.About Us

Your Strategic Partner in Magnetic Core Manufacturing

In a world driven by electric power, the performance of your motor, generator, or actuator is determined by its core. At Sino, we don’t just manufacture lamination stacks; we engineer the magnetic heart of your application. Partnering with us means leveraging a foundation built on experience, scale, and an unwavering commitment to precision.

15+

15+ Years of Focused Expertise

12k m²

12,000m² Center of Excellence

33+

Powered by 33 Advanced Equipment Units Precision at scale is only possible with the right technology.

. material

Raw material introduction

Sino Precision Technology Co., LTD.

From Raw Coil to Mission-Critical Core: An Integrated Manufacturing Journey

Advanced Stacking & Bonding Technologies: The Art of Assembly

The Foundation of Performance: Unrivaled Materials Expertise

Driving Innovation Across Demanding Sectors

.Product

Popular Products

Partner with Sino and transform your vision into a precisely engineered reality.

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Custom Gear Motors by Motor Type

We offer a full range of gear motors based on different motor technologies. Each platform can be customized in torque, speed, voltage, and mechanical configuration to match your application.

DC Gear Motor

Our DC gear motors combine brushed DC motors with compact gearboxes to deliver high torque at controlled low speeds. They are ideal for applications where simple drive electronics and cost-effective motion control are key, such as vending, small automation, and consumer equipment. Custom voltage, gear ratios, and shaft designs are available.

Brushless Gear Motor

Brushless gear motors pair BLDC motors with precision gearboxes to deliver quiet, efficient, and long-life operation. They are well suited for continuous-duty applications, tight space envelopes, and systems where maintenance-free operation is critical. Options include integrated drivers, hall sensors, and customized cabling.

Brushed DC Gear Motor

Our brushed DC gear motors provide a reliable, proven platform when cost, simplicity, and ease of control are top priorities. With a wide choice of gear ratios and motor sizes, we can fine-tune output speed and torque for mechanisms such as locks, actuators, and small medical or office equipment.

Coreless Gear Motor

Coreless gear motors use lightweight, low-inertia armatures to achieve fast response and smooth, precise motion. When coupled with gear reduction, they deliver accurate low-speed control with very compact size and minimal cogging. They are ideal for high-end instruments, robotics, and other precision motion systems that demand refined control.

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Custom Gear Motors by Gear Type

Choosing the right gear type is critical for performance, noise, efficiency, and cost. Istar Motor offers multiple gearbox designs to create the most suitable speed reducer motor for your project.

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Motor Gearbox Options

Every application needs a gearbox that fits its electrical and mechanical environment. Istar Motor offers multiple motor gearbox types that can be customized to your requirements.

DC Motor Gearbox

Our DC motor gearboxes are designed to pair with DC motors to form integrated gear motor assemblies. They support a wide range of input voltages, current limits, and duty cycles, making them suitable for battery-powered devices, automotive modules, and general automation.

AC Motor Gearbox

AC motor gearboxes are optimized for mains-powered equipment where robustness and simplicity are essential. They provide steady torque and long-life operation in fans, pumps, conveyors, and other industrial or commercial systems operating from AC power.

BLDC Gearbox

BLDC gearboxes are engineered for brushless DC motors, ensuring optimal shaft alignment, low noise, and high efficiency. When combined with electronic commutation and closed-loop control, they form high-performance motion systems that deliver precise speed and position control.

Coreless Motor Gearbox

Our coreless motor gearboxes are designed to preserve the responsiveness and low inertia of coreless motors while adding the torque multiplication and speed reduction your mechanism requires. They are ideal for precision instruments, optical systems, and lightweight robotic mechanisms.

.Contact us

Let's Build the Future of Motion, Together.

Your next breakthrough in electric motor performance starts with a superior magnetic core. Whether you have a complete design ready for quotation or are seeking an engineering partner to help optimize your concept, our team is ready to collaborate.
Partner with Sino and transform your vision into a precisely engineered reality.

.Advantage

Why Global OEMs Choose Istar Motor as
Their Gear Motor Supplier

When selecting a gear motor supplier, engineers and purchasing teams need low risk, predictable performance, and strong support. Istar Motor is built around those requirements.

Engineering-Driven Customization

We don’t just sell catalog parts—we help you engineer the right custom gear motor for your application. Our team works closely with your engineers on:

  • Voltage, speed, torque, and duty-cycle targets
  • Gear ratio and efficiency optimization
  • Noise, vibration, and lifetime requirements
  • Mechanical interface (shaft, flange, mounting) and wiring/connectors

You get a tailored gear reduction electric motor that aligns with your real-world constraints, not just a generic off-the-shelf option.

Reliable Quality and Process Control

With 30+ dedicated QC specialists, we use incoming inspection, in-process checks, and final performance tests to safeguard your product. Typical controls include:

  • Gear tooth inspection and backlash measurement
  • Noise and vibration testing
  • Load and endurance testing
  • 100% functional verification for custom projects

The result is a gear box motor you can integrate with confidence into high-value equipment.

Flexible Production and Cost Optimization

Whether you need small engineering lots, pilot runs, or large-scale production, Istar Motor can adapt to your schedule. We help you balance:

  • Performance vs. cost (materials, gear type, motor type)
  • Standard vs. customized components
  • Lead time vs. engineering complexity

This makes us an ideal gear motor supplier for long-term programs where stability, price control, and continuous improvement matter.

