The Cylindrical Grinder HG 204 – a Grinding System that Meets High-Quality Requirements
The HG 204 is a cylindrical grinder for the external and internal grinding of medium to large component batches. The HG 204 cylindrical grinder accommodates shafts with a nominal grinding length of up to 400 mm (16 in). The modular design of the cylindrical grinder allows for a number of different machine specifications to perfectly meet individual machining requirements:
- Corundum or CBN grinding wheels
- B-axis with two spindles for external grinding wheels with a max diameter of 500 mm (20 in)
- B-axis with a single spindle for external grinding wheels with a max diameter of 500 mm (20 in), plus two internal grinding spindles
- B-axis with three spindles for external grinding wheels with a max diameter of 400 mm (16 in)
- Work headstock with motor spindle, or work headstock with belt-driven spindle
- Slide-mounted tailstock
- In-process measuring attachment
- Dressing attachment for CBN and corundum grinding wheels
- Touch-recognition for grinding and dressing
- Automatic balancing unit
- Workpiece driver
- Various sizes of chucks and steadies
- Automated loading hatch for linkup with an automatic loading and unloading device
Technical Data
| Workpiece dia., max. | mm in | 200 8 |
| Workpiece length, max. | mm in | 650 25.5 |
| X-axis travel | mm in | 360 14 |
| Z-axis travel | mm in | 1,000 39.5 |
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Advantages
- A high-powered wheel drive shortens machining times
- A contact and crash recognition and wheel balancing system monitors the grinding process
- An in-process gauging control checks O/Ds and the longitudinal position on shoulders
- Operator and setter menus simplify handling
- High-precision, sturdy linear roller guiderails in all axes guarantee the longevity of the machine
- Absolute measuring systems (linear glass scales) in all axes ensure highest machining accuracy
- An NC tailstock with large stroke makes for easy resetting
- Short idle times lead to high productivity levels
- An operator-friendly workpiece error correction system automatically rectifies dimensional errors
- Large doors give optimal access, reducing the distance between operator and workpiece
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