Automatic Centerless Grinding Machine

MX-M1083B series automatic centerless grinding machine delivers exceptional through-feed grinding capability, enabling efficient full-length processing of long bar and tube materials. Its flexible configuration allows for quick production transitions. This can be achieved by simply replacing the support plate and adjusting the angles of the guide wheel and the grinding wheel, which can accommodate workpieces of varying diameters and lengths. With high efficiency, low scrap rates, and reduced requirements for labor and auxiliary tools, this machine offers highly competitive unit costs in mass production.

 

The MX-M1083B automatic centerless grinding machine is mainly used for through-grinding of cylindrical surfaces of various ring parts and shaft parts; manual plunge-type grinding of various steps, cones, and cylindrical rotating surfaces.

 

 

 

1. Grinding Capacity

• Workpiece Diameter Range: Supports a wide range from 0.5mm (micro pins) to 300mm (large rolls).

• Workpiece Length Range: Standard support up to 2 meters; optional extended bed supports machining of ultra-long shafts up to 6 meters.

• Maximum Removal: Maximum removal in a single grinding pass can reach 0.5mm (depending on material hardness).

 

2. Precision Performance

• Geometric Accuracy	Roundness: ≤ 0.0015 mm (High Precision) Cylindricity: ≤ 0.002 mm / 500mm (Eliminating Concavity) Straightness: ≤ 0.003 mm / 1000mm
• Surface Quality	Surface Roughness: Ra 0.05 - 0.2 μm (Mirror Finish) No spiral marks, no chatter marks, no burn marks
• Dimensional Stability	Process Capability Index (CPK): ≥ 1.67 (Statistical analysis of 100 consecutively processed pieces) Dimensional Dispersion Zone: ≤ 0.004 mm

 

3. Mechanical Configuration

• Base	High-strength mineral casting (polymer concrete), aged for strong shock absorption and high thermal stability.
• Grinding Spindle	Type: Hydrostatic bearing or high-precision rolling bearing (optional). Features: High rigidity, low vibration, long life. Drive method: Direct-drive variable frequency motor or belt drive.
• Regulating Spindle	Type: Hydrostatic bearing. Drive method: Servo motor + precision reducer, enabling stepless speed regulation. Angle adjustment: CNC servo control (C-axis), adjustment range 0° - 5°, resolution 0.001°.
• Work Rest	Material: Solid Tungsten Carbide or ceramic coating. Adjustment method: Manual or servo motor driven for fine-tuning up/down/forward/backward movement.
• In-feed System	Drive method: Precision ball screw & AC servo motor. Guide rail type: High-rigidity linear guide (HIWIN/THK) or plastic-coated sliding guide. Resolution: 0.001 mm (standard) / 0.0001 mm (optional full-closed-loop grating ruler).
• Safety standards	Compliant with CE/ISO safety standards, equipped with safety light curtain, emergency stop device, and door lock protection device.

 

4. Cooling & Auxiliaries

• Cooling Pump: High-pressure, high-flow centrifugal pump (20 bar, 100 L/min), with magnetic separator + paper tape filter.

• Temperature Control System: Optional chiller unit, capable of controlling grinding fluid temperature within ±0.5℃.

• Chip Removal System: Spiral chip conveyor & chain plate chip conveyor automatically transports grinding chips to the chip collection cart.

• Lubrication System: Employs an automatic timed and metered lubrication device to ensure the service life of the guide rails and lead screw.

 

5. Utility Requirements

• Power Supply: 3-phase AC 380V / 400V / 415V, 50/60Hz (customizable according to region).

• Total Power: 35 kW - 60 kW (depending on model).

• Air Supply: 0.5 - 0.7 MPa, consumption < 200 L/min (for sealing and purging).

• Ambient Temperature: Recommended 20℃ ± 2℃ (a temperature-controlled workshop is recommended for high-precision machining).

 

 

Product Name	Automatic Centerless Grinding Machine
Model	MX-M1083B
Plunge-feed
Grinding Diameter	10-150mm
Max. Grinding Length	190mm
Through-feed
Grinding Diameter	10-150mm
Grinding Wheel Specification	P600x200x305mm
Regulating Wheel Specification	PDA350x200x203mm
Grinding Wheel Speed	1115r/min
Regulating Wheel Speed	10-200r/min
Swivel Angle of Regulating Wheel
Vertical	-2°- +5°
Horizontal	0°- +3°
Feed/Revolve	1.5mm
Feed/Division	0.01mm
Miro Feed/Hole	0.005mm
Height From Centerline of Gri. Wheel & Reg. Wheel To Work Rest	285mm
Total Power
Grinding Wheel Motor	22KW
Regulating Wheel Motor	3KW
Power Supply	3N 50Hz 380V
Machine Dimension (L*W*H)	2650x1500x1800mm
Machine Weight	About 7000Kg
Accuracy (Standard Bars)
Roundness	0.002mm
Cylindricity	0.003mm
Roughness	Ra0.32μm

 

 

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