products details

Home Products

12mm N20 N30 DC Worm Gear Motor 12V 24V Self Locking High Torque Threaded Shaft for Valve Actuator

12mm N20 N30 DC Worm Gear Motor 12V 24V Self Locking High Torque Threaded Shaft for Valve Actuator

Brand Name:	Masing Motor
Model Number:	MS12ZN20-SL
MOQ:	1000 pieces
Price:	Negotiable
Payment Terms:	T/T
Supply Ability:	100000 pieces per month

Detail Information

Product Description

Ratings & Reviews

Detail Information

Place of Origin:

China

Certification:

RoHS, CE

Gearbox Type:

Z Type Worm Gearbox, Right Angle Output

Gearbox Diameter:

12mm

Micro Motor:

N20 / N30 Brushed DC Motor

Voltage:

DC 1.2V-24V (customized)

Speed:

5-300 RPM (customized)

Rated Torque:

Customized, High Torque

Self Locking:

Yes, Holds Load When Power Off

Shaft:

Threaded M3 / M4, D-cut Or Round (customized)

Weight:

About 20g

Noise:

Below 55 DB

Material:

RoHS Steel And Copper

Life Time:

300-1000 Hours

Certification:

RoHS, CE

Application:

Valve Actuator, Smart Lock, Medical Device, Robot

Packaging Details:

Strong carton 400pcs/box, customized packaging available

Supply Ability:

100000 pieces per month

Highlight:

Worm Gear Motor 12mm

Self Locking Gear Motor

Valve Actuator Gear Motor

Product Description

12mm N20 N30 DC Worm Gear Motor 12V 24V Self Locking High Torque Threaded Shaft for Valve Actuator

Product Overview

This 12mm DC worm gear motor pairs an N20 or N30 brushed micro motor with a Z type worm gearbox. The right angle worm drive multiplies torque and locks the output shaft when power is removed, so a valve, damper or lock stays exactly where it was set. The threaded M3 / M4 output shaft allows direct screw drive or direct coupling to a lead screw.

Self Locking Drive: worm gear geometry holds the load with no power, no brake and no extra current
High Torque in 12mm: right angle reduction gives strong torque from a very small body
Wide Voltage: DC 1.2V-24V customized, typical builds at 3V, 6V, 12V and 24V
Speed Range: 5-300 RPM customized on the output shaft
Threaded Shaft: M3 / M4 thread, D-cut, round or double D-cut shaft available
Low Noise: running noise below 55 dB, quiet enough for indoor equipment
RoHS Compliant: steel and copper gear train, RoHS and CE compliant build

Technical Specifications

Model Number	MS12ZN20-SL
Gearbox Type	Z type worm gearbox, right angle output
Gearbox Diameter	12mm
Micro Motor	N20 / N30 brushed DC motor
Rated Voltage	DC 1.2V-24V (customized)
Speed	5-300 RPM (customized)
Rated Torque	Customized, high torque worm reduction
Self Locking	Yes, output holds load when power is off
Shaft	Threaded M3 / M4, D-cut, round, double D-cut (customized)
Weight	About 20g
Noise Level	Below 55 dB
Gears Material	RoHS steel and copper
Commutation	Brush
Protect Feature	Exposed gearbox
Life Time	300-1000 hours (customizable)
Warranty	3 months to 1 year
Place of Origin	Guangdong, China

Why a Self Locking Worm Gear Motor

Energy saving: the actuator only draws current while moving, the worm drive holds position afterwards
Fail safe holding: valves and dampers keep their set position if power is cut, so no spring return is needed
Compact right angle layout: the motor sits perpendicular to the output shaft, which fits narrow valve and lock housings
High reduction in one stage: strong torque from a 12mm body, no long gear train and no backlash chain
Customization: voltage, speed, torque, shaft thread, cable length and connector all adjustable for OEM projects

Applications

Application Area	Specific Uses
Valve and Fluid Control	Miniature valve actuator, water valve, gas valve, smart meter valve drive
Smart Locks	Door lock, fingerprint lock, express cabinet lock, bike lock, shared device lock
Smart Home	Electric curtain, damper drive, smart window opener, air vent actuator
Medical Equipment	Infusion pump, urine analyzer, massage device, portable medical instrument
Robots and Automation	Robot joint, AGV mechanism, automatic sharing device, projector lens drive
Business Machines	3D printing pen, printer mechanism, camera pan tilt, vending machine drive

Customization Options

Rated voltage, rated torque, speed, current, power, shaft size and thread can all be customized to your requirement. Please share rated voltage, load speed, load torque, shaft thread and size range, and we will confirm the matching build and drawing before production.

