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ROCKSHARP CNC2-5+1

Straight-edge polishing machine

The Straight Edge Polishing Machine is designed for automatic processing of straight stone edges, integrating calibration, straight-edge grinding, chamfering and polishing in one continuous system. Equipped with multiple grinding and polishing spindles, it can process stone slabs from 10–80 mm thick and up to 3000 mm in length. With an adjustable moving speed of 0–6000 mm/min, pneumatic pressing cylinders and a heavy-duty machine structure, it provides a practical solution for stable and efficient edge finishing in stone fabrication workshops.

Product Advantages

Smart Features & High-Performance Design

Integrated Edge Processing

The integrated machine bed is engineered based on the pyramid mechanical principle, delivering exceptional stability during operation. This design not only guarantees cutting precision and vibration resistance but also significantly extends the overall service life of the equipment.

Multi-Spindle Grinding & Polishing

Equipped with 3 straight-edge spindles and multiple Ø125 mm polishing wheels, the machine performs progressive grinding and polishing along the stone edge. A dedicated calibrating spindle and chamfering spindle further expand its processing capability for more complete edge finishing.

Wide Processing Range

The machine supports stone thicknesses from 10 to 80 mm and a maximum processing length of 3000 mm, making it suitable for different slab sizes and straight-edge applications. The main body moving speed can be adjusted from 0 to 6000 mm/min according to processing requirements.

Stable Pneumatic Clamping

Four pneumatic pressing cylinders help secure the stone during processing, reducing movement while grinding and polishing. Combined with the 3500 kg heavy-duty machine structure, the system provides stable support for continuous edge processing and more consistent machining results.

Technical data

Engineered for precision cutting with stable performance, clean edges, and intelligent control.

Specification Unit Value Quantity
Calibrating Spindle Power hp/kW 5 / 3.7 1
Calibrating Wheel Diameter mm Ø150 1
Straight Edge Spindle Power hp/kW 5 / 3.7 3
Polishing Wheel Diameter mm Ø125 6
Polishing Wheel Diameter mm Ø125 1
Main Body Moving Speed mm/min 0–6000 —
Working Thickness mm 10–80 —
Max. Processing Length mm 3000 —
Total Power hp/kW 24 / 18 —
Machine Dimensions (L × W × H) mm 7000 × 1800 × 1550 —
Machine Weight kg 3500 —

Application areas

Ideal for marble, granite, quartz, sintered stone, and terrazzo processing, delivering precise cutting for countertops, inlays, sink cutouts, and custom stone designs.

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