Dust Collection Solutions — OSHA Compliant & NFPA 652 for Industrial Facilities
Riches Hardware Co., Ltd — Factory-Direct Dust Collection Systems with 99.9% Filtration Efficiency and Explosion Protection for North American Facilities
Riches Hardware Co., Ltd (集业达机电科技(惠州)有限公司) is a China-based factory-direct manufacturer of UL891 switchboards and UL508A control panels for U.S. industrial equipment exporters. We specialize in OSHA compliant dust collection systems for woodworking, grain handling, chemical processing, and industrial manufacturing facilities.
OSHA compliant and NFPA 652 certified. Our dust collection systems are designed and manufactured to meet OSHA grain handling standards, NFPA 652 for combustible dust, and AMCA standards for air movement. Each system is factory-tested and ships with complete documentation.

Challenges in Industrial Dust Collection
Combustible Dust Hazards
Woodworking, grain handling, and chemical processing facilities generate combustible dust that can cause catastrophic explosions without proper collection systems.
OSHA Compliance Requirements
Facilities must comply with OSHA grain handling standards (29 CFR 1910.272), NFPA 652, and respiratory protection requirements to protect workers.
High Filtration Efficiency
Modern environmental regulations require filtration efficiency of 99.9% or higher for particulate matter down to sub-micron levels.
Variable Airflow Demands
Industrial processes with multiple pickup points require variable frequency drives to maintain proper capture velocities under varying load conditions.
Our Dust Collection Solutions
Explosion-Protected Systems
NFPA 652 compliant dust collection with explosion vents, suppression systems, and isolation valves for combustible dust applications.
High-Efficiency Filtration
Pulse-jet cartridge collectors with PTFE membrane filters achieving 99.9% efficiency at 0.5 microns for clean air discharge.
VFD-Controlled Fans
UL508A control panels with variable frequency drives for energy-efficient airflow control and reduced operating costs.
Remote Monitoring
IoT-enabled systems with differential pressure monitoring, filter condition alerts, and remote diagnostics via cellular connections.
Recommended Products
Pulse-Jet Cartridge Collectors
Baghouse Dust Collectors
Cyclone Pre-Separators
Explosion Vent Panels
Rotary Airlock Valves
UL508A VFD Control Panels
Ductwork & Fittings
Filter Replacement Cartridges
Compliance Standards
Frequently Asked Questions
Do your dust collection systems comply with OSHA grain handling standards?
Yes. All our dust collection systems are designed to meet OSHA grain handling standards (29 CFR 1910.272) and respiratory protection standards (29 CFR 1910.134). We also comply with NFPA 652 for combustible dust and AMCA standards for air movement. Our systems feature 99.9% filtration efficiency for particulate matter down to 0.5 microns.
Can you provide explosion-protected dust collection for combustible dust applications?
Yes. Our dust collection systems are designed for combustible dust applications in compliance with NFPA 652, NFPA 654 (chemical), and NFPA 664 (woodworking). We provide explosion vent panels, suppression systems, isolation valves, and deflagration-resistant construction. All electrical components in hazardous areas are rated per NEC Article 500 for the appropriate Class/Division.
What filtration efficiency can your dust collection systems achieve?
Our pulse-jet cartridge collectors with PTFE membrane filters achieve 99.9% filtration efficiency at 0.5 microns. For higher requirements, we offer HEPA filtration with 99.97% efficiency at 0.3 microns. Our systems comply with ISO 16890 and AMCA 210 standards for air filtration performance.
Can your systems handle multiple pickup points with varying airflow demands?
Yes. Our dust collection systems are designed with variable frequency drives (VFDs) in UL508A control panels to automatically adjust fan speed based on the number of active pickup points. This maintains proper capture velocities while reducing energy consumption by up to 40% compared to constant-speed systems.
Need Dust Collection Solutions?
Our engineering team can design custom OSHA-compliant dust collection systems for your facility. Share your dust characteristics, pickup point locations, and compliance requirements — we will provide a detailed proposal within 24 hours.
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