Packaging and Delivery

Packaging: Strong carton 400pcs per box, or customized packaging

Port: Shenzhen / Guangzhou / Shanghai

Single Package Size: 37 x 27 x 24cm

Single Gross Weight: 10.6kg

Supply Ability: 100,000 pieces per month

Quantity (pieces)	Lead Time (days)
1 - 100	10
101 - 1000	20
More than 1000	To be negotiated

Samples: 1 piece available, sample price USD 10 per piece, refundable on formal order

Frequently Asked Questions

Q1: Does the motor really self lock?

A1: Yes. The worm gear lead angle is smaller than the friction angle, so the output shaft cannot be back driven by the load. The valve or lock stays in position with no power and no holding current.

Q2: Are you a manufacturer or a trading company?

A2: We are a professional micro motor manufacturer with more than 10 years of experience, integrating development, production, wholesale and service, with in house testing equipment.

Q3: Can you customize the threaded shaft?

A3: Yes. Threaded M3 and M4 shafts, D-cut, round and double D-cut shafts are available, and the thread length and pitch can be matched to your mechanism.

Q4: What certifications do you have?

A4: Our motors are RoHS and CE compliant, and our factory runs ISO and IATF16949 quality systems. Test reports can be provided on request.

Q5: What is the lead time?

A5: 10 days for 1-100 pieces and 20 days for 101-1000 pieces. Larger orders are scheduled after drawing confirmation.

Ratings & Review

Overall Rating

5.0

Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings

5 stars

100%

4 stars

3 stars

2 stars

1 stars

All Reviews

Robert Moore

Canada Sep 21.2026

Helpful (130)

No surprises, no drama — just exactly what we ordered. Will buy again

Brian Clark

United States May 25.2026

Helpful (116)

Pricing is fair and competitive, and the build quality holds up.

Emily

South Korea Feb 18.2026

Helpful (100)

A good supplier,The product is very exquisite and has stable performance.

Tags:

DC Gear Motor

Brushless DC Motor

DC Brushed Motor

DC Worm Gear Motor

Vibration DC Motor

Permanent Magnet DC Motor

DC Planetary Gear Motor

DC Stepper Motor

DC Coreless Motor

Micro Pump Motor

DC Gear Motor

Brushless DC Motor

DC Brushed Motor

DC Worm Gear Motor

Vibration DC Motor

Permanent Magnet DC Motor

DC Planetary Gear Motor

DC Stepper Motor

DC Coreless Motor

Micro Pump Motor

products details

12mm N20 N30 DC Worm Gear Motor 12V 24V Self Locking High Torque Threaded Shaft for Valve Actuator

12mm N20 N30 DC Worm Gear Motor 12V 24V Self Locking High Torque Threaded Shaft for Valve Actuator

Worm Gear Motor 12mm

Self Locking Gear Motor

Valve Actuator Gear Motor

Overall Rating

Rating Snapshot

All Reviews

High Torque Worm Gear Motor

Worm DC Gear Motor

Worm Gear Reducer Motor

Gearbox Brushless DC Worm Gear Motor Self Locking Low Noise 2430 Brushless Motor 32*46mm

High Torque Worm Gear Motor 12V 24V Volt Micro Electric Brush DC Gear Motor

Customized DC Worm Gear Motor 12MM Mini 5 Volt DC Gear Motor With Right Angle Gearbox

Right Angle DC Gear Motor 12V 24V 370 Micro DC Spur Gear Motor For Barbecue Grill

Customized DC Worm Gear Motor 12mm N20 N30 Gearbox DC Motor Threaded Shaft M3 M4

MS12Z20 DC Worm Gear Motor 12v 24v Brushed Mini Gearbox High Torque Micro DC Gear Motor

3246 Worm Gearbox DC Motor 370 Worm Geared Motor Customized For Doll Machine

12 Volt DC Worm Gear Motor 12V 24V 7RPM~470RPM Speed Worm Gear Reducer Motor