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BLOHM PROFIMAT DK312 DescriptionBLOHM PROFIMAT DK312 DescriptionDescription

X - Axis / table longitudinal movement:
- Adjustment element  Ball screw drive; ground
- Drive system        Servo motor with transistor actuator
- Speed               10…10000 mm/min
- Measuring system    Incremental encoder

V- and Y - Axis / Grinding head vertical movement:
- Adjustment element  Ball screw drive; ground
- Drive system        Servo motor with transistor actuator
- Speed               1…1000 mm/min
- Measuring system    Incremental encoder

C - Achse / Grinding head drive system:
- Spindle drive      Direct current motor, each drive 79 KW, 4Q, 700... 3000 min/1
- Speed tracking     automatically
- Grinding spindle   Roller bearing insertion spindle / dia. 200 mm

Special grinding wheel flanges:
Grinding wheels up to dia. 600 mm, wheel bore 203 mm, clamping width 150 mm, equipped with balancing
chambers for Dittel balancing device, provided for the removal work piece.

Profile-Overhead dressing unit PEA/K (CD grinding):
Designed for continuous (CD) as well as intermittent(IPD) dressing of grinding wheels, mounted on the side
of the grinding heads, suitable for diamond profiling rolls with a max. roll width of 160 mm, max. profile
width 130 mm, dressing movement via ball screw spindle and direct current servo motor. Diamond roll
drives via infinitely variable DC drives in 4-quadrant design, power P = 5.0 kW. Speed range n = 350 ... 5350
min-' (of the diamond roller)

Machine control system:
Siemens SINUMERIK 8 MC with integrated adjustment (adapted) control
Basic program:
- Full-cut grinding with continuous dressing (CD)
- Subprogram technology
- NC program memory 32 k, of which 3 k are used for basic programs and cycles
- Linear, circular interpolation
- Serial interface RS 232 C (V 24) at the NC control cabinet
- Punched tape reader without winder
- Calculation and compensation of dressing amounts
- Feed correction (override) for all NC axes
- Metric dimension input
- Plasma display, information and operator guidance in plain text (currently in French)
- Working area limitation by programmable software limit switches
- Loss of programme and parameters protected by battery buffering
- Set-up panel mounted on the front left of the machine bed without handwheel
- Set-up panel at the rear with handwheel
- Spindle pitch error compensation
- Memory extension to 64 k
- Axis extension for 4th and 5th axis

To increase the peripheral speed of the grinding wheel above 35 m/sec. to 45 m/sec.

Coolant purification system:
Drum belt filter unit KBF 1000/1500-1000-200/6 + 100/3,5
consisting of:
- Drum belt filter with an average flow rate of 1000 ltr./min.
- Clean water tank with a tank volume of approx. 5000 ltr.
- 2 supply pumps 200 ltr./min. at 6 bar for coolant supply from both sides
- 2 supply pumps 100 ltr./min. at 3.5 bar for coolant supply PEA head (dressing units)
- 1 pumping station for collecting the contaminated coolant
- 1 fibre fleece roll, 1040 mm wide and 350 m long

Chiller (for the coolant purification system):
Power 33,8 kW (29000 kcal/h)

Table dressing unit PEA-T 58:
Left-hand side mounted on the machine table, mounted / installed in row
Movable substructure to accommodate the table dressing device
incl. pneumatic equipment and control system

Item Id #   389
Manufacturer   Blohm
Model / Type   DK312
Year of manufacture   1990
Machine available from   immediately
Machine condition   good
Machine location   France
Delivery terms   EXW
Payment terms   100% payment prior to collection