DBS 350 DBS 350-240, 3Ph 200-240 V Δ / 345-415 V Y 50 Hz, 220-275 V Δ / 380-480 V Y 60 Hz

Atlas Copco DBS 350 – single-stage side channel blower with single impeller

Depending on the model, the DBS 350 delivers up to 265 m³/h at 50 Hz and up to 315 m³/h at 60 Hz. According to the data sheet, it reaches down to −240 mbar in vacuum operation and up to +220 mbar in compressor operation. The motor power is 2.2–2.55 kW (IE3). Dimensions up to 366 × 406 × 366 mm (L × W × H), weight 31.8 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 350

The DBS 350 is available from Ehrler & Beck in one variant: 8055810015 (DBS 350-240). 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	265
Pumping speed 60Hz	315
Rated motor power 50Hz	2.2
Rated motor power 60Hz	2.55
Motor efficiency class	IE3
Weight	31.8
Length	36.6
Width	40.6
Height	36.6
Inlet connection flange	G 2"
Outlet connection flange	G 2"
Noise level	70 dB(A)
Cooling method	Air cooling
Oil type	Oil-free

Additional technical data