You Ji VTL4000ATC
Key Specifications
Max Spindle
Spindle Power
table diameter
max swing diameter
max turning diameter
max turning height
How much does the You Ji VTL4000ATC cost?
Price estimate
We do not have a price for the You Ji VTL4000ATC 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
100 kW (134.1 hp) is the spindle motor rating of the You Ji VTL4000ATC, the first VTL vertical turning lathe with a three-figure motor rating. The table is Ø4,000 mm (157.5 in), the turning diameter Ø4,300 mm (169.3 in) and the swing Ø4,600 mm (181.1 in).
Loading weight rises with the motor, to 30,000 kg (66,138 lb). Table speed is 1-60 rpm, half the top speed of the VTL3500ATC, which keeps rim speed in a workable band at more than four metres of diameter. Turning height is 1,600 mm (63.0 in); note that this is a little less than the 1,700 mm (66.9 in) of the VTL3000ATC and VTL3500ATC.
What kind of shop buys one? Makers of wind-turbine hubs and bearing seats, hydro and steam turbine components, ring-rolled flanges and large pump casings. Those parts combine diameter with long, heavy roughing passes, and a 100 kW drive shortens them.
The ram takes BT-50/BT-60 tools from an automatic changer. You Ji also lists a double ram build, a C-axis build and raised columns for the series. The catalogue floor dimension is 12,500 x 8,500 mm (492.1 x 334.6 in) at 7,400 mm (291.3 in) height. The VTS4000ATC is the fixed cross-rail alternative with the same motor and load and 1,000 mm (39.4 in) of turning height; the VTH4000ATC doubles the load to 60,000 kg (132,275 lb).
Full Specifications
| Parameter | Value |
|---|---|
| Table Diameter | Ø4,000 mm (157.5 in) |
| Max Swing Diameter | Ø4,600 mm (181.1 in) |
| Max Turning Diameter | Ø4,300 mm (169.3 in) |
| Max Turning Height | 1,600 mm (63.0 in) |
| Max Table Load | 30,000 kg (66,138 lb) |
| Spindle Motor Power | 100 kW (134.1 hp) |
| Tool Shank | BT-50/BT-60 |
| Max Spindle Speed | 1-60 rpm |
| Floor Space | 12,500 x 8,500 mm (492.1 x 334.6 in) |
| Machine Height | 7,400 mm (291.3 in) |
Specifications sourced from image.youji.com — verified 2026-10-04
Strengths & Limitations
Strengths
- 100 kW (134.1 hp) spindle motor
- 30,000 kg (66,138 lb) loading weight on a Ø4,000 mm (157.5 in) table
- Ø4,300 mm (169.3 in) turning diameter within a Ø4,600 mm (181.1 in) swing
- Same 12,500 x 8,500 mm (492.1 x 334.6 in) floor dimension as the smaller VTL3500ATC
Limitations
- Turning height of 1,600 mm (63.0 in) is below the 1,700 mm (66.9 in) of the VTL3500ATC
- Table speed is limited to 1-60 rpm
- No pallet changer at this size
- Loading weight is half the 60,000 kg (132,275 lb) of the VTH4000ATC
Best For
Frequently Asked Questions
01
The spindle motor is listed as 100 kW (134.1 hp), with a table speed range of 1-60 rpm. The VTL3500ATC below it has a 60/75 kW (80.5/100.6 hp) motor and runs 1-120 rpm.
02
Table Ø4,000 mm (157.5 in), maximum swing Ø4,600 mm (181.1 in), maximum turning diameter Ø4,300 mm (169.3 in), maximum turning height 1,600 mm (63.0 in), maximum loading weight 30,000 kg (66,138 lb).
03
Three share the Ø4,000 mm (157.5 in) table. The VTL4000ATC gives 1,600 mm (63.0 in) of height and 30,000 kg (66,138 lb). The VTS4000ATC has a fixed cross-rail and 1,000 mm (39.4 in) of height at the same load. The VTH4000ATC has a hydrostatic table bearing and carries 60,000 kg (132,275 lb).
04
The tool shank row reads BT-50/BT-60 and the machine has an automatic tool changer. ATC+C adds a C-axis function. Magazine capacity is not stated in the catalogue table.
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