7-Axis CNC Robotic Stone Carving Machine

7-Axis CNC Robotic Stone Carving Machine for Marble & Granite | HLRB-7A3D Industrial Robotic System | KUKA + ENCY Digital Machining

Complex stone carving is rapidly shifting from traditional high-skill manual craftsmanship and limited 3/5-axis CNC processing to modern digital multi-axis robotic production. Conventional stone CNC equipment requires repeated workpiece repositioning and heavy manual intervention when handling complex curved surfaces, undercuts and irregular geometries, resulting in low efficiency and unstable finished quality.

The Stonex HLRB-7A3D 7-Axis CNC Robotic Stone Carving Machine is an integrated industrial machining solution built for high-value stone manufacturing. It combines genuine KUKA industrial robot platform, professional ENCY CAD/CAM/OLP offline programming software, 15kW high-speed spindle and 1000mm continuous rotary table, converting digital 3D designs into high-precision marble, granite and architectural stone products. It is the ideal upgraded alternative for stone factories looking to reduce manual dependence and expand complex 3D processing capabilities.

Different from ordinary 3-axis stone CNC machines with fixed tool angles and single movement freedom, the HLRB-7A3D 7-axis robotic system delivers multi-directional tool orientation and full flexible movement. It enables cutting tools to approach complex stone surfaces from arbitrary angles, machining intricate geometries that are impossible or inefficient for traditional CNC equipment.

Equipped with a 7-axis robotic arm and 1000mm diameter continuous rotary table, the machine builds a full-dimensional flexible machining environment for sculptures, reliefs, monuments and irregular architectural stone workpieces. It features a maximum robotic arm reach of 2700mm and an effective processing area of 1200×2300mm, covering most industrial and custom stone processing demands.
 

The entire HLRB-7A3D system is developed based on a mature KUKA industrial robot platform, not a simple combination of ordinary robotic arm and spindle. It integrates a complete set of industrial stone machining modules to achieve systematic and stable production:

• Full 7-axis synchronous robotic movement for dead-angle-free machining
• Professional stone cutting & milling spindle system
• 360° continuous rotary worktable
• Independent ENCY CAD/CAM/OLP offline programming system
• Full-process robot simulation & collision detection
• Dedicated stone processing tool library
• Optional automatic tool changing system

With high-protection IP65 configuration, the robot perfectly adapts to harsh stone workshop environments with dust, water splash and debris, ensuring long-term stable heavy-load operation.

Hardware determines machining precision, while professional software determines production efficiency. The HLRB-7A3D adopts exclusive ENCY CAD/CAM/OLP stone robot system, realizing full digital closed-loop production from design to finished product:

3D Model Import → Intelligent Toolpath Generation → Robot Motion Simulation → Offline Programming Verification → Formal Stone Machining

This pre-simulation processing mode eliminates trial production waste and collision risks, perfectly useful for companies working with:

• STL models
• 3D sculpture files
• CAD designs
• Custom architectural elements
• Digitized existing objects
• Repetitive sculpture production
   

Fitted with a 15kW industrial high-speed spindle with a maximum speed of 18500rpm, the machine supports all full-process stone processing operations by matching different professional tools:

• Rough stone removal & blank shaping
• 3D full-stereo carving & fine detail engraving
• Precision drilling & profiling
• Surface finishing & polishing

It stably handles high-hardness granite and delicate marble processing, balancing industrial production efficiency and high-end finished surface quality.

The standard 1000mm diameter infinite rotary table turns traditional repeated manual workpiece positioning into digital automatic linkage machining. It is specially suitable for cylindrical stone components, statues, multi-sided ornaments and complex curved workpieces, greatly improving one-time forming rate and machining consistency.

For mass production-oriented enterprises, the optional ATC tool magazine realizes automatic tool switching throughout the whole process: Roughing → Fine Carving → Drilling → Engraving → Polishing.
It minimizes manual operator intervention, supports 24-hour unmanned continuous production and significantly improves batch production capacity.
 

Supports marble, granite, sandstone, limestone and engineered stone, widely used for architectural stone components, industrial stone parts, custom monuments and complex decorative stoneworks.

The HLRB-7A3D is particularly relevant to:

• Stone sculpture manufacturers
• Marble and granite processors
• Monument manufacturers
• Religious statue manufacturers
• Architectural stone companies
• Stone restoration companies
• CNC stone factories
• Custom stone manufacturers
• Professional sculpture workshops

It is especially valuable for companies that already have conventional stone-processing capabilities but want to add complex 3D robotic carving as a new production capability.
 

The value of a robotic stone carving machine is not simply its number of axes. It is the ability to connect digital design, robotic motion and physical stone production into one workflow.
With the HLRB-7A3D, a manufacturer can move from:
Digital Design → ENCY Programming → Robotic Machining → Finished Stone Product
For businesses facing skilled-labor shortages, complex geometries or increasing demand for customized stone products, this can provide a practical path toward more digital and repeatable stone production.
Looking for a 7-axis CNC robotic stone carving machine for marble or granite?
Send us your 3D model, stone type and target product. Our engineers can recommend the appropriate tooling, machining configuration and automation options for your application.
 

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