Moog: L3S and L3SK Linear Motors

December 11, 2020

The Moog air-cooled L3S and liquid-cooled L3SK flat linear motors are designed for highly dynamic applications. L3S and L3SK motors are three-phase, synchronous, linear iron core motors, which are supplied in the form of active parts (built-in motors). Their primary part is formed by a ferromagnetic stack, composed of laminations and a three-phase winding inserted into its slots. This primary part is excited by permanent magnets in the secondary part, which are placed in a standard, static arrangement and used as a magnet way.

Both the L3S motor series and its liquid-cooled variant, the L3SK, offer some of the largest power ranges in the industry, with standard models delivering continuous rated force values ranging from 150 to 7,500 N for the L3S series and 300 to 12,000 N for the L3SK series, when using water as a cooling agent. Additionally, the air-cooled L3S series can be loaded with forces and currents substantially higher than those produced at nominal speeds. In comparison, the liquid-cooled L3SK series has almost double the force and output power of its air-cooled counterpart (L3S), although the dimensions remain the same. Yet another advantage of the L3SK series is its ability to operate at higher ambient temperatures.

The modular design of both linear motor series supports a variety of options. In addition, Moog can provide completely customized solutions, including:

  •    –   Winding and special insulation options for systems designed for… 
    •       –   different force constants (from about 40 to 1,000 N/A) 
    •       –   different intermediate circuit voltages (140 V, 330 V, 560 V, 700 V DC)
  •    –   Increased IP ratings 
    •       –   air-cooled linear motor with increased IP rating is the L7S model
    •       –   liquid-cooled counterpart is the L7SK. 
  •    –   Position of outlet cables can be modified


Features

  •    –   Designed for highly dynamic applications
  •    –   High force overload capacity (L3S)
  •    –   High values of continuous force (L3SK)
  •    –   High quality production
  •    –   High precision assembly
  •    –   Long life and high operational reliability 


Benefits

  •    –   Great positioning precision
  •    –   Highly customizable
  •    –   High force density
  •    –   Different winding options available


Source

Related Articles



Editor’s Pick: Featured Article

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s scalable engineering software, u-control 2000, adapts individually to your requirements. And, the u-control is powerful, compact and fully compatible with Weidmüller’s I/O system u-remote. This article looks at what makes u-control the heart of your automation.

Programmable logic controllers (PLCs) are one of the main components of any automated system. A typical control system has inputs, outputs, controllers (i.e., PLCs), and some type of human interaction with the system, a human machine interface (HMI), for example.

Read More



Latest Articles

  • UL Certification Requirements for OEMs: Essential Guide for Renewable Energy Projects

    May 5, 2026 In today’s fast-evolving energy and manufacturing landscapes, product safety, performance, and reliability are under greater scrutiny than ever before. For OEMs (Original Equipment Manufacturers) and players in the renewable energy sector, one certification has emerged as a gold standard—UL certification.  Although not legally mandatory in all regions of North America, UL (Underwriters Laboratories) certification is Read More…

  • Case Study: Improving Transformer Reliability for Underground Mining Power Systems

    May 5, 2026 Segment and Application The customer is a regional provider of engineered electrical solutions for mining and industrial applications in Mexico. They design and integrate customized power distribution equipment and electrical systems for harsh environments, including underground mining operations. As part of this work, they required compact power solutions for underground mining skids Read More…