WALDRICH COBURG Double-Column Planing 10m

WALDRICH COBURG 8 DH 3536 / 10 m

Hydraulic Double-Column Planing and Grinding Machine

Manufacturer: Waldrich Coburg

Original manufacturer name: Adolf Waldrich Coburg

Machine type: Hydraulic double-column planing machine

Model / construction type: 8 DH 3536 / 10 m

Year of manufacture: 1963

Year of purchase: 1963

Factory No.: 14.8685

Inventory No.: 2697

Current asset identification: Inv. 32637

CONTROL / OPERATION / POSITIONING

Control:

Conventional contactor control

Main operation:

Original Waldrich Coburg operator panel with push buttons, rotary switches, analogue displays and emergency stop

Position display / positioning:

2 x HEIDENHAIN POSITIP digital position displays / positioning aids on the main operator panel

Additional operating units:

Siemens SIMATIC HMI KTP700 / KTP400 for grinding support and grinding equipment

Additional Siemens SIMATIC HMI / PLC units for grinding support and grinding equipment

RETROFIT / MODERNISATION

Partial modernisation 2021: approx. 170,000 EUR

Ongoing modernisations / retrofit up to 2021

Retrofitted grinding equipment

Modernised grinding support

Siemens / Lenze drive technology

Switch cabinet and modernisation documentation available

Main modernisation areas:

Grinding support

Grinding spindle

Grinding wheel drive

Y-axis grinding support

Cooling unit

Lubrication system

Guideways

Crossbeam / slides

Z1-axis planing support

X-axis bellows

WORKING RANGE

Largest planing width / clamping width: 1,750 / 1,790 mm

Largest passage height: 1,850 mm

Total table clamping surface: 10,900 x 1,500 mm

Additionally documented: 2 x 4,750 x 1,500 mm

Usable table / length value according to machine card: approx. 10,200 mm

T-slots: 7 pcs.

T-slot spacing: 210 mm

T-slot width: 28 mm

Smallest width of crossbeam / gap area: 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

Cross planing slide feed:

Vertical: 0.1 - 7.5 mm

Horizontal: 0.1 - 15 mm

Column slide feed:

Vertical: 0.1 - 7.5 mm

Horizontal: 0.1 - 7.5 mm

DIMENSIONS / WEIGHT / ELECTRICAL DATA

Required floor space: 22.67 x 3.97 m

Machine height: 3.95 m

Machine weight: approx. 51,872 kg

Additional weight value according to machine card: 21,900 kg

Voltage: 500 V

Protection / fuse rating: 125 A

Current type: three-phase current

Frequency: 50 Hz

CUTTING / PERFORMANCE DATA FROM ORIGINAL MACHINE CARD

Chip cross-section for steel:

31 / 24 mm² at 30 m/min working speed

Further performance-related value on the original machine card:

72 / 56 mm² at 30 m/min working speed

Note from original machine card:

First value valid up to 1,600 mm planing height

Second value valid from 1,600 mm to 1,800 mm planing height

GRINDING SUPPORT / GRINDING EQUIPMENT

Retrofitted grinding support with grinding spindle

Guideway system with base body and Z-axis

Mechanical adaptation and installation of grinding support

Grinding support with existing / integrated electrical components

Y-axis grinding support converted to ball screw drive

Ball screw spindle: 40 x 10

Preloaded double nut

Single-axis control for infeed axis

Angular geared motor: 72 Nm

Synchronous servo motor: 11 Nm with absolute encoder

Rittal compact control cabinet

Visible drive technology for Y-axis grinding support:

Lenze L-force axis drive for Y-axis grinding support

GRINDING SPINDLE / GRINDING WHEEL DRIVE

Siemens asynchronous motor for grinding spindle

Power: 9 kW at 1,500 rpm / 57 Nm

Power: 10 kW at 1,750 rpm / 55 Nm

Maximum speed: 9,000 rpm

Siemens SINAMICS drive technology

Siemens SIMATIC operating unit for grinding support / grinding equipment

Separate control 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 against 10 bar

Pump motor: approx. 5.5 kW

Transformer: 500 V to 400 V

Separate hydraulic / aggregate unit available

Cooling unit data:

