We have specialized in metalworking machine tools for 28 years. Our equipment is built on high-strength alloy castings and equipped with imported precision spindles. Our equipment undergoes rigorous 72-hour continuous load testing, achieving micron-level machining accuracy (0.001mm). We are ISO9001 and CE certified, ensuring a ten-year maintenance-free lifespan.Our core team, comprised of experienced experts from various fields, provides comprehensive process solutions encompassing design, production, and commissioning. We flexibly support customization and ODM/OEM partnerships, allowing you to initiate R&D with a single machine. We have successfully served over 20 industry segments.Leveraging our one-stop service system and four-step quality control process, we have delivered over 12,000 machine tools to over 3,000 companies, meeting the needs of a wide range of metalworking scenarios.
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Centerless Bar Grinding MachineCNC Centerless bar grinding machine is the core equipment in the field of precision machining. With advanced technology and excellent performance, it brings efficient and accurate machining solutions
Product Introduction
Our centerless grinding machine is a specialized precision grinding tool used to grind cylindrical or conical workpieces without the need for a central axis (or "center") to hold the part, hence the name "centerless." Instead, the workpiece is supported by a combination of a regulating wheel (or feed wheel) and a work rest blade, while the grinding wheel removes material to achieve precise dimensions, roundness, and surface finish.
Product Type
Through-Feed Centerless Grinders
Used for long, straight workpieces (e.g., shafts, rods). The regulating wheel’s tilt feeds the workpiece continuously through the grinding zone, making it efficient for high-volume production.
In-Feed (Plunge) Centerless Grinders
Suitable for workpieces with shoulders, steps, or non-uniform diameters (e.g., bearing races). The workpiece is held stationary while the grinding wheel feeds radially into it to grind specific sections.
End-Feed Centerless Grinders
Designed for short workpieces. The workpiece is fed axially into the grinding zone by hand or automation and is ground on one or both ends.
Product Advantages
High Production EfficiencyDED COMPANY
No clamping is required, enabling continuous processing and reducing auxiliary time, making it suitable for high-volume production and highly efficient.
Exceptional Dimensional Consistency
A stable support system minimizes workpiece deformation and ensures excellent dimensional consistency with tolerances up to ±0.001mm.
Suitable for Long or Flexible Workpieces
The non-clamping design is suitable for long, thin, and flexible workpieces, preventing deformation and ensuring straightness and precision.
Versatility in Workpiece Shapes
Adjustable machining allows for machining a variety of shapes, including tapers and steps, offering wide applicability.
Simplified Operation
Simple operation and fast setup require minimal worker skill, reducing labor costs.
Reduced Heat-Related Issues
Sufficient cooling and excellent heat dissipation minimize workpiece thermal deformation and help ensure dimensional stability.
Application
Automotive Industry
Process critical components like crankshafts, camshafts, piston pins, valve stems, and bearing races, ensuring tight tolerances for smooth engine operation and reduced wear.
Aerospace Sector
Manufacture precision parts such as aircraft engine shafts, hydraulic cylinder rods, and landing gear components, where dimensional accuracy and surface finish are critical for safety and performance.
Bearing and Hardware Production
Grind bearing inner/outer rings, rollers, and balls to achieve uniform diameters and roundness, which are essential for bearing rotation efficiency and longevity.
Medical Device Manufacturing
Fabricate surgical instruments (e.g., scalpel handles, needle shafts) and implant components (e.g., orthopedic rods), requiring high precision to meet biocompatibility and functional standards.
Electronics and Electrical Fields
Process small shafts for motors, generators, and precision gears, ensuring minimal runout to maintain stable operation of electrical equipment.
Metallurgical and Material Processing
Finish rolled or drawn bars (e.g., steel, aluminum, copper) to improve surface smoothness and dimensional uniformity, facilitating subsequent machining or assembly.
Precautions for use
Pre-Startup Inspection
Confirm that the grinding wheel and guide wheel are securely installed and free of cracks, and have undergone a static balance test. Calibrate the height and angle of the pallet to ensure stable workpiece support. Check the cooling system to ensure sufficient and clean coolant.
Workpiece and Parameter Setup
Adjust the guide wheel speed and tilt angle according to the workpiece diameter and material to avoid excessive feed and deformation.
Operating Safety Standards
Upon startup, idle the grinding wheel and guide wheel for 30 seconds to confirm that there are no abnormalities before feeding. Do not touch the rotating workpiece or adjust the pallet with your hands.
Grinding Wheel and Guide Wheel Maintenance
Regularly dress the grinding wheel to maintain sharpness. Keep the guide wheel surface clean to prevent slipping.
Process Monitoring
Observe the grinding area in real time. Stop the machine immediately if any unusual sparks or noises occur.
Post-Stop Processing
Turn off the power and wait for the machine to come to a complete stop. Clean debris between the pallet and the grinding wheel.
FAQ
Q: Why does the workpiece show inconsistent diameter after centerless grinding?
A: Likely due to misadjusted regulating wheel angle/speed, uneven workrest height, or worn grinding wheel. Recalibrate parameters, check workrest alignment, and dress the wheel.
Q: How to prevent workpiece bending during grinding of long/thin parts?
A: Use auxiliary supports (e.g., follow rests) to stabilize the workpiece, reduce grinding depth, lower feed rate, and ensure the workrest is properly angled to distribute force evenly.
Q: What causes the workpiece to slip or "walk" during processing?
A: Slippage often results from insufficient regulating wheel pressure, oily/dirty workpiece surfaces, or incorrect workrest height. Clean the workpiece, adjust regulating wheel pressure, and realign the workrest.
Q: Can centerless grinders process non-cylindrical or irregularly shaped parts?
A: They are primarily for cylindrical parts, but with special fixtures or modified workrests, they can handle simple tapers or stepped shafts. Complex shapes require custom tooling or alternative grinding methods.
Shanghai Antishicnc Machine Equipment Co., Ltd. is one of the most professional centerless grinding machine manufacturers and suppliers in China, featured by quality products and low price. Please rest assured to wholesale high-grade centerless grinding machine for sale here from our factory.
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