How much weight can this motor lift if it was used for a "mini" garage door opener? Door would be 50"x30". Approximately 30lbs

The maximum torque this motor could produce is approximately 0.67 lb-in peak at close to stall. The stated speed 120 RPM is assumed to be a no-load value. Using a more reasonable operating 60% of these values, the motor may approximately produce 0.4 lb-in at 90 RPM. The power available from this unit is approximately .426 watts. You want to lift a 30 lb door 30 (?) inches in an assumed 10 seconds which is approximately 10 watts. So what you are asking is will a 0.43 watt motor power a 10 watt requirement. The answer is no. (The preceding power requirement calculation does not address any added wattage requirement due to friction or drive efficiency losses which would increase the "no" to a "HELL NO")

Can I use a 12V 1A adapter with this motor?

Depends on your application. I got 20 RPM motor: no load at 12V ~100mA. No load start-up 2A. I think stall test was nearly 4A.

Do these leak grease from the gear box?

Nope no sign of any grease leaking out yet

If this motor is used as a wind turbine generator, will it output 12v at 200rpm?

I used mine as a hand crank phone charger that charged a battery pack. I worked great and the output will vary based on your load and speed, so it will probably have a lower voltage than 12v at 200RPM. You'll want to put it through a full bridge rectifier with a capacitor in parallel to produce a DC voltage, however the diodes and capacitor will also drop your voltage. The battery pack I was using was only around 6 to 7 volts DC, also the gearing in the motor is really high so for a wind turbine you would probably have to help start the blades to get them to spin.

Dc 12v 30rpm Gear Motor High Torque Electric Micro Speed

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Description

⚡ Gear up with power and precision — don’t get left behind!

COMPACT YET MIGHTY - 37mm gearbox diameter fits seamlessly into your projects without compromising on torque or reliability.
RISK FREE INVESTMENT - Backed by a 100% unconditional return policy—because your peace of mind matters.
UNMATCHED DURABILITY - All-metal gears engineered for high abrasion and heat resistance, ensuring your motor outlasts the competition.
POWER SURGE PERFORMANCE - Precision-wound pure copper rotor delivers a 30% instant power increase—because efficiency is everything.
PRECISION TORQUE CONTROL - Adjustable positive-negative rotation with low noise, capable of driving loads up to 15kg at 10 RPM.

The DC 12V 30RPM Gear Motor features a robust all-metal gear system and a pure copper wire core rotor that boosts power by 30%. Its D-shaped hardened steel output shaft ensures durability and impact resistance, while the motor supports bidirectional rotation with adjustable speed reduction. Compact in size with a 37mm gearbox diameter, it delivers a rated torque of 12Kg.cm and is ideal for applications ranging from vending machines to robotics. Backed by a reliable guarantee, this motor combines high performance with long-lasting reliability.

Specifications

ASIN	B071GTTX4D
Best Sellers Rank	#41,389 in Toys ( See Top 100 in Toys ) #14 in RC Complete Electric Motors
Brand	Greartisan
Brand Name	Greartisan
Country Of Origin	China
Customer Reviews	4.6 out of 5 stars 77 Reviews
Horsepower	30 Watts
Manufacturer	Greartisan
Material	Copper
Material Type	Copper
Model	Greartisan
Model Name	gear
Model name	gear
Part Number	Greartisan
Speed	30 RPM
UPC	766330626944
Unit Count	1 Count
Voltage	12 Volts

Reviews

R**R

Good product.

21.06.2026

J**E

Sehr guter Motor

Super Qualität 👍

14.06.2026

A**S

Good Device

Built two automatic ice fishing rod jigging machines. After a season of use, one of the gearboxes got louder. It is very easy to remove the two screws on the shaft end to grease the gears. They are indeed all metal construction - no plastic gears.

8.03.2026

R**T

Sehr leise und kraftvoll. Super für Modellbau.

Habe 6 Stück für meinen "MARS 2020 Persevereance" Mars Rover gekauft. Sie sind sind sehr kraftvoll im Test und leise im Lauf. Der Dauereinsatz wird die Haltbarkeit noch ermitteln. Die sollten das Groẞmodell gut bewegen können. Die 6 Gewinde vorn sind sehr gut, um sie sauber zu montieren. Die ausmittigen Achsen muss man bei seinen Projekten beachten.

4.05.2026

T**E

Works fine, but quite loud

Much louder than a competitor's offering that starts with a U. Works well though. I have it on a proximity sensor so it doesn't run 100% duty cycle.

7.03.2019

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