86 Base Wheatstone High Temperature Stepper Motors

High Temperature Motors – 86 Base High Temperature Stepper Motors

Product Overview

The WHEATSTONE High Temperature Stepper Motors.High-temperature stepper motors are specialised motors capable of maintaining reliable operation in extreme thermal environments exceeding 100°C, and even up to 300°C. Rather than simply being standard stepper motors that ‘endure’ high temperatures, they address the core challenges posed by high temperatures through a series of targeted material and structural designs.

Key Features

Upgrades to key materials: In high-temperature environments, the first components to be threatened are the motor’s ‘lifelines’—the insulation, permanent magnets and lubricants. Consequently, high-temperature stepper motors feature comprehensive material upgrades:

High-temperature-resistant permanent magnets: Specially formulated permanent magnets are used to effectively prevent irreversible demagnetisation at high temperatures, ensuring that torque does not diminish.

Specialised Insulation Materials: High-temperature-rated enamelled wire and insulation layers are utilised to prevent the windings from short-circuiting and burning out at high temperatures.

Specialised Adhesives and Grease: Components are secured using adhesives with low outgassing rates and high-temperature resistance, whilst specialised high-temperature grease ensures the bearings operate smoothly under high-temperature conditions.

 Specialised structure and design: In addition to the materials, the design must also be ‘well-rounded, both inside and out’. Certain design features allow the motor to be directly exposed to high-temperature environments without the need for additional thermal insulation, thereby simplifying the system structure. At the same time, to accommodate thermal expansion and contraction, the internal structure (such as bearing clearance) has been specifically optimised to enhance reliability in environments subject to alternating hot and cold conditions.

Motor length

Motor Dimensions

Electrical Parameters

High-temperature stepper motors are primarily designed for use in extreme thermal environments where conventional motors are unsuitable; their core value lies in their ability to provide precise motion control directly in high-temperature and even vacuum environments, without relying on complex auxiliary cooling or thermal insulation systems.

1.Industrial High-Temperature Processes and Testing

High-temperature testing and ageing equipment: Can be installed directly within high-temperature test chambers or ageing ovens to conduct life testing and performance verification of electronic components in temperature ranges from –40 °C to +150 °C or even higher, thereby eliminating the need for complex thermal insulation designs.

Automotive component testing: Simulates the high-temperature environments found in engine compartments or near braking systems to test the reliability and durability of components at temperatures of +85 °C or higher.

Glass and Metal Smelting: Used in high-temperature work areas such as glass furnaces and tempering workshops to drive agitators or material transfer mechanisms.

Semiconductor Manufacturing: Provides precise linear or rotary motion for process stages requiring high temperatures and high cleanliness, such as wafer handling and probe testing.

2.Aerospace and Defence Equipment

Applications of this kind often involve a combination of demanding requirements such as high temperatures, vacuum conditions and radiation resistance, posing extreme challenges to the overall performance of electric motors.Spacecraft and Space Stations: Used to drive solar panels to track the sun and control robotic arms, amongst other tasks, these motors must withstand 

the extreme temperature fluctuations and vacuum conditions of space.

Ground-based Simulation Equipment: Used in ground-based test facilities such as wind tunnels and space simulation chambers to simulate extreme environments 

for equipment testing.

Military and Radar Systems: Used in automated weapon systems, radar antennas and similar applications, requiring resistance to high and low temperatures, 

as well as shock and vibration.

3.Scientific Instruments and High-End Manufacturing

High-temperature stepper motors also play a crucial role in scientific research and production fields where extremely high precision and cleanliness are required.

Vacuum coating and welding: Directly drive workpieces or baffles within a vacuum chamber to perform precision coating or welding processes.

Electron microscopes and synchrotron radiation facilities: Used to precisely move sample stages or other optical components in ultra-high vacuum environments.

Biomedical Applications: Providing high-precision motion control in environments requiring cleanliness or extreme temperature control, such as genetic sampling equipment and analytical instruments.