PLF Standard Planetary Gearbox ±3 Arcmin Backlash Reliable

PLF standard planetary gearbox, silent planetary gearbox (~62 dB)

Product Overview

The PLF standard planetary gearbox is an advanced industrial gearbox engineered for high-performance motion control, precise positioning, and reliable torque transmission. Designed for modern machinery, it converts high-speed motor output into low-speed, high-torque performance, making it ideal for renewable energy equipment, packaging machinery, CNC systems, and automation applications.

Planetary gear reducers, also known as epicyclic gearboxes, are widely recognized for their compact size, high efficiency, and superior load-carrying capacity. The PLF series combines these advantages with innovative design features such as helical gears, integrated ball bearings, and high-viscosity synthetic grease lubrication, ensuring smooth, quiet operation and minimal maintenance.

The PLF standard planetary gearbox is specifically tailored for applications that require consistent, high-torque output with minimal backlash. With rated output torque ranging from 14 Nm to 423 Nm and gear ratios from 3:1 to 100:1, it delivers customizable performance to match the needs of demanding industrial systems. Its IP65 protection class ensures safe operation in harsh industrial environments, while the noise level as low as 62 dB(A) at 3000 rpm makes it suitable for noise-sensitive operations.

The combination of high rigidity, low backlash, and precise motion control makes the PLF standard planetary gearbox a perfect choice for robotic arms, CNC machines, automated packaging systems, and renewable energy applications. Planetary gear systems like the PLF are frequently referenced in technical literature for their efficiency, reliability, and compact design, as highlighted by SKF industrial solutions.

Whether your application requires high-speed conversion to high-torque output, precision motion, or robust mechanical performance, the PLF planetary reducer provides a versatile and durable solution for modern industrial systems. Its design simplifies installation and maintenance, making it an efficient, long-lasting, and cost-effective gearbox solution.

Key Features

Silent Operation
The PLF standard planetary gearbox employs helical gears to ensure smooth and quiet operation. This significantly reduces mechanical noise, which is critical for laboratories, medical equipment, and packaging lines.
High Precision
With backlash as low as 3 arcminutes, the PLF standard planetary gearbox offers highly accurate positioning, meeting the stringent requirements of CNC machinery, robotics, and automation systems.
High Rigidity and High Torque
Equipped with integrated ball bearings, the PLF reducer delivers exceptional rigidity and high torque output. Depending on the model and gear ratio, it can provide torque from 14 Nm to over 400 Nm, making it suitable for heavy-duty industrial machinery.
Flexible Mounting Options
The PLF standard planetary gearbox supports both flange and connector mounting, allowing direct integration with motors for compact, easy-to-install solutions.
Leak-Free Lubrication
The gearbox uses high-viscosity synthetic grease, preventing leakage and ensuring reliable lubrication over its service life. This feature reduces maintenance demands and improves system cleanliness.
Maintenance-Free Operation
Designed for long-term durability, the PLF standard planetary gearbox eliminates the need for grease replacement, reducing downtime and maintenance costs while simplifying installation. Learn more about planetary gear design from Siemens Drive Technology.

