24-Head Auto Continuous Polisher Granite Marble Slab Polishing Line

24-Head Three-Section Stone Slab Polishing Machine

Customizable 8+10+6 Configuration | High-Speed Production & Flawless Mirror Finish

Hualong HLMJX-24/26 Three-Section Automatic Stone Slab Polishing Machine is a high-end integrated stone processing solution built to resolve the long-standing trade-off between production speed and mirror finish quality—the top two priorities for global high-end stone fabricators. This all-in-one automated production line combines a slab loading device, electric conveyor table, 24-head main polishing unit, cleaning & air blowing station, transfer frame and slab unloading device, creating a seamless, fully automatic workflow that transforms raw stone slabs into premium, mirror-finished products in one continuous process.

Unlike standard polishing machines that sacrifice surface quality for speed, our model is precision-engineered to deliver both: ultra-fast processing efficiency to boost output, and a flawless, consistent mirror gloss that meets the strictest international standards for architectural and decorative stone. It is the definitive core equipment for stone factories aiming to elevate product value, capture high-end markets, and maximize profitability.

Core Features & Premium Advantages

1. Customizable Three-Section Grinding Head System | Layered Precision for Perfect Mirror Gloss

This machine features a professional segmented grinding head design, with a standard 8+10+6 configuration, and fully supports flexible customization for alternative setups including 10+10+6, 8+8+6 or other tailored arrangements to match specific stone types, hardness and finish requirements. Each section is dedicated to a critical processing stage, working in tandem to refine the stone surface layer by layer and achieve a pristine mirror finish:

- Coarse Grinding Section (8/10 Heads): Quickly removes raw slab margins, levels uneven surfaces and calibrates thickness, creating a stable, uniform base for subsequent high-precision polishing;
- Fine Grinding Section (10/8 Heads): Thoroughly erases all coarse grinding scratches, refining the stone surface to an ultra-smooth texture with no fine lines, blemishes or uneven patches;
- Polishing Section (6 Heads): Specialized in high-gloss mirror finishing, delivering consistent, deep polishing to unlock the stone’s natural luster and form a crystal-clear, reflective mirror surface that exceeds industry quality standards.

With a maximum beam swing speed of 60 meters per minute, the machine increases grinding passes to accelerate production, while the precision-staged grinding ensures zero compromise on mirror finish quality. This dual advantage slashes production time and labor costs, while drastically enhancing the value of finished stone slabs for end customers.

2. Heavy-Duty Stable Structure | Ensures Uniform Flatness & Consistent Mirror Gloss

- Reinforced Three-Section Beams: Crafted via specialized steel arc welding and multi-step precision processes, the beams offer exceptional structural strength and balanced weight. Paired with a high-performance servo drive system, they achieve smooth, vibration-free high-speed reciprocating motion, guaranteeing even grinding pressure across the entire slab and eliminating uneven gloss caused by mechanical shake;
- Anti-Deformation Supporting Platform: Constructed with 450mm large anti-torsion I-beams and custom wear-resistant top plates, paired with a honeycomb-structured lower base. The platform is wear-proof, permanently deformation-free and ultra-stable, maintaining perfect slab flatness during processing—an essential foundation for a consistent, full-coverage mirror finish.

3. Intelligent Automatic Slab Detection | Full-Slab & Edge Uniform Mirror Finish

Equipped with an advanced automatic slab detection system, it integrates encoders and front-mounted proximity sensors to instantly detect the exact length and width of each slab, feeding real-time data to the intelligent control system for precise automatic grinding head lifting. Combined with pre-lowering and side-holding functions, the machine delivers comprehensive, even grinding for both the slab body and edges, ensuring every inch of the slab—including edges—achieves a flawless, uniform mirror gloss with no missed spots, dull areas or uneven polishing, drastically improving high-gloss finished product yield.

4. High-Precision Servo Drive System | Lock in Perfect Mirror Finish Consistency

Each beam is equipped with an independent high-performance servo motor, featuring the industry’s most advanced control circuit for pinpoint positioning and ultra-high operating accuracy. The servo system stabilizes grinding speed, pressure and beam swing, eliminating fluctuations that compromise surface quality, ensuring every slab processed has identical, perfect mirror finish—consistent batch production with no quality variations between pieces.

