ROMI C 510
Key Specifications
Max Spindle
Spindle Power
centers height
distance between centers
swing over bed
swing over cross slide
How much does the ROMI C 510 cost?
Price estimate
We do not have a price for the ROMI C 510 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
Between centers the ROMI C 510 takes 1.5 m (59 in), and over the bed it swings 520 mm (20 in). That puts this flat-bed CNC lathe one step above the smallest C Series machine, with a 15 hp / 11 kW main motor and noticeably more torque than its size suggests.
Torque is the figure to look at. The A2-6” headstock gives 320 Nm (236 lb-ft) and runs from 3 to 3,000 rpm through a 65 mm (2.6 in) spindle hole. Choose the A2-8” headstock and the hole grows to 80 mm (3.1 in), torque rises to 430 Nm (317 lb-ft) and top speed falls to 2,200 rpm. Both are direct drive by belt, so there is no gear change to plan around.
The C 510 is also the one model in the table with a WTO driven tool holder. It is a VDI-50 unit with ER-40 collets for Ø 4 to Ø 26 mm tools, axial and radial, running from 1 to 1,500 rpm. That is enough for a keyway, a cross hole or a flat on a shaft without sending it to a mill. For plain turning there is an optional 8-station horizontal automatic turret, a rear tool holder and a 3-holder quick change post.
Capacity over the cross slide is 255 mm (10 in). X travel is 280 mm (11 in), Z travel 1,555 mm (61 in), and rapids are 10 m/min (394 in/min) on both. The tailstock can be ordered with drag positioning through the table, which saves the operator pushing it along a 1.5 m bed, and with a pneumatic or hydraulic quill. The machine weighs about 3,750 kg (8,200 lbs) and is controlled by a Siemens Sinumerik 828D.
Full Specifications
| Parameter | Value |
|---|---|
| Centers Height | 260 mm (10.2 in) |
| Distance Between Centers | 1.5 m (59 in) |
| Swing Over Bed | 520 mm (20 in) |
| Swing Over Cross Slide | 255 mm (10 in) |
| Swing Over Saddle Wings | 450 mm (17.7 in) |
| X Axis Travel | 280 mm (11 in) |
| Z Axis Travel | 1,555 mm (61 in) |
| Bed Width | 340 mm (13.4 in) |
| Bed Height | 336 mm (13.2 in) |
| Spindle Nose | ASA A2-6” or A2-8” |
| Spindle Bore | 65 mm (2.6 in) with A2-6”; 80 mm (3.1 in) with A2-8” |
| Transmission System | Direct drive |
| Max Spindle Speed | 3 to 3,000 rpm with A2-6”; 2 to 2,200 rpm with A2-8” |
| Spindle Torque | 320 Nm (236 lb-ft) with the A2-6” headstock; 430 Nm (317 lb-ft) with the A2-8” headstock (S6 - 40% rating) |
| Rapid Traverse Z | 10 m/min (394 in/min) |
| Rapid Traverse X | 10 m/min (394 in/min) |
| Tailstock Body Positioning | Manual (std) / Drag through the table (opt) |
| Tailstock Quill Drive | Manual (std) / Pneumatic or Hydraulic (opt) |
| Tailstock Quill Stroke | 130 mm (5.1 in) |
| Tailstock Quill Diameter | 80 mm (3.1 in) |
| Tailstock Quill Taper | CM 4 |
| Spindle Motor Power | 15 hp / 11 kW (S6 - 40% rating) |
| Power Requirement | 20 kVA |
| Floor Space | 3.75 x 1.68 m (148 x 66 in) without chip conveyor |
| Machine Weight | 3,750 kg (8,200 lbs) approx. net |
| Quick Change Tool Holder | Optional, 3 holders, 25 x 25 mm (0.98 x 0.98 in) square, Ø 25 mm (0.98 in) round |
| Rear Tool Holder | Optional, 25 x 25 mm (0.98 x 0.98 in) square, Ø 32 mm (1.26 in) round |
| Driven Tool Holder | Optional WTO tool holder, VDI-50 (DIN 69880-50), 32 x 32 mm (1.26 x 1.26 in) square and Ø 40 mm (1.57 in) round tools |
| Driven Tool Collet | ER-40 (Ø 4 to Ø 26 mm), axial and radial holders |
| Driven Tool Speed | 1 to 1,500 rpm (optional WTO tool holder) |
| Turret Stations | 8 (optional horizontal automatic turret, Romi tool holder fixing) |
| Turret Tool Section | 25 x 25 mm (0.98 x 0.98 in) |
| Turret Boring Bar Diameter | Ø 32 mm (1.26 in) |
| CNC Control | Siemens Sinumerik 828D |
Specifications sourced from romi.com — verified 2026-10-04
Strengths & Limitations
Strengths
- 430 Nm (317 lb-ft) from the A2-8” headstock on a 15 hp / 11 kW motor
- Optional WTO driven tool holder with ER-40 collets, 1 to 1,500 rpm, for milled and drilled features
- Spindle hole of 80 mm (3.1 in) with the A2-8” nose
- Drag positioning of the tailstock through the table is available
- Rapid traverse of 10 m/min (394 in/min) in X and Z
Limitations
- Driven tools turn at 1,500 rpm at most, slow for small drills and end mills
- A single bed length: 1.5 m (59 in) between centers
- The A2-8” headstock is limited to 2 to 2,200 rpm
- Swing over the cross slide is 255 mm (10 in), about half the swing over the bed
Best For
Frequently Asked Questions
01
With the optional WTO tool holder, yes. It is a VDI-50 (DIN 69880-50) holder with axial and radial driven units taking ER-40 collets for Ø 4 to Ø 26 mm tools. The driven tool speed range is 1 to 1,500 rpm.
02
An A2-6” headstock with a 65 mm (2.6 in) hole, 3 to 3,000 rpm and 320 Nm (236 lb-ft), or an A2-8” headstock with an 80 mm (3.1 in) hole, 2 to 2,200 rpm and 430 Nm (317 lb-ft). The main motor is 15 hp / 11 kW (S6 - 40% rating) in both cases.
03
Distance between centers is 1.5 m (59 in). Swing over the bed is 520 mm (20 in), over the saddle wings 450 mm (17.7 in) and over the cross slide 255 mm (10 in). Carriage travel is 1,555 mm (61 in).
04
The C 510 is longer and stronger. It has 1.5 m (59 in) between centers where the C 420 has 1.0 m (39 in), and its motor is 15 hp / 11 kW. Both rapid at 10 m/min (394 in/min) and both need 20 kVA.
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