Kenda Pump Industry specializes in providing high-quality polyurethane (PU) wet-end parts for slurry pumps, including impellers, liners, and throat bushings, etc. Specially designed for fine particle and high sliding wear conditions, they offer superior tear resistance and wear resistance compared with conventional rubber, greatly extending service life and reducing downtime. 100% interchangeable in size and customizable for operating conditions.
Parts Category: Impellers, Liners, Front Throat Bushings, Rear Throat Bushings, etc.
Materials: U01 / U05 / U08, U38, U24 / U64, etc.
Stock Status: Sufficient stock, fast delivery.
In slurry pump applications, fine ore or tailings particles smaller than 3mm often exert continuous sandpaper-like sliding abrasion, which frequently causes rapid efficiency loss in metal wetted parts or tearing and chunking in rubber components. Our polyurethane (PU) polymer spare parts series is specifically developed to fill this gap.
Using advanced automated liquid casting technology, we offer a full range of material grades including U01, U05, U38 and more. These materials can be precisely tailored to your operating conditions with a hardness range of Shore A 85–95, while delivering superior hydrolysis resistance and tear strength compared to conventional materials.
By choosing our polyurethane parts, you benefit from lighter equipment load, higher hydraulic efficiency, and longer intervals between shutdowns.
Polyurethane (PU) is an ideal material for handling ultra-fine particle slurries due to its excellent elasticity and wear resistance. We offer 100% interchangeable PU wetted parts for standard slurry pumps, including:
• PU Impellers: Specially designed to reduce sliding wear from fine particles. Their extremely smooth surface effectively minimizes hydraulic friction and improves pumping efficiency.
• PU Volute Liners: Featuring outstanding tear strength, they are less prone to the chunking commonly seen in rubber when handling sharp, fine-particle materials.
• PU Frame Plate Liner Inserts: Lighter than metal parts for easier installation, they provide longer-lasting protection than rubber in specific chemically corrosive and high-wear environments.

Unlike our high-chromium alloy and natural rubber, the polyurethane series uses special polymer synthetic materials, with the following core advantages:
|
Properties |
Polyurethane (PU) Performance |
Suitable Applications |
|
Wear Resistance |
Excellent sliding wear resistance with low surface friction coefficient. |
Fine & sharp particles (e.g., flotation tailings, fine ore sand). |
|
Tear Strength |
High physical strength, tear resistance significantly better than natural rubber. |
Media that easily scratch or peel rubber surfaces. |
|
Temperature Range |
Recommended for operation below 70°C (158°F). |
Normal or low-to-medium temperature slurry transport. |
|
Oil / Chemical Resistance |
Better resistance to certain oils and chemicals. |
Slurries with minor oil or specific flotation reagents. |
We provide material codes fully consistent with international standards to ensure hassle-free replacement:
U01 / U05 / U08: General high-wear-resistant grade, ideal for handling fine ore sand and concentrate with particle size <1mm.
U38: Impact-resistant grade, offering superior resistance to cracking for medium-sized particles (1–3mm).
U24 / U64: Special corrosion-resistant grade, suitable for complex slurries containing corrosive flotation reagents.
Our polyurethane parts are not molded, but manufactured with an advanced Liquid Casting Process:
Precise Mixing & Casting: Automatic equipment is used to accurately control the ratio of polyurethane prepolymer to curing agent, ensuring perfect combination of material molecular chains and eliminating internal bubbles.
Constant Temperature Curing: After casting, the parts are placed in a dedicated constant-temperature oven for long-term curing to achieve optimal Shore hardness (typically Shore A 85–95) and physical strength.
Dynamic & Static Balance Testing: All polyurethane impellers undergo strict dynamic balance verification before delivery to prevent destructive vibration of equipment at high rotating speeds.
