Macro-SK Precision Grinding Center is specifically designed for machining stator inner cavities. It sets a new standard for efficiency and precision in stator inner cavity machining. The Macro-SK can machine various stators (e.g., Gerotor/Geroller) and is available with two grinding arms. During grinding, two spindles descend vertically into a stack of stators secured in the fixture. Proven in practice, vertical grinding offers significant advantages over other machining principles for such applications. Coolant is directly injected into the grinding zone, enabling higher grinding feed rates. Grinding time and total processing time are significantly reduced due to the higher feed rate. The fixture can hold workpieces up to 100 mm (3.937") in height, allowing simultaneous machining of multiple stators (quantity depends on workpiece thickness).Its compact design saves space and reduces floor area, lowering infrastructure costs.The newly developed acoustic emission monitoring system ensures precise, efficient wheel dressing and is also used for cutting control to monitor the grinding process. An optional RFID reader can be installed; the RFID chip is embedded in the corresponding fixture to store data such as CNC program numbers and technical parameters. This ensures the machine automatically executes the correct machining process after fixture loading.

Compact structure design
The equipment width is only 1.5 m (59.055"), occupying a small space.
Vertical grinding technology
Separate grinding arms are used for rough grinding and fine grinding respectively.
Different specifications of CBN fine grinding wheels
Vertical processing, due to the effect of gravity, ensures accurate lubricating oil entry into the grinding area.
All the technical advantages of the equipment mentioned above guarantee high cutting rate and reduced processing time.
Clamping system and auxiliary feeding device
Simultaneous loading and unloading during processing significantly reduces processing time.
The clamping system can ensure the repeat positioning accuracy of the clamped workpiece, while the humanized feeding device can significantly reduce the labor intensity of the operator.
Quick clamping change, only 30 seconds.
Software Features
CNC Technology: The latest Siemens 840D system, multi-channel. Capable of 5-axis interpolation control.
All axes are equipped with high-precision linear guides, ball screws, and digital drives.
Dressing system with solid wave sensors. Ensures economical and precise grinding wheel dressing.
Software advantages
Simple operation, ideal choice for complex grinding processing
Convenient to use, suitable for different grinding processing
Collision monitoring, preliminary detection of workpieces and dressing, increasing production safety and reducing operating costs
Tailor-made according to customer requirements