Hydraulic Internal Grinding Machine with Face Grinding Equipment
Model RJ 133 / 5K
Year approx. 1965 Serial No. 50-430

Internal grinding Æ, min./max. 20 / 300 mm
Grinding depth 250 mm
Table stroke, min./max. 5 / 500 mm

Height of centres above table 250 mm
Swing Æ in the table recess 550 mm

Workspindle bore 45 mm
Swivability of workhead 25 °
Max. taper angle which can be ground 50 °
Infeed, according to diameter, max. 1 mm
Cross movement of grinding head right / left 50 mm / 100 mm

Workspindle speeds 42 - 400 rpm
Grinding spindle speeds, max. 10,000 rpm

Table speeds, infinitely variable 0.1 - 8 m/min

Grinding spindle drive 4 kW
Total electical load approx. 10 kW - 380 V - 50 Hz
Weight approx. 4,500 kg

Accessories / Special Features
* Manually swivable face grinding equipment with cup wheel,
approx. Æ 80 mm, and built-on dressing device. Longitudinal
travel approx. 250 mm. N = max. 6,200 rpm.
* FORTUNA Internal Grinding Spindle, Model SI 80 x 630,
n = 10,000 rpm.
* Hydraulically swivable diamond dressing device for the internal
grinding spindle.
* 2 extra clamping devices for ring-formed parts of various
diameters, with FORKHARDT Pneumatic Clamping Device.
* Separate internal grinding spindle, etc.