3-Stage Gearbox (2 UDL 0.8kW And 1 WPDX 70)

The 3-Stage Gearbox (2 UDL 0.8kW and 1 WPDX 70) is a gearbox line combined from a 2-stage gearbox and an additional mechanical speed variator to form a 3-stage gearbox, designed to provide stepless speed control, stable speed, and large torque at low speed, helping operators customize stepless rotational speed smoothly, while the WPDX 70 maintains final reduction and torque stability. With a compact design suitable for many industrial sectors requiring precision and durability.

Overview of the 3-Stage Gearbox (2 UDL 0.8kW and 1 WPDX 70)

The 3-stage gearbox (2 UDL 0.8kW and 1 WPDX 70) features a multi-stage drive structure creating a deep reduction system with high stability, forming an efficient drive system that saves installation space. The outer casing is made of monolithic cast iron or cast aluminum, ensuring good load-bearing capacity, anti-vibration, and impact resistance in industrial environments. Output shafts, connection flanges, and maintenance covers are reasonably arranged, facilitating easy installation, operation, and maintenance. The integrated ventilation system and bearings help dissipate heat effectively, reduce friction, and extend the service life of the entire gearbox.

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

The 3-stage gearbox (2 UDL 0.8kW and 1 WPDX 70) is formed by combining a 0.8kW 1Hp motor speed variator with a 2-stage gearbox UDL 0.8kW – WPDX 70, with the following structure:

Variator structure:

• Friction discs – cone discs: Change the contact position to create a stepless speed range.
• Input shaft – output shaft: The input shaft receives power from the motor, and the output shaft transmits the stably adjusted speed.
• Adjustment mechanism: A dial knob or lever controls the contact pressure between the discs, adjusting speed up or down.
• Protective housing & bearings: Cast iron/aluminum housing protects the mechanism; bearings and oil seals reduce friction for smooth and durable operation.

Structure of the 2-stage gearbox UDL 0.8kW – WPDX 70:

• Stage 1 – Worm gearbox, specifically the WPDX 70 worm gearbox with a steel worm and bronze worm wheel, creates a large gear ratio, providing high and stable torque.
• Stage 2 – UDL variator: Pulley system or bevel gears adjust the output speed smoothly, increasing operational accuracy.
• Shaft and bearing system: Includes input shaft, intermediate shaft, and output shaft along with load-bearing bearings, helping transmit force evenly and reduce vibration during operation.
• Housing & protective frame: Monolithic cast iron/aluminum housing protects the entire mechanism, offering good load-bearing capacity, impact resistance, and extended product lifespan

Specifications of the 3-Stage Gearbox (2 UDL 0.8kW and 1 WPDX 70)

For the drive system to operate synchronously and accurately meet load requirements, understanding mechanical specifications is extremely important. Below is the detailed specification data for each device constituting this 3-stage gearbox system.

Specifications of the UDL 0.8kW motor speed variator

Undertaking the task of smooth stepless speed fine-tuning for the entire system, the UDL 0.8kW mechanical speed variator is designed with a standardized synchronous flange and flexible gear ratio range. Specifically as follows:

Specifications of WPDX 70 gearbox

To maintain stability for all pulling forces at extremely low speeds, the WPDX 70 is built with sturdy shaft and flange dimensions, perfectly compatible with the front variator assembly:

Applications of the 3-Stage Gearbox (2 UDL 0.8kW and 1 WPDX 70)

This 3-stage gearbox (2 UDL 0.8kW and 1 WPDX 70) is connected to an electric motor, more specifically a 3-phase electric motor – 3-phase electric motor 0.8kW 1Hp, with applications in industries such:

• Industrial conveyors transporting components and materials stably.
• Medium-load mixers, agitators, and crushers requiring high torque.
• Packaging, drying, and food processing lines requiring continuous operation.
• Automation machinery requiring flexible speed changes while maintaining smooth operation.
• Material handling, waste treatment, and recycling systems in dusty or humid environments.

How to Install the WPDX Gearbox and 2 UDL Mechanical Speed Variators to Form a 3-Stage Gearbox

Below is the technically standard assembly process in order: connect the 2 UDL units first, then install this UDL assembly onto the WPDX 70 gearbox.

• Preparation before assembly: Ensure that the 2 UDL variators (B5 flange), 1 WPDX 70 gearbox, and accessories (keys, bolts, washers) are completely intact and of correct synchronous dimensions.
• Connecting the 2 UDL mechanical speed variators together: Place the first UDL unit so that its output flange faces the input flange of the second UDL unit. Place the key into the keyway on the output shaft of UDL 1. Slowly push this shaft into the female shaft hole (power receiving) of UDL 2. Ensure that the shaft is inserted fully and gently; absolutely do not use a hammer to pound hard, which would damage the internal friction discs. Tighten the fixing bolts.
• Installing the 2-UDL assembly onto the WPDX 70 gearbox: Bring the newly assembled 2-UDL unit close to the input flange of the WPDX 70 gearbox. Pay attention to the orientation of the speed control dial on the UDL assembly so that it is in an ergonomic position for the operator and does not obstruct space when installed on the machine base.

The 3-stage gearbox (2 UDL 0.8kW and 1 WPDX 70) delivers superior speed control thanks to its advantageous multi-stage drive structure. The device thoroughly overcomes low-speed torque drop while significantly saving installation space.

Referring to additional actual images and videos will help you evaluate the product more objectively. Visit the gearbox videos and compilation videos to access more content shared by Thanh Thai Motor.

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