Röders RXP400
Key Specifications
Max Spindle
Spindle Taper
Tool Capacity
Table Size
machining range
t slots
How much does the Röders RXP400 cost?
Price estimate
We do not have a price for the Röders RXP400 that we can stand behind, so we show no number. Configuration, options and installation move the final price a long way: a quote is the reliable figure.
Overview
The Röders RXP400 is the smallest machine in the RXP range, a 3-axis high-speed mill with a machining range of 310 mm x 294 mm x 210 mm (12.2 x 11.6 x 8.3 in). Röders describes it as a machine for high-precision micro-machining with high rpm, and the spindle choice shows what that means: 50,000 rpm with HSK E25 or 40,000 rpm with HSK E32 as standard.
Those two spindles set the tool sizes. Maximum tool diameter is 6 mm with HSK E25 and 10 mm with HSK E32, and HSK E32 is the largest interface the machine takes. This is a finishing and small-cutter machine by design. Clearing a pocket with a large cutter is outside what the interface allows, and Röders states plainly that grinding is not possible on this model.
The table measures 450 mm x 300 mm (17.7 x 11.8 in) with 12 mm T-slots at a distance of 50 mm, and integrated chucks are an option. It carries a workpiece of up to 100 kg (220 lb), far more than the 15 kg of the 5-axis RXP400DS, so the 3-axis version is the one for electrode holders, small mould inserts and fixture plates with several parts. There is 325 mm (12.8 in) between spindle nose and table.
Tools sit in a linear changer with 18 places. Chain changers with 40, 70 or more places are optional and can be loaded during machining, which matters on long unattended electrode runs. A measuring laser is integrated. The machine weighs about 3.2 t and needs a space of W 2,480 mm x L 1,995 mm x H 2,080 mm, with chips collected in 1 chip box unless the optional conveyor is ordered.
Full Specifications
| Parameter | Value |
|---|---|
| Machining Range | 310 mm x 294 mm x 210 mm (12.2 x 11.6 x 8.3 in) |
| Table Size | 450 mm x 300 mm (17.7 x 11.8 in) (integrated chucks optional) |
| T-Slots | 12 mm (0.47 in), distance 50 mm (2.0 in) |
| Distance Spindle Nose to Table | 325 mm (12.8 in) |
| Max Workpiece Weight | 100 kg (220 lb) |
| Feed Rate | 0–42,000 mm/min (0–1,654 ipm) |
| Max Spindle Speed | 50,000 rpm with HSK E25 or 40,000 rpm with HSK E32 (standard; others on request) |
| Spindle Taper | HSK E25 or HSK E32 |
| Max Tool Diameter (full magazine) | 6 mm (0.24 in) for HSK E25; 10 mm (0.39 in) for HSK E32 |
| Tool Capacity | 18 places (linear), optional 40, 70 or more places (chain changer – can be loaded during machining) |
| Tool Measurement | Integrated measuring laser |
| Chip Disposal | In 1 chip box, optional chip conveyor |
| Machine Weight | ~3.2 t (~7,055 lb) |
| Required Space | W 2,480 mm x L 1,995 mm x H 2,080 mm (97.6 x 78.5 x 81.9 in) |
Specifications sourced from roeders.de — verified 2026-10-05
Strengths & Limitations
Strengths
- Standard spindle choice of 50,000 rpm with HSK E25 or 40,000 rpm with HSK E32 for small-tool, high-speed work
- 450 mm x 300 mm (17.7 x 11.8 in) T-slot table carries up to 100 kg (220 lb); integrated chucks are optional
- Optional chain changers with 40, 70 or more places can be loaded during machining
- Integrated measuring laser for the tools
- Small installation: W 2,480 mm x L 1,995 mm x H 2,080 mm and about 3.2 t
Limitations
- Maximum tool diameter is 6 mm with HSK E25 and 10 mm with HSK E32, which rules out larger roughing cutters
- Röders states that grinding is not possible on this model
- The machining range of 310 mm x 294 mm x 210 mm restricts the machine to small moulds, electrodes and parts
- The feed range ends at 42,000 mm/min, against 60,000 mm/min on the larger RXP801
Best For
Frequently Asked Questions
01
Two standard spindles are listed: 50,000 rpm with an HSK E25 interface or 40,000 rpm with HSK E32. Maximum tool diameter is 6 mm for HSK E25 and 10 mm for HSK E32. Other spindles are available on request, but HSK E32 is the largest interface offered on this model.
02
The machining range is 310 mm x 294 mm x 210 mm (12.2 x 11.6 x 8.3 in) and the table is 450 mm x 300 mm. Workpiece weight is limited to 100 kg (220 lb), and the maximum distance between spindle nose and T-slot table is 325 mm (12.8 in).
03
The RXP400 is the 3-axis version with a 450 mm x 300 mm T-slot table and a 100 kg workpiece limit. The RXP400DS adds a rotary-swivel unit with a 199 mm table and takes workpieces up to 15 kg. Both share the same machining range and the same spindle choice.
04
No. Röders lists grinding as not possible on this model. The machine is built around small tools at high spindle speed: the largest interface is HSK E32 and the largest tool diameter is 10 mm.
05
The standard linear changer has 18 places. Chain changers with 40, 70 or more places are optional and can be loaded while the machine is cutting. An integrated measuring laser checks the tools.
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