About us

About Astrosyn

A World recognised leader in rotary technology

For more than five decades, Astrosyn has been known internationally as a trusted source of high‑performance electrical rotating components. Our products are engineered to meet the demanding specifications of a wide range of clients — from Blue‑Chip companies and Original Equipment Manufacturers (OEMs) to government agencies. We are proud to be an Approved Supplier to the UK Ministry of Defence, reflecting our long‑standing commitment to quality, precision, and reliability.

The Astrosyn name is synonymous with world‑class expertise in rotating electrical machines. This specialist knowledge is available to support our clients at every stage, from concept to production.

Our Brands: Astrosyn & Lawtronics

Lawtronics is a leading UK electronics brand known for its battery management solutions. Since joining the Astrosyn group in 2000, Lawtronics products have been manufactured and distributed by Astrosyn International Technology Ltd.

Together, the Astrosyn and Lawtronics brands offer a comprehensive range of OEM products serving diverse sectors including:

  • Industrial

  • Instrumentation

  • Healthcare

  • Security

  • Defence

  • Environmental

Innovation, Quality, and Partnership

As a trusted partner to OEMs and government agencies, our responsive R&D facility delivers fully tested, cost‑efficient products designed to meet the demands of modern production cycles. We are committed to the highest quality standards, demonstrated by our certification to BS EN ISO 9001:2015.

 

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Custom Motor & Design Adaptation

Astrosyn takes pride in offering a truly adaptable design service, delivering cost‑effective motor customisation without compromising performance or reliability.

Our ability to carry out skilled modifications on standard components allows us to avoid the time and cost penalties of traditional design routes, while still enabling enhancements that do not invalidate warranties. This gives our clients the flexibility they need, backed by the assurance of proven engineering quality.

Expert Adaptation Services Include:

  • Flange and housing modifications

  • Special connectors

  • Custom shafts, keyways, gears, and pinions

  • Integration of gearboxes, brakes, and encoders

  • Winding reconfiguration

  • EMC‑compliant motor elements (braiding, chokes, etc.)

  • IP rating upgrades

  • Sub‑assembly and electronics manufacture

In addition to motor customisation, Astrosyn provides full development and manufacture of electromechanical sub‑assemblies. These assemblies are fully tested and supplied in call‑off batches to support tightly scheduled production cycles. By engineering this service with the same precision as our products, our motors and drives team offers the flexibility and technical expertise required to deliver tailored solutions.

 

 

 

 

Service and Support

Astrosyn’s Customer Care Programme provides a rapid‑response service built on friendly, knowledgeable support and a commitment to solving customer challenges quickly and effectively.

Our Support Services Include:

  • Project evaluation
  • Applications and product advice
  • Samples and prototyping
  • Product and spares traceability
  • Recommended spares kits
  • Repair and refurbishment
  • Fault diagnosis
  • Rigorous test facilities

Our deep expertise in motor technology — across both industrial and defence applications — gives us the specialist knowledge required to deliver effective solutions. Whether using standard products or developing custom assemblies, we work closely with clients to meet their exact requirements.

 

Maintaining Special AC & DC Motors

Refurbishment & Repair

Astrosyn provides a comprehensive repair and refurbishment service for AC and DC motors, including those manufactured by other specialist companies. Our capabilities range from stripdown and survey to full refurbishment, major repairs, and design improvements to resolve issues such as overheating or premature wear.

Stripdown & Survey

A typical stripdown and survey includes:

  • Initial visual, mechanical, and electrical inspections
  • External cleaning (with protective shielding if grit blasting is required)
  • No‑load testing
  • Full disassembly
  • Internal cleaning
  • Detailed inspection of parts and sub‑assemblies
  • Measurement of shaft and housing fits
  • A full written report of findings

Basic Refurbishment

A standard refurbishment typically includes:

  • Reclamation of bearing fits (shaft and flanges)
  • Replacement of bearings
  • Final assembly
  • No‑load testing
  • Airborne noise measurements to NES847
  • Structure‑borne noise measurements to NES813
  • Motor finishing and touch‑up paint
  • Test report
  • Certificate of Conformity

Major Repairs

Major repairs are carried out to customer specifications and may include:

  • Flange machining and shaft repair
  • Removal of old windings, rewinding, and varnishing
  • Fitting new thermistors to NES requirements
  • Replacement of armatures
  • Skimming of rotors and stators to optimise the air‑gap
  • Manufacture and installation of terminal boxes

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