3-Stage Gearbox (2 UDL 2.2kW And 1 NMRV 75)

The 3-stage gearbox (2 UDL 2.2kW and 1 NMRV 75) is a gearbox line combined by a mechanical speed variator (UDL) and a 2-stage gearbox to form a 3-stage gearbox, providing flexible speed adjustment and deep reduction within a single system. With a compact, durable, and easy-to-install design, the product is suitable for many industrial applications requiring low speed and strong pulling force.

General design of the 3-stage gearbox (2 UDL 2.2kW and 1 NMRV 75)

The 3-stage gearbox (2 UDL 2.2kW and 1 NMRV 75) features a powerful, stable transmission assembly that saves installation space. The outer casing is made of solid cast iron or cast aluminum, offering good load-bearing capacity and vibration reduction during operation. The input and output shafts, flanges, and mounting lugs are reasonably arranged, facilitating quick installation and connection with motors or other machinery. The oil seal, bearing, and ventilation slot systems are optimized for friction reduction, efficient heat dissipation, smooth operation, and extended service life of the entire transmission assembly.

Detailed structure of the 3-stage gearbox (2 UDL 2.2kW and 1 NMRV 75)

The 3-stage gearbox 2 UDL 2.2kW – NMRV 75 consists of a 2.2kW 3Hp motor speed variator combined with a 2-stage gearbox UDL 2.2kW – NMRV 75 to form a compact and flexible 3-stage transmission system structured as follows:

Speed variator structure:

• Cone-friction disc assembly: The cone discs and friction discs combine to change the contact radius, creating a stepless speed range and smooth operation.
• Drive shaft: The input shaft receives torque from the motor; the output shaft transmits the evenly and stably varied speed.
• Handwheel adjustment mechanism: The lever or knob exerts force on the discs, allowing flexible speed increase and decrease according to operational needs.
• Housing and shaft support system: Cast iron/aluminum housing protects the mechanism; bearings and oil seals keep movement smooth, reduce vibration, and extend equipment life.

Structure of the 2-stage gearbox UDL 2.2kW – NMRV 75:

• Stage 1: The UDL mechanical speed variator is precisely meshed, helping to create a wide transmission ratio and smooth speed changes.
• Stage 2: The NMRV 75 gearbox consists of a steel worm and a bronze worm gear, creating a large transmission ratio and high torque.
• Similar structure to the first UDL stage, comprising a system of discs, rollers, and concentric shafts. It receives drive from UDL 1, further expanding the speed variation range and stabilizing speed before entering the NMRV stage.
• Hardened steel worm, copper alloy worm gear, heavy-duty bearings, and cast iron/aluminum housing. It is responsible for deep reduction, 90° rotation direction change, and high output torque delivery.
• Includes flexible couplings linking the stages, an intermediate shaft mounted on high-quality bearings, and a common base to maintain concentricity, reduce vibration, and increase the durability of the entire system.

Technical specifications of the 3-stage gearbox (2 UDL 2.2kW and 1 NMRV 75)

The 3-stage gearbox consists of two UDL 2.2kW mechanical speed variators combined with an NMRV 75 gearbox. Below are the technical specifications of each component in the transmission assembly.

Technical specifications of the UDL 2.2kW 3Hp mechanical speed variator

The technical specifications of the UDL 2.2kW 3Hp mechanical speed variator are presented below, including dimensions, shaft diameter, transmission ratio, and adjustment speed range.

Technical specifications of the NMRV 75 gearbox

The NMRV 75 gearbox has the following basic technical specifications, including dimensions, input shaft diameter, output shaft diameter, and product installation parameters.

Applications of the 3-stage gearbox (2 UDL 2.2kW and 1 NMRV 75)

The 3-stage gearbox (2 UDL 2.2kW and 1 NMRV 75) is connected to an electric motor, more specifically a 3-phase electric motor – 3-phase electric motor 2.2kW 3Hp, with applications in industries such as:

• Provides high torque and stable speed for factory material handling systems.
• Ensures low, uniform rotational speed and good load-bearing capacity in the chemical, food, and material industries.
• Allows flexible speed adjustment to meet various operating cycles in production lines.
• Generates strong pulling force, suitable for presses, saws, crushers, or equipment operating continuously under heavy loads.

The 3-stage gearbox (2 UDL 2.2kW and 1 NMRV 75) is suitable for systems requiring flexible speed adjustment combined with high reduction capabilities. To better understand the structure, operating principle, and installation method, you can refer to the gearbox videos and compilation videos produced by Thanh Thai Motor, helping you choose the right product for your application needs.

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