3-Stage Gearbox (2 UDL 1.5kW And 1 WPDX 100)

The 3-Stage Gearbox (2 UDL 1.5kW And 1 WPDX 100) is a gearbox line combined by a 2-stage gearbox and an additional mechanical speed variator (UDL) to form a 3-stage gearbox, creating a powerful transmission assembly with deep reduction capability and stable torque maintenance. Thanks to its sturdy multi-stage design, the device operates durably, handles heavy loads well, and is suitable for industrial applications requiring low speed yet high pulling force. This is an ideal choice for conveyor systems, mixers, agitators, and continuous production lines.

Overview design of the 3-Stage Gearbox (2 UDL 1.5kW And 1 WPDX 100)

The 3-Stage Gearbox (2 UDL 1.5kW And 1 WPDX 100) is a powerful, stable transmission system that saves installation space. The outer casing is made of cast iron or die-cast aluminum, with a monolithic design to withstand high loads, reduce operational vibration, and protect the internal mechanisms. Output shafts, flanges, and mounting brackets are reasonably arranged, facilitating installation and connection with motors or other devices. The oil seal system, bearings, and heat dissipation slots are intelligently integrated, helping to dissipate heat effectively, reduce friction, maintain smooth operation, and extend the service life of the entire transmission assembly.

Structure of the 3-stage gearbox (2 UDL and 1 WPDX)

The 3-Stage Gearbox (2 UDL 1.5kW And 1 WPDX 100) is formed by combining a 1.5kW 2Hp mechanical speed variator with a UDL 1.5kW – WPDX 100 2-stage gearbox to create a stable and flexible multi-stage transmission assembly with the following structure:

Structure of the speed variator:

• Friction discs – cone discs: Change contact to adjust speed steplessly.
• Input shaft – output shaft: Input shaft receives power from the motor; output shaft transmits the adjusted speed.
• Adjustment mechanism: Lever or control knob changes the pressing force on the discs, controlling fast – slow speeds.
• Casing & bearings: Casing protects internal components; bearings and oil seals reduce friction, increasing equipment lifespan.

Structure of the gearbox:

• Stage 1: UDL mechanical speed variator with cast iron or aluminum casing protecting the mechanism; bearings and oil seals ensure smooth operation, reduce friction, and increase lifespan.
• Stage 2: Worm gearbox, specifically the WPDX worm gearbox featuring hard steel, bronze worm gear, heat-dissipating cast iron housing, and heavy-duty bearings, responsible for deep speed reduction and changing the transmission direction by 90°.
• Active – passive friction discs, roller assembly changing the working radius, and speed adjustment mechanism, creating the first continuously adjustable speed reduction stage.

Specifications of the 3-Stage Gearbox (2 UDL 1.5kW And 1 WPDX 100)

To better understand the operational capability and compatibility of this 3-stage gearbox system with production lines, let us dive into the detailed specification table of each component forming the equipment assembly below.

Specifications of the UDL 1.5kW mechanical speed variator

The UDL 1.5kW plays a role in flexible speed control, undertaking deep speed reduction and torque redirection. Below are the specific parameters:

Specifications of WPDX 100 gearbox

Detailed parameters regarding input/output shaft dimensions, flanges, and transmission ratios of the WPDX 100 gearbox help users easily align and select concentric installation options, ensuring the system achieves optimal transmission efficiency before actual operation.

Applications of the 3-stage gearbox (2 UDL 1.5kW and 1 WPDX 100)

This 3-stage gearbox is connected to an electric motor, more specifically a 3-Phase Electric Motor – a 3-phase electric motor 1.5kW 2Hp, and has applications in industries such:

• Used for flexible speed control and generating high torque for continuous goods transportation lines.
• Provides stable low speed, helping to increase mixing efficiency in the food, chemical, and material industries.
• Supports precise operation, ensuring a steady operating rhythm for automatic packaging machines.
• Generates strong pulling force, suitable for planers, saws, presses, or equipment requiring high torque and long-term operation.

How to assemble the WPDX gearbox and 2 UDL mechanical speed variators into a 3-stage gearbox

The assembly process of the WPDX gearbox and 2 UDL mechanical speed variators to form a 3-stage gearbox is divided into 2 core stages: coupling the UDL pair to create a dual speed adjustment stage range, then connecting this UDL assembly to the WPDX gearbox to complete the heavy-duty 3-stage speed reduction system.

Step 1: Connecting two UDL mechanical speed variators together

This stage creates the central variable speed assembly before transmitting power to the main gearbox.

• Shaft cleaning and inspection: Wipe clean the anti-rust oil layer on the output shaft of the first UDL unit and the shaft bore (hollow shaft/flange) of the second UDL unit. Ensure that the output shaft and input shaft dimensions are identical (both are 24mm).
• Key installation: Firmly drive the key into the keyway of the output shaft of the first UDL unit.
• Connection operation: Align the keyway of the second UDL unit with the key on the shaft of the first UDL unit. Slowly push the two UDL units together horizontally.
• Flange tightening: When the two B5 flanges are tightly pressed together, insert bolts and tighten them evenly in a star pattern (cross-tightening) so that the pressure is evenly distributed, avoiding flange distortion that could cause oil leaks later.

Step 2: Installing the 2-UDL assembly into the WPDX 100 gearbox

After obtaining the complete 2-stage speed variator assembly, the next step is to connect it with the worm gearbox to create the 3rd speed reduction stage.

• Positioning and shaft engagement: Lift the 2-UDL assembly, aligning the output shaft of the UDL assembly to fully engage with the hollow shaft of the WPDX 100.
• System fixation: Securely tighten the bolts connecting the UDL assembly flange and the WPDX flange.

The 3-Stage Gearbox (2 UDL 1.5kW And 1 WPDX 100) with outstanding advantages in natural heat dissipation through the aluminum/cast iron housing, specialized heavy-duty bearings, and anti-leakage oil seals, this product line deserves to be a top investment for the food, chemical, and material industries.

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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