
Nationwide
Delivery

European
Quality

High-Level
Technical Team

Easy Warranty
and Returns
From 7.300.000₫
Product Introduction
The WPO 120 Gear Motor 4kW 5.5Hp is a heavy-duty drive unit featuring an extremely robust one-piece cast iron structure. The product stands out with high torque and stable operation, helping to optimize performance for industrial production lines requiring high reliability.
24-month warranty – Nationwide fast delivery – Full CO/CQ – Highly durable wear-resistant bronze alloy worm wheel.
The WPO 120 Gear Motor 4kW 5.5Hp belongs to the gear motor line manufactured to serve applications requiring high torque and stable rotational speed. The device is a complete combination of an electric motor and a gearbox, forming a durable, smooth, and energy-saving drive system.
The motor operates powerfully, suitable for a 3-phase power supply – 3-phase electric motor, helping the system run smoothly, reducing vibration, limiting overheating, and increasing durability. This is a popular choice in mechanical engineering, processing, material manufacturing, food, and industrial automation.
The WPO 120 Gear Motor 4kW 5.5Hp is built to high technical standards, ensuring stable operation even under continuous working conditions. The entire gearbox housing is made of one-piece cast iron with superior thickness and durability, helping to protect internal components from impact, vibration, or corrosion.
The equipment surface is coated with high-grade anti-rust electrostatic paint, increasing oxidation resistance, scratch resistance, and extending equipment lifespan. The output shaft of the worm gearbox is exquisitely machined, ensuring precise transmission, smooth rotation, and significant noise reduction.


The WPO 120 gearbox uses a structure suitable for applications requiring speed reduction and increased output torque. The parameter table below provides important dimensions such as gearbox size, input shaft diameter, and output shaft diameter to support the design, installation, and replacement process.
| Size | 120 |
| Input shaft diameter | 30mm |
| Output shaft diameter | 45mm |
| Dimensions | 450mm x 381mm |

Thanks to its sturdy design, effective speed reduction capability, and stable working performance, the WPO 120 Gear Motor 4kW 5.5Hp well meets the needs of many industrial lines today.
To see more practical images and applications of gear motors, please follow the gear motor video. At the same time, the summary video will provide many useful reference information about gear motor lines, electric motors, gearboxes, and drive solutions being widely used.
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 | 4kW 5.5Hp |
| Power Range | 0.18kW – 15kW |
| Frequency | 50Hz |
| Voltage | 220V, 220/380V |
| Material | Cast Iron or Aluminum |
| Mounting Type | Pulley or Coupling Mounted |
| 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 | 30mm |
| Output Shaft Diameter | 45mm |
| Gear Ratios | 1:10 to 1:60 |

Nationwide
Delivery

European
Quality

High-Level
Technical Team

Easy Warranty
and Returns
Olivia RosePurchased
Customer service could have been more enthusiastic
LucasPurchased
Good motor performance, but shipping took a little longer
Jackson LeePurchased
The team was friendly, only wished delivery arrived sooner
AmeliaPurchased
Staff were kind, but getting an initial response took time
AbigailPurchased
Good value, yet the pre-sales advice could certainly improve