27
Years in motion control
Custom motion components · Seoul, Korea · Since 1999
Custom motors, engineered in Korea. From one drawing to mass production.
27 years of motion engineering. Custom BLDC, geared motors, servo actuators, pumps and controllers — built to your spec from [MOQ] pcs, with certification support.
DESIGN · TOOLING · QUALITY UNDER ONE ACCOUNTABILITY — ENGINEERING REVIEW WITHIN 48 HOURS
7,000+
Standard SKUs behind every project
[MOQ]
Minimum order · pcs
[SAMPLE_WEEKS] wks
To first sample
[PROD_WEEKS] wks
To production
CE·RoHS
Certification support
Products
What we customize
P-01
Custom BLDC Motors
12–310V · 10W–2kW
hub/in-wheel · integrated driver · brake · IP
Configure →hub/in-wheel · integrated driver · brake · IP
P-02
Custom Geared Motors
spur · planetary · worm · bevel
low-backlash helical · self-locking
Configure →low-backlash helical · self-locking
P-03
Custom Stepper Motors
NEMA14–42 · 2-/5-phase
encoder · hollow-shaft rotary table
Configure →encoder · hollow-shaft rotary table
P-04
Servo & Robot Actuators
24V–380V · 50W–7.5kW
servo wheels · jacking · frameless torque
Configure →servo wheels · jacking · frameless torque
P-05
Gear Reducers
planetary · worm · 3:1–100:1
inline / right-angle · custom input flange
Configure →inline / right-angle · custom input flange
P-06
Linear Actuators
electric & servo cylinders
custom stroke · lead · end fitting
Configure →custom stroke · lead · end fitting
P-07
Micro Pumps & Blowers
to −98 kPa · 150 °C · Ex-proof
22 g IVD pumps · food-grade gear pumps
Configure →22 g IVD pumps · food-grade gear pumps
P-08
Controllers & Drivers
EtherNet/IP · Modbus TCP · EtherCAT · CANopen · RS485
legacy protocol compatibility — new hardware, your system's language
Configure →legacy protocol compatibility — new hardware, your system's language
P-09
Special Motor Development
a new motor from your application spec
load · speed · duty · envelope
Start a project →load · speed · duty · envelope
Need the whole axis? We ship complete motion sets — motor, driver, actuator and control — as one part number. Reorder the motion, not the parts list.
The gearhead platform
One gearhead platform. Any motor.
Our low-backlash helical planetary gearheads mount to brushed DC, BLDC, coreless and stepper motors alike— five frame sizes, twelve ratios, one engineering system. Most "custom" requests are a configuration for us, not a project.
22–45 mm
Frame sizes
1:14–1:721
Ratios · 12 steps
4 types
DC · BLDC · coreless · stepper
BRING YOUR OWN MOTOR
Already committed to a motor you trust? We engineer our gearheads onto premium motors you specify — keep the motor, customize the motion.
Already committed to a motor you trust? We engineer our gearheads onto premium motors you specify — keep the motor, customize the motion.
Proof we can hold a tolerance
≤ 1 arcmin
Backlash on our hollow-shaft rotary table units — indexing-grade precision.
Direct drive
AC direct-drive torque motors — no gear, no backlash, position by the motor itself.
Ø10 mm
Coreless planetary gearmotors at ten millimeters — precision doesn't stop at small.
Industries
Built for your application
IND-01IND-02IND-03IND-04IND-05IND-06
AGV / AMR & Mobile Robotics
wheel drives · jacking modules · low-voltage servo
Medical Devices & IVD
22 g micro pumps · low-noise · documented materials
CEMS & Gas Sampling
150 °C sampling pumps · Ex-proof options
Packaging & Factory Automation
indexing tables · geared steppers · drivers
Cobots & Robot Joints
frameless torque motors · harmonic-ready
Access & Auto Door Systems
self-locking worm gearmotors · quiet drives
How it works
From spec to production
01
Send your spec
A drawing, a STEP file, a photo — or just the application.
02
Engineering review
A motion engineer reviews every inquiry and proposes the motor.
WITHIN 48 HOURS
03
Quotation
Price, MOQ and lead time, with an approval drawing.
04
Sample
Prototype with inspection data for your validation.
[SAMPLE_WEEKS] WEEKS
05
Mass production
Repeat orders by your MB model number. Same spec, every lot.
You don't need a finished drawing. Tell us the application — load, speed, duty cycle, space — and our engineers propose the motor.
The manufacturing model
We don't own the production line.
We own everything that tells it what to make.
The drawing, the tooling, and the pass/fail decision stay with MotorBank. Production runs in audited partner facilities under our management — which is exactly why your part stays consistent, lot after lot.
01 · DESIGNOURS
Engineered by us
Every custom product starts from our drawing. The design is engineered, versioned and owned by MotorBank.
02 · TOOLINGOURS
Molds under our control
We build and control the molds and tooling. Dedicated tooling means your custom part can't be made for anyone else — and can't be discontinued behind your back.
03 · PRODUCTIONMANAGED
Audited partner facilities
Production runs in audited partner facilities under our management. We don't own the line — we own everything that tells the line what to make.
04 · QUALITYOURS
Our pass/fail decision
Incoming and outgoing inspection against our drawing, every lot. The pass/fail decision is made by MotorBank, not the factory.
MOLD LIFECYCLE MANAGEMENT · EOL PROTECTION — TOOLING UNDER OUR CONTROL MEANS SUPPLY CONTINUITY EVEN IF THE FACILITY CHANGES
Case studies
Things that didn't exist in a catalog
AGV / AMR
Integrated 48V wheel-drive servo module
Motor, gear, brake and CANopen driver in one housing, replacing a two-part assembly.
RESULT · assembly time cut, one vendor
Equipment OEM · JapanDrop-in replacement for a discontinued motor
Reverse-matched dimensions, torque curve and connector for a legacy DC geared motor.
RESULT · ~4,000 units/year recurring
CEMS150 °C gas sampling pump, Ex-proof
Diaphragm pump specified for high-temperature reformed gas in a monitoring cabinet.
RESULT · field-deployed, certified build
Engineering notes
How our engineers size a motor
Sizing
The Complete BLDC Motor Selection Guide — Voltage, Current & RPM Calculations
Voltage, current and RPM parameters, worked torque and power calculations, gearbox pairing, driver matching and a 10-point checklist — ready to use on a real project.
Read the method →AGV / AMRGear Ratio Selection — Finding the Optimal Ratio for AGV Wheel Drives
Step-by-step required RPM, torque and ratio calculations, a 500 kg AGV worked example, gearbox type comparison and an 8-point selection checklist.
Read the method →BLDCBLDC Driver Wiring & PWM Setup — The Complete Beginner's Guide
Power, U/V/W motor phases, Hall sensor and encoder connections, PWM control principles, a practical setup sequence, troubleshooting and five safety rules.
Read the method →Send us your drawing. Get an engineering answer in 48 hours.
NDA ON REQUEST · YOUR SUPPLIER IDENTITY IS NEVER DISCLOSED