Europa Jainnher JHC 20S Centerless Grinding Machine

Description

With a standard work capacity from 1mm to 50mm with a standard work rest, and 40mm to 100mm with a special workrest. A servo motor provides control of speeds from 10 to 250rpm and is used for the regulating wheel, which can be adjusted to ideal linear speeds. When the diameter of the regulating wheel changes the same linear speeds can still be maintained so as grind the best quality products

Hydrostatic Bearings: Precision ground Hydrostatic Bearings: Substantial decrease in heat deformation associated with Hydrodynamic bearings.Minimal friction, lateral displacement, and pressure .Extended tool life under heavy cut loads.

Grinding Wheel Spindle: The Grinding Wheel Spindle runs on hydrostatic bearings with a high-pressure oil film for added precision under heavy loads. Substantially reduces wear while prolonging spindle trueness. SNCM-210H carbon steel hardened beyond HRC60, yielding high torsion resistance.

Specification

Standard work rest (diameter) 1 - 50mm
Special work rest (diameter) 40 – 100mm
Grinding wheel size (dia x width x bore) 510 x 205 x 254mm
Regulating wheel size (dia x width x bore) 305 x 205 x 127mm
Grinding wheel speed 1350rpm
Regulating wheel speed 10-250rpm variable speed
Grinding wheel motor 20HP
Regulating wheel motor 4HP Servo Motor
Hydraulic pump motor 1HP
Coolant pump motor 1/2HP
Regulating wheel feed on handwheel 3.5mm/rev -  0.05mm (Gra)
Regulating micro feed on handwheel 0.1mm/rev -  0.001mm (Gra)
Table feed on handwheel 9mm (rev) - 0.05mm (Gra)
Table micro feed on handwheel 0.2mm (rev) - 0.001mm (Gra)
Dressing handwheel 2mm/rev -  0.01mm (Gra)
Regulating wheel tilt angle +5 Degrees ~ -3 Degrees
Regulating wheel swivel angle ±5 Degrees
Approx weight 3200kgs / 3500kgs
Floor space (L x W x H) 2400 x 1300 x 1550mm

 

Standard Equipment

Hydraulic wheel dressing of the grinding and control wheels
Grinding wheel and grinding wheel flange
Regulating wheel and regulating wheel flange
Flange extractor
Diamond tool
Thrufeed workrest and blade
Infeed workrest and blade
Levelling screw and plate
Tool box and tools
Instruction and maintenance manual

 

    Price:
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    Details:
    • Condition : new
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