Granite Polishing Machine Line (Resin Grinding Disc)

ZDMJ-12D / ZDMJ-16D / ZDMJ-20D

The ZDMJ Series is a specialized continuous polishing line built exclusively for granite finishing, designed to solve the biggest pain points of stone factories: inconsistent gloss, low output, and high maintenance costs. Unlike general-purpose polishers, it uses resin grinding discs optimized for hard granite, paired with a fully automated workflow to deliver mirror-like slabs at scale-making it the go-to choice for factories targeting high-end architectural and countertop markets.

1. Resin Disc Technology: Unmatched Granite Gloss & Durability

• Resin-bonded grinding discs are engineered to cut through hard granite without overheating, producing a deep, reflective mirror finish that lasts longer than traditional abrasives.
• Each polishing head works in sequence to refine the surface step-by-step, eliminating scratches and unevenness-so every slab leaves the line with the same high-gloss standard, no exceptions.
• 200mm disc size ensures full coverage across the 1300mm slab width, leaving no blind spots or dull edges.

2. Continuous Flow Production: More Slabs, Less Labor

• In-line conveyor system moves slabs nonstop from loading to unloading, with no manual handling between stages-one operator can manage the entire line, cutting labor costs by 60% vs. batch polishing.
• 12/16/20 head configurations let you match output to demand: a ZDMJ-20D line can polish over 100+ slabs per shift, easily handling large export orders.
• Variable speed (0–4m/min) lets you slow down for extra-hard granite or speed up for softer varieties, balancing quality and throughput.

3. Smart Automation: Less Downtime, More Control

• HMI touchscreen control lets you save polishing recipes for different granite types-one click to recall settings, no guesswork, no trial-and-error.
• Automatic lubrication + plate shape monitoring proactively prevents wear and detects uneven slabs before they cause defects, reducing unplanned stops by 40%.
• Modular electrical design means quick access to components for repairs-no long waits for specialized technicians.

4. Built for 24/7 Factory Life: Rugged & Cost-Effective

• Heavy-duty steel frame (up to 17,000kg) absorbs vibration, so polishing stays precise even during overnight runs.
• Low water use (15–18m³/h) and efficient 7.5kW/head motors keep utility bills in check-critical for factories running multiple shifts.
• Enclosed housing contains dust and wastewater, making it easier to meet environmental regulations and keep your workshop clean.

1. Small/Startup Factories: ZDMJ-12D – Compact footprint, lower investment, perfect for testing high-gloss markets.
2. Mid-Size Factories: ZDMJ-16D – Balanced speed and capacity, ideal for steady countertop and cladding orders.
3. Large/Export-Focused Factories: ZDMJ-20D – Maximum output, designed for 24/7 production of premium granite slabs.

• Unique resin disc edge: Stands out in competitive markets as a "high-gloss specialist" for granite, attracting buyers who demand premium finishes.
• Export-ready design: Modular construction simplifies shipping and installation, with customizable voltage and control language for global buyers.
• Low total cost of ownership: Fewer breakdowns, longer tool life, and lower labor costs mean faster ROI than competing lines.
• Full-service support: On-site training, remote troubleshooting, and global spare parts keep your line running at peak performance.

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