used Surface and Profile Grinder BLOHM PLANOMAT 412 CNC

manufacturer: BLOHM
built: 2008
control: SINUMERIK 840 D
Maschine ab Standort verfügbar

Technical Equipment / Features

The surface and profile grinding machine BLOHM Planomat HP 412 built in 2008 is equipped with a Siemens SINUMERIK 840D control system. This control offers automatic grinding cycles for plan, plunge and deep grinding in combination with graphic-supported operator guidance.
High-precision and digitized ball screws in all axes guarantee high accelerations and table speeds of up to 40 m\min. Preloaded and low-maintenance linear guides in all axes, linear scales in the Y and Z axes and a grinding spindle drive with 15 kW complete the equipment package of the BLOHM Planomat HP412.
Grinding area:
grinding area 1.200 x 400 mm
travel cross (Z-axis) 360 mm
distance table surface - grinding spindle center 700 mm max.
travel vertical  (Y-axis) 550 mm
Workpiece table:  
Electro permanent magnetic clamping plate 1.200 x 400 mm
swing-pole pitch 18 mm
clamping force control 8 steps
Table drive (X-axis):  
digital servo motor with ball screw drive and angle encoder in the longitudinal axis (X-axis)  
table speed 30-40.000 mm/min
pretensioned precision rolling guide  
Automatic vertical feed (Y-axis):
resolution 0,001 mm
smallest feed size 0,001 mm
measuring system linear scale
distance spindle centre - table 150-700 mm
grinding head vertical 550 mm
ball screw drive with servo motor and planetary gearbox, pretensioned precision rolling guide  
Cross feed (Z-axis):
resolution 0,001 mm
smallest feed size 0,001 mm
measuring system linear scale
column cross max. 360 mm
ball screw drive with servo motor, preloaded precision rolling guide  
Grinding spindle head:
motor - version three-phase motor adjustable
power 15 kW ab. 1.000 min-1
grinding spindle speed adjustable 45 - 6.000 min-1
spindle bearing axial and radial back-lash free
grinding wheel dimensiones max. 400 x 80 x 127 mm
Rolling bearing mounted grinding spindle in block design with pretensioned high precision spindle bearings and permanent grease lubrication, spindle axially and radially pretensioned backlash-free.
peripheral grinding wheel speed 35 m/s
Automatic grinding wheel balancing system make DITTEL, type SIE: Automatic balancing of the grinding wheel on the grinding spindle without stopping the spindle drive.
With 10.4" TFT colour monitor
Ms-Windows user interface module PCU 50 with graphical user interface
- With digital drives and integrated matching controls
- CNC user memory 1.5 Mbyte for programs and data
Main memory 256 Mbyte SDRAM
Hard disk 40 GByte, of which3 Gbyte freely available for user programs
- MPI interface, USB V 1.1 (1 x external, 1 x internal), Ethernet 10/100 Mbps
Floppy disk drive interface
- User-friendly manual grinding and automatic grinding sequences
- Graphic-supported input of workpiece data
- Infeed in automatic mode can be selected on one or both sides
- Constant cutting speed control, error messages in plain text
Technology grinding:
L 929 Preparation for path grinding
L 930 Deep grinding
L 933 Plunge grinding intermittent
L 934 Flat grinding intermittent
L 935 Surface grinding manual
L 936 Plunge grinding with manual infeed
L 937 Surface hand intermittent
L 938 Surface continuous
Technology dressing:
L 941 circumferential dressing from table
Auxiliary cycles:
L 993 Approach safety height
L 994 Move to loading position
Other Equipment and accessories:
- Linear measuring systems in all three axes
- All linear axes with digital servo motors and ball screw drive
- Coolant system with paper band filter, tank capacity 1,200 l, coolant pump 200 l/min/4 bar
- Automatic coolant nozzles - tracking
- Automatic work area door pneumatically controlled
- Electro-permanent magnet plate 1.200 x 400 mm, pendulum pole pitch 18 mm
- Automatic grinding wheel balancing device DITTEL
- Complete enclosure of the work area with automatically operated door, safety guard locking in automatic mode
- Portable electronic handwheel in automatic and manual mode for all axes
- Machine lamp in the working area
- Three-colour signal lamp
- Electrical equipment 400V/50Hz
- Coolant device for electrical cabin
- Painting RAL 9002 (grey white), RAL 5010 (gentian blue)