ISO 9001 / IATF 16949 Certified
50 million pieces per annum
Documented Production Capacity
OD 4mm up to 385mm
Size Range (Moulded)
OD 50mm up to 1400mm
Size Range (Handcrafted)
800+ standard types
Types Available
25mm ~ 400mm
Slip Ring Range
ISO 9001 / IATF 16949
Certification
Commutators & Slip Rings
High-quality commutators and slip-rings for OEM electric motor manufacturing
Overview
A commutator is an arrangement of insulated copper segments (bars) that are connected to coils of an electric motor to provide a reversal of current into the coils of the motor.
The supplied manufacturing capability documentation describes more than 50 years of commutator-production experience across the production network, with approximately 800 commutator types from OD 4mm to 385mm in moulded construction and larger custom hand-crafted designs using steel and mica.
Our slip ring range is between 25mm ~ 400mm. Using only the best material and product design, we have the experience to offer commutators and slip rings for the most demanding specifications of high speed and high-temperature applications.
Types Available
- Hook Type Commutators: OD 4mm ~ 80mm - For automotive, home appliance, power tool applications
- Barrel Type Commutators: OD 5mm ~ 385mm - For DC motors, starter motors, industrial applications
- Face Type Commutators: OD 25mm ~ 120mm - For servo motors, air condition motors
- Silver Plated Commutators: OD 25mm ~ 120mm - For aerospace, military, marine applications
- Custom Design: OD 50mm ~ 1400mm - Steel and mica construction
- Slip Rings: OD 25mm ~ 400mm - For automotive and industrial generators
Production Capabilities
Production Equipment
Specialised automatic commutator manufacturing machinery
Moulding and forming equipment for moulded constructions
Machining and turning equipment for dimensional finishing and bore preparation
Mica insulation cutting and forming processes
Finishing and plating processes for application-specific variants
Modern inspection and test equipment for dimensional, electrical and mechanical verification
Materials
| Material | Specification |
|---|---|
| Copper | Electrical copper wire (99.90%) with silver alloy (0.003-5%) According to DIN 1787 40500 |
| Moulding Compound | Phenolic resin with reinforced glass fibre imported from Japan, USA, Germany |
| Insulation | Mica insulation between the bars |
| Rings | Steel or fibreglass rings for high-speed applications |
| Bore | Steel or brass bush reinforced bore |
Industry Applications
Automotive
HVAC, wiper/window-lift, seat, EPS, fuel-pump, ABS, alternator and starter motor applications
Home Appliances
Vacuum cleaners and other appliance motors requiring hook, barrel or reinforced commutator constructions
Power Tools
Drills, grinders, saws and other high-speed brushed power-tool applications
Industrial & Generators
DC motor, industrial motor and generator applications including custom slip rings
Medical / Servo
Face-type commutators for selected medical and servo-motor applications described in the capability document
Aerospace, Marine & Military
Silver-plated commutators for demanding applications identified in the supplied capability document
Technical capability reference
Commutator and slip-ring manufacturing range
The commutator capability document covers moulded hook, barrel and face commutators, silver-plated variants, slip rings and custom hand-built constructions for larger machines. Product selection depends on diameter, speed, temperature, current, insulation system, mechanical reinforcement and the motor or generator duty cycle.
4–385 mm
Moulded commutator OD range
50–1400 mm
Custom hand-crafted commutator OD range
25–400 mm
Slip-ring OD range
~800
Documented commutator types
50 million / year
Documented manufacturing capacity
Common constructions
| Type | Documented range / use |
|---|---|
| Hook commutators | OD 4–80 mm; automotive, home appliances, power tools and high-speed applications. |
| Barrel commutators | OD 5–385 mm; DC motors, starter motors, power tools, appliances and industrial duty. |
| Face commutators | OD 25–120 mm; automotive, industrial and servo-type applications. |
| Silver-plated commutators | OD 25–120 mm; demanding industrial, aerospace, military and marine applications. |
| Slip rings | OD 25–400 mm; automotive, industrial motor and generator applications. |
| Custom designs | Steel-and-mica, V-ring, moulded, glass-band and shrink-ring constructions; commutators up to 1400 mm OD. |
Material system
| Element | Documented specification / role |
|---|---|
| Copper | Electrical copper with silver alloy additions where required; source document references DIN 1787 / 40500. |
| Moulding compound | Phenolic resin moulding compound reinforced with glass fibre for mechanical and thermal stability. |
| Inter-bar insulation | Mica insulation between copper segments. |
| Reinforcement rings | Steel or fibreglass reinforcement for high-speed applications. |
| Bore reinforcement | Steel or brass bush where required for shaft press-fit and mechanical support. |
Manufacturing, quality and supply support
- Automatic and specialised commutator manufacturing equipment is used alongside modern inspection and test equipment.
