You Ji YH
- Turning
- |CNC horizontal lathe

The structural strength of the machines and the performance they offer make the YH series extremely effective in the aerospace, automotive, transport, earthmoving, motorbike, marine, moulding, hydraulics and components sectors.
The load-bearing structure is designed and built with a one-piece block of meehanite cast iron, giving the machines exceptional rigidity.
The You Ji YH series is a range of CNC horizontal lathes designed for precision turning, structured around the YH15, YH20 and YH21 models, which cover different sizes and production capacities within the same construction architecture. Moving from the YH15 to the YH20 and YH21, the range allows the choice of machine to be adapted to specific machining needs, while maintaining the design consistency typical of the YH series and the build reliability that characterizes You Ji production. The horizontal structure, common to all three models, ensures stability and precision when turning components of different sizes, making the series a versatile solution for workshops that need multiple configurations of the same type of CNC lathe.
| Parameter | YH15 | YH21 | YH20 |
|---|---|---|---|
| Swing diameter | Ø250 mm | Ø560 mm | Ø560 mm |
| Turning diameter | Ø190 mm | Ø416 mm | Ø416 mm |
| Bar diameter | Ø42 mm | Ø52 mm | — |
| Turning length | 120 mm | 480 mm (catalog) [450 on website – official discrepancy] | 450 mm |
| Spindle power (continuous) | 7.5/11 kW | 9/11 kW | — |
| Spindle power (peak) | 7.5/11 kW | 9/11 kW | — |
| Spindle – taper / mount | A2-5 | A2-6 | — |
| Spindle – speed | 1-4000 rpm | 1-4000 rpm | 4000 rpm |
| Tool magazine – capacity | 8-st. | 10-st. | — |
| Rapid traverse | 18/30 m/min | — | — |
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