizontal and vertical movements, coupled with the rotation of the cutting blade, allow for intricate cuts, curves, and angles, ensuring high accuracy and quality.

Key Features and Advantages of Bridge Saw Machine

a. Precision and Accuracy:

Bridge saw machines employ advanced technology and precise controls, enabling accurate and intricate stone cutting. These machines can achieve consistent results, reducing material waste and enhancing the overall efficiency of the fabrication process.

b. Versatility:

Bridge saw machines offer versatile cutting capabilities, accommodating a wide range of stone materials, including granite, marble, quartz, and engineered stone. They can execute straight cuts, bevel cuts, miter cuts, and complex geometric patterns, catering to diverse project requirements.

c. Automation and Efficiency:

With the integration of computer numerical control (CNC) systems, bridge saw machines can automate the cutting process, minimizing human error and optimizing productivity. CNC-enabled machines can store cutting patterns, allowing for easy replication and batch processing, leading to faster turnaround times.

d. Safety Features:

Bridge saw machines prioritize operator safety. They often include safety sensors and mechanisms to prevent accidents and injuries. Emergency stop buttons, blade guards, and integrated water systems for dust suppression contribute to a safe working environment.

e. Customization and Software Integration:

Some advanced bridge saw machines offer software integration, enabling customization of cutting patterns and designs. This feature facilitates intricate artistic creations and the integration of complex architectural elements into stone fabrication projects.

Considerations for Selecting a Bridge Saw Machine:

a. Cutting Capacity:

Evaluate the maximum dimensions and thickness of stone slabs the machine can handle to ensure compatibility with the intended projects.

b. Automation Level:

Determine the desired level of automation, considering the scale of production and the need for precision. Choose between manual, semi-automatic, and fully automatic machines.

c. Cutting Precision:

Assess the machine’s ability to achieve high accuracy and precise cuts consistently. Look for features like laser alignment and advanced control systems for enhanced precision.

d. Blade Size and Type:

Consider the blade diameter and quality as they directly impact the cutting capacity and the overall finish of the stone surfaces.

e. Maintenance and Support:

Ensure the availability of reliable technical support and maintenance services to address any potential issues promptly and keep the machine in optimal condition.

Considerations for Selecting a Bridge Saw Machine

Types of Bridge Saw Machines:

– Traditional Bridge Saw:

These machines feature a fixed bridge structure and a rotating table. The stone slab is positioned on the table, and the bridge with the cutting blade moves across the slab to make precise cuts.

– CNC Bridge Saw:

CNC-enabled bridge saw machines incorporate computer numerical control systems, allowing for automation and greater precision. They can store cutting patterns and execute complex cuts with minimal human intervention.

– 5-Axis Bridge Saw:

These advanced machines have an additional axis of movement, allowing for intricate cuts on multiple planes. They are ideal for creating curved and sculptural stone pieces.

Bridge Saw Machines Cutting Capabilities:

– Straight Cuts:

– Straight cuts are the most basic and common type of cuts made with a bridge saw machine. They involve cutting the stone slab in a straight line, either horizontally or vertically, to create straight edges or segments.
– Bridge saw machines are designed to make precise and clean straight cuts, ensuring accurate dimensions and consistent edges.

– Bevel Cuts:

– Bevel cuts involve cutting the stone slab at an angle other than 90 degrees, creating a sloping or chamfered edge. Bevel cuts are commonly used to add decorative or aesthetic elements to stone surfaces.
– Bridge saw machines equipped with tilting heads or rotating tables can easily execute bevel cuts at various angles, allowing for design versatility.

– Miter Cuts:

– Miter cuts involve cutting the stone slab at an angle to create a joint with another stone slab, forming a seamless corner or joint.
– Bridge saw machines equipped with tilting heads or rotating tables can execute miter cuts at precise angles, typically 45 degrees, enabling the creation of clean and tight joints for applications like kitchen countertops or architectural elements.

