You Ji YV550
Image: image.youji.com, You Ji
Key Specifications
Max Spindle
Spindle Power
chuck size
max swing diameter
max turning diameter
max turning height
How much does the You Ji YV550 cost?
Price estimate
We do not have a price for the You Ji YV550 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
An 18 in (457 mm) chuck defines the You Ji YV550. This vertical turning lathe turns Ø650 mm (25.6 in) by 500 mm (19.7 in) high, swings Ø800 mm (31.5 in) and carries 1,200 kg (2,646 lb) on the spindle.
Its closest relative is the YV500, and the two share more than they differ on: turning height, table load, the 18.5/22 kW (24.8/29.5 hp) motor and the 50-2,000 rpm speed range are identical. The YV550 adds turning diameter and chuck size. It pays for that in floor area: 3,720 x 2,330 mm (146.5 x 91.7 in) against the 3,250 x 1,900 mm (128.0 x 74.8 in) of the YV500, while the height is almost the same at 3,395 mm (133.7 in).
One tooling build drops out at this size. The vertical power turret (C) in You Ji's key ends at the 500, so driven tools on a YV550 mean either the horizontal VDI power turret (E+C) or the tool changer with C-axis function (ATC+C). The plain vertical turret (A), horizontal turret (E) and ATC builds remain.
Use the figures this way: if the largest part is a wheel hub, flywheel or bearing housing just over the YV500's limit, the YV550 holds it with jaw clearance to spare, and nothing about the spindle is weaker than on the smaller machine. If the parts are heavier than they are wide, the YV600 lifts the load to 1,800 kg (3,968 lb).
Full Specifications
| Parameter | Value |
|---|---|
| Chuck Size | 18 in (457 mm) |
| Max Swing Diameter | Ø800 mm (31.5 in) |
| Max Turning Diameter | Ø650 mm (25.6 in) |
| Max Turning Height | 500 mm (19.7 in) |
| Max Table Load | 1,200 kg (2,646 lb) |
| Spindle Motor Power | 18.5/22 kW (24.8/29.5 hp) |
| Max Spindle Speed | 50-2,000 rpm |
| Floor Space | 3,720 x 2,330 mm (146.5 x 91.7 in) |
| Machine Height | 3,395 mm (133.7 in) |
Specifications sourced from image.youji.com — verified 2026-10-04
Strengths & Limitations
Strengths
- 18 in (457 mm) chuck and Ø650 mm (25.6 in) turning diameter with the spindle of the YV500
- Ø800 mm (31.5 in) swing gives clearance for long jaws and clamps
- 1,200 kg (2,646 lb) maximum loading weight
- Turret (A, E, E+C) and tool changer (ATC, ATC+C) builds are both listed for this size
Limitations
- Floor dimension grows to 3,720 x 2,330 mm (146.5 x 91.7 in), well beyond the YV500, for a modest gain in diameter
- No vertical power turret (C) build: the maker's key ends it at the 500
- Turning height stays at 500 mm (19.7 in), no gain over the YV500
- Speed range of 50-2,000 rpm is modest for small bores
Best For
Frequently Asked Questions
01
Chuck and diameter. The YV550 has an 18 in (457 mm) chuck, Ø650 mm (25.6 in) turning diameter and Ø800 mm (31.5 in) swing. The YV500 has a 15 in (381 mm) chuck, Ø550 mm (21.7 in) and Ø750 mm (29.5 in). Turning height, load, motor and speed range are the same on both.
02
The maker's key lists two builds with driven tools for this size: E+C, a horizontal VDI power turret, and ATC+C, an automatic tool changer with C-axis function. The catalogue table does not give the live tool speed or power, so those figures have to be requested.
03
Maximum loading weight is 1,200 kg (2,646 lb). On a vertical lathe that figure covers everything on the spindle: the 18 in (457 mm) chuck's top tooling, the fixture and the workpiece. The YV600 raises it to 1,800 kg (3,968 lb).
04
The floor dimension in the catalogue is 3,720 x 2,330 mm (146.5 x 91.7 in), with a machine height of 3,395 mm (133.7 in). Chip conveyor discharge and service access come on top of that and are not in the table.
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