Campro NU 255C
Image: camprocnc.com, Campro
Key Specifications
Max Spindle
Tool Capacity
Table Size
Spindle Power
x axis travel
y axis travel
How much does the Campro NU 255C cost?
Price estimate
We do not have a price for the Campro NU 255C 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
With a Ø255 mm (Ø10 in) table, the Campro NU 255C sits one step above the entry model in the NU series of trunnion-type 5-axis machining centers. X travel is 400 mm (15.7 in), Y is 520 mm (20.4 in) and Z is 450 mm (17.7 in). The A axis swivels +30°~-120° and the C axis rotates 360°.
Compared with the NU 170C, the X travel is the same but almost everything that affects the size of job is larger. Table load doubles to 100 / 70 kg (220 / 154 lb) (V / H), Campro's stated maximum workpiece grows to Ø320x 375 mm, and the spindle motor goes from 7.5 / 11 kW (15 HP) on the NU 170C to 11 / 15 kW (20 HP). The spindle itself is the same class: BBT-40 at 10,000 rpm.
The rotary table is the slower part of the machine. A / C rapid feedrate is 22.2 / 33.3 rpm, so programs that index constantly will spend visible time turning the part; linear rapids are 30 m/min on X, Y and Z. Campro describes the A/C axes as double arm supported and the linear axes as running on heavy duty roller type linear guideways.
Tooling capacity is 24 tools as standard with 30 as the option. A tool may be Ø80 mm (Ø3.1 in), or Ø150 mm (Ø5.9 in) beside empty pockets, up to 250 mm (9.8 in) long and 7 kg (15 lb). The machine weighs 5,600 kg (12,345 lb) on a 2,950 × 2,260 mm (116 in x 88 in) floor plan and needs 30 kVA.
Full Specifications
| Parameter | Value |
|---|---|
| X Axis Travel | 400 mm (15.7 in) |
| Y Axis Travel | 520 mm (20.4 in) |
| Z Axis Travel | 450 mm (17.7 in) |
| A Axis Range | +30°~-120° |
| C Axis Range | 360° |
| Distance Spindle Nose to Table | 40~490 mm (1.5 in ~ 19.2 in) |
| Table Size | Ø255 mm (Ø10 in) |
| Max Table Load | 100 / 70 kg (220 / 154 lb) (V / H) |
| Spindle Motor Power | 11 / 15 kW (20 HP) |
| Max Spindle Speed | 10,000 rpm |
| Tool Shank | BBT-40 |
| Tool Capacity | 24 (OPT: 30) |
| Max Tool Weight | 7 kg (15 lb) |
| Max Tool Length | 250 mm (9.8 in) |
| Max Tool Diameter (full magazine) | Ø80 mm (Ø3.1 in) |
| Max Tool Diameter (adjacent pockets empty) | Ø150 mm (Ø5.9 in) |
| Rapid Traverse Xyz | 30 / 30 / 30 m/min (1,181.1 / 1,181.1 / 1,181.1 in/min) |
| Rapid Traverse AC | 22.2 / 33.3 rpm |
| Floor Plan | 2,950 × 2,260 mm (116 in x 88 in) (W × D) |
| Machine Weight | 5,600 kg (12,345 lb) |
| Machine Height | 2,900 mm (114 in) |
| Power Requirement | 30 kVA |
Specifications sourced from camprocnc.com — verified 2026-10-04
Strengths & Limitations
Strengths
- Table load of 100 / 70 kg (220 / 154 lb) (V / H), twice the 50 / 30 kg of the NU 170C
- A axis range of +30°~-120° with a 360° C axis on a double arm supported trunnion
- 11 / 15 kW (20 HP) BBT-40 spindle at 10,000 rpm
- 24-tool magazine with a 30-tool option
- Y travel of 520 mm (20.4 in), longer than the 400 mm (15.7 in) X travel, which gives room to swing the trunnion
Limitations
- A / C rapid feedrate is 22.2 / 33.3 rpm; the NU 170C lists 200 / 300 rpm
- X travel stays at 400 mm (15.7 in), the same as the NU 170C
- Z travel of 450 mm (17.7 in) is shorter than the 480 mm (18.8 in) of the NU 170C
- Tools are limited to 7 kg (15 lb) and 250 mm (9.8 in) length
Best For
Frequently Asked Questions
01
The NU 255C has a Ø255 mm (Ø10 in) table, 100 / 70 kg (220 / 154 lb) load, 520 mm (20.4 in) of Y travel and an 11 / 15 kW (20 HP) spindle motor. The NU 170C has a Ø170 mm (Ø6.6 in) table, 50 / 30 kg (110 / 66 lb) load and 7.5 / 11 kW (15 HP), but its A / C axes rapid at 200 / 300 rpm against 22.2 / 33.3 rpm here.
02
The A axis swiveling range is +30°~-120° and the C axis rotary range is 360°. Campro describes the A/C axes as double arm supported. The distance from spindle nose to table surface is 40~490 mm (1.5 in ~ 19.2 in), which is the clearance to plan fixtures and tool lengths around.
03
24 tools as standard, with 30 listed as the option. Maximum tool diameter is Ø80 mm (Ø3.1 in), or Ø150 mm (Ø5.9 in) with adjacent pockets empty. Maximum tool length is 250 mm (9.8 in) and maximum tool weight is 7 kg (15 lb). The shank is BBT-40.
04
Machine weight is 5,600 kg (12,345 lb). The floor plan is 2,950 × 2,260 mm (116 in x 88 in) and the maximum machine height is 2,900 mm (114 in). Power capacity is listed as 30 kVA. The table does not state an air requirement or name a control.
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