– Curved and Geometric Cuts:

– Bridge saw machines can be programmed or guided to execute curved and geometric cuts, allowing for intricate and custom designs.
– For curved cuts, the bridge saw machine can follow a predetermined path to create curves or arcs in the stone slab. This capability is particularly useful for creating decorative edges or circular designs.
– Geometric cuts involve cutting the stone slab into specific shapes, such as triangles, rectangles, or polygons. With proper programming or guiding, bridge saw machines can accurately execute these cuts, enabling the creation of complex designs or inlays.

The cutting capabilities of bridge saw machines depend on various factors, including the machine’s design, features, and cutting parameters. It is important to choose a bridge saw machine that aligns with your specific cutting requirements, including the desired cutting angles, precision, and design complexity.

It’s worth noting that while bridge saw machines provide versatile cutting capabilities, certain specialized cuts or intricate designs may require additional equipment, such as waterjet cutting machines or CNC routers. Assessing your specific cutting needs and consulting with experts in the stone fabrication industry can help determine the most suitable equipment for achieving your desired results.

Bridge Saw Machines Cutting Capabilities

Bridge Saw Machines Supporting Equipment:

– Water Recycling Systems:

To reduce water consumption and minimize environmental impact, some bridge saw machines are equipped with water recycling systems. These systems filter and reuse the water used for cooling the blade.

– Slab Handling Equipment:

Depending on the size and weight of the stone slabs, additional equipment such as overhead cranes, vacuum lifters, or robotic arms may be used to move the slabs onto the cutting table.

Bridge Saw Machines Supporting Equipment

Bridge Saw Machines Maintenance and Safety:

– Regular maintenance is crucial to keep bridge saw machines in optimal working condition. This includes blade inspection and replacement, lubrication of moving parts, and calibration of the machine’s controls.
– Safety features are incorporated to protect operators and prevent accidents. These may include blade guards, emergency stop buttons, safety sensors to detect human presence, and automatic shut-off systems in case of malfunctions.

Industry Applications:

– Countertop and Vanity Production:

Bridge saw machines are extensively used in the production of kitchen countertops, bathroom vanities, and other stone surfaces.

– Architectural Elements:

They are employed to cut and shape stone for architectural elements such as columns, arches, cornices, and balustrades.

– Monuments and Memorials:

Bridge saw machines enable precise cutting of intricate designs and lettering for monuments and memorials.

– Artistic Sculptures:

With their ability to execute complex cuts and curves, bridge saw machines play a vital role in creating artistic stone sculptures and installations.

Products-Cut-By-5-Axis-Bridge-Saw-Machine-17

Advancements in Technology:

– Laser Scanning and Templating:

Some bridge saw machines utilize laser scanning and templating technology to create digital templates of stone slabs. This streamlines the measurement and cutting process, ensuring accurate replication of designs.

– Artificial Intelligence (AI) Integration:

AI algorithms are being employed in bridge saw machines to optimize cutting paths, reduce material waste, and enhance efficiency. AI can analyze the stone slab’s surface and suggest the best cutting strategy for maximum yield.

Bridge saw machines continue to evolve, incorporating advanced technologies and features to meet the ever-changing needs of the stone cutting and fabrication industry. By investing in these machines and staying updated with the latest advancements, professionals can achieve higher productivity, superior quality, and greater design possibilities in their projects safety, these machines are indispensable tools for professionals in the field. By considering the key features and selecting the right machine for specific needs, businesses can achieve exceptional results in stone cutting, shaping, and fabrication, propelling their projects to new levels of excellence and success.

Bridge saw machines have revolutionized the stone cutting and fabrication industry by combining advanced technology, precision, and efficiency. With their versatility, automation capabilities, and emphasis on.

what should i conside if i am going to buy a bridge saw

When considering the purchase of a bridge saw machine, there are several important factors to take into account. Here are key considerations to guide your decision-making process:

1. Cutting Capacity and Size:

– Determine the maximum dimensions and thickness of stone slabs you typically work with. Ensure that the bridge saw machine you choose can accommodate those sizes.
– Consider the weight capacity of the machine to handle heavy stone slabs without compromising stability and precision.

2. Automation Level:

– Assess your production requirements and consider the desired level of automation. Manual machines require more operator involvement, while fully automatic CNC machines offer higher efficiency and precision.
– Evaluate the complexity of the cuts and patterns you regularly work with. If you frequently handle intricate designs, a CNC-enabled bridge saw machine with advanced software integration may be beneficial.

