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High Speed CNC Internal Grinding Machine HMN-110 With CBN Grinding Wheel

Categories Cylindrical Grinding Machine
Model Number: HMN-110
Certification: CE, ISO certification
Place of Origin: China
MOQ: 1 Set
Price: Negotiation
Payment Terms: T/T, L/C, Western Union
Supply Ability: 50 sets per month
Delivery Time: 30-45 days
Packaging Details: The wooden case,Tin trunk ,Other seaworthy packing
Product Name: HMN-110 CNC Internal Grinding Machine
Grinding method: CNC oscillating grinding
Dressing method: Diamond roller dressing
Work piece center height: 1113 mm
Rotating speed of spindle: 220~1300 r/min
Rotating speed of grinding wheel: 100~60000 r/min
Max.stroke of Z axis: 400 mm
Z axis motor rotation speed: 15~2000 r/min
Dimensional accuracy: ≤0.002 mm
Machine weight: 6000 kg
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High Speed CNC Internal Grinding Machine HMN-110 With CBN Grinding Wheel

HMN-110 CNC Internal Grinding Machine CBN grinding wheel high speed grinding

I Working principle:
The CNC centerless internal grinder adopts double fulcrum and electromagnetic chuck for clamping and positioning. The processing method adopts numerical control oscillating grinding. The worktable is composed of two axes, X and Z, both of which are driven by a servo motor through a ball screw. The grinding wheel axis is located above the worktable, and the workpiece axis and the correction axis are fixed.


II Technical parameter


ItemSpecifications or parametersUnit
Grinding methodCNC oscillating grinding
Type of Grinding WheelCBN grinding Wheel
Work piece clamping methodDouble pivot + electromagnetic chuck
Dressing methodDiamond roller dressing
Grinding work piece outer diameterAccording to customer requirementsmm
Grinding work piece inner diameterAccording to customer requirementsmm
Height of grinding work pieceAccording to customer requirementsmm
Work piece center height1113mm
Rotating speed of spindle220~1300r/min
Spindle box rotation angle±60°
Rotating speed of grinding wheel100~60000r/min
Max.stroke of Z axis400mm
Z axis moving speed0.2~333330μm/s
Z axis motor rotation speed15~2000r/min
Z-axis motor oscillation amplitude0~25mm
Z-axis oscillation times0~520 sine wavetimes
X axis movement (forward side)110mm
X axis movement (backward side)10mm
X axis moving speed0.4~333330Φμm/s
Machine space occupation3680*2730*2410mm
Machine weight6000kg
Dimensional accuracy≤0.002mm
Roundness≤0.002mm
Cylindricity≤0.002mm

III Application field

1. Suitable for the grinding of various workpieces of air-conditioning compressors

2. Used in the grinding of various workpieces in the bearing processing industry

3. Processing and grinding of various automobile parts

4. Grinding of various high-precision, ultra-high-precision aerospace and ship parts through holes, blind holes, step holes, cones, and end faces.


IV Grinding example----piston


Example description

ItemName or requirement
customerAir-conditioning compressor company
Work piece nameAir conditioning compressor piston
Work piece materialNiCrMo alloy cast iron
Work piece hardnessHRC45-50
Machining allowanceΦ0.27mm
Roundness2μm
Cylindricity2μm
Straightness1.5μm
Wave1.3μm
RoughnessRz1.6
Dimensional stabilityAbove CPk1.33 (tolerance ±3μm)
Processing beat30s
Dressing cycle50 pieces
Optimization purposeProve to achieve the performance of imported similar products

Comparative Results


ItemImported equipmentOur equipment
Roundness0.82μm0.74μm
Cylindricity0.7μm0.6μm
Straightness0.87μm0.64μm
Wave0.8μm0.7μm
RoughnessRz1.2Rz1.2
Dimensional stabilityCpk1.69Cpk2.3
Processing beat28s27.45s

Quality High Speed CNC Internal Grinding Machine HMN-110 With CBN Grinding Wheel for sale
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