Buyer Guides
Practical guides for engineers and buyers sourcing electric motors, parts and production equipment from China.
How to Source Electric Motors from China: a Buyer's Step-by-Step Guide
Where China's motor clusters are, how to shortlist factories, what to send in an RFQ, and how samples, tooling, payment and shipping usually work.
Read the guide →How to Read a Motor Datasheet: Ratings, Constants and Curves Explained
What rated, peak and stall values mean, how torque and back-EMF constants relate, and which figures Chinese datasheets often leave out.
Read the guide →Motor Factory Audit Checklist: What to Check on a Visit to a Chinese Factory
A practical checklist for visiting a motor factory: incoming inspection, winding, magnetising, balancing, end-of-line testing and traceability.
Read the guide →MOQ, Samples and Lead Times for Custom Motors from China
Typical minimum order quantities, sample times, tooling and production lead times for standard, modified and fully custom motors.
Read the guide →Motor Certifications for Export: CE, UL, RoHS, REACH and Efficiency Rules
Which certifications a motor needs for the EU, North America and other markets, who is responsible, and what to ask a Chinese supplier for.
Read the guide →BLDC vs Brushed vs Stepper vs Servo: How to Choose a Motor Type
A practical comparison of the main small-motor types by cost, control, life, noise and typical applications, with a quick selection table.
Read the guide →How to Decode Chinese Motor Part Numbers (57BL, 86BYG, JGB37-520, 5IK40GN, 80ST, YE3)
Chinese motor model codes follow a few widely shared conventions. Type a code into the decoder, or read the patterns below for steppers, BLDC, DC gear motors, small AC motors, servos and induction motors.
Read the guide →How to Find a Chinese Equivalent of a European, US or Japanese Motor
A step-by-step method to replace an imported motor with a Chinese-made one: which specifications must match, which can differ, and how to validate samples before switching.
Read the guide →What Does KV Mean on a Brushless Motor? KV, Torque and Choosing a Drone Motor
KV is the no-load speed per volt. Learn how KV relates to torque constant, why low-KV motors swing bigger propellers, and how to pick KV, voltage and stator size together.
Read the guide →How to Choose a BLDC Motor Driver or Controller
Match voltage and current, choose Hall or sensorless control and six-step or FOC, pick the command interface, and plan for braking and protection.
Read the guide →Hall Sensor vs Sensorless BLDC Motors: Which Should You Choose?
How Hall sensors, sensorless back-EMF control and encoders work, where each one fails, and which applications suit each.
Read the guide →How to Choose a Hub Motor for E-bikes, Scooters and AGVs
Geared vs direct-drive hubs, voltage and power limits by market, torque and wheel size, and what AGV and robot wheel motors add (encoder, brake, servo drive).
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