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Planetary Gearbox Reducer

Experience unparalleled power transmission solutions with our versatile planetary gearboxes, expertly tailored for diverse applications including wheel drive, winch drive, , and slewing drive systems. Built with precision engineering and robust construction, our gearboxes deliver dependable torque multiplication, minimized backlash, and enhanced load capacity.

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Planetary Gearbox Expert

HZPT has many years of experience in planetary gearboxes, we produce very high-quality planetary gearboxes at very competitive prices. Planetary speed reducer gearboxes have been designed for different transmissions. The power is transmitted from the motor to the sun gearbox. The sun gearbox drives three planetary gearboxes, which are contained within an internal toothed ring gearbox. En is mounted on the planetary carrier. The planetary carrier is part of the output . So when the sun gearbox rotates, it drives the three planetary gearboxes inside the ring gearbox. As planetary gearbox rotates with carries and automatically the highest torque and stiffness for a given envelope. The other significant advantages are simple and efficient lubrication and a balanced system at high speeds. The balanced planetary kinematics and the associated load sharing make the high-speed planetary gearbox truly ideal for servo applications. The modular concept allows us to offer a particularly short delivery time for gearbox with a constantly high standard of quality whether your applications require a reducer for the motor.
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Brands That We Can Replace

Our planetary gearboxes, wheel drive gearboxes, winch drive gearboxes, and track drive gearboxes are designed with identical mounting dimensions to those of these well-known brands, ensuring highly comparable performance parameters, thereby making them ideal substitutes for these branded products. Please note that we do not sell products under these referenced brand names; the mention of specific models is purely for customers' convenience in selection and specification purposes.

If customization is required, feel free to reach out to us. We have a team of professional engineers who are ready to provide you with the highest quality customized solutions tailored to your unique requirements.

Brevini Riduttori

    Trasmital Bonfiglioli

    • 300L Series: 300L1, 300L2, 300L3, 300L4
    • 301L Series: 301L1, 301L2, 301L3,  301L4
    • 303L Series: 303L1, 303L2, 303L3,  303L4
    • 305L series: 305L1, 305L2, 305L3,  305L4
    • 306L series: 306L1, 306L2, 306L3,  306L4
    • 307L series: 307L1, 307L2, 307L3,  307L4
    • 309L series: 309L1, 309L2, 309L3,  309L4
    • 310L series: 310L1, 310L2, 310L3,  310L4
    • 311L series: 311L1, 311L2, 311L3,  311L4
    • 313L series: 313L1, 313L2, 313L3,  313L4
    • 315L series: 315L1, 315L2, 315L3,  315L4
    • 316L series: 316L1, 316L2, 316L3,  316L4
    • 317L series: 317L1, 317L2, 317L3,  317L4
    • 318L series: 318L1, 318L2, 318L3,  318L4
    • 319L series: 319L1, 319L2, 319L3,  319L4
    • 321L series: 321L1, 321L2, 321L3,  321L4
    • 700C Series: 700C1H 701C1 703C2H 705C2H 706C3H 707C3B 709C3B 710C3B 711C3B 715C3B 716C3B 717C3H 718C3H 720C3H
    • 300R Series: 300R2, 300R3, 300R4
    • 301R Series: 301R2, 301R3,  301R4
    • 303R Series: 303R2, 303R3,  303R4
    • 305R series: 305R2, 305R3,  305R4
    • 306R series: 306R2, 306R3,  306R4
    • 307R series: 307R2, 307R3,  307R4
    • 309R series: 309R2, 309R3,  309R4
    • 310R series: 310R2, 310R3,  310R4
    • 311R series: 311R2, 311R3,  311R4
    • 313R series: 313R2, 313R3,  313R4
    • 315R series: 315R3,  315R4
    • 316R series: 316R3,  316R4
    • 317R series: 317R3,  317R4
    • 318R series: 318R4
    • 319R series: 319R4
    • 321R series: 321R4
    • 700T Series: 700T1F 701T1F 703T2F 705T2F 705T2L 706T2N 707T2N 709T2N 710T2N 711T2C 711T2F 713T3N 715T3N
    • 600 Series: 601R 603W 605W 606W 609W 611W 613W  615W

