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TBT Tiefbohrtechnik GmbH + Co BW250

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

Drilling Unit Information:
- Number of spindles: 1
- Infinitely variable spindle speed: 0 - 8000 rpm
- Spindle drive power: 17 kW at 100% ED S1 operation / 20 kW S6 operation
- Maximum drilling depth: 1800 mm / 2100 mm with pilot drilling without drill bush holder
- Minimum/maximum drilling diameter: 4 - 40 mm based on ST 60
- Maximum thread cutting: M30
- Milling material removal rate: 475 cc/min

Traverse Axes:
- X-axis travel: 2000 mm
- Y-axis travel: 1000 mm
- Z-axis travel: 2200 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 hole drilling oil, type HSD 400
- Total capacity: 2400 liters
- 1x hinged belt chip conveyor
- 1x screw conveyor
- 1x hydraulic unit and pneumatic unit/equipment
- 1x oil mist extraction unit

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

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

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

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

- 1x compact band filter:
Filtering capacity: 175 l/min
For machining steel/non-ferrous metals

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

- 1x water cooler:
Cooling capacity: 30 kW

Milling and Drilling Spindle Unit:
- Spindle housing with AC motor spindle
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- The position of the machining unit on the Y-column enables true 4-side machining at table center
- Swivel axis device, swivel range: -30°/+15°

2x manual steady rests:
- On guide rails with manual positioning
- Can be swiveled away and manually opened and closed

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

Pickup Tool Magazine:
- For standard tools
- 36 tool storage positions
- Max. tool holder: HSK 63 / Max. permitted tool diameter: 100 mm / Max. permitted tool length: 300 mm
- Tool transfer from 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: 1250x1250 mm
- 360° rotary workpiece table
- Load capacity (centered): 10 t
- Workpiece swing diameter: 2000 mm

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

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

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