3. Cutting Precision and Accuracy:

– Look for bridge saw machines with advanced control systems and features such as laser alignment, digital measuring, or camera-assisted systems. These enhance cutting precision and ensure consistent results.
– Consider the stability and rigidity of the machine’s structure. A solid and well-built machine will minimize vibrations and deviations, resulting in higher cutting accuracy.

4. Blade Size and Type:

– Evaluate the blade diameter and quality. A larger blade diameter allows for cutting thicker materials, while a smaller blade diameter offers greater precision for intricate cuts.
– Consider the type of blades the machine can accommodate, such as diamond-tipped blades. Different blade types are suitable for cutting specific stone materials, so ensure compatibility with your requirements.

5. Maintenance and Support:

– Research the reputation and reliability of the manufacturer or supplier. Ensure they provide comprehensive technical support, maintenance services, and readily available spare parts.
– Inquire about warranty options and the availability of service technicians who can promptly address any issues that may arise.

6. Safety Features:

– Bridge saw machines should prioritize operator safety. Look for safety features such as emergency stop buttons, blade guards, and safety sensors that can detect human presence and halt operations if necessary.
– Consider machines with integrated water systems for dust suppression, as they contribute to a safer and cleaner working environment.

7. Price and Return on Investment:

– Evaluate the overall cost of the machine, considering your budget and the long-term return on investment. Factor in the machine’s capabilities, durability, productivity gains, and potential expansion of your business.

8. User-Friendly Interface and Training:

– Assess the machine’s control interface and software. A user-friendly interface and intuitive controls will facilitate ease of use and operator training.
– Inquire about the availability of training programs or resources provided by the manufacturer to ensure that your operators can effectively utilize the machine’s capabilities.

9. Reviews and References:

– Seek feedback from other professionals in the industry who have experience with bridge saw machines. Read reviews and testimonials to gain insights into the performance, reliability, and customer satisfaction of different machine models and brands.

By carefully considering these factors and aligning them with your specific needs, you can select a bridge saw machine that will enhance your productivity, improve cutting quality, and meet your long-term business goals.

What are some factors that affect the cutting speed of a bridge saw?

Several factors can influence the cutting speed of a bridge saw machine. Understanding these factors is crucial for optimizing the cutting process and achieving efficient and productive results. Here are some key factors that affect cutting speed:

1. Stone Material:

– Different stone materials have varying densities, hardness levels, and compositions. Harder materials, such as granite, may require slower cutting speeds to achieve clean and precise cuts.
– Softer stones, like marble or limestone, can be cut at higher speeds due to their lower density and hardness.

2. Blade Diameter and Quality:

– The size and quality of the cutting blade play a significant role in cutting speed. A larger blade diameter typically allows for faster cutting, as it covers a larger cutting area with each rotation.
– High-quality diamond-tipped blades with sharp cutting edges can reduce cutting time by effectively slicing through the stone material.

3. Feed Rate:

– The feed rate refers to the speed at which the stone slab is moved underneath the cutting blade. A higher feed rate can increase cutting speed, but it must be balanced with the machine’s capabilities and the hardness of the stone material to avoid compromising the cut quality.
– Adjusting the feed rate based on the stone material’s hardness and the desired cut quality is essential for optimizing cutting speed.

4. Cutting Depth:

– The depth of each cutting pass affects the cutting speed. Deeper cuts require more time to complete, while shallower cuts can be executed faster.
– It is important to find the right balance between the cutting depth and the desired cut quality to achieve optimal cutting speed.

5. Machine Power and Stability:

– The power of the bridge saw machine’s motor and its overall stability impact cutting speed. A more powerful machine can handle higher cutting speeds, especially for denser and harder stone materials.
– A stable machine structure minimizes vibrations during the cutting process, ensuring smoother and more efficient cuts.

6. Coolant System:

– The coolant system, typically using water, is crucial for dissipating heat generated during the cutting process. Adequate cooling helps maintain the blade’s cutting efficiency and prevents overheating.
– Insufficient cooling can lead to slower cutting speeds, as the blade may need to pause or slow down to prevent damage caused by excessive heat.

