Hotline: 49 (0) 7563 909020 Opening hours: Mon.-Thu. 08:00 – 17:00 and Friday 08:00 to 12:00 o'clock


Energy efficient – powerful – flexible


Equipped with a modern plastic propeller, our most energy-efficient model can withstand the toughest demands.

Advantages of the ARMA MIX COMPACT

For side & ceiling installation in 7.5, 11.0 or 15.0 kW.

A low-wear 3D polyamide propeller, 360 degree adjustability and an effective 100 revolutions per minute – The Compact convinces in many ways.

Easy installation – A gas-tight base frame is attached to the agitator, which is screwed onto the embedding frame. This is firmly anchored in the tank.

High stirring performance and excellent mixing – with short running times.

Easy maintenance thanks to electric drive located outside the tank
Ex – zone 2 approval
Swivel axis is outside the tank
The drive shaft with multiple bearings runs in an oil bath
Suitable for concrete or steel tanks
Ceiling installation or installation through the tank wall possible

Double corrosion protection
Hot dip galvanizing
Tar epoxy coating or in V2A or V4A design

Further details

High efficiency with varying dry substance content
Designed for 24 hour operation
Large swivel range – effective agitator length in the tank up to 4.0 m: can be continuously adjusted during operation depending on substrate composition, quantity and dry matter content, as no bottom bearing is required
Motor power selectable from 7.5 – 15.0 kW
3D propeller made of polyamide PA12 (pressure blade) can be used with a bacteria-protecting speed of 100 or 200 rpm

Biogas tank: hydrolysis-fermenter-post-digester final storage Dry matter content up to 15
Substrate temperature up to 70°C
pH values 6.5 – 8.5

Side installation through the wall or ceiling installation
Tanks made of: Concrete / enamel / stainless steel / steel or lagoons Installation depth up to 3.0 m below maximum filling level Concreting frame: 1.15 x 1.15 m
Special dimensions on request

Mixing of the tank from above through the ceiling or laterally through the wall
Pushing agitator

Technical data

Agitator lengths: 3.0/ 4.0 m depending on agitator blade size (length in tank) Protection tube: Ø 127 mm in stainless steel
Output tube: Ø 89 mm in V2A, multiple bearings, runs in oil bath (SAE 80 W 90)
Support tube: to accommodate output shaft, protection tube, support tube cover and coupling, powder coated
Base frame with support tube cover Ø 880 mm (gas-tight), galvanized and coated with tar epoxy resin (stainless steel version on request) Double bellows seal made of EPDM
Sound pressure level: 78 dB(A) without sound insulation hood I 71 dB(A) with sound insulation hood


Laterally via support tube cover: 360 ° inclination up to 45 °.
Tilt adjustment via top link
Pivot axis outside the tank


Power: 7.5 I 11.0 I 15.0 kW
Voltage: 400 V resp. 460 V
Frequency: 50 Hz resp. 60 Hz
Speed: 1,460 rpm resp. 1,760 rpm Ex-motors: II 3G Ex n II T3
Motor protection: 3 x PTC 160° Efficiency class: IE 2 resp. IE 3 with oil expansion tank


Spur gear, helical, low-noise
Ex-gearbox: Zone II
Rotational speeds:

7.5 kW – 100 rpm (50 Hz) IE3

11.0 kW – 100 rpm (50 Hz)

15.0 kW – 200 rpm (50 Hz)
Separate oil chamber, gear oil ISO VG 220 mineral oil
Oil change after 10,000 operating hours (every 2 years)


Speed: 200 rpm (50 Hz)
Ø 1.000 – 1.400 mm
3D polyamide agitator pushing propeller

We recommend soft start control/frequency inverter
Delivery without connection cable