- Custom designs can be developed from drawings or existing samples, including steel-and-mica, V-ring, moulded, glass-band and shrink-ring constructions.
- Quality management covers raw-material control through finished-product inspection for dimensional, electrical and mechanical requirements.
- UK and European warehousing can support stocking programmes and customer-specific delivery schedules where agreed.
Operating and construction considerations
- Commutator construction is selected around motor design, speed, temperature, current duty and the required mechanical reinforcement.
- Reinforced-ring designs are available for high-speed duties, including applications such as vacuum-cleaner motors and other demanding rotating equipment.
- Custom hand-built constructions described in the supplied capability document include steel-and-mica, V-ring, moulded, glass-band and shrink-ring commutators.
- Custom slip rings can be reviewed from drawings or an existing sample, with the documented slip-ring outside-diameter range extending from 25 mm to 400 mm.
- Face and silver-plated variants are available for selected industrial, servo, aerospace, marine and other demanding applications described in the supplied capability documentation.
Application sectors
- Automotive HVAC, wiper, window lift, sunroof, seat, mirror, EPS, washer pump, fuel pump, ABS, parking, alternator and starter motors.
- Home appliances including washing machines, vacuum cleaners, mixers, compressors, blowers, pumps and fan motors.
- Power drills, impact drivers, grinders, saws, sanders, routers and other portable power tools.
- Industrial AC/DC motors, PMDC motors, slip-ring motors, servo motors, traction motors, generators and actuators.
- Medical and aeronautical applications including surgical tools, medical pumps and tacho-generator duties.
Technical information is presented from Motor Components Ltd capability documentation and should be matched to the drawing, material, duty and production requirement for each enquiry.
Detailed technical information
Commutators & Slip Rings – Detailed Technical Information
Technical wording, tables and graphics below are reproduced from the supplied Motor Components capability material and are displayed directly on this product page.
COMMUTATORS AND SLIP RINGS
Your source for high-quality, commutators and sliprings for
Your OEM electric motor manufacturing.
A commutator is an arrangement of insulated copper segments (bars) that are connected to coils of an electric motor to provide a reversal of current into the coils of the motor.
The assembly is insulated on the rotor shaft and the copper blades are connected to the anchor windings. Permanently installed carbon brushes make contact with the collector and provide power to the anchor windings.
| Our product line includes most common types of commutators used in today's industrial applications and they can be grouped as; hook type, barrel and planer (face type) types of commutators. These are also constructed with several different methods of manufacturing mostly depending on application criteria and design of the motor. With over 50+ years’ experience in the industry, we offer approx. 800 types of commutators with OD 4mm up to 385mm moulded type of construction and custom made (handcrafted) commutators for larger machines with steel and mica construction. The rage for this type of had crafted commutators is OD from 50mm up to 1400mm. Our slip ring range between 25mm ~ 400mm. Using only the best material and product design, we have the experience to offer commutators and slip rings for the most demanding specifications of high speed and high-temperature applications; especially for the automotive, power tool, home appliance and industrial DC motor applications. For your obligation free quotation, send us your technical drawings, specifications, or samples. |
PRODUCTION CAPABILITIES
We offer approximately 800 types of commutators with OD 4mm up to 385mm moulded type of construction and also custom made (handcrafted) commutators for larger machines with steel and mica construction. The rage for this type of had crafted commutators is OD from 50mm up to 1400mm.
Manufacturing Capacity: 50 million pieces per annum
COMMON COMMUTATOR TYPES
| HOOK TYPE COMMUTATORS | BARREL TYPE COMMUTATORS | FACE TYPE COMMUTATORS |
 |  |  |
 | HOOK COMMUTATORS: OD: 4mm ~ 80mm We supply highly reliable moulded segment-hook type commutators for applications in the automotive, home appliance, power tool, marine and military applications. To meet the needs of high-speed motors such as in vacuum cleaners, we can provide reinforced ring commutators as well as high speed and high-temperature applications. | |
 | BARREL COMMUTATORS: OD: 5mm ~ 385mm For DC motors, automotive starter motors, power tools, home appliances and other industrial applications. we also offer Mica-moulded barrel-type commutators designed to stand the rigorous environments. | |
  | FACE COMMUTATORS: OD: 25mm ~ 120mm In addition to hook and barrel type commutators, we also manufacture face type commutators for automotive, industrial motor, medical such as servo motors, air condition motors etc.. SILVER PLATED COMMUTATORS: OD: 25mm ~ 120mm We offer various size and designs of silver-plated commutators for demanding applications in industrial, aerospace, military and marine applications. | |
 | SLIP RINGS: OD: 25mm ~ 400mm We also manufacture and supply various types of Slip-rings for automotive, industrial motors, generator applications. We can design and manufacture slip rings according to your design. Contact us for an obligation free quotation. |
 | CUSTOM DESIGN COMMUTATORS: OD: 50mm ~ 1400mm CUSTOM DESIGN SLIP RINGS: OD: 25mm ~ 400mm We can design and manufacture custom design commutator and slip rings according to your design or old sample. We offer the following custom-made hand-crafted commutators & slip rings to your specifications. Steel and mica commutators V-Ring commutators Moulded commutators Glass band commutators Shrink ring commutators Slip rings |
PRODUCTION EQUIPMENT
Advanced technology and modern equipment have been adapted by our internal experts, in close consultation with leading manufacturers, to create an efficient manufacturing process.