5. Versatile & Stable Grinding System | Compatible with All Stone Types

The machine adopts a scientific abrasive layout: 6 abrasives for coarse grinding, 8 for fine grinding, 9 for polishing, fully compatible with all standard abrasives on the market. Custom-made high-durability shock-absorbing pads resist deterioration and deformation, maintaining stable grinding performance for long-term continuous operation. This design delivers consistent, premium mirror finish for a full range of stone materials, including natural marble, granite, artificial stone, quartz stone and more, meeting diverse processing needs.

6. User-Centric & Low-Maintenance Design | Long-Lasting High-Quality Output

- 15-Inch HD Touch Screen HMI: Large, clear interface reduces operator visual fatigue, with intuitive, simple pages and detailed parameter instructions. Easy to adjust polishing settings for different stones to lock in the optimal mirror finish effect;
- Automatic Lubrication System: Spindle oiling ports extended to the top of the beam via copper pipes for hassle-free maintenance; all lubrication components are fully waterproof protected, with automatic timed oilers for beam lubrication, extending machinery lifespan and ensuring stable mirror finish production long-term;
- Sealed Climate-Controlled Electric Cabinet: Mounted in a closed air-conditioned compartment, with superior waterproof, dustproof and temperature control performance, protecting electronic components and ensuring uninterrupted, stable operation for consistent high-quality mirror finish;
- Premium Gas Circuit & Durable Side Beams: Equipped with AirTac pneumatic components for precise grinding head lifting positioning; side beams feature hardened wear-resistant rails, deepened oil grooves and stainless steel labyrinth seals for dust and water protection, ensuring long-lasting, reliable performance.

7. Remote Telematics Service | Real-Time Monitoring for Uninterrupted Production

Built-in internet remote communication function enables real-time equipment status monitoring, fast remote troubleshooting and efficient technical support. This minimizes production downtime, ensuring continuous output of mirror-finished slabs and maximizing production efficiency for stone fabrication businesses.

Technical Specifications

Elevate your stone processing with the perfect blend of high-speed output and flawless mirror finish!

Contact our expert sales team today.

24-Head Three-Section Stone Slab Polishing Machine

Customizable 8+10+6 Configuration | High-Speed Production & Flawless Mirror Finish

Hualong HLMJX-24/26 Three-Section Automatic Stone Slab Polishing Machine is a high-end integrated stone processing solution built to resolve the long-standing trade-off between production speed and mirror finish quality—the top two priorities for global high-end stone fabricators. This all-in-one automated production line combines a slab loading device, electric conveyor table, 24-head main polishing unit, cleaning & air blowing station, transfer frame and slab unloading device, creating a seamless, fully automatic workflow that transforms raw stone slabs into premium, mirror-finished products in one continuous process.
Unlike standard polishing machines that sacrifice surface quality for speed, our model is precision-engineered to deliver both: ultra-fast processing efficiency to boost output, and a flawless, consistent mirror gloss that meets the strictest international standards for architectural and decorative stone. It is the definitive core equipment for stone factories aiming to elevate product value, capture high-end markets, and maximize profitability.
Core Features & Premium Advantages
1. Customizable Three-Section Grinding Head System | Layered Precision for Perfect Mirror Gloss
This machine features a professional segmented grinding head design, with a standard 8+10+6 configuration, and fully supports flexible customization for alternative setups including 10+10+6, 8+8+6 or other tailored arrangements to match specific stone types, hardness and finish requirements. Each section is dedicated to a critical processing stage, working in tandem to refine the stone surface layer by layer and achieve a pristine mirror finish:
- Coarse Grinding Section (8/10 Heads): Quickly removes raw slab margins, levels uneven surfaces and calibrates thickness, creating a stable, uniform base for subsequent high-precision polishing;
- Fine Grinding Section (10/8 Heads): Thoroughly erases all coarse grinding scratches, refining the stone surface to an ultra-smooth texture with no fine lines, blemishes or uneven patches;
- Polishing Section (6 Heads): Specialized in high-gloss mirror finishing, delivering consistent, deep polishing to unlock the stone’s natural luster and form a crystal-clear, reflective mirror surface that exceeds industry quality standards.
With a maximum beam swing speed of 60 meters per minute, the machine increases grinding passes to accelerate production, while the precision-staged grinding ensures zero compromise on mirror finish quality. This dual advantage slashes production time and labor costs, while drastically enhancing the value of finished stone slabs for end customers.