Air-cooled version with axial fan

Medium temperature: +20°C minimum / +35°C maximum

Ambient operating range: +10°C to max. +40°C

Refrigerant: R134a or similar, CFC-free

Control voltage: 24 V DC

Pipe connections: 2 x G 1 1/2" internal thread

Cooling unit dimensions: approx. 1,370 x 950 x 1,250 mm

Fixed-value control with digital temperature display

PT100 temperature sensor

Main switch

German documentation

MECHANICAL OVERHAUL / RECONDITIONING

Partial mechanical overhaul on:

Machine bed / table

Crossbeam with slides Y1 / Y2

Z1-axis planing support

Lubrication system

Machine bed / table:

Table lifted from machine bed

Machine bed double pattern scraped

Bed geometry established

Table blued and scraped to machine bed

Lubrication checked

Table surface planed

Crossbeam / slides Y1 and Y2:

Crossbeam removed

Guideways on crossbeam re-machined

Re-machined guideways double pattern scraped

Slides Y1 and Y2 blued and scraped

Tapered gibs and wrap-around gibs coated and scraped

Steel band renewed

Central lubrication newly installed

Wipers renewed

Preparation for ball screw conversion

Z1-axis / planing support:

Guideway system overhauled

Guideways re-scraped

Tapered gibs newly coated and scraped

Preparation for ball screw conversion

Lubrication system:

Existing central lubrication system converted

System extended with metering valves for the axes

Lubrication focused on moving axes

CROSSBEAM LIFT REPAIR

Crossbeam lift repaired

Worm gear with trapezoidal spindle dismantled

Broken M8 fastening screws found

Renewed components:

Worm shaft

Central drive shaft

Coupling pieces

Rolling bearings

BELLOWS

X-axis bellows renewed

New bellows manufactured as 100% replacement for existing bellows

ACCESSORIES / SPECIAL EQUIPMENT

Lubricating presses

Wrenches

Seals

Separate hydraulic / aggregate block

Additional components

Spare parts / accessories on pallets

CONDITION / EQUIPMENT

Column area newly painted

Table and functional surfaces in very good visual condition

Machine appears well maintained

Accessories, assemblies and spare parts available

Switch cabinet documentation available

Modernisation documentation 2018 - 2021 available

VISIBLE ELECTRICAL / CONTROL CABINETS

Main machine switch cabinet

Control cabinet for Y-axis grinding support

Control cabinet for grinding wheel drive

Operator unit for grinding support / grinding equipment

Original main operator panel with HEIDENHAIN position displays

DOCUMENTED MODERNISATION HISTORY

2018:

New Schimpke cooling unit DK150-V

Cooling capacity approx. 17.5 kW

2020:

Mechanical partial overhaul offered / documented

Machine bed / table

Crossbeam with slides Y1 / Y2

Z1-axis planing support

Lubrication system

2020:

Construction / conversion of grinding support

Grinding spindle

Guideway system

Base body

Z-axis

2021:

Partial modernisation of machine and installation of grinding equipment

Approx. 170,000 EUR

2021:

Y-axis grinding support conversion to ball screw drive

Single-axis control

Siemens touch panel

Servo motor with absolute encoder

Rittal compact control cabinet

2021:

Grinding spindle motor and control cabinet equipment

Siemens asynchronous grinding spindle motor

Siemens SINAMICS drive technology

Siemens SIMATIC control / HMI equipment

Operator panel for grinding spindle

2021:

X-axis bellows renewed

Cost approx. 10,600 EUR

2021:

Crossbeam lift repair

Worm shaft, central drive shaft, coupling pieces and rolling bearings renewed

SUMMARY

Waldrich Coburg 8 DH 3536 / 10 m hydraulic double-column planing and grinding machine with conventional contactor control, original Waldrich Coburg main operator panel, 2 x HEIDENHAIN digital position displays, retrofitted grinding equipment, modernised grinding support, Siemens SIMATIC HMI units, Siemens SINAMICS grinding spindle drive, Lenze axis drive for Y-axis grinding support, Schimpke cooling unit and documented mechanical overhaul / retrofit measures up to 2021.