Fully Automatic Centerless O.D. Stone Lapping Machine

for outer diameter of shafts for hydrodynamic bearing

Standard application range : OD 2.5 - 5 mm x Length 4 - 10 mm

RN-005

Main Features

  • Optimal for fully automatic machining of the outer diameter of incredibly small shafts
  • Stone lapping machine with compact, space-saving design. Developed for stone lapping of the outer diameter of hydrodynamic bearing shafts.
  • Infeed type with two-roller centerless support system

Work piece: HDD shaft

Machine Specifications

1) Machining range
O.D. 2.5 - 5 mm
Length 4 - 10 mm
2) Work piece support system
Two roll O.D centerless support system
3) Machining method
Infeed type, Plunge traverse work
4) Drive roller unit
Roller revolution Max. 1,000 rpm
Automatic multi-step change-over
Roller O.D. 55 mm
Motor AC servomotor
5) Stone lapping unit
Oscillation frequency Max. 4,000 fpm
Automatic multi-step change-over
Amplitude Amplitude is changeable by oscillating cam
Motor Inverter control
6) Slide table unit part
Movement amount 70 mm
Feeding speed 0 - 100 mm/sec.
Minimum feeding amount 0.001 mm
Motor AC servomotor
7) Stone head part
Stone pressurization Pneumatic drive, slant type, auto-slide system
Automatic multi-step change-over
Stone pressure stroke 45 mm
Stone engage stroke 2.5 mm
8) Pressure unit part
Movement amount Pneumatic drive 10 mm
9) Backing head part
Fixed type
10) Delivery unit inside M/C system
Motor AC servomotor
11) Machine size
(W)1,590×(D)1,205×(H)1,660 mm
12) Machine weight
1,500 Kg

Note : Specifications are subject to change without notice.