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TBT Tiefbohrtechnik GmbH + Co BW250-T

The deep drilling method used by the deep hole drilling machine is single-lip deep hole drilling.

The BW250-T is a deep hole drilling and milling center with two separate spindles, one for deep hole drilling and one for milling operations. The machining units share an additional travel axis, which makes it possible to machine smaller workpieces from four sides on the clamping table without repositioning.

Drilling and milling unit information:
- Number of spindles: 1 drilling spindle and 1 milling spindle
- Infinitely variable spindle speed: 0 - 5,000 rpm
- Spindle drive power: 17 kW at 100% duty cycle (S1 operation)
- Torque: 260 Nm at 100% S1 operation
- Maximum drilling depth: 1,500 mm (in one pass, without reset)
- Drilling diameter: 4 - 40 mm based on ST 60

Travel paths:
- X-axis travel: 2,500 mm
- Y-axis travel: 1,500 mm
- Z-axis travel: 850 mm
- V-axis travel: 1,000 mm

Travel speeds:
- X-axis speed: 10,000 mm/min
- Y-axis speed: 10,000 mm/min
- Z-axis speed: 6,000 mm/min

Swivel axis device for drilling and milling unit:
- The drilling and milling unit has a horizontal swivel range of -25° / +15°

- 3x steady rests

Fluid information:
- Coolant supply: deep drilling oil
- Tank capacity: 2,400 liters

- 1x hinged belt chip conveyor

- 1x hydraulic unit and pneumatic unit / equipment
- 1x centralized lubrication

- 1x low-pressure pump:
Pump delivery rate: 100 l/min
Pump drive: 5.5 kW

- 1x compact belt filter:
Filtration performance: 175 l/min
For processing in: steel / non-ferrous metals

- 1x radial piston pump with remote adjustment:
Delivery rate: 2 - 120 l/min
Pump drive: 11 kW

- 1x oil mist extraction system,
Suction capacity: 2,400 m³/h

Tool magazine for standard tools
Including:
- Tool changer magazine with intermediate gripper
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- Tool holder HSK 63
- Max. allowable tool diameter: 127 mm
- Max. allowable tool length: 400 mm
- Tool storage positions: 40

Clamping table with X-axis and NC rotary table:
- Length / width: 1,600 x 2,000 mm
- Maximum load (centrically): 15 t
- Swing diameter for workpieces: 2,800 mm

Measuring devices
- Tool breakage monitoring and length measurement of BCM tools with automatic compensation in the control system

Electrical equipment information:
- 1x CNC controller TNC 640 Failsafe Heidenhain
- 1x drilling process monitoring
- 1x remote maintenance
- 1x dynamic collision monitoring
- 1x handheld control device

Connection data:
- Operating voltage: 3AC 400V ± 10% - frequency: 50 Hz
- Control voltage: 24 V DC
- Total connected load: 65 kW

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