ALLWEILER High Pressure Hydraulic and Lubrication Three-Screw Pump

The core structure of the three-screw pump consists of one driving screw and two driven screws, which mesh precisely to form a continuous sealed cavity, achieving stable media delivery. This pump type is specifically designed for high-pressure hydraulic systems, lubricating oil supply, and other applications, and performs exceptionally well in applications with pressures up to 160 bar.

ALLWEILER Three-Screw Pumps | The Preferred Solution for High-Pressure Hydraulic and Lubrication Systems

Product Overview

The ALLWEILER three-screw pump is one of the core products of the German company ALLWEILER. Founded in 1860, ALLWEILER

 is one of Germany's oldest pump manufacturers, and its screw pump technology enjoys a global reputation in the industrial sector.

ALLWEILER High Pressure Hydraulic and Lubrication Three-Screw Pump Core technical features

1. Outstanding high-pressure capability

ALLWEILER three-screw pumps cover a wide range of needs from low-pressure lubrication to high-pressure hydraulics. High-pressure 

models represented by the SE series have a maximum working pressure of up to 160 bar and are suitable for pressure generation in 

hydraulic systems.

2. Smooth and pulsation-free transportation

The three-screw structure achieves nearly pulsation-free flow output, which is crucial for hydraulic systems and precision lubrication

 systems that require highly stable flow.

3. Wide viscosity adaptability

It can handle media with a viscosity range of 3 ~ 760 mm²/s, covering hydraulic oil, synthetic hydraulic fluid, lubricating oil, natural 

oil, etc., and is suitable for normal and high-viscosity working conditions.

4. Low noise, long life

The optimized screw profile and precision manufacturing process significantly reduce operating noise and vibration, extending 

the service life of the pump.

5. Strong self-priming ability

The three-screw pump has good self-priming performance and can adapt to different installation heights and working conditions.

ALLWEILER High Pressure Hydraulic and Lubrication Three-Screw Pump  Main product series

SE Series (High Voltage Applications)

Maximum flow: 55 L/min

Maximum pressure: 160 bar

Applicable media: hydraulic oil, synthetic hydraulic fluid, lubricating oil

Installation method: submersible, box installation, horizontal installation

Typical applications: machine tool hydraulic systems, hydraulic device pressure generation, lubricating oil supply

SNA Series (Industrial Lubrication and API Applications)

Maximum flow: 880 L/min

Maximum pressure: 20 bar

Temperature range: 1 ~ 250℃

Viscosity range: 5 ~ 750 mm²/s

Comply with standards: API 676, optional API 682 mechanical seal

Installation method: horizontal, horizontal flange, vertical, vertical with suction pipe/suction basket

Typical applications: turbines, gearboxes, compressors, mining equipment lubrication systems, API 614 systems

ALLIFT SU series (lifting system)

Maximum flow: 820 L/min

Maximum pressure: 80 bar

Typical applications: hydraulic system pressure generation, lubricant supply, transfer pumps

Medium voltage series (SM/SN/EMTEC, etc.)

Series Highest Pressure Features

SF 100 bar small flow high pressure

SM 120 bar universal type, larger flow rate

SN 100 bar universal type, high flow rate

TRITEC 25 bar for non-lubricating liquids

CFHM 100 bar lubricating fluid, medium flow

EMTEC-A 120 bar machine tool emulsion applications

EMTEC-C 80 bar emulsion application for machine tools

ALLFUEL AFI 40 bar fuel pumping

ALLWEILER High Pressure Hydraulic and Lubrication Three-Screw Pump Core application areas

Application areas Typical scenarios Recommended series

Hydraulic system Hydraulic device pressure generation, machine tool hydraulics SE, SM, SN

Lubricant supply Turbine, gearbox, compressor lubrication SNA, ALLIFT

Mining Equipment Mining Machinery API 614 Lubrication System SNA

General Industry Industrial Equipment Lubricant Circulation ALLIFT, SNA

Fuel Delivery Fuel Oil Pumping ALLFUEL AFI

Emulsion delivery machine tool coolant EMTEC-A / EMTEC-C

Applicable media types

Hydraulic oil, synthetic hydraulic fluid, lubricating oil, natural oil, fuel oil, emulsion, non-lubricating liquid (TRITEC series)

ALLWEILER High Pressure Hydraulic and Lubrication Three-Screw Pump Summary of product advantages

Advantages Description

✅ German quality Founded in 1860, a century of technology accumulation in the pump industry

✅ Outstanding high-pressure capability, up to 160 bar, to meet harsh working conditions

✅ Smooth and pulsation-free three-screw structure, smooth and stable flow output

✅Wide viscosity adaptability 3 ~ 760 mm²/s, wide coverage

✅ Strong self-priming ability, adaptable to different installation heights and working conditions

✅ Comply with international standards SNA series complies with API 676, optional API 682 sealing

✅Flexible installation, horizontal/vertical/submersible installation methods

✅ Complete series, comprehensive coverage from low-pressure lubrication to high-pressure hydraulics

Key points for selection

Viscosity matching: Select the corresponding series according to the viscosity of the medium. The viscosity range of SNA 

series is 5-750 mm²/s, and the viscosity range of SE series is 3-380 mm²/s.

Pressure matching: Select according to system pressure requirements, choose SE series for high pressure (160 bar), choose 

SNA series for medium and low pressure (≤20 bar)

Flow requirements: Confirm the required flow rate of the system, covering 55 L/min to 880 L/min

Installation method: choose horizontal/vertical/immersed type according to the on-site space

Standard compliance: If there are API standard requirements, the SNA series is a suitable choice

Media type: Non-lubricating liquids require TRITEC series

Why choose us?

Primary source of supply: German ALLWEILER original factory channel, 100% original and authentic

Full range coverage: SE, SNA, ALLIFT SU, SM/SN, EMTEC, etc.

Professional technical support: Provide selection guidance, installation and commissioning and after-sales service

Original factory warranty: 1 year under normal use

Important note: This product is an original three-screw pump product manufactured by ALLWEILER in Germany. Please look

 for the brand logo. Choosing non-original substitutes may lead to safety hazards such as substandard performance and seal failure.