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Donaldson Industrial Dust Collectors
Main Models for Laser Cutting Applications
 |
 |
| Model Series | Positioning | Application Conditions |
|---|---|---|
| DFOE / DFOI (Downflo‑Oval) | Downflow integrated unit (fan & electric control integrated) | For laser cutting and plasma cutting; mainstream match for 4‑12 kW lasers. Adopts oval filter cartridges with downflow air pattern to prevent dust re‑entrainment. |
| DFE Downflo‑Evolution | High‑performance cartridge dust collector | For heavy‑duty and high‑fume‑load working conditions. Equipped with MaxPulse™ enhanced pulse‑cleaning system; filter cartridge quantity can be reduced by 40%. |
| DFPRE Pre‑engineered Series | Plug‑and‑play complete unit | For metal processing, laser cutting and welding. Pre‑installed with fan and electric control at factory; ready for commissioning after on‑site wiring. Explosion‑proof configuration is optional. |
| TD Series | Economical pulse‑cartridge dust collector | For medium‑and‑small‑volume welding and grinding. Air‑flow range: 510‑3398 m³/h. Suitable for fume treatment at individual or small work stations. |
Core Technical Features
- Patented Ultra‑Web® Nanofiber Filter Media Surface‑bonded 0.2‑0.3 μm ultra‑fine nanofiber layer realizes surface filtration, trapping dust on the outer surface of filter media. MERV15 filtration rating; 99.99 % efficiency against 0.1‑0.5 μm metal fume. FR flame‑retardant version is available for laser‑related high‑temperature spark scenarios. Thorough pulse‑jet cleaning and long filter‑cartridge service life.
- Downflo Down‑flow Airflow Structure Dust‑laden air flows downward. Dust falls into ash hopper following gravity, reducing direct impact on filter cartridges, lowering cartridge load and suppressing dust re‑entrainment. This principle is similar to TOPSINN TODC‑L gravity‑settlement design.
- MaxPulse™ Pulse‑cleaning System Optimized pulse nozzles deliver 27 % higher cleaning energy, improving compressed‑air utilization, lowering system differential pressure and cutting energy consumption.
- Intelligent Control & Equipment Interlock Delta‑P‑C01 differential‑pressure controller; optional iCue™ IoT module for remote monitoring of differential pressure, alarms and operating status. Supports start‑stop interlock with laser cutting machines and multiple communication interfaces.
- Safety Options Spark arrestor, explosion‑relief panels, anti‑static filter cartridges and explosion‑proof electric cabinets are selectable to meet metal‑dust explosion‑protection requirements.
Technical Parameters of DFOE‑4 / DFOE‑6
| Items | DFOE‑4 | DFOE‑6 |
|---|---|---|
| Filter Cartridge Configuration | 4 pcs Ultra‑Web FR flame‑retardant oval cartridges | 6 pcs Ultra‑Web FR flame‑retardant oval cartridges |
| Filtration Area | 70.6 ㎡ | 106 ㎡ |
| Fan Power | 5.5 kW | 7.5 kW |
| Air Volume | 4000 m³/h | 7000 m³/h |
| Filtration Efficiency | ≥99.99 % @0.1 μm | ≥99.99 % @0.1 μm |
| Compressed‑air Requirement | 0.6 MPa, oil‑free & water‑free | 0.6 MPa, oil‑free & water‑free |
| Unit Weight | 1000 kg | 1200 kg |
| Dust Collection Type | Pull‑out dust drawer | Pull‑out dust drawer |
Application Scope
- Fume extraction for fiber laser cutting, plasma cutting, laser welding, robot welding, metal grinding & polishing.
- One of the original‑equipment‑specified brands for laser equipment manufacturers such as Han’s Laser and HGTECH in China.