      Comer Industries

      • PGA Series Auger Drive Planetary Gearbox
      • PG Series Feed Mixer Planetary Gearbox
      • PGR-T Track Drive Planetary Gearbox
      • PGR-W
      • PGR-H Winch Drive Planetary Gearbox

      Reggiana Riduttori

      • RR Series Linear and Angular Planetary Gearbox


      • R2E Series Heavy Duty Planetary Reducer 


      • ZHP Series Planetary Slewing Gear Gearbox


      How was a High-quality Planetary Gearbox Born?

      ① Raw Material Preparation

      Procurement and pretreatment: Select high-quality metal raw materials, such as cast iron, alloy steel, stainless steel, etc. After strict quality inspection, surface impurities are removed, and the parts are preliminarily cut into a shape close to the blank according to the required shape and size.

      ② Forging/Casting

      Forging forming: planetary carrier, sun gear, inner gear ring, etc., usually using forging technology. After heating the metal at high temperature, it is hammered or pressed to form the desired preliminary shape.
      Casting molding: For some large or complex structural components, casting technology may be used. 

      ③ Rough Machining

      Turning, milling, and drilling: After completing the basic forming, the rough parts are rough machined using a CNC machine tool to remove most of the excess, forming the basic contours and structural features of various components of the gearbox, including inner and outer cylindrical surfaces, planes, keyways, threaded holes, etc.

      ④ First Heat Treatment

      Normalization, annealing, or tempering: Based on the material properties and subsequent processing requirements of the parts, appropriate heat treatment processes are carried out on the rough machined parts to improve the internal structure of the metal, adjust hardness and toughness, and facilitate subsequent mechanical processing.

      ⑤ Precision Processing

      Grinding, honing, and gear hobbing: precision machining of heat-treated parts to ensure that the tooth shape, accuracy, and surface roughness of the meet the design requirements. The gear processing of planetary gears usually includes hobbing, shaving, or slotting, etc; The planetary carrier requires precision grinding and leveling treatment.

      ⑥ Second heat treatment

      Carburization quenching, nitriding, or surface hardening treatment: For contact stress areas such as gears, surface strengthening treatment is carried out according to design requirements to improve wear resistance and hardness, and prevent early wear and fatigue failure caused by long-term operation.

      ⑦ Secondary precision machining

      Grinding, polishing, and ultra precision machining: further improve the accuracy and surface quality of gears and other key components, reduce micro wear and noise, and improve overall transmission efficiency and service life.

      ⑧ Inspection stage

      Dimensional inspection, hardness testing, and non-destructive testing: Strictly control the quality of all finished parts, including dimensional accuracy, surface quality, hardness testing, as well as necessary non-destructive testing such as magnetic particle testing, ultrasonic testing, etc., to ensure that the parts are free of cracks, inclusions, and other defects.

      ⑨ Assembly stage

      Cleaning, applying lubricating grease, and assembly: After cleaning the parts, apply special lubricating oil or grease in a suitable position, and then assemble them in an orderly manner according to the design drawings and technical requirements to ensure the correct meshing of the gear pair and the correct installation of bearings and seals.

      ⑩ Testing Phase

      Empty load test run, load test, and performance test: The assembled planetary gearbox must undergo strict pre factory testing, including empty load operation inspection, noise test, vibration test, and performance test under load, to ensure that it meets the design requirements and can operate stably for a long time under the predetermined working conditions.

      Realistic View of Our Factory

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      fábrica de reductores planetarios
      fábrica de reductores planetarios
      fábrica de reductores planetarios
      fábrica de reductores planetarios
      fábrica de reductores planetarios
      fábrica de reductores planetarios
      fábrica de reductores planetarios
      fábrica de reductores planetarios
      fábrica de reductores planetarios