CNC machining center

Hommel Unverzagt GmbH UVA 725 Plus

For sale is a UVA 725 Plus, year of manufacture 2011, a compact and exceptionally robust vertical CNC machining center from the Hommel-Unverzagt Group – equipped with a Heidenhain TNC 620 control system and SK40 spindle taper.

The machine was in production until recently, but currently does not boot fully due to a control error (CC unit).

Technical Data

Travels:
X-axis: 725 mm
Y-axis: 460 mm
Z-axis: 460 mm

Spindle:
Speed: 10,000 rpm
Tool holder: SK40
Max. tool diameter: 100 mm
Max. tool length: 300 mm
Max. tool weight: 7 kg

Tool magazine:
Capacity: 24 slots
Tool change time: approx. 2 s

Table:
Dimensions: 760 × 420 mm
Max. table load: 400 kg

Machine dimensions (L×W×H): approx. 2200 × 2100 × 2300 mm
Weight: approx. 3600 kg

Condition & Fault Description:
The machine was running flawlessly until recently but now displays various axis configuration and CC/PLC errors at startup:
Heidenhain TNC 620 errors include:
- “Timeout during processing of CC command”
- “The PLC program has been stopped”
- “HSCI initialization faulty”
- “HSCI Ethernet connection interrupted”
- “Configuration of axis X/Y/Z/S faulty”

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The Command/Control unit (CC) has already been replaced, but the error persists.
Therefore, the machine is offered as defective / for repair or as a source of spare parts.

Accessories & Scope of Delivery:
- Several SK40 tool holders (various sizes, collet chucks, end mill holders, etc.)
- Chip conveyor (complete unit)
- Machine frame / chip drawer / collecting trays
- Hydraulic unit / coolant pump
- Machine documentation

Documentation includes:
- UVA 725 Plus Parts Manual
- Operating Manual Heidenhain TNC 620
- Delivery / Preparation / Installation Guide (UVA 550–1600)
- Heidenhain TNC 620 User Manual (large folder)

Machine Data (according to nameplate):
Model: UVA 725 Plus
Serial number: 71L1261109
Year of manufacture: 2011
Manufacturer: Hommel Unverzagt GmbH
Weight: 3800 kg
Manufactured for Hommel Unverzagt in Taiwan

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