80PLF5 Planetary Gearbox 1/5

Detailed Product Review

The 80PLF5 Planetary Gearbox, offered by Mermak CNC, is a mechanical power transmission component designed for engineering applications in industrial automation systems that require high precision, torque density, and stability. This gearbox utilizes a planetary gear mechanism to transmit the high-speed, relatively low-torque rotational motion from a motor’s input shaft to the output shaft, reducing the speed by a ratio of 1/5 and increasing the torque by 5 times. This principle optimizes the system’s mechanical power transmission efficiency and load-carrying capacity, while also reducing motor inertia, enabling more dynamic and controlled motion capabilities. The planetary gear arrangement consists of a central sun gear, surrounding planet gears, and an outer ring gear; this configuration distributes the load across multiple gears, providing exceptional load-carrying capacity, high rigidity, and low backlash values despite its compact size. It enhances overall system performance by ensuring the motor operates within its optimal speed range, particularly in applications demanding precise positioning, high dynamic response, and continuous operation.

The 80PLF5 series features a high-strength aluminum alloy housing, proven reliable in demanding industrial conditions. This material choice optimizes the gearbox’s weight while guaranteeing high impact and vibration resistance. The internal gears are manufactured from special alloy steel and undergo heat treatment processes to maximize surface hardness and wear resistance. This structural integrity ensures the gearbox offers a long service life and maintenance-free operation. The gearbox’s maximum backlash value of ≤ 5 arcmin is critical for maintaining repeatability and positioning accuracy in applications such as CNC machines, robotic systems, and precision positioning platforms. Its high efficiency rate (≥ 95%) minimizes energy losses, reducing operating costs and contributing to sustainable production processes. The IP65 protection class provides an effective barrier against dust and water jets, allowing the gearbox to operate reliably even in humid, dusty, or dirty environments. With an 80×80 mm flange size and 14/19 mm shaft diameter options, it offers direct compatibility with NEMA34 standard step and servo motors, enabling easy and rapid integration across a wide range of applications, thus providing flexibility and cost-effectiveness in engineering projects. These features are designed to enhance machine performance and ensure uninterrupted production processes in line with Industry 4.0 principles.

High Torque Density and Transmission Capacity: The 80PLF5 Planetary Gearbox offers superior torque transmission capacity despite its compact external dimensions, leveraging the inherent advantages of the planetary gear arrangement. This structural design distributes the load across multiple gears, reducing stress on any single gear pair and allowing higher torques to be transmitted within a smaller volume. The 1/5 reduction ratio multiplies the torque from the input motor by five, enabling performance beyond the motor’s nominal torque capacity in demanding industrial scenarios such as lifting heavy loads, accelerating high-inertia systems, or applications requiring high cutting forces. This feature provides system designers with the flexibility to use smaller, more cost-effective motors or to enhance the performance of existing motors.

Ultra-Low Backlash Value: The gearbox’s maximum backlash value of ≤ 5 arcmin is a critical technical advantage for applications requiring precise motion control. Backlash is the angular error caused by the clearance between gears, leading to a delayed response of the output shaft to the input shaft during direction changes. The 80PLF5 minimizes this value through optimized gear profiles and manufacturing tolerances. This low backlash maximizes positioning accuracy and repeatability in applications such as tool path accuracy in CNC machines, repeatable positioning in robotic arms, and precise machining in laser cutting/welding machines. Consequently, machining quality improves, scrap rates decrease, and the reliability of production processes increases.

Wide Motor Compatibility and Modular Integration: The 80PLF5 Planetary Gearbox is designed with an 80×80 mm flange size and 14 mm or 19 mm shaft diameter options, conforming to industrial standards. These features ensure direct mechanical compatibility with NEMA34 standard step and servo motors. The modular design approach allows for seamless integration with different motor brands and models, enabling system designers and integrators to utilize their existing motor inventory or preferred motor solutions. This structure simplifies the installation process, reducing setup time and engineering costs. Furthermore, the flexible shaft diameter compatibility facilitates adaptation to different motor shaft configurations, increasing the gearbox’s usability across a broad spectrum of applications.

Technical Specifications and Capacity

Mermak CNC has 16 years of experience in industrial automation. Our products are stocked and ready for shipment from our factory and warehouse in Ankara Uzay Sanayi. We ensure that website stock quantities and prices are up-to-date. Stocked products are dispatched directly from our warehouse, eliminating production waiting times. We provide careful packaging, meticulous invoice and document handling, and work with reliable logistics partners. The Mermak team closely monitors the shipment process. Upon request, we can arrange product videos or factory viewings via WhatsApp or other contact channels. We proudly supply our products to international markets, including the United Kingdom, United States, Canada, Australia, Ireland, New Zealand, and South Africa, alongside similar countries and global markets.