3-Stage Gearbox (2 UDL 1.5kW And 1 WPDX 80)

The 3-Stage Gearbox (2 UDL 1.5kW And 1 WPDX 80) is formed by combining a 2-stage gearbox and adding a Mechanical Speed Variator (UDL) to form a 3-stage gearbox. It is a multi-stage transmission solution designed for applications requiring precise speed control and high torque. The product is suitable for conveyors, mixers, packaging lines, and many other industrial systems demanding low speed but high pulling force. This is a reliable choice for businesses in need of durable, energy-efficient equipment that is easy to integrate into various production environments.

General design of the 3-Stage Gearbox (2 UDL 1.5kW And 1 WPDX 80)

The 3-Stage Gearbox (2 UDL 1.5kW And 1 WPDX 80) features a multi-stage transmission structure with an outer housing cast from sturdy cast iron or aluminum, delivering high durability and resistance to deformation under heavy loads. Its neat cubic design with well-arranged shaft, flange, and mounting positions allows for easy installation in various machine spaces. The cooling system, oil seals, and bearings are optimized to reduce vibration, maintain a stable working temperature, and increase the lifespan of the entire transmission assembly.

Detailed structure of the 3-Stage Gearbox (2 UDL and 1 WPDX)

The 3-Stage Gearbox (2 UDL 1.5kW And 1 WPDX 80) is built from a 1.5kW 2Hp Mechanical Speed Variator combined with a 2-stage UDL 1.5kW – WPDX 80 gearbox, forming a stable and flexible multi-stage transmission assembly with the following structure:Structure of the Mechanical Speed Variator:

• Working radius changing disk assembly: Consists of conical disks combined with friction disks, self-adjusting their positions to produce stepless output speed.
• Transmission shaft assembly: The input shaft receives power from the motor, while the output shaft transmits the converted speed stably and accurately.
• Pressing force adjustment mechanism: A lever or knob controls the pressure on the disks, allowing fast or slow speed adjustment as required.
• Protective housing & bearing system: An outer metal casing protects components; bearings and oil seals ensure smooth movement, reduce wear, and increase equipment lifespan.

Structure of the 2-stage UDL 1.5kW – WPDX 80 gearbox:

• Stage 1: The Mechanical Speed Variator is responsible for changing the speed via a mechanical adjustment knob.
• Stage 2: The WPDX 80 worm gearbox serves as the final reduction stage, using an alloy worm and worm gear to provide strong transmission, low noise, and stable torque.
• The housings of the UDL and WPDX are made of cast iron or aluminum alloy, offering good heat dissipation and high durability.
• Planetary gears in the UDL and the worm-worm gear set in the WPDX are precision-machined, creating a wide speed reduction range and smooth movement.

Technical specifications of the 3-Stage Gearbox (2 UDL 1.5kW And 1 WPDX 80)

Below is detailed data on the 3-Stage Gearbox (2 UDL 1.5kW And 1 WPDX 80) for each internal combination, helping you easily cross-reference with design drawings:

Technical specifications of the UDL 1.5kW Mechanical Speed Variator

Specifically, the dimensional specifications of the UDL 1.5kW Mechanical Speed Variator are as follows:

Brand	ADTECH
Input/output shaft diameter	24mm
Key	8mm
Mounting type	Flange (B5)
Dimensions	528mm*300mm*270mm
Gear ratio	1/1.4 – 1/7

Technical specifications of the WPDX 80 gearbox

The standard measurements for shaft diameter and flange below for the WPDX 80 gearbox will help you prepare accurately for assembly and setup:

Size	80
Input shaft diameter	24mm
Output shaft diameter	32mm
Flange diameter	200mm
Dimensions	320mm x 225mm

Applications of the 3-stage gearbox (2 UDL 1.5kW and 1 WPDX 80)

This 3-stage gearbox (2 UDL 1.5kW and 1 WPDX 80) is connected to an electric motor, more specifically a 3-Phase Electric Motor 1.5kW 2Hp, with applications in industries such as:

• Industrial conveyors: transporting goods, components, and packaging at a stable speed.
• Medium-duty mixers – agitators – crushers: requiring high pulling force and low speed.
• Packaging – drying – food processing lines: uniform, precise movement, continuous operation.
• Automation machinery: requiring frequent speed variation while ensuring smoothness.
• Material handling, waste treatment, and recycling applications: durable running, suitable for harsh environments.

How to assemble 1 WPDX gearbox and 2 UDL Mechanical Speed Variators to form a 3-stage gearbox

Installing a 3-stage transmission system requires absolute precision to ensure coaxiality between shafts, helping the machine operate smoothly and extending equipment lifespan. Below is the technical procedure for assembling the transmission assembly from 2 UDL Mechanical Speed Variators and 1 WPDX 80 gearbox.Step 1: Connect 2 UDL Mechanical Speed Variators in series

• Determine the order: UDL unit 1 receives power directly from the motor, and UDL unit 2 is connected in series with UDL unit 1 to double the speed range adjustment capability (or increase torque depending on the design).
• Shaft connection: Connect the output shaft of UDL unit 1 to the input shaft of UDL unit 2 via the adapter flanges of both devices.

Step 2: Assemble the 2 UDL unit assembly with the WPDX 80 gearbox

• Intermediate connection: The output shaft of the second UDL unit will be connected to the input shaft of the WPDX 80 gearbox.
• Shaft coaxiality: Ensure that the output shaft of the UDL and the input shaft of the WPDX 80 lie on a perfectly straight line. Even a very small eccentricity will cause violent vibration and destroy bearings during operation.

Step 3: Inspection and completion

• Tighten bolts: Tighten all base bolts and flange bolts.
• Inspection: Perform a final check to ensure no components are loose.

Thanks to its sturdy cast housing, good heat dissipation, and smooth coordination between the speed variator and the worm gearbox, the 3-stage gearbox (2 UDL 1.5kW and 1 WPDX 80) ensures smoothness, minimizes noise, and maintains stable torque throughout operation.Thanh Thai Motor continuously updates new content to support customers in product research. You can follow the gearbox videos and compilation videos to quickly update the latest information.

Warranty, Shipping, and Commitment Policy at Thanh Thai Motor

When purchasing gearboxes at Thanh Thai Motor, you will receive benefits such as:

Warranty up to 24 months

Gearbox products at Thanh Thai Motor are covered by a genuine warranty for up to 24 months. Customers can be completely confident in using them with a clear, transparent, and prompt after-sales policy.

Nationwide Delivery

We support fast delivery to all provinces and cities nationwide. Wherever you are, products are guaranteed to arrive on time and safely.

Products meeting European quality standards with German technology

Gearboxes at Thanh Thai Motor are manufactured using advanced German technology, meeting European quality standards. Ensuring high durability and stable operation for extended periods.

Competitive prices, good discounts for dealers and bulk customers

Reasonable prices, many attractive offers for wholesale buyers and distribution agents. The more you buy, the higher the discount – optimizing profits for customers.

Full certification documents: CO, CQ,...

Each product comes with full Certificate of Origin (CO) and Certificate of Quality (CQ). This provides assurance for customers when using them in projects or constructions requiring technical documentation.

Contact for Purchase

Do you need advice on choosing the right gearbox for your needs? Contact Thanh Thai Motor immediately using the methods below:

• WhatsApp: +84966596219
• Email: codienthanhthai@gmail.com