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GEIBEL & HOTZ FS 840 Z CB

Technical details
grinding length 800 mm
grinding width 400 mm
workpiece height 375 mm
weight of the machine ca. 3,5 t
Additional information
CNC Precision Surface and Profile Grinding Machine

This machine is ideally suited for precision applications
in tool and mold making.

Technical Details:
Grinding surface: 800 x 450 mm
Grinding area: 800 x 400 x 375 mm
Table load (max.): 700 kg

X-axis = Longitudinal movement of worktable
Table longitudinal stroke: 20 - 850 mm
Table drive: Electromechanical with toothed belt drive
Table speed: 5 - 35,000 mm/min
Table setup: Electric handwheel and direction push button

Y-axis = Vertical movement
Distance from table to spindle center: 140 - 525 mm
Vertical drive: Electromechanical with ball screw
Vertical speed: 50 - 2,000 mm/min
Vertical adjustment via electric handwheel and direction pushbuttons
Minimum infeed 0.001 mm
Measuring system: glass scale

Z-axis = Transverse movement
Maximum transverse travel 400 mm
Drive type: electromechanical with ball screw
Transverse speed 50 - 2000 mm/min
Transverse travel adjustment via electric handwheel and direction pushbuttons
Measuring system: glass scale

C-axis = Grinding spindle
Grinding spindle motor 7 kW
Grinding spindle speed 1400 rpm
Grinding wheel standard 300 x 50 x 76.2 mm
Spindle bearing: Precision roller bearing
Lubrication: Lifetime lubrication

Connected load: approx. 19 kVA
Total weight: 3500 kg

Equipment:
- Electro-permanent magnetic chuck
Clamping surface 800 x 400 mm,
Pole spacing 18 mm, with 16-stage holding force control and automatic
Magnetic pole reversal for demagnetization
- Leveling blocks
For setting up and leveling the machine
- Grinding wheels and two flanges
- Partial enclosure
Open at the top for loading with a sliding door
- Dressing system
Consisting of a holder for a prism arm or fork dresser
Practicle arm for single-point diamond (MK O) or shaped diamond
- Grinding spindle speed control
Peripheral speed 10-32 m/s
The peripheral speed of the grinding wheel is kept constant
(V-constant control) with a 7 kW grinding spindle motor
- Universal paper belt filter unit UPF 100
Tank capacity approx. 280 liters,
Pump capacity 20 liters/minute at 1.5 bar
- Air purifier
Flow rate approx. 1000 m³/h
- Compressed air ports
For easier removal of large workpieces
with a manual compressed air valve in the machine's work area.
- Mobile balancing unit
With optical operator guidance for dynamic balancing of the
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grinding wheel directly in the machine.
Imbalance size and position are calculated automatically.
With transport case.
- Cleaning set
Hand-held impulse nozzle for cleaning the work area
- Documentation/Manual

For sale is our reliably operating grinding machine from mold making.

The machine was purchased new in 2016 and is in good technical condition,
having been used for a maximum of 20 hours per week.

It runs perfectly and is being sold solely due to an investment in a
larger model.