7. Blade Wear and Maintenance:

– Regular blade maintenance and replacement are essential for optimal cutting speed. Dull or worn-out blades can reduce cutting efficiency and increase cutting time.
– Proper lubrication, blade alignment, and regular inspections are important to ensure the blade’s performance and maximize cutting speed.

8. Operator Skill and Experience:

– The skill and experience of the operator can significantly impact cutting speed. An experienced operator who understands the machine’s capabilities, knows how to optimize cutting parameters, and can make real-time adjustments can improve overall efficiency.

It is important to note that while cutting speed is an important consideration, it should not be the sole factor when determining the cutting parameters. Balancing cutting speed with cut quality, accuracy, and safety is crucial to achieve the desired results in stone cutting and fabrication projects.

Safety precautions for bridge saw machine

Operating a bridge saw machine involves potential risks, and it is essential to prioritize safety to protect operators and maintain a safe working environment. Here are some key safety precautions to consider when operating a bridge saw:

1. Operator Training and Knowledge:

– Ensure that operators receive thorough training on the safe operation of the specific bridge saw machine they will be using.
– Familiarize operators with the machine’s controls, emergency stop buttons, and safety features.
– Train operators on proper handling techniques, including loading and unloading stone slabs onto the cutting table.

2. Personal Protective Equipment (PPE):

– Operators should wear appropriate PPE, including safety goggles or glasses, hearing protection, cut-resistant gloves, and steel-toed boots.
– Provide operators with protective clothing, such as a protective apron or jacket, to prevent injuries from stone chips or debris.

3. Machine Maintenance and Inspections:

– Regularly inspect the machine for any signs of damage, wear, or malfunction. Address any issues promptly and perform routine maintenance as recommended by the manufacturer.
– Ensure the machine’s safety features, such as blade guards and emergency stop buttons, are in proper working condition.
– Keep the machine clean and free from dust and debris accumulation, which can pose safety risks.

4. Emergency Stop and Shutdown Procedures:

– Train operators on the location and proper use of emergency stop buttons. Instruct them on the immediate actions to take in case of an emergency or malfunction.
– Establish clear procedures for shutting down the machine in a safe manner during maintenance or in the event of an emergency.

5. Dust Control and Ventilation:

– Implement proper dust control measures to minimize the inhalation of harmful dust particles. This can include using dust extraction systems or wet cutting methods.
– Ensure adequate ventilation in the working area to maintain air quality and prevent the buildup of dust or fumes.

6. Slab Handling and Secure Positioning:

– Use appropriate lifting equipment, such as overhead cranes or vacuum lifters, to handle heavy stone slabs safely and avoid injuries.
– Securely position the stone slab on the cutting table to prevent movement or instability during cutting.

7. Blade Changing and Maintenance:

– Develop proper procedures for blade changing and maintenance, ensuring that operators are trained on safe blade removal, installation, and handling.
– Use appropriate tools and follow the manufacturer’s guidelines for blade changing to prevent injuries.

8. First Aid and Emergency Response:

– Have a well-stocked first aid kit readily available in the vicinity of the machine.
– Ensure operators are trained in basic first aid procedures and know how to respond to injuries or accidents.
– Establish communication protocols to quickly notify emergency services in the event of a serious incident.

9. Safety Signage and Clear Communication:

– Display safety signs and labels near the machine to indicate potential hazards, emergency stop locations, and safety precautions.
– Encourage clear communication among operators and other personnel in the vicinity of the machine to ensure everyone is aware of the ongoing cutting operations.

Remember, these safety precautions are general guidelines, and it is important to consult the specific safety recommendations provided by the manufacturer of your bridge saw machine. Following these precautions will help minimize the risk of accidents and injuries, creating a safer working environment for operators.

Safety precautions for bridge saw machine

what is the differences between regular bridge saw and cnc bridge saw

The main difference between a regular bridge saw and a CNC (Computer Numerical Control) bridge saw lies in their level of automation and control. Here are the key distinctions:

1. Manual Operation vs. Automated Control:

– Regular Bridge Saw: A regular bridge saw machine is operated manually by an operator who controls the movement of the bridge and the cutting process. The operator determines the cutting path, feeds the stone slab, and adjusts the cutting parameters manually.
– CNC Bridge Saw: A CNC bridge saw machine is equipped with computer numerical control, allowing for automated operation. The cutting process is programmed and controlled by a computer system, eliminating the need for constant manual intervention.

