Kgg Precision Planetary Roller Actuator for Humanoid Robots (PRMC30 Series)

Product Description

Product Description

KGG High Quality Planetary Roller Linear Actuator  - PRMC 30/50/60 Series

Our Planetary Roller Linear Actuator - PRMC delivers high-precision linear motion for demanding applications in heavy industrial automation, aerospace, and high-performance robotics, etc. Our advanced planetary roller screw mechanism provides superior load capacity, exceptional positioning accuracy, and excellent energy efficiency. Built for longevity, it ensures reliable performance in extreme high-load, high-speed, and harsh industrial environments.

Specification

Advantages

Overview and Compact Design
The PRMC series represents a high-performance line of Planetary Roller Linear Actuators, engineered for ultimate precision, durability, and power density. This series, encompassing models like the compact PRMC30 (Ø30x138.5±1mm), is designed to deliver robust performance in space-constrained applications. The fundamental planetary roller screw mechanism ensures superior mechanical advantages within a minimal footprint, making the entire PRMC family an ideal solution for advanced automation and motion control systems.
 
Superior Load Capacity and Long Service Life
At the heart of every PRMC actuator is the planetary roller screw technology, which fundamentally outperforms traditional ball screws. By distributing loads across numerous contact lines via threaded rollers, the PRMC series achieves exceptional load-bearing capacity and impact resistance. According to Hertzian contact stress analysis, this design enables PRMC actuators to withstand static loads up to three times greater and achieve an operational life approximately 1.5 times longer than comparable ball screw actuators, ensuring unmatched reliability in the most demanding cycles.

High Speed, Precision, and Stiffness

The PRMC series excels in dynamic performance, capable of achieving high rotational speeds and accelerations. A key advantage is the flexible lead design, which is a function of pitch and can be specified as very fine (under 0.5mm) or as custom integer/fractional values without geometric compromise. This flexibility often eliminates the need for external reduction gearing and allows for precise positional control. Furthermore, the multiple, continuous contact lines within the mechanism substantially increase axial stiffness and rigidity, minimizing deflection under load for exceptional accuracy and repeatability.

Application
The robust design and high performance of the PRMC series make it suitable for a wide range of demanding applications. It is extensively used in critical fields such as industrial robotics, high-speed CNC machine tools, semiconductor manufacturing equipment, and the aerospace and defense industries (including aircraft, satellites, and tactical systems).

Drawings & Dimensions

Detailed CAD drawings and dimensional diagrams are available for download here or upon inquiry.
Our engineering team can provide tailored designs to meet specific project requirements.

Factory Detailed Processing Photos

Finished Product Photos

Company Profile

Shanghai KGG Robots Co., Ltd.

Shanghai KGG Robotos Co., Ltd. is a leading Chinese manufacturer of construction equipment with over 16 years of expertise. Certified with ISO 9001, ISO 14001, and IATF 16949, we export to 30+ countries, offering reliable machinery backed by R&D innovation and strict quality control.

Why Choose Us?

Our Main Products

Self-branded
OEM/ODM capabilities
High repeat buyers choice
Customization from designs
Competitive pricing & bulk discounts
Fast shipping & customs clearance support

Ball Screw
Planetary Roller Screw
GSSD Stepper Motor
PT Variable Pitch Slide
Gearbox
Linear Actuator

Certifications

FAQ

Q: Why choose KGG China?
A: Over the past 17 years, KGG has always insisted that "products and services" start from Japanese industry standards, taking Taiwan standards as the bottom line, actively invest in the development of new transmission components and self-experiment and test. With the service tenet of "exceeding customer expectations", establish a "trusted" partnership.
 
Q: What is your main products?
A: We are a leading manufacturer and distributor of linear motion components in China. Especially miniature size of Ball Screws and Linear Actuators and linear motion guideways.  Our brand "KGG" stands for " Know-how," " Great Quality," and " Good value"  and our factory is located in the most advanced  city in China: Shanghai  with the best equipment and sophisticated technology, completely strict quality control system. Our aim is to supply world leader class linear motion components but with most reasonable price in the world. 
 
Q: How to Custom-made (OEM/ODM)?
A: If you have a product drawing or a sample, please send to us, and we can custom-made the as your required. We will also provide our professional advices of the products to make the design to be more realized & maximize the performance.
 
Q: When can I get the quotation?
A: We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price, please call us or tell us in your email so that we will regard your inquiry priority.
 
Q: How can I get a sample to check the quality?
A: After confirmation of our quoted price, you can place the sample order. The sample will be started after you sign back our detailed technical file. 
 
Q: What's your payment terms?
A: Our payment terms is 30% deposit,balance 70% before shipment.