used Surface and Profile Grinder BLOHM PLANOMAT 412 CNC
| manufacturer: | BLOHM |
| type: | PLANOMAT HP 412 CNC |
| built: | 2008 |
| control: | SINUMERIK 840 D |
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. |
| Control: |
| SINUMERIK 840 D 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) |