2. Precision and Accuracy:

– Regular Bridge Saw: The cutting precision and accuracy of a regular bridge saw heavily rely on the operator’s skill and experience. The operator manually guides the cutting blade, which may result in slight variations in the cut quality.
– CNC Bridge Saw: CNC bridge saw machines offer higher precision and accuracy due to their automated control. The cutting path is pre-programmed, and the machine follows it precisely, resulting in consistent and precise cuts.

3. Complexity of Cuts:

– Regular Bridge Saw: A regular bridge saw is suitable for making straight cuts and basic angled cuts. Creating complex cuts or intricate designs requires the operator’s manual adjustment and manipulation of the stone slab.
– CNC Bridge Saw: CNC bridge saw machines excel at executing complex cuts, curves, and intricate designs. The machine’s computer control allows for the execution of precise and intricate cutting patterns, including bevel cuts, miter cuts, and more.

4. Efficiency and Productivity:

– Regular Bridge Saw: The cutting speed and productivity of a regular bridge saw depend on the operator’s proficiency and the cutting technique used. It may require more time and effort to achieve desired results, especially for complex cuts.
– CNC Bridge Saw: CNC bridge saw machines offer higher efficiency and productivity. They can execute cutting patterns faster and with consistent quality, reducing the overall cutting time and improving productivity.

5. Learning Curve and Operator Skill:

– Regular Bridge Saw: Operating a regular bridge saw requires manual skills, experience, and a thorough understanding of the machine’s operation. It may take time for operators to develop the necessary proficiency.
– CNC Bridge Saw: Operating a CNC bridge saw machine requires knowledge of computer programming and familiarity with the machine’s software interface. Training and expertise in programming and operating the CNC system are necessary.

6. Design Flexibility:

– Regular Bridge Saw: While a regular bridge saw provides flexibility in terms of stone dimensions and material types, the design possibilities may be limited to simpler shapes and cuts.
– CNC Bridge Saw: CNC bridge saw machines offer enhanced design flexibility. They can execute complex and customized cutting patterns, allowing for greater creativity and versatility in stone fabrication.

In summary, a regular bridge saw relies on manual operation and operator skill, while a CNC bridge saw incorporates computer numerical control for automated and precise cutting. CNC bridge saw machines provide higher accuracy, efficiency, and design flexibility, making them ideal for complex cuts and intricate designs. However, they typically require additional programming knowledge and training for operation. The choice between a regular bridge saw and a CNC bridge saw depends on the specific needs, production requirements, and desired level of automation in stone cutting and fabrication processes.

Saw Blade size & diameter of bridge saw machine.

There are many diameter of blade such as 400mm, 600mm, 625mm, 800mm, 1000mm etc. Below we give a form to show you the max cutting thickness of each blade.

Blade diameter	Max cutting size (LWH)
400mm	32002000100mm
600mm	32002000200mm
625mm	32002000210mm
800mm	32002000300mm
1000mm	32002000400mm

Normal function and multi-functions bridge saw machine.

According to customer’s requirements, we have different kinds of bridge cutter to meet their standard. A normal stone cutting machine is for straight cutting only while a multi-function bridge saw is doing straight cutting, 45 degree tilt cutting, 90 degree rotation cutting and profiling cutting. Below two photos are normal and multi-functions bridge cutting machine we have.

Bridge saw machine table.

A table is use to load and unload stone material while machine is working. In China, all tables are designed to be 85 degree stand up and down to load and unload slab. Besides, we can also make table rotation horizontal in different such as 45°,90°,180°and 360°. All of these actions are full automatic.

CNC bridge saw machine

CNC bridge cutting machine can do all jobs of both normal and multi-function bridge saw machine and also it have some functions which other machines can’t replace. There is a computer on CNC machine. You can design a CAD drawing and upload this draw into this computer. Machine will working automatic when it receive you order. Our cnc bridge saw machine can also cutting full round for counter top products. Here we show you some photos which is cutting by this machine.

