DBDt 320 8055810019 DBDt 320-420, 3Ph 345-415 V Δ / 600-720 V Y 50 Hz, 380-480 V Δ / 660-720 V Y 60 Hz

Atlas Copco DBDt 320 – two-stage side channel blower with double impeller

Depending on the model, the DBDt 320 delivers up to 320 m³/h at 50 Hz and up to 380 m³/h at 60 Hz. According to the data sheet, it reaches down to −440 mbar in vacuum operation and up to +500 mbar in compressor operation. The motor power is 5.5–6.3 kW (IE3). Dimensions up to 426 × 590 × 410 mm (L × W × H), weight 65 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 two-stage design and double impellers take the DBDt range to up to 1110 m³/h and a vacuum of up to −520 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 DBDt 320

The DBDt 320 is available from Ehrler & Beck in one variant: 8055810019 (DBDt 320-420). 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	320
Pumping speed 60Hz	380
Ultimate pressure	580
Rated motor power 50Hz	5.5
Rated motor power 60Hz	6.3
Motor efficiency class	IE3
Weight	65
Length	42.6
Width	59
Height	41
Inlet connection flange	G 2"
Outlet connection flange	G 2"
Noise level	73 dB(A)
Cooling method	Air cooling
Oil type	Oil-free

Convert units: vacuum and pressure units · Nm³/h to m³/h

Additional technical data