Product Overview
This CNC precision grinder is engineered for sub-micron machining of hardened steels, ceramics, and superalloys. The Meehanite cast iron bed undergoes stress-relieving annealing and vibration aging to absorb high cutting forces. Linear axes utilize C3-grade preloaded ball screws paired with direct-drive servomotors, eliminating backlash during contour grinding cycles. Factory Acceptance Testing (FAT) is conducted under strict temperature-controlled standards (20°C) to guarantee baseline performance before shipment.
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![Internal Grinding Machine]()
Internal Grinding Machinetype：cnc internal grinding machineview more
, cnc or not：CNC
, warranty：3 Years
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![CNC Cylindrical Grinder]()
CNC Cylindrical Grindercnc or not：CNC voltage：380 V, 220 V grinding diameter(outer)(mm)：320 grinding diameter(inner)(mm)：125 max. length of workpiece (mm)：1000view more -
![CNC Centerless Grinder]()
CNC Centerless Grinder1.This centerless grinding machine base adopted FC30 cast iron and heat treatment.view more
2. With V type lubrication design to ensure that no deformation of the body after taking into long time... -
![Heavy-duty Crankshaft Grinding Machine]()
Heavy-duty Crankshaft Grinding MachineMQ8260A/16view more
Max. work swing dia. x Max. length（mm）：580x1600
Max. swing diameter over table（mm）：580
Work dia. ground with steady rest（mm）：30-100
Throw of... -
![Crankshaft Grinder Machine]()
Crankshaft Grinder MachineHigh Precision Machining: Achieves flatness ≤ 0.005mm and surface roughness Ra 0.2-0.8 μm, ideal for precision manufacturing.view more
Strong Processing Stability: Rigid body structure ensures... -
![Normal Cylindrical Grinding Machine]()
Normal Cylindrical Grinding MachineCNC cylindrical grinding machine for internal and external grinding， MachineMachine table longitudinal travel, wheel head raped approach and withdrawal and automatic periodic cross infeed are...view more -
![Universal Crankshaft Grinding Machine]()
Universal Crankshaft Grinding MachineMax. Cross movement：185mmview more
Max. Work swing diameter：580mm
Max work length:：1600mm
Throw of crankshaft：110mm -
![Punch Grinder Machine]()
Punch Grinder MachineClamping working diameter：Φ3.0-50mmview more
Spindle speed：0-20000rpm
Processing inner hole diameter：Φ1.0-40mm
Work head rotation speed：0-180rpm
Grinding accuracy... -
![CNC Center Hole Grinding Machine]()
CNC Center Hole Grinding MachineExclusive 3D design of synchronized grinding motion for ultimate accuracy.view more
User-friendly design for simple and precise operation.
Engineered for cylindrical grinding applications... -
![Center Hole Grinder]()
Center Hole GrinderMin.diamerter of centre holes：1.5mmview more
Max.diameter of centre holes：60mm
Wax.diameter of centre holes：100kg -
![Factory Centerless Grinder]()
Factory Centerless Grindercnc or not:CNCview more
core components:motor, Bearing, Gearbox, Engine, Gear, Pressure vessel, Pump, PLC
grinding diameter(inner)(mm):0.1
grinding diameter(outer)(mm):30 -
![Precision Centerless Grinding]()
Precision Centerless GrindingHigh Precision Grinding: Delivers exceptional accuracy for precision parts.view more
Wide Diameter Range: Works efficiently with tubes and shafts from 0.6 to 60mm.
Certified Quality: Ensures...
Key Features
Hydrostatic Spindle Design
Minimizes thermal displacement during continuous 24/7 operation, maintaining runout accuracy within 0.0005 mm using high-frequency Kessler or Fischer spindle assemblies.
Integrated Acoustic Emission (AE) Sensor
Detects wheel-to-workpiece contact instantly, reducing air-cutting time and preventing crash damage during dressing cycles.
Dual-Vee Way Construction
Hand-scraped guideways coated with Turcite-B provide stick-slip-free motion under heavy axial loads.
Closed-Loop Thermal Compensation
Real-time algorithms adjust axis positioning based on ambient and spindle PT100 temperature sensor arrays.
Machining Capabilities
Surface Finish:
Achieves Ra <= 0.1 um on hardened SKD11 (60 HRC) workpieces using CBN wheels.
Dimensional Tolerance
Maintains cylindrical roundness within 0.001 mm over a 300 mm length.
Material Removal Rate (MRR)
Optimized for high-efficiency deep grinding without introducing micro-surface burns or thermal cracking.
Machine Configuration
CNC Control
Fanuc 0i-TF Plus or Siemens 840D SL with conversational grinding cycles.
Spindle Motor
7.5 kW AC inverter-duty direct drive.
Coolant System
300-liter tank with active magnetic separator and paper band filtration (10-micron rating).
Dressing Unit
Fixed diamond roll or CNC-interpolated single-point dresser mounted on the worktable or wheelhead.
Aerospace: High-precision profiling of turbine blade roots and landing gear spool valves.
Medical: Tight-tolerance machining of cobalt-chrome bone screws and surgical reamers.
Automotive: Finish-grinding of transmission shafts, fuel injector plungers, and steering rack components.
Tool & Die: Production of interchangeable punch inserts and tungsten carbide progressive die segments.
Define Workpiece Geometry: Select surface grinders for flat plates, cylindrical grinders for shafts, or universal grinders if multi-axis angular profiling is required.
Calculate Thermal Stability Needs: Production environments exceeding +/- 2°C temperature fluctuation require optional chiller units and linear scale feedback.
Wheel Specification Match: Match spindle power and peripheral speed (SFPM) to aluminum oxide, silicon carbide, or superabrasive (CBN/Diamond) wheel requirements.
Automation Feasibility: Evaluate gantry loaders or robotic arm integration if batch sizes exceed 500 units per shift.
Manufacturing & Quality Control
Bed Casting Inspection: Ultrasonic testing performed on raw Meehanite castings to detect internal porosity prior to machining.
Laser Interferometer Calibration: Every machine axis is laser-calibrated for pitch, yaw, and positioning accuracy in a climate-controlled assembly bay (20°C).
Ballbar Testing: Circular diagnostic tests verify contouring performance and servo mismatch before factory sign-off.
Run-Off Documentation: Standard delivery includes a CMM inspection report, laser calibration certificate, FAT sign-off report, and a 72-hour dry-run test log. Remote virtual FAT streaming is available upon request.
Optional Configuration
In-Process Gauging
Marposs or Renishaw measuring probes for automated workpiece dimension verification without removing parts from the chuck.
Mist Extraction Unit
Electrostatic precipitator system capturing oil mist directly from the enclosure.
Electro-Permanent Magnetic Chuck
Variable magnetic clamping force for thin-plate grinding without thermal distortion.
High-Pressure Coolant Pump
70 bar delivery system for deep-hole or difficult-to-machine aerospace alloys.
FAQ
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