Our commutators are used in various applications around the world. Our success and high-quality standards, which distinguish our product from others, is the result of over 60 years’ experience in the commutator manufacturing industry. We have a dynamic highly skilled workforce and a modern state-of-the-art-factory. Our production equipment includes highly specialized automatic machinery, including the latest technology inspection and test equipment’s.
MATERIALS
| Copper | Electrical copper wire (99,90%) with silver alloy, (0,003-5%) According to DIN 1787 40500 |
| Moulding Compound | The quality of commutators also depends on the selection of the correct Moulding compound. We use a phenolic resin moulding compound with reinforced glass fibre imported from Japan, USA, Germany. |
| Insulation between Bars | Mica insulation between the bars |
| Rings | Steel or fibreglass rings are used for reinforcing the commutators for high-speed applications. |
| Bore | The bore may be reinforced by a steel or brass bush. It is ideal for pressing of commutator on the shaft. |
QUALITY
Our stringent quality management ensures product consistency covering all processes from raw material procurement to finished goods production. The products and processes pass through stringent quality tests benchmarked with global standards.
Our manufacturing facilities are ISO 9001:2015 and IAFT 16949 certified. Our greatest asset is delivering outstanding product quality and first-class service to our customers globally.
PRICE
Our components are efficiently manufactured to give our customers very competitive pricing without compromising product quality.
DELIVERY
We offer warehousing locations across the UK and Europe that are set up for stocking programs and deliveries to match customer specific manufacturing and inventory requirements.
If you would like to know more about our extensive range of commutators and slip ring products, please contact us.
INDUSTRIES:
- Automotive Applications
- Home appliances
- Power tools
- Industrial motors and pumps
- EV industries
- Aeronautical and Marine
APPLICATIONS
AUTOMOTIVE  | HVAC motors Window wiper motors Window lift motors Sunroof motors Seat adjuster motors Mirror adjuster motors EPS- Electric Power steering motors Washer pump motors Fuel pump motors ABS motors APS/parking Motors Power antenna motors Alternator & Starter motors |  |
HOME APPLIANCES  | FHP motors Washing machine motors Vacuum cleaner motors Mixer motors Shaded Pole Motors Gear Motors Compressor Motors Blower Motors Brushless DC Motors PMDC Motors Pump Motors Fan Motors / Micromotors / DC Motors |  |
POWER TOOLS | Power drills / Hammer drills Power Screwdriver Impact driver Angle grinder Belt Sander Circular Saw Jigsaw / Miter Saw Belt sander / Orbital Sander Planer / Rotary Tool Router /Wall Chaser |  |
INDUSTRIAL MOTORS | AC/DC Motors PMDC motors Slipring motors Step motors Servo motors Traction motors DC generators Ex-proof motors Tacho generators / Actuators |  |
MEDICAL & AURONICS | Surgical tools Medical Pumps Tacho generators Other Motors |  |
OEM sourcing guidance
Specifying Commutators & Slip Rings for your project
OEM buyers use commutators and slip rings to transfer electrical current in rotating equipment. Selection depends on electrical duty, speed, geometry, copper construction, insulation system and the way the component interfaces with the armature or rotor.
What buyers normally define
- Outside and bore diameter, length and mounting features
- Segment count, connection style and copper construction
- Operating speed, current load and duty cycle
- Insulation, resin and environmental requirements
- Drawing revision, sample approval and expected production volume
Related project support
Use these services when the requirement needs development, validation or a new sourcing route.
Buyer questions
Commutators & Slip Rings FAQs
What information is useful for a commutator RFQ?
A drawing or sample, dimensions, segment count, connection style, operating speed/current requirements and target quantity are useful starting points.
Can you support custom commutator designs?
The current range includes standard and custom commutator formats; custom enquiries should include drawings, samples or application requirements for review.
Do you also supply related rotating components?
Yes. Related categories include carbon brushes, motor shafts, laminations, bearings and starter or alternator components.
Quality Assurance
Our stringent quality management ensures product consistency covering all processes from raw material procurement to finished goods production. The products and processes pass through stringent quality tests benchmarked with global standards.
ISO 9001:2015
Quality Management
IATF 16949
Automotive Quality Standard
ROHS Compliant
Environmental Standard
Need Commutators & Slip Rings?
Send us your technical drawings, specifications, or samples for an obligation-free quotation. Our team responds within 24 hours.