Fully Automatic Centerless Spherical (Flat) Stone Lapping Machine (double station machine)

for end face of cylindrical roller, shaft, and so on

Standard application range : OD 2.5 - 50 mm x Length 2.5 - 55 mm
- Curvature : R 250 - (for spherical process)

STK-50FSD-TZB

Main Features

  • Fully automatic centerless spherical (flat) double-station stone lapping machine
  • Stone lapping machine capable of finishing end surfaces of cylindrical or tapered rollers after forging or grinding to a flat or spherical surface. The machined surface can also be finished with cross-hatch or concentric patterns.
  • Precisely adjustable swivel mechanism (0-10° angle) installed at the stone head portion enables creation of fully accurate spherical profiles.
    The tilting mechanism also enables precise adjustment of stone alignment.
  • Two-roller & one shoe support system provides good parallelism and squareness against the mounting reference face.
  • An optional in-process gauging device allows for easy automatic dimension management
  • A cutting speed control servomechanism that controls the electropneumatic regulator for pressurizing the grindstone is employed, allowing you to assign pressure and speed settings at multiple steps for significant improvements in accuracy and efficiency

Work piece: Cylindrical roller

Machine Specifications

1) Machining range
O.D. 2.5 - 50 mm
Length 2.5 - 55 mm
R (Curvature) R 250 - R 4,000 mm (Only for spherical surface machining)
2) Work piece support system
Two rolls One shoe, centerless support system
3) Roller drive unit
Revolution 933 rpm (Max.)
Rough/Finish automatic multi-step change-over
Roller O.D. 105 mm (110 mm: work piece O.D.10 - 18)
Motor 0.75kW 6P Inverter control
4) Stone head unit part
Stone pressurization unit
Stone spindle revolution 5,400 r/min (Max.)
Stone O.D. 50 mm (Max.)
Stone pressure effective applied area 4.9cm²
Stone pressure effective stroke 35 mm
Stone pressurization system Pneumatic drive, electropneumatic regulator,
Rough/Finish automatic multi-step change-over
Motor 0.75kW AC Servomotor
Approach slide unit
Movement amount 50 mm
Feeding speed 0 - 150 mm/sec.
Minimum feeding amount 0.001 mm
Motor 0.2kW AC Servomotor
5) Stone lapping unit
Oscillation frequency 1,500 fpm (Max.)
Rough/Finish automatic multi-step change-over
Amplitude 0.5, 1.0 mm, Amplitude is changeable by cam ring
Front/back position adjustment amount 55 mm
Motor Servomotor
6) Machine size
(W) 2,200 × (D) 1,496 × (H) 2,090 mm
7) Machine weight
3,500 Kg

Note : Specifications are subject to change without notice.

Other data