HKB-21500A / HKB-21500B
Dual-Blade Arc-Slab Edge-Trimming Machine
Trim, bevel & finish circular slabs 10–20× faster than hand work
1. Machine Overview
The HKB-21500 series trims edges of circular stone slabs (arc plates) up to 1.5 m long × 1.5 m wide with 0–60° variable bevel.
Choose Model A for maximum power or Model B for a lighter footprint—both deliver 10–20× manual speed and column-ready accuracy in one automatic pass.
2. Quick Specifications
| Parameter | Unit | HKB-21500A | HKB-21500B |
| Max processing length | mm | 1500 | 1500 |
| Max processing width | mm | 1500 | 1500 |
| Cutting angle | ° | 0~60° | 0~60° |
| Gross power | kw | 24.5 | 16.5 |
| Outline dimension |
| 4500×3800×2100 | 4500×3800×1800 |
| Gross weight | kg | ≈3800 | ≈3500 |
| Water consumption | m³/h | 4 | 4 |





3. Key Equipment Features
- Arc-Slab Worktable – self-centering rollers support curved pieces without movement
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Wet-Cut System – recycles 0.4–4 m³/h water, keeps shop dust-free
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Gantry Frame – 3.8 t (A) / 3.5 t (B) steel bridge absorbs vibration for mirror-flat edges
4. Model Comparison
Same 1 500 × 1 500 mm working envelope and 0–60° cutting angle for both.
5. Typical Applications
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Circular column slabs – architectural façades, hotel lobbies
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Arc kerbstones – curved road edges
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Tombstone radials – curved headstone borders
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Decorative arc tiles – plaza & garden edges
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Countertop curved ends – bar-top returns
6. Workflow (1 Operator)
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Place arc slab on roller table
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Select program (length, angle, passes)
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Press START – blades advance automatically
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Unload finished piece – ready for column assembly
7. MOQ
| Model | MOQ | Lead Time |
| HKB-21500A | 1 set | 15 days |
| HKB-21500B | 1 set | 15 days |
Price includes machine, standard diamond blades, water pump, export packing, sea freight to nearest port.
8. Customer Success
“Switched from hand routers to HKB-21500B. One operator now finishes 300 arc pieces per day—15× faster, virtually zero chipping.”
— European Monument Supplier
“HKB-21500A handles 40 mm granite arcs without stalling. Power reserve is excellent for hard stones.”
— North American Curved-Kerb Producer
Contact & RFQ