WAJ Rubber Slurry Pump
Product Description
SPECIFICATIONS:
Size: 1-22"
Capacity: 3.6-5400m3/h
Head: 6m-125 m
Handing solids: 0-130mm
Concentration: 0%-70%
Materials: Rubber, Polyurethane,High chrome, Ceramic, Stainless steel etc.
AIER® WAJ Heavy Duty Slurry Pump
Typical Applications
SAG mill discharge, ball mill discharge, Rod mil discharge, Ni acid slurry, coarse sand, coarse tailings, phosphate matrix, minerals concentrate, heavy media, sugar beet, dredging, bottom/fly ash, lime grinding, oil sands, mineral sands, fine tailings, slag granulation, phosphoric acid, coal, flotation, process chemical, pulp and paper, FGD, cyclone feed, etc.
Features
The frame plate for WAJ series pumps has interchangeable hard metal or pressure moulded elastomer liners. The impellers are made of pressure moulded elastomer liners.
The shaft seals for WAJ series can be packing seal, centrifugal seal or mechanical seal.
The discharge branch can be positioned at intervals of 45 degrees by request and oriented to any eight positions to suit installations and applications. There are many drive modes for option, such as V-belt, flexible coupling, gearbox, hydraulic coupler variable frequency, silicon controlled speed, etc. Among them, the flexible shaft coupling drive and V-belt feature of low cost and easy installation.
Pump Notation
|
200WAJ-ST: |
100WAJ-D: |
|
200: Outlet diameter: mm |
100: Outlet diameter: mm |
|
WAJ: Pump type: Rubber lined |
WAJ: Pump type: rubber lined |
|
ST: Frame plate type |
D: Frame plate type |
Performance Parameters
Aier® WAJ >> Warman AHR Rubber Slurry Pumps Performance Parameters:
| Model | Max.Power | Materials | Clear water performance | Impeller | |||||
| (kw) | Liner | Impeller | Capacity Q | Head H | Speed n | Eff. η | NPSH | Vane No. | |
| ( m3/h) | ( m) | (rpm) | (%) | (m) | |||||
| 25WAJ-B | 15 | RU | RU | 10.8-25.2 | 7-52 | 1400-3400 | 35 | 2-4 | 3 |
| 40WAJ-B | 15 | RU | RU | 25.2-54 | 5.5-41 | 1000-2600 | 50 | 3.5-8 | 5 |
| 50WAJ-C | 30 | RU | RU | 36-75.6 | 13-39 | 1300-2100 | 55 | 2-4 | 5 |
| 75WAJ-C | 30 | RU | RU | 79.2-180 | 5-34.5 | 800-1800 | 59 | 3-5 | 5 |
| 75WAJ-D | 60 | RU | RU | 79.2-180 | 5-34.5 | 800-1800 | 59 | 3-5 | 5 |
| 100WAJ-D | 60 | RU | RU | 144-324 | 12-45 | 800-1350 | 65 | 3-5 | 5 |
| 100WAJ-E | 120 | RU | RU | 144-324 | 12-45 | 800-1350 | 65 | 3-5 | 5 |
| 150WAJ-E | 120 | RU | RU | 324-720 | 7-49 | 400-1000 | 65 | 5-10 | 5 |
| 150WAJ-R | 300 | RU | RU | 324-720 | 7-49 | 400-1000 | 65 | 5-10 | 5 |
| 200WAJ-ST | 560 | RU | RU | 540-1188 | 12-50 | 400-750 | 75 | 4-12 | 5 |
| 200WMJ-E | 120 | RU | RU | 540-1188 | 10-42 | 500-900 | 79 | 5-9 | 5 |
| 200WAJ-ST | 560 | RU | RU | 720-1620 | 7-45 | 300-650 | 80 | 2.5-7.5 | 5 |
| 250WAJ-ST | 560 | RU | RU | 1152-2520 | 13-44 | 300-500 | 79 | 3-8 | 5 |
| 350WAJ-ST | 560 | M | M | 1368-3060 | 11-63 | 250-550 | 79 | 4-10 | 5 |
| 400WAJ-TU | 1200 | M | M | 2160-5040 | 8-66 | 200-500 | 80 | 4.5-9 | 5 |
| 450WAJ-TU | 1200 | M | M | 2520-5400 | 13-57 | 200-400 | 85 | 5-10 | 5 |
Main Parts Design

Main Parts:
013 - Cover Plate (Material: G01, D21, etc)
032 - Fraem Plate (Material: G01, D21, etc)
018 - Cover Plate Liner (Material: R08, R33, R38, R55, S21, S42, S31, U01, U38, etc)
036 - Frame Plate Liner (Material: R08, R33, R38, R55, S21, S42, S31, U01, U38, etc)
083 - Throatbush (Material: R08, R33, R38, R55, S21, S42, S31, U01, U38, etc)
041 - Frame Plate Liner Insert (Material: R08, R33, R38, R55, S21, S42, S31, U01, U38, etc)
147 - Impeller (Material: R26, R33, R38, R55, S21, S42, S31, U01, U38, etc)
Transmission Module Design

