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TBT Tiefbohrtechnik GmbH + Co BW250

The drilling method of the deep hole drilling machine is single-lip gun drilling.

Drilling Unit Information:
- Number of spindles: 1
- Spindle speed steplessly adjustable: 0 - 8,000 rpm
- Spindle drive power: 17 kW at 100% ED S1 operation / 20 kW S6 operation
- Max. drilling depth: 1,800 mm / 2,100 mm with pilot drilling without drill bush holder
- Min/max drilling diameter: 4 - 40 mm based on ST 60
- Max. thread tapping: M30
- Milling material removal rate: 475 ccm/min

Travel distances:
- X-axis travel: 2,000 mm
- Y-axis travel: 1,000 mm
- Z-axis travel: 2,200 mm

Travel speed:
- X-axis speed: 15,000 mm/min
- Y-axis speed: 15,000 mm/min
- Z-axis speed: 15,000 mm/min

Fluid Information:
- Coolant supply: deep drilling oil type HSD 400
- Total volume: 2,400 liters
- 1x scraper-belt chip conveyor
- 1x screw conveyor
- 1x hydraulic unit and pneumatic unit/equipment
- 1x oil mist extractor

- 1x central lubrication:
Central lubrication system for oil impulse lubrication

- 1x submersible pump:
Pump capacity: 200 l/min
Pump drive: 1.1 kW

- 1x submersible pump:
Pump capacity: 500 l/min
Pump drive: 2.2 kW

- 1x submersible pump:
Pump capacity: 100 l/min
Pump drive: 5.5 kW

- 1x compact belt filter:
Filter capacity: 175 l/min
For machining: Steel / non-ferrous metals
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- 1x radial piston pump with remote adjustment:
Delivery rate: 2 - 120 l/min
Pump drive: 11 kW

- 1x water chiller:
Cooling capacity: 30 kW

Milling and drilling spindle unit:
- Spindle housing with AC motor spindle
- The position of the machining unit on the Y-column allows central table 4-sided machining
- Swivel axis device with swivel range -30°/ +15°

2x manual steady rests:
- On guide rails with manual positioning
- Hinged and can be manually opened and closed

Drill bush holder:
- Precise changeover between deep hole drilling with guide bush and conventional machining, or deep hole drilling with pilot hole
- Automatic change of the guide bush holder via conventional tool magazine

Pickup tool magazine:
- For conventional tools
- 36 tool storage spaces
- Max. tool mounting HSK 63 / max. permitted tool diameter 100 mm / max. permitted tool length 300 mm
- Tool transfer from tool magazine to spindle via NC-controlled spindle positioning
- 1 slot for drill bush holder

Clamping table with X-axis and NC rotary table:
- Length/width: 1,250 x 1,250 mm
- 360° rotatable workpiece table
- Center load capacity: 10 t
- Workpiece swing diameter: 2,000 mm

Electrical equipment information:
- 1x CNC control Sinumerik 840D SL (digital complete system), including PLC S7-300

Connection data:
- Operating voltage: 3AC 400V ± 10%
- Frequency: 50 Hz
- Control voltage: 24 V DC
- Total connected load: 40 kW

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