Kolonlu matkap GB 55 SK NC VARIO

Bernardo GB 55 SK NC VARIO

The GB 55 SK NC VARIO drill is supplied as standard with a large cross table and a 2-axis digital readout, making it suitable not only for drilling but also for precise milling operations. The automatic spindle feed and threading function significantly increase the capabilities of the machine. The stepless spindle speed adjustment in the range of 55–2200 rpm, combined with a robust construction and high drilling parameters, make this model ideal for use in serial or industrial production. The NC version features a programmable controller for setting drilling depth, spindle speed, and automatic threading function. Drilling diameter: 50 mm, Thread cutting up to M42.

NC model features:
- Programmable controller for setting drilling depth, spindle speed, automatic threading, etc.
- 6-step automatic spindle feed adjustable via electromagnetic clutch, including threading function.
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- Solid machine construction ensures vibration-free operation.
- Powerful drive motor designed for continuous duty.
- 2-axis digital display ensures precision machining.
- Sturdy base plate with T-slots and integrated coolant system.
- Comprehensive standard equipment.
- Quiet operation thanks to hardened and ground gears.
- Guards meet the latest CE standards.
- Automatic tool ejector for quick tool change.
- Standard electronic indicators for drilling depth and spindle speed.
- Stepless regulation of spindle speed.

Technical Specifications:
- Max. drilling capacity: 50 mm
- Drilling in cast iron: 60 mm
- Max. tapping capacity: M42
- Drill chuck: 1–13 mm / B16
- Spindle taper: MK4
- Min. spindle speed: 55 rpm
- Max. spindle speed: 2200 rpm
- Speed change – number of ranges / stepless: stepless (55–348 / 348–2200)
- Transmission type: gears
- Automatic spindle feed range: 0.08 / 0.12 / 0.17 / 0.24 / 0.35 / 0.50 mm/rev
- Table swivel: -45° to +45°
- Max. spindle/column distance: 380 mm
- Max. spindle/table distance: 480 mm
- Max. spindle/base plate distance: 1165 mm
- Quill travel: 210 mm
- Column diameter: 150 mm
- Table size – width: 800 mm
- Table size – depth: 280 mm
- Cross table travel XxY: 415x290 mm
- Number/size/spacing of T-slots: 14 mm
- Motor power S1 100%: 3.0 kW
- Voltage: 400 V
- Dimensions (W x D x H): 1230 x 1240 x 2310 mm
- Weight: approx. 800 kg

Scope of Delivery:
- 2-axis ES-12H LCD digital display
- Cross table
- Drill chuck 1–13 mm / B16
- Arbor MK4 / B16
- Reducing sleeves MK4/3, MK4/2, MK3/1
- Coolant system
- Threading mode
- Electromagnetic spindle
- Automatic tool ejector
- LED lighting
- Moveable guard
- Electronic indicators for drilling depth and spindle speed
- Stepless spindle speed adjustment

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