Price of bridge saw machine

In China, there are many stone bridge saw machine factories and each factory have different quality standard. Since different factory own a different design engineer, different steel materials, different electronic part sourcing and different manufacturing steps,so quality of bridge saw machine is big difference. Normally, the price of regular bridge saw machine range from 13000USD to 25000USD FOB China port. Some CNC bridge saw machine price would be higher than regular machine, say about 37000USD or even higher. Before you purchase a bridge saw machine, what you need to confirm is how much budget and what quality level you can prefer. What I am going to say is different price different quality.

How to loading bridge saw machine

We have been doing machine exporting business for more than 13 years and know well on how to make loading of bridge saw machine. Normally it takes one 20gp container to loading a full set of bridge cutting machine. We need one or two people to finish all steps of loading work.Before we start the loading,we well disassembling the whole bridge saw machine into some parts such as main bridge part,side beam part,bridge saw machine table,electric control panel and other spare parts.And we use a forklift car to loading all these parts into container. After that we will tighten all these parts with ears inside the container to avoid damage of machine during the shipping and transportation.

How to install a bridge saw machine

We are a professional manufacturer of bridge saw machine,we provide full steps from A to Z on that machine.We will send users manual and installation guide book to our client after they receive the machine.Inside the installation book,you will find all details such as bridge saw machine electric drawing and cement wall foundation and all setting details.Of course we can send technical to client factory to do the installation with all cost to be paid by customer like air tickets,hotel,food and 100 USD salary per day per person.

Structure of bridge saw machine

There are many types and designs of bridge saw machine. But the structures for all bridge saw machine are not big different. Below is a list of some important parts for bridge saw machine.
Cross beam on bridge saw machine also called side beam or bridge part, it’s the main part on bridge saw machine. There is a pair of synchronous pinion and gear moving forward and backward (Y-axis) on the oil immersed guide rail of side beam, the frequency converter and encoder control movement of the cross beam to accurately cutting slabs. The gears on the cross beam maybe different on different bridge saw machine, some are designed with regular gear and some are designs with linear guide rail. Some customers say regular gear is better while some prefer to use linear guide rail. But we can meet your request no matter what kind of design you like.
Bladeholder: it moves left and right (x-axis) on the oil immersed guide rail of side beam through pinion and rack. The speed regulating switch on control panel of bridge saw machine can adjust cutting speed. It can move up and down (Z-axis) through vertical hydraulic drive, and can cut slabs layer by layer automatically.
Main motor: The belt on mail motor drives the main shaft to provide power for slab cutting. This motor can protect bridge saw machine from power overload, ensure the motor overload withstand 1-3 times of current impact in a short period of time, or even greater overload requirements for bridge saw machine, and make a significant improvement in dust-proof and waterproof, and can also be designed and produced according to requirements of different voltages and frequencies of customers. At present, there are well-known stone cutting machine manufacturers supporting the use of good response.
Side beamis fixed on reinforced concrete foundation or steel frame legs of bridge saw machine, customers can choose to buy steel frame legs or cement wall from manufacturers or build the concrete wall by themself. the dust-proof and waterproof oil immersed guide rail on bridge saw machine cooperates with the beam movement.
Main electric cabinet or control panel: the main electric cabinet is equipped with various electrical equipment for control equipment. The control panel provides users with buttons, switches and text screens for data input and equipment working status of various control equipment.
MosCut Bridge Saw Machine

Bridge saw machine Maintaince

The bridge saw machine is always continues working for long hours. So it’s important for us to know some basic errors during the machine is cutting. Here is a list for regular errors during bridge saw machine working. If we can fix these basic errors by our-self, we can save time on waiting the machine repairman.

Main reasons for mechanical failure are: the parallelism of left and right guide rails is out of tolerance; the left and right guide rails on bridge saw machine are not at same level; Straightness of one or both guide rails is out of tolerance; meshing clearance of walking gears on both sides is inconsistent or severely worn; Rolling straight rails are damaged; guide rails are distorted and deformed due to foundation settlement; Slabs are not placed stably on the worktable, and format has displacement.

