The QHM Disc Cutter DC400 is a professional industrial-grade disc cutter designed for cutting metal, stone, concrete, and wood—making it a versatile tool for construction, manufacturing, and maintenance tasks. Powered by a 3200 W electric motor (230V~50Hz), it delivers a no-load speed of 4800 rpm, ensuring fast, clean cuts even through hard materials. Its standout feature is a maximum blade diameter of 400 mm (16 inches) and dual bore diameter options (25.4 mm or 50 mm), which let it adapt to different blade types for various applications. Compact yet durable (packing size: 6632.547.5 cm; net weight: 12 kg), the DC400 balances power and portability, making it suitable for on-site construction work or workshop use.
DC400
QHM
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Product Description
The 3200 W electric motor (230V~50Hz) generates strong torque, while the 4800 rpm no-load speed ensures efficient cutting—reducing cutting time for a 50 mm steel bar by 30% compared to standard cutters. The motor’s thermal protection feature prevents overheating during extended use.
With a maximum blade diameter of 400 mm (16 inches) and dual bore diameters (25.4 mm/50 mm), the DC400 works with blades for metal (HSS), stone (diamond), concrete (abrasive), and wood (carbide-tipped). This eliminates the need for multiple cutters, saving costs.
The DC400’s compact size (6632.547.5 cm) and 12 kg net weight make it easy to transport between job sites. It features a safety switch (prevents accidental startup) and a blade guard (reduces debris spray), meeting international safety standards (CE, GS).

Construction sites require cutting of metal (rebar), concrete (blocks), and wood (formwork). The DC400 cuts 16 mm rebar in 10 seconds and 100 mm concrete blocks in 15 seconds—speeding up foundation and framing work. Its portability lets workers use it on ladders or scaffolding (with proper safety gear).
Metal fabricators need precise cuts for steel plates, pipes, and bars. The DC400’s high-speed motor and HSS blade compatibility ensure clean, burr-free cuts—reducing the need for post-cut grinding. Its dual bore diameter lets workshops reuse existing blades (25.4 mm or 50 mm), lowering blade costs.
Maintenance teams use the DC400 to cut damaged parts (e.g., rusted metal pipes, cracked concrete slabs) during repairs. Its 230V power compatibility (standard household/industrial voltage) means it can be used in most locations, even remote sites with generator power.
Consultation & Application Matching: We ask about your target material (metal/stone/concrete), cut thickness, and use scenario (on-site/workshop) to recommend the right blades and confirm the DC400’s fit.
Customization: We offer add-ons like a blade storage case, anti-vibration gloves, or a higher-power motor (3500 W) for extra-hard materials, with a quote within 2 days.
Production & Quality Testing: Production takes 8–10 days, with tests for motor power, blade alignment, and safety switch functionality.
Delivery & Training: We deliver via express courier (with insurance for the cutter) and provide 30-minute online training on safe operation (e.g., blade installation, vibration control).
Warranty & Support: The DC400 comes with a 1-year motor warranty and 6-month blade warranty. We follow up 1 month after delivery to address any operational issues.
Blade Installation Guidance: We send video tutorials on mounting blades of different bore diameters and adjusting blade tension for safe cutting.
Motor Maintenance: Our team provides a maintenance schedule (e.g., cleaning the motor air filter every 20 hours, checking cable insulation monthly).
Spare Parts: We stock motors, blade guards, and handles in 5 global warehouses, ensuring delivery within 4 days.
Emergency Support: For issues like motor overheating or blade breakage, our technical team responds within 1 hour and can arrange on-site service for construction sites (within 72 hours).
Specification
Packing: 1 PC/carton box (6632.547.5 cm) — includes the cutter, a 400 mm diamond blade (for stone), and a user manual.
Handle: Ergonomic rubber handle — reduces vibration and fatigue during long use.
Cable Length: 2.5 meters — long enough for most on-site applications without extension cords.
Article No.: | DC400 |
Voltage/Frequency: | 230V~50Hz |
Rated Input Power: | 3200W |
No-load Speed: | 4800r/min |
Max. Blade Diameter: | 400mm/16“ |
Bore Diameter: | 25.4 or 50mm |
Packing: | 1PC/carton box |
Measurement: | 66*32.5*47.5cm |
G.W./N.W.: | 14.5/12KGS |