Global Support and On-Time Delivery

We don’t just sell catalog parts—we help you engineer the right custom gear motor for your application. Our team works closely with your engineers on:

We design our processes around export projects to the U.S., EU, and other developed markets. That includes clear technical documentation, custom labeling and packaging, and logistics coordination. Our goal is simple: your geared motor arrives when and how you expect,

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Our Custom Gear Motor Development Process

We follow a structured engineering process to reduce risk and shorten your time-to-market.

Requirements and Feasibility Study

We start with your electrical, mechanical, and environmental requirements—including torque/speed curves, load profiles, duty cycles, noise limits, and expected lifetime. Our engineers evaluate feasibility and propose suitable motor and gear platforms for your custom gear motor.

Co-Design and Optimization

Next, we work closely with your team to refine key parameters: gear ratios, motor selection, materials, bearings, lubrication, and thermal design. 3D models and technical drawings are shared for integration into your assembly.

Prototyping and Validation

We build prototypes for functional and life testing in your own system. Based on your feedback and test data, we fine-tune performance, noise, and manufacturability to ensure the gear box motor meets all critical specifications.

Mass Production and Continuous Support

Once the design is frozen, we transition to volume production with documented quality plans and traceability. Our team remains available to support design updates, cost reductions, and future platform extensions throughout the product life cycle.

.Custom

Our Custom Gear Motor Development Process

We follow a structured engineering process to reduce risk and shorten your time-to-market.

Requirements and Feasibility Study

We start with your electrical, mechanical, and environmental requirements—including torque/speed curves, load profiles, duty cycles, noise limits, and expected lifetime. Our engineers evaluate feasibility and propose suitable motor and gear platforms for your custom gear motor.

Co-Design and Optimization

Next, we work closely with your team to refine key parameters: gear ratios, motor selection, materials, bearings, lubrication, and thermal design. 3D models and technical drawings are shared for integration into your assembly.

Prototyping and Validation

We build prototypes for functional and life testing in your own system. Based on your feedback and test data, we fine-tune performance, noise, and manufacturability to ensure the gear box motor meets all critical specifications.

Mass Production and Continuous Support

Once the design is frozen, we transition to volume production with documented quality plans and traceability. Our team remains available to support design updates, cost reductions, and future platform extensions throughout the product life cycle.

.collaboration

Work with Istar Motor in Three Simple Steps

We make it straightforward to engage with a gear motor manufacturer and move quickly from idea to production.

01
Send Your Gear Motor Requirements
Share your basic requirements: target speed and torque, voltage, duty cycle, space constraints, and any special needs (noise, lifetime, certification, etc.). You can also send drawings, CAD models, or current motor samples.
02
Receive a Technical Proposal and Quote
Our engineers will review your information and propose a suitable custom gear motor configuration, including key parameters, estimated performance, lead times, and pricing. We will refine the proposal with you to ensure it fits both technical and commercial expectations.
03
Approve Samples and Launch Production
After you approve the design, we build samples for your evaluation. Once testing is successful, we move to mass production and establish a stable supply plan so that your equipment launches and continues running smoothly.

.FAQ

Frequently Asked Questions

Partner with Sino and transform your vision into a precisely engineered reality.

Q1. What information do you need to provide an accurate quotation?

To provide a comprehensive quote, we ideally need a 2D drawing (PDF) and a 3D model (STEP/IGES) of your stator/rotor design. Please also include material specifications, required tolerances, annual production volume, and any specific assembly or testing requirements. The more detail you provide, the more accurate our quote will be.

Q2. What are your typical lead times for prototypes and mass production?

 Our rapid prototyping service, using laser cutting or wire EDM, typically delivers initial samples within 7-21 days, depending on complexity and material availability. For mass production, lead times vary based on tooling requirements. Once tooling is complete and approved, production lead times are highly competitive and will be detailed in your formal quotation.

Q3. How do you protect our intellectual property (IP)?

We operate under a strict code of confidentiality. We are fully prepared to sign a Non-Disclosure Agreement (NDA) before reviewing any sensitive project details. Our internal data management systems are secure, and we have a long history of trusted collaboration with global technology leaders. Your designs are safe with us.

Q4. Can you assist with the design and engineering phase (DFM)?

Absolutely. We strongly encourage collaboration early in the design phase. Our engineers can provide Design for Manufacturability (DFM) feedback to help you optimize your design for cost-effectiveness, performance, and reliability. We can advise on material selection, tolerance stacking, and the ideal bonding method for your specific application.

Q5. What is the difference between Self-Bonding (Backlack) and Laser Welding?

Self-Bonding (Backlack) uses pre-coated laminations that are heated and pressed, forming a solid, seamless core with excellent magnetic properties and heat transfer. It's ideal for high-frequency applications. Laser Welding provides superior mechanical strength by creating a weld seam along the outside of the stack. It's excellent for very high-speed rotors but can create a small "short circuit" for eddy currents along the weld path. The best choice depends entirely on your motor's operating conditions and performance goals. Our experts can help you decide.

.Blog

Latest Blog Release

transformer core with hot joints
Engineers reviewing stator and rotor
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