Brand: Allweiler

Allweiler ALLIFT Submersible Elevator Screw Pump Series

Name: Allweiler ALLIFT Elevator Screw Pump – Brochure & Quote
Brand: Allweiler
SKU: ALLWEILER-ALLIFT

Description

Quiet submersible screw pump for hydraulic elevators

The Allweiler ALLIFT is a submersible elevator screw pump series for hydraulic lifts, lifting platforms, stages and other hydraulic machines. It is a three-rotor screw pump, a positive displacement rotary pump with an axial flow design, and the brochure describes high performance at a very low noise level for mineral oil-based hydraulic oils or synthetic hydraulic fluids and similar liquids.

There are only three moving parts, and the main screw is the only driven part that extends outside the case. The idler screws are turned hydraulically by the fluid being pumped, so there is only a rolling action between drive and idler screws, which removes noise and vibration. The double lead screw gives continuous non-pulsating flow and the rotors are balanced axially and radially.

Technical specifications

Data from the Allweiler ALLIFT brochure (2018.10). Ratings are at 3400 RPM and 150 SSU, based on Hydraulic Institute Standards (horsepower maximum, flow minimum).

Parameter	Specification
Flow capacities	Nineteen capacities from 8 to 260 GPM
Models	20, 40, 80, 140, 210, 280 and 440 series, for example 20-38, 40-41, 80-42, 140-43, 210-46, 280-51, 440-46
Example 20-38	8.6 GPM at 200 PSI, 1.7 HP
Example 80-42	39 GPM at 200 PSI, 6.7 HP
Example 440-46	258 GPM at 200 PSI, 41.5 HP
Rotor housing and rotors	Aluminium alloy rotor housing; steel rotors
Other parts	Stainless steel strainer; cast iron mounting flange; steel discharge connection
Discharge connection	20: 3/4 in NPT; 40: 1 in NPT; 80: 1 1/2 in NPT; 140, 210, 280: 2 in NPT; 440: 3 in NPT
Net weight	20: 6 lb; 40: 9 lb; 80: 13 lb; 140: 27 lb; 210: 34 lb; 280: 41 lb; 440: 76 lb
Motor interface	Common shaft and mounting dimensions; usable with various submersible motors
Rotation	Clockwise, viewed from drive end

Sizing for a lift

The brochure includes a plunger speed table for ram displacement at 350 PSI, 3400 RPM and 150 SSU, which turns pump delivery into lift speed for plunger diameters from about 3 7/8 inch to 10 inch. Larger plungers give lower speeds for the same pump delivery, so the table is the quickest way to match a model to a required car speed.

Pick the model from the required flow and the working pressure of the lift, then check the motor power in the rating table; the table lists pressures from 200 to 1000 PSI. The light weight and common mounting dimensions ease handling and replacement.

Things to confirm

Specify the hydraulic oil grade and viscosity, rated pressure, required lift speed and the submersible motor you plan to couple. The brochure covers lift duty only; for industrial lubricating-oil duty see other Allweiler screw pumps such as the Allweiler TRILUB TRL V16-40R41 screw pump. Other pumps are listed in the pump category.

Documents and quotation

The ALLIFT brochure can be downloaded on this page. Seven Star LLC is an independent supplier in Muscat; send the lift data, oil grade, pressure and motor information with your RFQ.

Datasheets & Documents

Brochure Allweiler ALLIFT Submersible Elevator Screw Pump Brochure (2018.10) Download

Reviews (0)

Reviews

There are no reviews yet.

How would you rate this product?

About brand

Allweiler is a German pump manufacturer and describes itself as Germany's oldest pump maker. Gotthard Allweiler invented a fire-fighting wing pump in 1860, and manufacturing moved to Radolfzell on Lake Constance in 1876, where Allweiler is still based. It joined the Colfax pump group in 1998, became part of CIRCOR in 2017, and CIRCOR has been owned by KKR since 2023.

Seven Star LLC lists the Allweiler TRILUB TRL screw pump and supplies Allweiler pumps and spare parts to power plants, marine operators and process plants in Oman as an independent supplier.

Allweiler company profile

Founded	1860, by Gotthard Allweiler
Headquarters	Radolfzell, Germany, since 1876
Ownership	CIRCOR, owned by KKR since 2023; previously Colfax from 1998
First product	A fire-fighting wing pump
Product families	Screw pumps (SN, SM, TRILUB), progressing cavity pumps (AE, AEB), centrifugal pumps (NT, NI, ALLMARINE), gear pumps, marine and fuel oil pumps

Milestones

1860: Gotthard Allweiler invents the wing pump.
1876: Manufacturing moves to Radolfzell.
1998: Allweiler joins the Colfax pump group.
2017: Allweiler becomes part of CIRCOR.
2023: CIRCOR becomes part of KKR.

Allweiler TRILUB screw pumps

TRILUB is Allweiler's name for a family of three-screw pumps built for lubricating and hydraulic oil service. One driven screw meshes with two idler screws inside a liner and moves the oil axially with little pulsation, which suits lube oil circuits of turbines, compressors, gearboxes and diesel engines. The listed TRL V16-40R41 is a complete pump from this family. Buyers who search for Allweiler oil pumps are usually looking for this kind of unit, in the GCC as elsewhere.

Allweiler products we list

Family	Examples
Pumps	AEB-DE Progressing Cavity Dosing Pump Se…, ALLFUEL AFI Horizontal Screw Pump for Fu…, EMTEC-C High-Pressure Coolant Supply Scr…, NI Series Inline Volute Casing Centrifug…, NT Series Volute Casing Centrifugal Pump…, OptiFix Progressing Cavity Pump AEB 2E-M…, SN Series Three-Screw Pump for Lubricati…, TRILUB TRL V16-40R41 Screw Pump Complete

Ordering Allweiler pumps and parts: what we need

Send the full type designation and the serial or order number from the nameplate. For a complete pump add the oil grade and viscosity, flow, discharge pressure, speed and motor data. For parts, name the item needed, such as the screw set, liner, mechanical seal or bearing.

Facts checked against CIRCOR's Allweiler history page, October 2026.

Browse Allweiler products by category: Pumps.