Professional Concrete Grinder — Precision Surface Preparation for Flawless Results
Dust control is as critical as grinding efficiency for contractors specializing in industrial flooring renovation, decorative concrete polishing, and large-scale surface rehabilitation. Our heavy-duty concrete grinder with an integrated external dust collector combines unmatched grinding power with advanced airborne particle containment. It is engineered to meet OSHA silica compliance while delivering flawless finishes.
Product Advantages
✅ High-Capacity External Dust Collection System
- HEPA-Pro Grade Filtration: Partnered with industrial vacuum systems (sold separately) to capture 99.97% of silica dust (0.3μm+ particles), exceeding OSHA 29 CFR 1926.1153 standards.
- Dual-Port Extraction: Two 4-inch vacuum ports enable simultaneous dust suction from both planetary heads, ideal for large-area concrete floor grinding projects.
- Auto-Clean Function: Reduces filter clogging during extended operation, maintaining 95% airflow efficiency after 8+ hours.
✅ Variable-Speed Grinding for Multi-Surface Versatility
- 0-1,800 RPM Motor: Seamlessly switch between aggressive concrete removal (1,200-1,800 RPM) and fine polishing (200-600 RPM).
- Diamond Tool Compatibility: Works with 3-segment, turbo, and resin-bond diamonds for epoxy coating removal, terrazzo restoration, or polished concrete finishing.
✅ Ergonomic Design for Prolonged Operation
- Anti-Fatigue Handle System: Vibration levels <2.5 m/s² (ISO 28927-10 compliant) with 360° rotating handle for edge work.
- Quick-Height Adjustment: Hydraulic lift mechanism changes grinding head height in <10 seconds for transitions between concrete leveling and thin overlay removal.
✅ Industrial Durability for Harsh Environments
- Forged Steel Gearbox: Rated for 10,000+ hours under 15 kN downward pressure.
- Weatherproof Construction: IP54-rated components protect against moisture and concrete slurry splash in outdoor concrete grinding projects.
✅ Rapid Disc Change Technology
- Patented Lock-N-Go System: Swap diamond pads or grinding discs in <30 seconds without wrenches.
- Laser-Calibrated Depth Markers: Ensure precise material removal (0.5mm-3mm adjustments) for concrete floor flattening and coating adhesion prep.
✅ Eco-Certified Performance
- Energy-Star Motors: Reduce power consumption by 25% vs. standard models (3-phase 15 kW).
- Noise-Optimized Operation: <78 dB(A) at 1m distance, compliant with urban daytime noise ordinances.
Product Parameters
| Model number | GZD-350(inside) | GZD-350(outside) | GZD-400(inside) | GZD-400(outside) | GZD-600 | GZD-630/720 |
| Motor speed | 1450r/min | 1450r/min | 1430r/min | 1430r/min | ||
| Voltage | 380V/220V | 380V/220V | 380V | 380V | ||
| Motor power | 3/4kw | 4kw | 5.5kw | 7.5kw/11kw | ||
| Disk diameter | 350mm | 450mm | 600mm | 700mm | ||
| Size | 1105*540*900mm | 1200*420*930mm | 1105*540*900mm | 1200*420*930mm | 1450*700*1200mm | 1450*700*1400mm |
| Weight | 140kg | 140kg | 180kg | 260kg | ||
FAQ
PACKAGING.
1. Standard airworthy packaging for long distance transportation
2. Packed in cardboard boxes and wooden crates for transportation.
3.All products are carefully checked by QC before delivery.
Delivery time.
1.Regular products: 5-7 working days after receiving payment.
2. Customized products: 10-30 days according to detailed requirements.
Minimum order quantity.
1.We can provide customized service for minimum order quantity 1 set.
2.The price will be more favorable for larger quantity.
Payment Terms.
Various payment terms are optional, 100% payment security is guaranteed.