Guang Dong Lihua Mechatronics Co.,Ltd
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GM25-320 25mm Gear Reduction Motor Customize 70RPM 10kgf.cm For Paper Dispenser
he GM25-320 DC Gear Motor is a highly customizable and efficient motor solution, designed to meet specific needs in applications such as paper dispensers. With a compact 25mm diameter, this motor is powered by a 320 micro motor combined with a precision gear reduction box, offering customizable reduction ratios of 29:1, 31:1, 78:1, 195:1, and 488:1. Customers can tailor the motor's speed, voltage, current, output shaft length, and shape (round/D-shape) to fit their unique design requirements.
Delivering up to 10kgf.cm of torque at a speed of 70RPM, the GM25-320 motor is engineered for reliable low-speed, high-torque performance, making it ideal for paper dispensing systems. The adjustable features of this motor allow for seamless integration into various paper dispenser designs, ensuring smooth and precise operation for continuous paper dispensing tasks.
Whether used in office equipment, automated paper roll systems, or other related applications, the GM25-320 offers a dependable solution with customizable options to meet performance and integration demands. Its adaptability, compact design, and high torque output make it a perfect choice for applications requiring controlled, high-torque rotation.
Model : GM25-320 /GA25Y320 micro metal gearmotor
Gearbox: 25 mm Dia metal spur gear reducer
Motor Size:20mm*L (Motor Length can be custom )
Shaft : Φ4mm D-cut 0.5mm, M4, custom
Gear Box Size:25mm*H mm (Gearbox Size can be custom)
Shaft size : Approx. 4 x L mm (Dia.*L)
Nominal Voltage : DC 3V 6V 12V 36V
Operating Voltage:3V-9V 12V-24V 18V-26V
Revolving speed:
10RPM/15 RPM / 50 RPM / 75 RPM / 100 RPM / 125 RPM / 150 RPM / 200 RPM / 250 RPM / 500 RPM
3V : 25 RPM / 1000 RPM
6V : 30 RPM / 400 RPM / 1000 RPM / 2000 RPM
12V : 60 RPM / 300 RPM / 400 RPM / 800 RPM / 1000 RPM / 2000 RPM / 4000 RPM
Encoder : Magnetic encoder available;
Commutation: Carbon brush/Graphite brush/Metal brush;
Construction: micro Permanent Magnet iron cored dc electric motor
GM25-320 25mm Gear Reduction Motor Features and Custom Service
| Key Feature | Custom Items |
| Big Large Torque | Output Shaft |
| Higher Efficiency | Lead Wire |
| Out-rotor Structure | Connector |
| Lower Noise | Speed |
| Long Life | Mounting Holes |
| 180 Gear Motor Ratio Options:29,31,56,73,78,107,140,182,268,349,456,488 | |
3V–24V Mini 25mm Gearbox 320 Motor Parameter List & Dimensions
Model: GA25-320,3V 6V 12V DC Gear Motor Paramter List
| Model | Volt | No-load | At Maximum Efficiency | Stall | |||||
| V | Speed | Current | Speed | Current | Torque | Output | Torque | Current | |
| r/min | A | r/min | A | Kg.cm | W | Kg.cm | A | ||
| GA25Y320-103 | 3.0 | 17 | 0.02 | 11 | 0.04 | 0.25 | 0.3 | 0.77 | 0.13 |
| GA25Y320-227 | 3.0 | 8 | 0.02 | 5 | 0.04 | 0.5 | 0.2 | 1.5 | 0.13 |
| GA25Y320-499 | 3.0 | 3.5 | 0.02 | 2.5 | 0.04 | 1.0 | 0.2 | 3.0 | 0.13 |
| GA25Y320-21 | 6.0 | 335 | 0.05 | 230 | 0.25 | 0.2 | 0.47 | 0.7 | 0.6 |
| GA25Y320-47 | 6.0 | 150 | 0.05 | 100 | 0.25 | 0.39 | 0.41 | 1.3 | 0.6 |
| GA25Y320-103 | 6.0 | 70 | 0.05 | 47 | 0.25 | 0.78 | 0.38 | 2.7 | 0.6 |
| GA25Y320-227 | 6.0 | 31 | 0.05 | 21 | 0.25 | 1.5 | 0.33 | 5.3 | 0.6 |
| GA25Y320-499 | 6.0 | 14 | 0.05 | 9 | 0.25 | 3.0 | 0.30 | 10 | 0.6 |
| GA25Y320-21 | 12.0 | 495 | 0.05 | 325 | 0.3 | 0.35 | 1.1 | 1.4 | 0.7 |
| GA25Y320-47 | 12.0 | 220 | 0.05 | 145 | 0.3 | 0.65 | 0.97 | 2.5 | 0.7 |
| GA25Y320-103 | 12.0 | 100 | 0.05 | 66 | 0.3 | 1.3 | 0.89 | 5.1 | 0.7 |
| GA25Y320-227 | 12.0 | 45 | 0.05 | 30 | 0.3 | 2.5 | 0.80 | 10 | 0.7 |
| GA25Y320-499 | 12.0 | 20 | 0.05 | 13 | 0.3 | 5.0 | 0.71 | 20 | 0.7 |
Note: all reduced no-load speeds have a tolerance of ±15%.
About Lihua Motor/HCS Motor Company
Founded in 2007, our company focuses on the research, development, and production of micro DC motors and geared motors under 36V. Originally known as HCS Motors, we have grown into a leading enterprise in the micro motor field through years of development and innovation. We are committed to providing customers with high-performance, high-reliability motor solutions.
Core Products
We primarily produce the following models of micro motors and geared motors:
Micro DC Motors: N20, N30, K10, 320 micro motor, 370 micro motor, 520 micro motor, etc.
Geared Motors: N30 geared motor, 370 geared motor, etc.
Production Capacity
The company owns a modern 10,000 square meter factory equipped with more than 200 production machines and 20 production lines. Our daily production capacity reaches 200,000 units. Thanks to an efficient production system and strict quality control, our product qualification rate is as high as 99.9%, and our customer satisfaction rate remains at 99.8% for an extended period.
Team and Scale
The company currently has approximately 300 employees, including an experienced R&D team, skilled production staff, and a professional after-sales service team. We adhere to a people-oriented approach, focusing on talent development and technological innovation to provide high-quality products and services to our customers.
Market Performance
In recent years, the company’s revenue has steadily increased, with Lihua Motor’s revenue surpassing 140 million RMB (approximately 19.3 million USD) in 2024. This achievement is the result of our continuous technological innovation, strict quality management, and strong customer recognition.
Certifications and Qualifications
The company has established a comprehensive production system and has passed multiple international certifications, including:
ISO9001 (Quality Management System Certification)
IATF16949 (Automotive Industry Quality Management System Certification)
REACH, ROHS (Environmental Certifications)
CE, SGS (Product Safety and Quality Certifications)
EPR (Extended Producer Responsibility Certification)
Partners
We have established long-term and stable partnerships with many well-known companies. Our clients span various industries, including:
Consumer Electronics: Huawei, Xiaomi
Home Appliances and Industry: LG, Flex
Future Outlook
Looking ahead, we will continue to adhere to the business philosophy of “Innovation-driven, Quality-based, Customer-first,” further expanding production capacity, enhancing R&D capabilities, and exploring global markets. We look forward to partnering with more companies to jointly advance the development of the micro motor industry and create greater value for our customers.