To solve inaccuracy of slab width difference caused by mechanical failure, first measure: the measurement value of levelness error of guide rail beam shall be ≤ 0.06/1000; Meshing clearance between walking gear and guide rail beam rack shall be 0.05-0.10 mm; Parallelism of guide rail beam on both sides shall be 0.50 mm. Any out of tolerance shall be adjusted and repaired.

The main causes of electrical failure are: longitudinal traveling frequency converter is damaged; magnetic ruler and probe components are damaged or distance between them is too large, magnetic head is loose; power supply voltage is unstable or low;

For out of tolerance phenomenon of slab size caused by electrical fault, it is necessary to check according to above mentioned reasons, and pay attention to system interference caused by incorrect wiring (no distinction between strong current cable and signal cable) or external power supply. The equipment shall be reliably grounded during installation. The three-phase four wire system should be strictly followed. In order to distinguish mechanical failure from electrical failure, first of all, it is necessary to know in detail whether the out of tolerance position is fixed, or carry out experimental cutting. If there is always out of tolerance in the same area when cutting slabs with different sizes, it is mostly caused by mechanical failure. Due to electrical reasons, size out of tolerance faults are mostly sporadic and irregular.

Features of bridge saw machine

Bridge saw machine is a popular equipment which is widely used in stone processing factory. The common ways for cutting slab in stone factory are hand cutting, half-automatic cutting and automatic cutting. Though manual cutting is flexible and convenient, the slab quality is lower than automatic cutting, difficult to control size tolerance of slab, the material waste is large, compare with manual cutting machine, it’s easy to protect worker safety and increase cutting efficiency if we use a bridge saw machine to cutting slabs. A Stone profile machine belongs to half-automatic cutting machine, this machine is suitable for cutting and profiling stone materials with good quality, but the cutting speed is much more lower than automatic bridge saw machine. There are many other types of half-automatic cutting machine, most of these machines are design with simple structure and not suitable for mass quantity slab cutting. It’s a good ideal to choose a half-automatic cutting machine if your budge is limited. With the development of modern mechanical industry, people has a higher and higher requirements of work efficiency and product quality on stone cutting machine. Therefore, market potential of bridge saw machine is still great and market prospect is optimistic.

How to cut slabs with bridge saw machine

After we buy a bridge saw machine from manufacturer, we have to learn how to use the machine in short time. Below is some tips that you need to know before you turn on the machine.

- Before we turn on the bridge saw machine, we need to make sure the machine operator have full understand all information on the process order document. In case of any objection, it shall be put forward immediately, and it can be started and cut after being solved.
- Check whether the variety and quantity of slab materialstransferred to the bridge sawmachine are consistent with processing sheet. Make detailed records and if there is any objection, it shall be reported and dealt with in a timely manner.
- Before we cut the slabs, make sure the specification and size shall be checked to see whether it is suitable for the material. It shall be reported to the workshop technologist in time for handlingif there is any misunderstanding. We can turn on the bridge saw machine only after getting a positive reply.
- During bridge saw machine working, the slabs cutting arrangement shall be reasonable, and each slabshall reach the highest utilization rate, and try best to cut most stone products with the smallest area.
- In case of color gall, color difference, crack and other defectson slab material, themachine operator shall avoided them without affecting the yield. If there are special requirements of the customer or there are clear provisions on the processing sheet, they shall be handled according to the requirements.
- If slab arebrittle stone, when the slabis hoisted on the machine table, foot of the machine table must be padded with wood plate to protect the slab. Generally, it is hoisted by one piece, and multiple pieces are not allowed to be hoisted. During cutting process, we can only cut granite one by one and can cut two pieces of marble slabs at the same time.
- When operating thebridge sawmachine, the machine operator should focus on observation, feed at an economic and effective speed, travel machine accurately, and try to reduce the distance stone material and saw blade. The cutting speed is about 20 for granite and 30 for marble. The cutting operation shall be adjusted according to hardness and thickness of cutting tool and slab material, and strictly prevent occurrence of edge explosion, slab moving and incomplete or incomplete cutting of stone.
  Bridge Saw Machine Packing and loading

