Used SIELEMANN RFB 80 cylindrical grinding machine

Vertical Rotary – Internal- and Surface Grinding Machine with 2 Grinding Heads

Rotary table - Æ 800 mm
Max. workpiece-swing-Æ approx. 1.200 mm
Distance table center to grinding column 1.150 mm
Max. workpiece weight approx. 650 kg
Table stroke horizontal approx. 650 mm

Table speeds hydr.-infinitely variable ri/le 4– 100 rpm
Table-infeed (internal-/surface grinding) 0,025 - 0,025 mm/stroke
Table-Oscillation (stroke) 0,2 - 3.000 mm/min
Table-pause time during stroke switching 0-10 sec.

Internal grinding spindle:
Grindable bore-Æ 0 – 700 mm
Daylight under internal grinding spindle holder approx. 400 – 1.000 mm
Grinding slide stroke of internal grinding spindle, hydr. ca. 550 mm
Grinding spindle-height adjustment manual approx. 150 mm
Internal grinding spindle holder Æ max. 80 - 120 mm
Throat of internal grinding spindle 600 mm
Mounted internal grinding spindle (5.000 rpm)approx. 500 x 80 Ø mm
Surface grinding:
Segment grinding head-Ø (935 rpm) 450 mm
Daylight under segment head approx. 500 mm
Throat segment head to grinding column 400 mm

Drives for surface-/Internal grinding 18,5 / 4 kW
Total electr. Load approx. 30 kW - 380 V/50 cycles * Weight approx. 8.500 kg

Accessories / Special Features:
· Machine comes with rotary table and grinding column which swivells manually for swivelling of the appropriate grinding head including automatic clamping.
· Automatic infeed for internal grinding and surface grinding is done
by reverse switching of grinding slide/table stroke, with final switch off.
· Presettable reverse switching time 0-10 sec.
· Surface grinding head with dresser which can swivel, hydraulic weight compensation for grinding heads
· sep. hydraulic system * sep. switching cabinet * coolant facility