Comparison Table of Partial Pump Model Part Codes
|
Part Category |
Part Code |
Applicable Pump Models |
|
Impeller |
B1127 |
1.5/1B-AH(R) |
|
B15127 |
2/1.5B-AH |
|
|
C2147 |
3/2C-AH(R) |
|
|
C3147 |
4/3C-AH |
|
|
D3147 |
4/3D-AH(R) |
|
|
E4147 |
6/4D-AH(R) 6/4E-AH(R) 6/4X-AH |
|
|
F6147 |
8/6E-AHR |
|
|
FAM8147 |
10/8F-AH |
|
|
G10147 |
12/10ST-AH |
|
|
G12147 |
14/12ST-AH |
|
|
GAM14147 |
16/14TU-AH |
|
|
Front Liner |
E4083 |
6/4D-AH(R) 6/4E-AH(R) |
|
F6083 |
8/6E-AHR 8/6X-AH 8/6R-AH(R) |
|
|
G8083 |
10/8F-AH 10/8ST-AH 10/8X-AH |
|
|
G12083 |
14/12ST-AH |
|
|
H14083 |
16/14TU-AH |
|
|
back liner |
B1041NA |
1.5/1B-AH(R) |
|
B15041NA |
2/1.5B-AH |
|
|
C2041 |
3/2C-AH(R) |
|
|
D3041 |
4/3C-AH 4/3D-AH(R) |
|
|
E4041 |
6/4D-AH(R) 6/4E-AH(R) 6/4X-AH |
|
|
F6041 |
8/6E-AHR 8/6X-AH 8/6R-AH(R) |
|
|
G8041 |
10/8F-AH 10/8ST-AH 10/8X-AH |
|
|
G10041 |
12/10ST-AH |
|
|
G12041 |
14/12ST-AH |
|
|
H14041 |
16/14TU-AH |
|
|
Volute Liner |
B1110 |
1.5/1B-AH(R) |
|
B15110 |
2/1.5B-AH |
|
|
C2110 |
3/2C-AH(R) |
|
|
D3110 |
4/3C-AH 4/3D-AH(R) |
|
|
E4110 |
6/4D-AH(R) 6/4E-AH(R) 6/4X-AH |
|
|
F6110 |
8/6E-AHR 8/6X-AH 8/6R-AH(R) |
|
|
G8110 |
10/8F-AH 10/8ST-AH 10/8X-AH |
|
|
G10110 |
12/10ST-AH |
|
|
G12110 |
14/12ST-AH |
|
|
H14110 |
16/14TU-AH |
|
|
Due to limited space, not all part specifications and models can be displayed. For a complete list or customized solutions, please feel free to contact us by email at any time. |
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Considering the sensitivity of polyurethane materials to UV light and extremely humid environments, we have established exclusive packaging standards:
Light & Moisture Protection: Each polyurethane component is tightly wrapped with opaque, moisture-proof and UV-resistant film to prevent material aging during long-distance transportation and storage.
Fumigation-Free Wooden Cases: Reinforced fumigation-free wooden cases that meet international export standards are adopted, with shock-absorbing materials filled inside to ensure that these relatively lightweight but smooth-surfaced parts are free from extrusion, deformation or scratches during transit.
Q1: When should I choose polyurethane parts over rubber parts?
A: Polyurethane is the better choice when your slurry contains a large number of fine, sharp-edged particles, or when your existing rubber parts frequently suffer from cutting, tearing, or chunking.
Rubber performs better against direct impact from large particles, while polyurethane excels at resisting sliding abrasion from fine particles.
Q2: Can polyurethane parts directly replace my existing metal or rubber parts?
A: Absolutely. Our polyurethane parts are designed with exactly the same dimensions as standard OEM parts. They allow for 100% drop-in replacement without modifying the pump casing or bearing assembly.
Q3: What is the maximum operating temperature for polyurethane impellers?
A: The heat resistance of polyurethane is relatively limited. We recommend that the continuous operating medium temperature for polyurethane wetted parts should not exceed 70°C.
Excessively high temperatures will soften the material and reduce its wear resistance. For high-temperature applications, we recommend viewing our metal spare parts page.
Disclaimer:KENDA has no affiliation or business relationship with Warman®, a company under the Weir Minerals Group. All names, models, symbols and descriptions in this document are for reference only and do not imply that the listed pumps or spare parts are Warman pump products. KENDA slurry pump parts are only interchangeable and compatible with Warman® slurry pump parts.
This document is the property of KENDA Pumps. No part of this document may be reproduced or disclosed to any third party without prior written authorization.