Drive Modes



Are Replaceable Parts for Your Rubber Lined Slurry Pumps Readily Available?
Yes, all replaceable parts for rubber lined slurry pumps are readily available and designed for full interchangeability with Warman AHR series pumps. Our china rubber lined slurry pump models, such as the WAJ series, are manufactured with modular components, allowing users to easily replace worn parts without needing complete unit replacement. This design philosophy ensures reduced downtime and lower maintenance costs for operations in mining, coal washing, metallurgy, and chemical processing industries.
Each rubber slurry pump in the WAJ range features interchangeable components like impellers, liners, frame plates, and throat bushes made from high-quality slurry pump rubber materials. These elastomer parts are pressure-moulded for excellent dimensional accuracy and long wear life, particularly when handling abrasive or corrosive slurries. The natural rubber lining used in these components effectively absorbs impact from small, non-sharp solid particles and protects the metal casing from erosion.
As one of the leading china rubber lined slurry pump manufacturers, Aier Machinery Hebei Co., Ltd. maintains a large inventory of replacement parts to ensure quick delivery for domestic and international customers. Whether it’s a packing seal, mechanical seal, or centrifugal seal assembly, users can expect full compatibility across all WAJ models. Furthermore, our global service network supports clients in Germany, the U.S., Australia, South Africa, and other regions with technical guidance and after-sales assistance.
By adopting advanced design systems such as CFD and CAD, we ensure that every rubber lined slurry pump part meets strict performance standards. This guarantees that even after multiple replacements, pump efficiency, hydraulic performance, and sealing integrity remain consistent. In short, our rubber slurry pump parts are not only easy to replace but also engineered for long-term reliability—making our WAJ series a trusted solution for industries demanding durability, flexibility, and cost-effective maintenance.
Why Choose Our Rubber Lined Slurry Pumps?
Choosing our rubber lined slurry pumps means choosing reliability, performance, and engineering excellence backed by years of manufacturing expertise. The WAJ series from Aier Machinery Hebei Co., Ltd. is a leading china rubber lined slurry pump solution that combines durability with adaptability for heavy-duty operations. Designed as a cantilevered, horizontal, centrifugal rubber slurry pump, it’s ideal for handling strong corrosive or abrasive slurries in demanding industries such as mining, coal, metallurgy, and mineral processing.
The core of our design advantage lies in the slurry pump rubber lining. This natural rubber material, pressure-moulded to perfection, provides outstanding resistance to wear and corrosion, especially when dealing with fine particles or chemical slurries. Unlike metal-lined pumps, our rubber linings are flexible, shock-absorbent, and prevent damage from impact erosion. The impellers and liners can be easily replaced or interchanged, ensuring long operational life with minimal maintenance interruptions.
Another key reason to choose our rubber lined slurry pumps is their versatile configuration options. The discharge branch can be adjusted in 45° intervals and oriented in eight different directions to fit any installation need. Multiple drive types are available, including V-belt, flexible coupling, hydraulic coupler, or variable frequency drive systems. These options make our china rubber lined slurry pump adaptable to various industrial setups while ensuring energy efficiency and smooth operation.
Supported by strong R&D capability, advanced CFD design, and precision machining, our pumps consistently meet international standards. Our materials range from high chrome iron to stainless steel and premium slurry pump rubber elastomers, all developed under strict quality control. For customers worldwide seeking long-term performance, easy part replacement, and superior wear protection, our rubber slurry pump stands as the ultimate choice for dependable slurry handling solutions.
Rubber Lined Slurry Pump for Wet Sand Applications
In wet sand and aggregate handling systems, rubber lined slurry pumps play a critical role in efficiently transporting abrasive slurries with minimal wear. The WAJ series rubber slurry pump, designed and manufactured by Aier Machinery Hebei Co., Ltd., has proven to be an excellent solution for wet sand applications in construction, dredging, and mineral processing. The natural slurry pump rubber lining ensures superior resistance against fine sand particles, preventing damage to the impeller and casing while maintaining stable hydraulic performance.
When handling wet sand mixtures, metal-lined pumps often suffer from rapid erosion due to sharp particle impact. However, rubber lined slurry pumps provide a resilient alternative—the flexible rubber absorbs impact energy, significantly extending the service life of the pump components. This advantage makes china rubber lined slurry pumps ideal for continuous-duty environments such as sand washing plants, aggregate recycling systems, and river dredging operations.
The impeller and liner in the WAJ series are pressure-moulded from premium natural rubber, ensuring consistent quality and precise balance for high-efficiency slurry movement. Additionally, the pump’s discharge branch can be rotated in 45° increments, allowing easy adaptation to various installation layouts. The robust design also supports multiple drive options like V-belt and flexible coupling, providing both convenience and reliability in operation.
From a maintenance perspective, the modular structure of our rubber slurry pump simplifies part replacement and inspection. Users can quickly access the inner components, reducing downtime and improving productivity. The combination of abrasion-resistant rubber, optimized hydraulic design, and strong structural materials enables our china rubber lined slurry pump to deliver long-lasting performance even under harsh, sandy conditions.
For sand processing plants seeking efficiency, durability, and cost savings, the WAJ rubber lined slurry pumps remain the top choice. Their proven track record in handling fine, wet, and abrasive slurries has established them as a reliable, low-maintenance pumping solution trusted across global industries.















