Custom-built DC Motors Manufacturer

Sherrymotor offers high-quality electric motor and related parts/equipment manufacturing solutions for Original Equipment Manufacturers (OEMs) in China.

Why It Pays To Custom Build DC Motors With Us

Brushless DC Motor

Sherrymotor manufacturing processes meet some of the most rigorous quality standards in the world.

Brushed DC Motor

Quoting, prototyping and after-sales support is faster and easier, saving your company time and money.

DC Gear Motor

Keeping manufacturing jobs in the US boosts the economy.

Brushless DC Motor

Higher standards mean that manufacturing processes are cleaner and better for the environment than in many other countries.

Brushed DC Motor

Whether you need a 24 volt motor or one with another voltage, we can design one for you, capable of reaching up to 2 HP and 5,000 RPM

DC Gear Motor

Our motors can be designed to run at a constant speed or a variable speed, depending on your requirements.

DC Motors & Gear Motors Supplier in China

Custom Motors & OEM Applications

When The Motor Or Gear Motor You Want Hasn't Been Designed Yet, Come To Sherrymotor

Sherrymotor offers OEMs a full selection of high performance designs to meet a wide range of OEM applications. These fully tooled production solutions offer OEMs an opportunity to select a motor or gear motor series model and move right into production efficiently and quickly.

In addition, Sherrymotors offers OEMs the option of customizing all of the electric motors or gear motors in our portfolio, or taking a "clean sheet" approach and working together to develop a complete custom motor or motor assembly solution.

Customized Motor Solutions

All of the designs in the Sherrymotors portfolio of electric motors and gear motors are fully and easily customized offering OEMs high quality, cost effective options that meet their OEM application specific demands.

Choosing to customize one of the motors or gear motors in our portfolio, enables OEMs to meet their custom motor or gear motor requirements while allowing for faster development times.Let our experienced and technical design engineers help you select the options and features that meet your needs.

"Clean Sheet" Custom Solutions

A "clean sheet" custom electric motor or gear motor solution, designed specifically for your OEM application, can often be the correct choice when deciding on whether or not to customize or "clean sheet" a totally new design for an application. A project's cost objectives, volumes, or specific technical requirements may lead toward a "clean sheet" custom electric motor or gear motor solution. If this is the case, Sherrymotors' team of experienced engineering professionals are ready to help along the way, from concept through production. Sherrymotors has complete engineering and design capabilities using both 2D and 3D modeling platforms and an in-house tooling and modeling shop to machine and assemble prototypes. Prototype tooling and SLA modeling are also available. Our in-house performance testing laboratory enables performance and life testing of all of our new designs using state of the art dynamometers, computer aided design programs, automated test stations, and temperature testing. If your project calls for a custom OEM electric motor, gear motor or custom OEM motor assembly, let Sherrymotors help you weigh the options and make sure your project is a success!

Our OEM DC Motor services

Custom DC Motor Options

DC motor, Brushless DC motor or Brushed DC motor
Custom motor windings
Custom motor brush designs
Custom motor voltages
Sleeve, ball or needle bearings
Custom leads and terminations of terminal box
Custom output shaft materials, diameters and details
Custom finishes
Custom end bells and mounting
Thermal protection
EMI/RFI noise suppression
Rectification
Totally enclosed non-ventilated (TENV) motors, totally enclosed fan cooled (TEFC) motors, or open-ventilated (OV) motors

Custom Gear Motor Options

Custom gear ratios
Custom gearing (Hobbed steel, powdered metal, plastic, phenolic, spur, helical, worm, planetary)
Sleeve, ball or needle bearings
Custom output shaft materials, diameters and details
Specific Ingress Protection (IP) ratings
Custom gear motor mounting
Custom gearbox lubricants

Custom Output Shafts

Double extended
Flatted
Double flatted
Keyway
Threaded
Woodruff keyway
Drill and tap
Custom shaft material
Other – per customer specification

Custom Mountings

Face Mount
Flange
Foot Mount
Other – per customer specification

Custom Motor / Gear Motor Finishes

Powder and wet coatings
Plated finishes
E-coatings
Melonite
Autophoretic

Custom Accessories

Electromechanical brakes
Electromechanical clutches
Encoders / Tachometers
Potentiometers
Motor controls
Mounting brackets
Other – per customer specification

Our Manufacturing Process For Custom Electric Motors

01 Customer Specification of Motor

Deliverables

The customer delivers a specification of the required performance of the motor taking into account the motor torque and speed requirements over the relevant duty cycle.

PMW can assist with this phase and in some cases provide a strategic study to arrive at the best combination for the complete motion control system.

02 Magnetic and Thermal Motor Study

Lead Time

2-4 weeks from receipt of purchase order. Customer places order for magnetic study. PMW undertakes magnetic and thermal study.

Deliverables

Report with outputs from the magnetic study that will determine the electromagnetic configuration of the motor taking into account thermal constraints. Customer reviews the magnetic study report.

Cost

Depending on complexity.

03 Mechanical Design of Motor

Lead Time

2-8 weeks, depending on customer requirements. Customer confirms the specification of the interfaces between the motor and the rotary and static sides of the application, so that PMW can commence mechanical design.

Deliverables

Parasolid model of final motor (surfaces only) and outline drawings together with an updated firm quotation for engineering samples. Customer reviews the Parasolid model and outline drawings for confirmation of integration into application.

Cost

Charged per motor variant, depending on complexity.

04 Engineering Sample Motor Manufacture

Lead Time

2-8 weeks, depending on customer requirements. Customer confirms the specification of the interfaces and places order for mechanical design and samples.

Deliverables

PMW produces engineering samples in-house. Parts will usually be machined from solid, hand assembled and tested by our advanced production team.

Cost

Determined by the choice of motor size, electromagnetic configuration, mechanical design and quantities.

05 Volume Motor Manufacture

Deliverables

Finally, PMW can put together a complete plan for small or large volume manufacture involving tooling and set-up of a dedicated production line.

Common Applications for DC Electric Motors

DC series motor is suitable for both high and low power drives, for fixed and variable speed electric drives. This type of motor has simple construction. Also, it is easy for design and maintenance.

Because of its high starting torque, this motor uses in the cheap toys and automotive applications such as