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WALDRICH COBURG 8 DH 3536 10000

WALDRICH COBURG hydraulic double-column planing and grinding machine

Control: conventional contactor-based control
Operation: original Waldrich Coburg main operator panel with push buttons, rotary switches, analog displays, and emergency stop
Display / Positioning: 2 x HEIDENHAIN POSITIP digital position indicators / positioning aids at the main operator panel
Additional control units: Siemens SIMATIC HMI KTP700 / KTP400 for grinding support and grinding attachment

Partial retrofit in 2021: approx. €170,000
Ongoing modernizations / retrofit up to 2021
Retrofitted grinding attachment
Modernized grinding support
Siemens/Lenze drive technology
Switch cabinet and modernization documentation available

Working area
Maximum planing width / clamping: 1,750 / 1,790 mm
Maximum passage height: 1,850 mm
Total clamping surface: 10,900 x 1,500 mm
Additionally documented: 2 x 4,750 x 1,500 mm
Usable table/length value per spec card: approx. 10,200 mm
T-slots: 7 pcs
T-slot pitch: 210 mm
T-slot width: 28 mm
Minimum width between split/cross beams: 420 mm

Crossbeam / Columns / Supports
Number of crossbeams: 2
Number of columns: 2
Crossbeam horizontal travel: 1,960 mm
Crossbeam vertical travel: 250 mm
Column horizontal travel: 550 mm
Column vertical travel: 1,850 mm
Support swivel range: +/- 60°
Support tilting range: +/- 25°

Speeds / Feeds
Working speed: 5 - 60 m/min
Return speed: 5 - 60 m/min
Vertical cross-rail slide: 0.1 - 7.5 mm
Horizontal cross-rail slide: 0.1 - 15 mm
Vertical column slide: 0.1 - 7.5 mm
Horizontal column slide: 0.1 - 7.5 mm

Dimensions / Weight / Electrical connection
Footprint: 22.67 x 3.97 m
Height: 3.95 m
Weight: approx. 51,872 kg
Voltage: 500 V
Circuit protection: 125 A
Current type: three-phase
Frequency: 50 Hz

Grinding support / Grinding attachment
Grinding support with grinding spindle
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Guideway system with base body and Z-axis
Y-axis grinding support converted to ball screw 40 x 10
Preloaded twin nut
Single-axis control for infeed axis
Right-angle gear motor 72 Nm
Synchronous servo motor 11 Nm with absolute encoder
Rittal compact switch cabinet

Grinding spindle / grinding wheel drive
Siemens asynchronous motor for grinding spindle
9 kW at 1,500 rpm / 57 Nm
10 kW at 1,750 rpm / 55 Nm
Maximum speed: 9,000 rpm
Siemens SINAMICS drive technology
Siemens SIMATIC control unit for grinding support / grinding attachment
Lenze L-force axis drive for Y-axis grinding support
Separate switch cabinets for grinding wheel drive and Y-axis grinding support

Cooling / Hydraulics
Schimpke DK150-V cooling unit
Cooling capacity approx. 17.5 kW
Cooling medium: oil ISO VG46
Gear pump approx. 135 l/min at 10 bar
Pump motor approx. 5.5 kW
Transformer 500 V to 400 V
Separate hydraulic/power unit block available

Mechanics / Overhaul
Partial overhaul of bed/table, crossbeams with slides Y1/Y2, Z1-axis planer support, and lubrication system
Machine bed hand-scraped
Bed geometry restored
Table hand-scraped
Guideways reworked
Slides Y1/Y2 hand-scraped
Rails coated and hand-scraped
Steel band replaced
Central lubrication extended
Scrapers replaced
Crossbeam lift repaired
Worm shaft, drive shaft center, coupling pieces, and rolling bearings replaced
X-axis bellows replaced

Condition / Equipment
Column area newly painted
Table and functional surfaces in very good condition
Accessories, assemblies, and spare parts available

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