DBS 320 DBS 320-290, 3Ph 345-415 V Δ / 600-720 V Y 50 Hz, 380-480 V Δ / 660-720 V Y 60 Hz

Atlas Copco DBS 320 – single-stage side channel blower with single impeller

Depending on the model, the DBS 320 delivers up to 318 m³/h at 50 Hz and up to 376 m³/h at 60 Hz. According to the data sheet, it reaches down to −320 mbar in vacuum operation and up to +360 mbar in compressor operation. The motor power is 2.2–4.6 kW (IE3). Dimensions up to 389 × 455 × 384 mm (L × W × H), weight 31.5–40 kg, inlet and outlet G 2" (DN 50). Atlas Copco marks the data sheets of the models with part number 8055810… as preliminary (as of 09/2024).

Oil-free side channel principle

According to Atlas Copco, the DBS range with single impeller is suitable for volume flows up to 1370 m³/h at a vacuum of up to −360 mbar (50 Hz). The impeller accelerates the air in the side channels without contact; there is no oil, no oil filter and no exhaust filter, and the exhaust air stays clean.

Applications of the range

Atlas Copco lists, among others, pad printing, paper cutting, roller cleaning, yarn processing, pneumatic conveying, vacuum tables, drying, the extraction of condensate, paint mist, chips and dust, and waste water treatment.

Variants of the DBS 320

The DBS 320 is available from Ehrler & Beck in three variants: 8055810046 (DBS 320-190 1Ph), 8055810017 (DBS 320-190), 8055810018 (DBS 320-290). The limit values of each variant – vacuum and compressor operation, 50 and 60 Hz – are given in the technical data.

Features of the DB series

• Highly efficient: IE3 motors as standard
• Low noise level thanks to the blade geometry and integrated silencers on the suction and pressure sides
• Clean and oil-free: contact-free operating principle without contamination of the exhaust air
• Fully enclosed aluminium housing, motor with thermal protection, durable bearings
• Modular design, virtually maintenance-free
• Compact footprint, can be used as a vacuum pump or compressor

Pumping speed 50Hz	318
Pumping speed 60Hz	376
Rated motor power 50Hz	4
Rated motor power 60Hz	4.6
Motor efficiency class	IE3
Weight	40
Length	38.9
Width	45.5
Height	38.4
Inlet connection flange	G 2"
Outlet connection flange	G 2"
Noise level	69 dB(A)
Cooling method	Air cooling
Oil type	Oil-free

Additional technical data