2. Heavy-Duty Stable Structure | Ensures Uniform Flatness & Consistent Mirror Gloss
- Reinforced Three-Section Beams: Crafted via specialized steel arc welding and multi-step precision processes, the beams offer exceptional structural strength and balanced weight. Paired with a high-performance servo drive system, they achieve smooth, vibration-free high-speed reciprocating motion, guaranteeing even grinding pressure across the entire slab and eliminating uneven gloss caused by mechanical shake;
- Anti-Deformation Supporting Platform: Constructed with 450mm large anti-torsion I-beams and custom wear-resistant top plates, paired with a honeycomb-structured lower base. The platform is wear-proof, permanently deformation-free and ultra-stable, maintaining perfect slab flatness during processing—an essential foundation for a consistent, full-coverage mirror finish.
3. Intelligent Automatic Slab Detection | Full-Slab & Edge Uniform Mirror Finish
Equipped with an advanced automatic slab detection system, it integrates encoders and front-mounted proximity sensors to instantly detect the exact length and width of each slab, feeding real-time data to the intelligent control system for precise automatic grinding head lifting. Combined with pre-lowering and side-holding functions, the machine delivers comprehensive, even grinding for both the slab body and edges, ensuring every inch of the slab—including edges—achieves a flawless, uniform mirror gloss with no missed spots, dull areas or uneven polishing, drastically improving high-gloss finished product yield.
4. High-Precision Servo Drive System | Lock in Perfect Mirror Finish Consistency
Each beam is equipped with an independent high-performance servo motor, featuring the industry’s most advanced control circuit for pinpoint positioning and ultra-high operating accuracy. The servo system stabilizes grinding speed, pressure and beam swing, eliminating fluctuations that compromise surface quality, ensuring every slab processed has identical, perfect mirror finish—consistent batch production with no quality variations between pieces.
5. Versatile & Stable Grinding System | Compatible with All Stone Types
The machine adopts a scientific abrasive layout: 6 abrasives for coarse grinding, 8 for fine grinding, 9 for polishing, fully compatible with all standard abrasives on the market. Custom-made high-durability shock-absorbing pads resist deterioration and deformation, maintaining stable grinding performance for long-term continuous operation. This design delivers consistent, premium mirror finish for a full range of stone materials, including natural marble, granite, artificial stone, quartz stone and more, meeting diverse processing needs.
6. User-Centric & Low-Maintenance Design | Long-Lasting High-Quality Output
- 15-Inch HD Touch Screen HMI: Large, clear interface reduces operator visual fatigue, with intuitive, simple pages and detailed parameter instructions. Easy to adjust polishing settings for different stones to lock in the optimal mirror finish effect;
- Automatic Lubrication System: Spindle oiling ports extended to the top of the beam via copper pipes for hassle-free maintenance; all lubrication components are fully waterproof protected, with automatic timed oilers for beam lubrication, extending machinery lifespan and ensuring stable mirror finish production long-term;
- Sealed Climate-Controlled Electric Cabinet: Mounted in a closed air-conditioned compartment, with superior waterproof, dustproof and temperature control performance, protecting electronic components and ensuring uninterrupted, stable operation for consistent high-quality mirror finish;
- Premium Gas Circuit & Durable Side Beams: Equipped with AirTac pneumatic components for precise grinding head lifting positioning; side beams feature hardened wear-resistant rails, deepened oil grooves and stainless steel labyrinth seals for dust and water protection, ensuring long-lasting, reliable performance.
7. Remote Telematics Service | Real-Time Monitoring for Uninterrupted Production
Built-in internet remote communication function enables real-time equipment status monitoring, fast remote troubleshooting and efficient technical support. This minimizes production downtime, ensuring continuous output of mirror-finished slabs and maximizing production efficiency for stone fabrication businesses.
Technical Specifications

Elevate your stone processing with the perfect blend of high-speed output and flawless mirror finish!

Contact our expert sales team today.