Mobile Cartridge Dust Collector for Welding Fume Extraction
Introduction:Welding fume and grinding dust are common pollutants in metal fabrication workshops, often generated at scattered, changing workstations. The mobile cartridge dust collector, also known as welding fume purifier, is a portable, energy-saving Dust Collector Filter designed for local smoke and dust capture. Equipped with flexible suction arm, spark arrester and pulse cleaning system, it can be moved freely to different welding stations. A matched Air compressor filter is required for automatic pulse back-blow models to supply clean compressed air. It delivers over 99% smoke removal efficiency, with purified air recyclable inside the workshop, widely used for arc welding, plasma cutting, polishing and grinding in automotive, shipbuilding, machinery and metallurgy industries.
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Product Introduction
The mobile cartridge dust collector, also named welding fume purifier, is a portable high-efficiency purification device developed for diverse industrial dust control demands. It is an energy-saving, eco-friendly and cost-effective Dust Collector Filter dedicated to local welding fume treatment. Users can select different flexible suction arms and exhaust fans to suit variable working spots, which makes the unit highly flexible and convenient for shifting production layouts. The mobile welding fume purifier runs smoothly with stable performance, simple operation and low long-term maintenance cost. For versions fitted with automatic pulse cleaning, an Air compressor filter must be installed on the compressed air pipeline to remove oil and moisture, protecting pulse valves and filter cartridges from contamination.
This equipment consists of a universal suction arm, high-temperature resistant flexible suction hose, suction hood with airflow damper, spark arrester, flame-retardant high-efficiency filter cartridge, pulse back-blow assembly, pulse solenoid valve, clean air chamber, activated carbon filter, ash drawer, flame-retardant sound insulation cotton, lockable caster wheels, fan, motor, electric control cabinet and main cabinet body. It adopts high-precision PTFE membrane filter media, and supports manual or automatic ash cleaning modes according to model selection. It can handle single-station independent dust collection or multi-station centralized smoke treatment, and customized structures are available upon special customer requirements.
Working Principle
Driven by the built-in fan, welding fume and dust are drawn into the equipment inlet through the suction hood and flexible suction arm. A spark arrester is installed at the air inlet to trap burning sparks and eliminate fire risks. The fume stream enters the purification chamber. Under gravity and upward airflow, large coarse dust particles drop directly to the bottom ash drawer. Fine smoke particles are captured on the outer surface of the filter cartridge. After filtration, clean air flows through the cartridge core into the clean air chamber. The air will go through further adsorption by the activated carbon filter, and finally discharges from the air outlet up to emission standards.
For automatic pulse cleaning models, timed compressed air pulses blast the cartridge surface to shake off accumulated dust cake. The separated dust falls into the pull-out ash drawer for easy disposal. The system keeps constant suction airflow and stable purification capacity during continuous operation. The control system is equipped with over-voltage and leakage protection to guarantee operational safety.
Main Technical Parameters
| Model | LFHY-2000 | LFHY-3000 | LFHY-4000 | LFHY-5000 |
|---|---|---|---|---|
| Power (kW) | 1.1 | 1.5 | 2.2 | 3 |
| Voltage (V) | 220 | 380 | 380 | 380 |
| Frequency (Hz) | 50 | 50 | 50 | 50 |
| Rotating Speed (r/min) | 2800 | 2840 | 2840 | 2870 |
| Air Flow (m³/h) | 1900-2400 | 2500-3100 | 3400-4100 | 3800-4600 |
| Pressure (Pa) | 1350-1240 | 1510-1390 | 1720-1580 | 1900-1740 |
| Noise (dB) | <80 | <80 | <85 | <85 |
| Quantity of Filter Cartridges | 1 | 2 | 2 | 4 |
| Ash Cleaning Mode | Manual / Auto | Manual / Auto | Manual / Auto | Auto |
| Suction Arm Spec. Dia. * Length (mm) | 160*2000 | 160*2000 | 160*2000 | 160*3000 |
| Suction Arm Quantity | Single / Double | Single / Double | Single / Double | Double |
Core Advantages
High mobility with lockable casters
Fitted with directional brake casters, the dust collector can be freely moved to any position inside the workshop. It is not limited by unfixed dust generation points. Once positioned, the wheels can be locked to keep the unit stable during operation.
High purification efficiency for welding smoke
Under rated airflow, the fume removal efficiency reaches ≥99%. The treated clean air can circulate directly inside the workshop without external exhaust ducting, which saves the cost of complicated ductwork installation.
