±25° automatic head swivel
The left head performs grinding and the right head performs turning. Both the grinding B1 axis and turning B2 axis support automatic swiveling through ±25°.
PRODUCTS / YH SERIES
Turning meets grinding.
Purpose-built for butterfly valves.
Integrated turning and grinding for triple-offset, bidirectional metal-seated butterfly valves
Contour-following turning and grinding of internal and external conical surfaces on valve bodies, seats and sealing rings
01 / FIND YOUR MACHINE
Find your machining platform
Turning & Grinding CentersOMYHSK / Turning & Grinding Centers
YH180CM
Compatible butterfly valve sizes
- Fixed valve seat
- DN300–DN1000
- Movable valve seat
- DN300–DN1400
Max. turning diameterΦ1800mm
Max. workpiece height1600mm
Max. workpiece weight8t
Ground surface roughnessRa0.2- 0.4μm
Technical specifications
Specifications from brochure page 17
| Item / Model | YH180CM |
|---|---|
| Main machine specifications | |
| Max. turning diameter | Φ1800mm |
| Max. workpiece height | 1600mm |
| Max. workpiece weight | 8t |
| Worktable | |
| Worktable diameter | 1600mm |
| Worktable speed steps | Stepless |
| Worktable speed range | 1～250r/min |
| Max. worktable torque | 22KN•m |
| Main motor power | 75kW (direct drive) |
| Tool heads | |
| Max. tool-head cutting force | 20kN |
| Left/right tool-head ram vertical travel | 1000mm |
| Vertical tool-head rapid traverse (X axis) | 5000mm/min |
| Vertical tool-head rapid traverse (Z axis) | 8000mm/min |
| Left/right tool-head horizontal travel | 920mm |
| Tool-head feed steps (X/Z axes) | Stepless |
| Tool-head feed range (X/Z axes) | 0.1～500mm/min |
| Tool shank cross-section | 32×32mm |
| Ram cross-section | 220×220mm |
| Automatic tool-head swivel range | ±25° |
| Crossrail | |
| Crossrail travel | 1250mm |
| Crossrail height positions | 5 positions |
| Crossrail traverse speed | 440mm/min |
| Grinding spindle | |
| Grinding spindle power | 22KW |
| Grinding spindle speed steps | Stepless |
| Grinding spindle type | Mechanical / hydrodynamic-hydrostatic |
| Grinding spindle speed range | 1500-3000r/min |
| Max. grinding height | 1400mm |
| Max. grinding depth | 1000mm |
| Min. internal grinding diameter | Φ300mm |
| Ground surface roughness | Ra0.2- 0.4μm |
| Grinding spindle swivel control | Automatic |
| CNC system | |
| OMYHSK-SIEMENS | |
| Machine dimensions (L × W × H) | 8270×5940×5910mm |
| Approx. machine weight | 23t |
| Total electrical capacity | 115KW |
02 / ENGINEERING DETAILS
The technology behind integrated machining
From automatically swiveling heads to direct-drive tables
Designed for extended reciprocating contour-following machining
Durable contour-following rams
Both rams use highly durable materials and an integrated, in-house-developed contour-following slide structure for extended reciprocating turning and grinding.
DDM direct-drive torque table
Our proprietary patented DDM technology drives the worktable directly with a torque motor, delivering torque in the tens of thousands of N·m.
Metal-point wheel dresser
Standard across the series, enabling straight-line dressing of the grinding wheel end face and outer diameter.
03 / MACHINING APPLICATION
Contour-following turning & grinding
Ground surface roughness Ra 0.2–0.4 μm
Contour-following turning/grinding achieves 400% of conventional interrupted-cutting efficiency
GRINDING
Contour-following grinding
An ultra-precision grinding spindle performs contour-following grinding on internal and external conical workpiece surfaces.
TURNING
Contour-following turning
A conventional manual tool holder is standard. Capto quick-change holders and 8/12-position ATC tool magazines are optional.
04 / MACHINING FILM
See the machining process.
OMYHSK / Machining Film
Contour-following Turning & Grinding
Internal and external conical surfaces on valve bodies, seats and sealing rings
Machining Film showcase
LET'S TALK PRECISION