Error analytic of bridge saw machine

Causes of out of control saw blade feeding: this is maybe bridge saw machine oil leakage of oil cylinder, aging of piston oil seal, loose sealing; loose sealing of solenoid valve spool or insufficient closing of spool due to many impurities in the oil, pressure relief. Troubleshooting: first of all, cleaning the solenoid valve spool. If there are more impurities in the hydraulic fluid or foam, replace the hydraulic oil. Then check whether the lifting oil cylinder of the saw blade is leaking oil and the aging of the piston oil seal.
When bridge saw machine cutting, the lathe bed is moving slowly and deviates. If it cannot be clamped at the very beginning, the clamping cylinder may be rusted, we could removed, cleaned or replaced it, and then restart the bridge saw machine again; If the bed is clamp at the beginning, and then loosen slowly after some times cutting. The we need to check and clean the solenoid valve core. If the hydraulic oil frothed, frothed and water deteriorated, the obvious performance is that the clamping cylinder automatically unloads the pressure, resulting in the bed moving and cutting deviation, then replace the hydraulic oil.
Bridge Saw Machine motor is working but the table is not working. This is maybe the clutch does not work. Troubleshooting: check whether the relay K12 is in good condition. Use a multimeter device to measure between point 147 and point 102 to determine whether the clutch coil and circuit are in good condition. Generally, the problem is clutch coil is disconnected or plug is in poor contact.
Machine motor does not run. Fault cause: motor phase loss operation, frequency converter GF1 protection. Troubleshooting: check whether the motor on bridge saw machine is burnt out or missing phase, and whether the motor line is broken phase. If the clamping cylinder can not be loosened, resulting in motor over-current protection, remove the clamping cylinder for cleaning.
When the bed moves, there is abnormal noise or it stops suddenly when it reaches a certain position. The reason is that the bridge saw machine rack in the two oil measuring pools is missing or loose. Troubleshooting: check whether bridge saw machine rack in the two oil measuring pools is broken or loose, replace or fasten it, especially the rack at both ends is easy to loosen. If the gap between the two racks reaches more than one tooth pitch, when the bed moves to this position, there will be a sound and stop immediately. After reset, screw down the locating pin and tighten ten thousand screws of inner door.
Working principle of bridge saw machine.
Bridge Saw Machine Side Beam

Working principle of four pillars bridge saw machine.

Lifting main shaft on bridge saw machine: the carriage is placed on crossbeam, the guide sleeve and hydraulic cylinder are connected with the carriage, the guide column can slide up and down in the guide sleeve, and the upper part is connected with the support plate by bolts. The main motor is installed on support plate. The main shaft lifting system on bridge saw machine is powered by a hydraulic pump, which drives four guide pillars to move up and down through expansion and contraction of piston rods of two double acting hydraulic cylinders. There are four guide pillars in spindle lifting system to ensure accuracy of up and down feed movement of cutting head. The down part of guide column is connected with main shaft box with saw blade to drive the lifting movement of saw blade. The longitudinal movement of beam of bridge saw machine is movement of beam along longitudinal guide rail, which plays role of dividing slab. The longitudinal motion system is powered by motor, and longitudinal feeding mechanism also chooses not to enter motor. Since there is no cutting force in longitudinal direction of bridge saw machine, the driving force needed is mainly used to overcome friction between all the weight on the beam and the four guide rails, which is less than the cutting force of the infeed mechanism.

Working principle of regular design bridge saw machine

Main function of the carriage's traverse movement along crossbeam is to cut slab, and its movement accuracy directly affects the cutting quality. The infeed system is powered by step motor, and the step motor is selected for the infeed mechanism. When the slab thickness is 20 mm, the feed speed is 1-3 M / min; when the cutting thickness changes, the feed speed is adjusted accordingly. At the same time, the feed speed of bridge saw machine is also adjusted according to the stone hardness. Any change of feed speed is controlled by pulse number of the step motor controlled by PLC, so it can meet the needs of different thickness and different brands of slab cutting. Bridge saw machine improves slab cutting quality gradually until it reaches quality requirements of finished products in varies of working conditions. In cutting process, in order to improve cutting efficiency, bridge saw machine manufacturers select raw materials strictly, increase the automation technology and the safety problems of operators are fundamentally improved.