Premium PTFE membrane filter cartridge
The core filtration element uses imported high-precision PTFE coated filter media. It delivers high filtration accuracy, stable performance and low consumable cost. The filter cartridge does not require frequent replacement, reducing material and labor expenses for long-term operation.
Constant suction and stable performance
The unit maintains steady suction volume and consistent purification capacity throughout the working cycle. Automatic pulse cleaning keeps the filter cartridge from rapid clogging.
Safe and reliable control system
The electric control system is designed with high-voltage leakage protection. The front spark arrester effectively blocks welding sparks and greatly lowers fire hazard from hot metal particles. Internal sound insulation cotton reduces running noise to meet environmental noise requirements.
360° flexible suction arm
The universal suction arm can hover freely in three-dimensional space and reach dust sources at any angle. It brings great convenience for welders and improves working efficiency. Custom suction hoods can be matched for special working conditions.
Flexible processing configuration
It supports single mobile unit for one workstation, or multiple units grouped for centralized multi-station fume extraction. Customized size and function modification are acceptable for special project demands.
Simple maintenance and easy cleaning
The pull-out ash drawer allows quick dust dumping. The filter cartridge can be inspected and replaced conveniently. The whole structure is compact and easy to service.
Application Scenarios
This mobile cartridge dust collector is widely used in automotive, metallurgy, electronics, shipbuilding, heavy industry, machinery, sheet metal, plastic, rubber, steel, pharmaceutical, military, paper, ceramic, chemical, glass and other industries. It purifies pollutants generated during welding, polishing, cutting and grinding procedures.
It is suitable for fume treatment from MMA welding, CO₂ shielded welding, MAG welding, TIG welding, wave soldering, special welding and gas cutting on carbon steel, stainless steel, aluminum and other metal materials. It works perfectly for manual welding, fixture welding and robot welding stations. It serves as a standalone Dust Collector Filter for decentralized workshop dust points. When the automatic pulse cleaning function is activated, the supporting Air compressor filter must be maintained regularly to provide dry, oil-free compressed air for pulse valves.
Installation, Operation and Maintenance
Placement and suction arm setup
Place the unit on flat ground and lock the casters after positioning. Adjust the flexible suction arm and suction hood to keep the hood 15–30 cm above the welding point for optimal smoke capture. Avoid blocking the suction inlet.
Power supply check
Confirm the voltage matches the model specification before startup. Check the wiring and leakage protection function. Do not run the fan without connecting the suction arm.
Spark arrester inspection
Check the spark arrester regularly and remove accumulated metal sparks and debris to prevent blockage and fire risks.
Filter cartridge and ash drawer maintenance
Empty the ash drawer on a fixed schedule. When the airflow drops obviously, trigger pulse cleaning or take out the cartridge for inspection. Replace the cartridge if it is damaged, oil-soaked or permanently blocked.
Compressed air system maintenance (auto-clean version)
Check the Air compressor filter periodically, drain water and replace the filter element on schedule. Dirty compressed air will cause pulse valve sticking and cartridge fouling.
Noise and daily routine check
Listen for abnormal noise during operation. If unusual vibration or sound appears, shut down the machine and check the fan and internal components.
FAQ
Q1: What is the main difference between mobile welding fume collector and stationary cartridge dust collector?
A: This mobile model is designed for scattered, frequently changed welding stations. It is equipped with wheels and flexible suction arms, no fixed ducting required. Stationary large cartridge dust collectors are usually installed for fixed, high-volume continuous dust sources.
Q2: Can this machine recycle clean air inside the workshop?
A: Yes. Its fume removal efficiency reaches ≥99%. After filtration and activated carbon adsorption, the clean air can be circulated indoors, which is ideal for workshops without external exhaust conditions.
Q3: Do I need an Air compressor filter for this mobile dust collector?
A: Only for models with automatic pulse back-blowing. Manual ash-cleaning versions do not need compressed air. Auto-clean versions require an Air compressor filter to protect pulse valves.
Q4: How long is the service life of the PTFE filter cartridge?
A: Under normal dry welding fume conditions, the PTFE cartridge can last 6–12 months. Heavy oil smoke, high-temperature spatter or wet dust will shorten its service life.
Q5: Can one unit serve two welding stations at the same time?
A: Yes. Select models with double suction arms, such as LFHY-5000, which is equipped with dual suction arms. The total air volume needs to match the simultaneous smoke generation of both stations.
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