Specs	Unit	Stage	Ratio	PLF040	PLF060	PLF080	PLF090	PLF120	PLF160
Rated Output Torque / T2N	Nm	1	3	14	28	105	113	150	323
Rated Output Torque / T2N	Nm	1	4	15	38	108	115	160	364
Rated Output Torque / T2N	Nm	1	5	17	40	112	118	160	423
Rated Output Torque / T2N	Nm	1	7	13	35	105	110	149	358
Rated Output Torque / T2N	Nm	1	10	12	25	100	105	141	293
Rated Output Torque / T2N	Nm	2	15	14	28	105	113	150	323
Rated Output Torque / T2N	Nm	2	20	15	38	108	120	160	364
Rated Output Torque / T2N	Nm	2	25	17	40	112	118	160	423
Rated Output Torque / T2N	Nm	2	30	13	28	105	113	150	323
Rated Output Torque / T2N	Nm	2	35	17	35	112	118	160	358
Rated Output Torque / T2N	Nm	2	40	12	38	110	115	146	364
Rated Output Torque / T2N	Nm	2	50	15	40	108	118	160	423
Rated Output Torque / T2N	Nm	2	70	13	35	105	110	149	358
Rated Output Torque / T2N	Nm	2	100	12	25	100	110	141	293
Max Output Torque / T2max¹	Nm	1,2	3-100	3×Nominal Output Torque	–	–	–	–	–
Rated Input Speed / n1N	rpm	1,2	3-100	3000	3000	3000	3000	3000	2500
Max Input Speed / n1m	rpm	1,2	3-100	5000	5000	5000	5000	5000	3600
Precision Backlash P1	arcmin	1	3-10	≤6	≤6	≤6	≤6	≤6	≤6
Precision Backlash P1	arcmin	2	12-100	≤8	≤8	≤8	≤8	≤8	≤8
Standard Backlash P2	arcmin	1	3-10	≤7	≤7	≤7	≤7	≤7	≤7
Standard Backlash P2	arcmin	2	12-100	≤10	≤10	≤10	≤10	≤10	≤10
Torsional Rigidity	Nm/arcmin	1,2	3-100	3	6	12	12	22	50
Max Radial Force / Frmax²	N	1,2	3-100	320	460	1300	1300	3200	6520
Max Axial Force / Famax²	N	1,2	3-100	160	230	660	660	1600	3260
Service Life	hr	1,2	3-100	20000h	–	–	–	–	–
Efficiency / η	%	1	3-10	≥97%	–	–	–	–	–
Efficiency / η	%	2	15-100	≥94%	–	–	–	–	–
Weight	kg	1	3-10	0.73	0.99	2.1	2.5	4.98	18.2
Weight	kg	2	15-100	1.05	1.46	3.2	3.5	6.92	24.9
Operating Temperature	℃	1,2	3-100	(-25℃~+90℃)	–	–	–	–	–
Lubrication	–	1,2	3-100	Synthetic Grease	–	–	–	–	–
Protection Class	–	1,2	3-100	IP65	–	–	–	–	–
Mounting Position	–	1,2	3-100	Any Direction	–	–	–	–	–
Noise Level (n1=3000rpm, No load)	dB(A)	1,2	3-100	≤62	≤63	≤65	≤65	≤67	≤68
Moment of Inertia	kg·cm²	1	3	0.03	0.16	0.61	0.61	3.25	9.21
Moment of Inertia	kg·cm²	1	4	0.03	0.14	0.48	0.48	2.74	7.54
Moment of Inertia	kg·cm²	1	5	0.03	0.13	0.47	0.47	2.71	7.42
Moment of Inertia	kg·cm²	1	7	0.03	0.13	0.45	0.45	2.65	7.25
Moment of Inertia	kg·cm²	1	10	0.03	0.13	0.45	0.45	2.62	7.14
Moment of Inertia	kg·cm²	2	12-40	0.03	0.13	0.44	0.44	2.58	7.07
Moment of Inertia	kg·cm²	2	50-100	0.03	0.13	0.44	0.44	2.57	7.04

PLF Standard Type Planetary Gearbox Dimension Stage 1

PLF Standard Type Planetary Gearbox Dimension Stage 2

PLF Reducer Technical Datasheet (PDF)

Installation & Maintenance Manual (PDF)

CAD Models & Dimensions (ZIP)

Applications

Renewable Energy Systems: In wind turbines, solar trackers, and other renewable energy equipment, the PLF reducer converts high-speed motor output to low-speed, high-torque performance, meeting the demands of large torque loads and precise movement.
Packaging Machinery: The PLF planetary reducer provides efficient, precise, and reliable power for automated packaging lines. Its high-speed, high-torque capability ensures smooth operation, accurate product handling, and energy-efficient performance.
CNC Equipment and Automation: The PLF series is ideal for numerical control machines and automated systems, offering high precision, stability, and efficient power transmission. Its low backlash ensures micro-positioning accuracy, essential for milling, cutting, and robotic assembly operations. Explore insights on industrial automation from ABB Robotics.

Contact Us

Interested in this PLF Standard Planetary Gear Reducer? Contact our engineers for more details.

Please enable JavaScript in your browser to submit the form.kadence-form-1449_c17edd-ad .kadence-blocks-form-field.kb-submit-field { display: none; }