Table of Contents

Nationwide
Delivery

European
Quality

High-Level
Technical Team

Easy Warranty
and Returns
From 8.550.000₫
Product Introduction
WPO 135 Gear Motor 3kW 4Hp is a worm gear drive device featuring powerful torque enhancement and outstanding stable operation. With advanced manufacturing technology, the product provides an optimal solution for production lines requiring high reliability and continuous load-bearing capacity.
Genuine 24-month warranty – Fast nationwide delivery – Full CO/CQ documentation – Commitment to pure copper windings for energy saving.
WPO 135 Gear Motor 3kW 4Hp is a combination of an electric motor (1-phase electric motor or 3-phase electric motor) and a gearbox (worm gearbox), ensuring powerful and stable transmission.
The gear motor is manufactured using advanced technology, ensuring energy saving, noise reduction, and extended machinery lifespan. The equipment is suitable for conveyor systems, mixers, presses, packaging machines, and heavy industrial applications requiring stable rotational speeds.
The entire body of the 3-phase electric motor 3kW 4Hp is cast from solid iron, creating a sturdy structure with high load-bearing capacity and effective vibration resistance. The external powder coating prevents rust and increases durability in humid or chemical environments.
The WPO 135 worm gearbox has a precision-machined shaft, ensuring smooth transmission, reduced wear, and stable performance during operation. Internal lubricating oil inside the gearbox housing ensures smooth transmission.

This worm gear motor belongs to the 1.1kW to 3.7kW gear motor range, with a detailed structure including:


The WPO size 135 gear motor combined with a 3kW (4Hp) motor is widely applied thanks to its flexible installation capability and extremely easy maintenance. Please review the detailed data table below to plan for precise spare parts procurement.
The 3-phase 4-horsepower motor block maintains an extremely high operating lifespan thanks to an optimized cooling fin system and pure copper core structure. Please check the 28mm shaft diameter and 8mm keyway parameters on the following drawing to ensure a tight assembly without load slipping during startup.
| Model | 100L |
| Shaft diameter | 28mm |
| Keyway | 8mm |
| Dimensions | 385mm * 215mm * 270mm |
| Mounting type | Foot mount (B3) |
| Protection class | IP55 |
| Insulation class | Class F |

The WPO 135 gearbox features a thick cast iron housing that perfectly protects the internal worm gear assembly from mechanical impacts. Below are the specific assembly parameters to assist engineers in periodically aligning the drive chain sprocket system.
| Size | 135 |
| Input shaft diameter | 35mm |
| Output shaft diameter | 55mm |
| Dimensions | 495mm x 433mm |

1-phase gear motor or 3-phase gear motor is widely applied in:

With a sturdy structure, quality worm gearbox, and continuous working capability, the WPO 135 Gear Motor 3kW 4Hp is a suitable choice for many industrial applications requiring stable torque and high durability.
Don’t forget to follow the gear motor videos and compilation videos to update yourself with knowledge, models, and new transmission solutions to serve your investment and effective usage process.
When purchasing gearmotors at Thanh Thai Motor, you will receive benefits such as:
Warranty up to 24 Months
All gearmotor products at Thanh Thai Motor come with an official 24-month warranty. We are committed to clear after-sales service, with quick and transparent processing procedures – ensuring customer peace of mind during use.
Nationwide Delivery
No matter which province or city you are in, Thanh Thai Motor is always ready to support fast delivery, ensuring on-time delivery, careful packaging, and safe transportation. We supply a full range of 220V gearmotors, variable speed motors, etc., for the diverse needs of customers nationwide.
Products Meet European Quality Standards with German Technology
Our products are manufactured using modern German technology, meeting European standards. Models such as integrated gearmotors, variable speed motors, or 220V gearmotors all ensure stable operation and superior durability.
Competitive Pricing, Good Discounts for Dealers and Bulk Purchasers
We offer affordable gearmotors, suitable for projects with limited budgets. In addition, Thanh Thai Motor has special policies and offers for dealers and bulk purchasers.
Quality Commitment
All 220V gearmotors here are wound with pure copper wire. This ensures powerful, smooth operation and energy savings.
Full Certification Documents: CO, CQ,...
All products such as integrated gearmotors, conveyor motors, or speed reducers come with full Certificates of Origin (CO) and Quality (CQ), meeting stringent technical requirements in industry.
Need advice on choosing the right gearmotor for your needs? Contact Thanh Thai Motor immediately using the methods below:
| Product Type | WPO Gear Motor |
| Rated Power | 3kW 4Hp |
| Power Range | 0.18kW – 15kW |
| Frequency | 50Hz |
| Voltage | 220V, 220/380V |
| Material | Cast Iron or Aluminum |
| Mounting Type | Mounted via Pulley or Coupling |
| Place of Manufacture | German Technology, Manufactured and Assembled in China |
| Brand | JUMAR, ADTECH |
| Warranty Period | Up to 24 Months |
| Shaft Diameter | 28mm |
| Keyway | 8mm |
| Speed | 1400 – 1500 RPM |
| Input Shaft Diameter | 35mm |
| Output Shaft Diameter | 55mm |
| Gear Ratios | 1:10 to 1:60 |

Nationwide
Delivery

European
Quality

High-Level
Technical Team

Easy Warranty
and Returns
William BrownPurchased
Private: WPO 135 Gear Motor 3kW 4Hp is okay, but the delivery took too long
James Paul GreenPurchased
Private: WPO 135 Gear Motor 3kW 4Hp wish the team had been more engaging
Benjamin TaylorPurchased
Private: WPO 135 Gear Motor 3kW 4Hp works, service could be warmer
Hannah DavisPurchased
Private: WPO 135 Gear Motor 3kW 4Hp a satisfactory product, though consultation felt rushed
John Smith
Good motor, but the shipping was quite slow