To create much more benefit for consumers is our company philosophy; customer growing is our working chase for Concrete Grinding Vacuum, Industrial Automatic Vacuum Cleaner, Hepa Dust Collector, We have now ISO 9001 Certification and qualified this item .in excess of 16 years experiences in manufacturing and designing, so our items featured with best quality and competitive selling price. Welcome cooperation with us!              
              100% Original Factory Dust Extractor For Power Tools - AC21/AC22 2 Motors Auto Pulsing Hepa 13 Concrete Vacuum – Bersi              Detail: 
              
                                          Main features:
✔ Two powerful Ametek motors, ideal for grinder working width below 600mm.
✔  Incorporates cyclonic separation and  a innovative auto pulsing cleaning system,without airflow losing while self cleaning,keep strong suction and  maximises work efficiency. Without air compressor, very reliable and low maintenance cost.
✔ OSHA compliant 2- stage filtration system to ensure a safe and clean air. In the priary stage, the two cylindrical filters rotate to pulsing clean. In the second stage, 2PCS H13 HEPA filters with 99.99% @0.3μm efficiency.
✔ Continuous bag disposal system ensure a easy and dust-free bag changes.
 
models and specifications:
 
| Model |  | AC22 | AC21 | 
| Voltage |  | 240V  50/60HZ | 120V 50/60HZ | 
| Power | KW | 2.4 | 2.4 | 
| HP | 3.4 | 3.4 | 
| Current | Amp | 9.6 | 18 | 
| Water lift | mBar | 240 | 240 | 
| inch” | 100 | 100 | 
| Aifflow(max) | cfm | 258 | 258 | 
| m³/h | 400 | 400 | 
| Pre-filter |  | 2.0㎡>99.9%@0.3um | 
| Hepa filter(H13) |  | 2.4㎡>99.99%@0.3um | 
| Filter cleaning |  | Auto pulsing cleaning | 
| Dimension | inch/(mm) | 22″X28″X49″/570X710X1240 | 
| Weight | lbs/(kg) | 117lbs/53kg | 
How does Bersi Auto pulsing vacuum work:

Details

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              We always continually offer you by far the most conscientious customer service, and the widest variety of designs and styles with finest materials. These attempts include the availability of customized designs with speed and dispatch for              100% Original Factory Dust Extractor For Power Tools - AC21/AC22 2 Motors Auto Pulsing Hepa 13 Concrete Vacuum – Bersi              , The product will supply to all over the world, such as: Rome, Denmark, Madagascar, We are your reliable partner in the international markets of our products. We focus on providing service for our clients as a key element in strengthening our long-term relationships. The continual availability of high grade products in combination with our excellent pre- and after-sales service ensures strong competitiveness in an increasingly globalized market. We are willing to cooperate with business friends from at home and abroad, to create a great future. Welcome to Visit our factory. Looking forward to have win-win cooperation with you.