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Linear Servo Motors

World's Largest Supplier of Linear Servo Motors

Linear motors come in a variety of technologies and styles, including brush or brushless, and configured as flat iron-core, U-shaped, or tubular. Nippon Pulse’s tubular Linear Servo Motor consists of a magnetic shaft and coil assembly (forcer) which can be integrated into a mechanical assembly and driven with a brushless DC servo drive. These linear motor actuators can replace ball and lead screw, pneumatic, and conventional flat or U-Channel linear actuation systems.

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Linear Servo Motors

Specification Overview

  • Range of shaft diameters: 4mm to 100mm
  • Stroke lengths: 20mm to 4.6M
  • Achievable peak forces more than 3000N
  • Continuous force up to 600N

Linear Servo Motor Advantages

  • Simplicity - The simple structure of a magnetic shaft and coil assembly (forcer) experiences minimal wear and is entirely maintenance-free, keeping your
    machinery running longer with less downtime and a significant cost reduction throughout its lifespan.
  • Precision - With no iron in the forcer or shaft, ultra-high precision is achievable with zero cogging for applications that require extreme smoothness of
    motion in machine operation.
  • Accuracy - High-performance positioning with encoder resolutions less than 10nm enable a positioning accuracy of ±1.2 pulses of encoder resolution for
    improved yield of high precision processes.
  • Strength - Rare-earth magnets, the strongest magnets available, add to the intensity of the magnetic field and thus allowing a small amount of current to
    produce large amounts of force for low power and high efficiency machines.
  • Speed - Able to efficiently move large amounts of weight accurately and smoothly at high speeds, increasing throughput and profitability.

Precision Solutions for Industries

  • Packaging
  • Life Sciences
  • Semiconductor
  • Optics & Photonics
  • Robotics
  • Toolless Cutting
  • Lab Automation
  • Pharmaceuticals
Packaging
Life Sciences
Semiconductor
Optics & Photonics
Robotics
Toolless Cutting
Lab Automation
Pharmaceuticals

How to Select the Best Linear Servo Motor Actuator for your Application

  1. Outline the motions that you’re trying to achieve
  2. Find the acceleration traverse and deceleration times need for each movement
  3. Specify the time between each movement
  4. Average the force/current needed for all of the moves (RMS average)
  5. Find a shaft motor with an RMS Force or RMS current larger than what is needed for your move
  6. Find a power supply and amplifier that can provide the currents needed for your moves (peak and RMS currents)
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How to Configure a Linear Servo Motor

To configure a system using the Linear Servo Motor, the following peripheral devices are
required:

A1. Linear Servo Motor Shaft – Stainless steel Shaft with embedded magnets
A2. Linear Servo Motor Forcer – Motor coils and hall effects (optional)
B. Servo Driver – Servo amplifier to commutate and control the linear motor
C1. Linear Encoder Scale (optical or magnetic) – Feedback scale
C2. Linear Encoder Read Head – Feedback sensor
D1. Linear Rail – profile or round rail to support the forcer
D2. Linear Bearing Block – Attaches forcer to the bearing rails
E. Shaft Support – used to support the shaft
F. Cable Carrier – supports the cables that mover\ with the forcer
G. Table or Load Plate – mounting surface for the load

Item D1, D2 (Linear Guide) are a necessary part of a system, and must be selected based on the specific application requirements, environmental conditions, and fitted appropriately to the moving element (forcer or shaft).

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Linear Servo Motor Videos

Linear Servo Motor in High-Speed Application

The Linear Servo Motor outperforms competing linear motors when high speed and high precision are needed simultaneously. The Linear Servo Motor is able to achieve sub-micron resolutions, and also greatly decreases the impact of heat on the workpoint.
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LSM: First Linear Servo for Ultra High Precision

Nippon Pulse’s Linear Servo Motor is the first linear servomotor designed for the ultra-high-precision market. Its design features greater stiffness, no cogging, a non-critical air gap, and less heat generation, which allow the Linear Servo Motor to achieve sub-micron resolution.
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S160 Linear Servo Motor in a Custom Stage

The Linear Servo Motor is built for the ultra high-precision market, but is also designed to handle lower-resolution applications. The Linear Servo Motor is more efficient and produces less heat than other linear motors, such as platen-style and U-shaped systems.
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Linear Servo Motor in a Vertical Alignment

Our Linear Servo Motor can be used in a variety of vertical applications. A vertical alignment of the Linear Servo Motor can be seen here, as can a variety of motion profiles. This is a S160T motor. View all of our Linear Servo Motor sizes under the Products tab.
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