Union BF130.8
This model was not found in Union's current lineup when we checked on 2026-10-03 . It may be a superseded or older model; the specifications below are as we last recorded them.
Key Specifications
X Travel
Y Travel
Z Travel
Max Spindle
Table Size
Spindle Power
How much does the Union BF130.8 cost?
Estimated price range
Our best estimate for a cnc boring machine in this class — not a quote from Union. Configuration moves it a long way.
Overview
The Union BF130.8 is a boring mill with a 130 mm spindle and a work envelope of up to 5,000 mm in X, 2,500 mm in Y and 1,500 mm in Z, with an 800 mm W-axis on top of that. The model is not in Union's current lineup, so this page works from the listed figures, which are unverified.
Load capacity is the headline. A workpiece of 25,000 kg can be set on a floor plate, and the optional rotary table is listed with the same capacity, up to 25,000 kg, on a 1,600 x 1,400 mm table. Here the rotary table is not the weaker link: a part at the weight limit can still be indexed for four-sided work, provided the machine in question has the table fitted.
Reach comes from two axes together. Z gives 1,500 mm and W adds 800 mm of spindle travel, so the depth needed to get into a part can be split between the two. The drive is 52 kW with a 2,500 rpm maximum. The BF110.8 runs faster, at 3,000 rpm, but with 37 kW and a 10,000 kg workpiece limit, so the choice between the two is between speed and capacity.
Machine weight is approx. 42,000 kg and the control is a Siemens SINUMERIK 840D sl. Any BF130.8 on offer should be checked for its actual X stroke, since the figure is given as an upper limit.
Full Specifications
| Parameter | Value |
|---|---|
| Spindle Diameter | 130 mm |
| X-Axis Travel | up to 5,000 mm |
| Y-Axis Travel | 2,500 mm |
| Z-Axis Travel | 1,500 mm (W-axis: 800 mm) |
| Max Spindle Speed | 2,500 rpm |
| Spindle Motor Power | 52 kW |
| Table Size | 1,600 x 1,400 mm (rotary table option, up to 25,000 kg capacity) |
| Max Workpiece Weight | 25,000 kg (on floor plate) |
| CNC Control | Siemens SINUMERIK 840D sl |
| Machine Weight | approx. 42,000 kg |
Specifications compiled from manufacturer literature and industry references. Not independently verified against a published spec sheet — confirm with the manufacturer or an authorised dealer before making a purchasing decision.
Strengths & Limitations
Strengths
- 25,000 kg workpiece weight on a floor plate, with the optional rotary table also listed at up to 25,000 kg capacity
- Up to 5,000 mm of X travel with 2,500 mm of Y
- 1,500 mm of Z travel plus an 800 mm W-axis
- 52 kW spindle drive behind a 130 mm spindle
Limitations
- Spindle speed is limited to 2,500 rpm; the BF110.8 lists 3,000 rpm
- The rotary table is an option, so a given machine may not have one
- At approx. 42,000 kg the machine needs a dedicated foundation and heavy rigging
- X travel is listed only as an upper limit of 5,000 mm, so the stroke of a specific machine must be checked
Best For
Frequently Asked Questions
01
The listed maximum workpiece weight is 25,000 kg on a floor plate. The rotary table option is listed with a capacity of up to 25,000 kg as well, on a 1,600 x 1,400 mm table. Check which of the two a specific machine has, because the rotary table is not standard.
02
Up to 5,000 mm in X, 2,500 mm in Y and 1,500 mm in Z, with a W-axis of 800 mm. The BF110.8 is listed with up to 4,000 mm, 2,000 mm and 1,000 mm and a 700 mm W-axis, so the BF130.8 is the larger machine on every axis.
03
The listed figures give 52 kW of spindle power and a maximum of 2,500 rpm on a 130 mm spindle. No torque figure or taper is listed, so ask for the gear ranges and the tool interface of the machine being offered before planning heavy cuts.
04
A Siemens SINUMERIK 840D sl is the listed control. The machine weighs approx. 42,000 kg, so moving one involves foundation work as well as recommissioning the control and drives. Software options are not listed and should be read from the machine.
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