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Istar designs and manufactures robust dc gear motor assemblies that integrate brushed or brushless motors with optimized gear trains. We focus on delivering predictable performance for OEMs requiring reliable motion in tight spaces, without the constraints of off-the-shelf standard parts.
Select the architecture that fits your specific torque, noise, and space constraints.
Diameter: 6mm – 16mm.
Focus: High precision, low weight, miniature footprint.
Ideal for: Medical devices, electronic locks, optical equipment.
Diameter: 20mm – 37mm.
Focus: Balance of cost, noise performance, and durability.
Ideal for: Vending machines, automated curtains, home appliances.
Diameter: 42mm – 60mm+.
Focus: Shock resistance, high radial load capacity, continuous duty.
Ideal for: AGVs, conveyers, heavy-duty actuators.
Diameter: 42mm – 60mm+.
Focus: Shock resistance, high radial load capacity, continuous duty.
Ideal for: AGVs, conveyers, heavy-duty actuators.
Representative configurations to demonstrate customization capabilities. (Note: These are platform examples. We manufacture to your specific torque and speed curves.)
Best for: Intelligent security locks and insulin pumps.
Customizable options: Gear material (plastic/metal mix for noise reduction), shaft D-cut.
Who it’s for: Medical and security device engineers needing sub-12mm widths.
Best for: Robotics grippers requiring fast response and low inertia.
Customizable options: Coreless motor winding, precious metal commutation.
Who it’s for: Robotics OEMs prioritizing efficiency and battery life.
Best for: Valve actuators and paper feeders.
Customizable options: Off-center output shaft, voltage (12V/24V), suppression capacitors.
Who it’s for: Automation designers looking for cost-effective torque.
Best for: Industrial winches and robotics chassis.
Customizable options: Ball bearings on output, hardened steel gears, IP54 sealing.
Who it’s for: Industrial equipment manufacturers needing high shock load resistance.
Best for: Conveyor belts and applications requiring self-locking.
Customizable options: Dual output shaft, 90-degree orientation.
Who it’s for: Engineers with strict lengthwise space constraints.
Proven integration across demanding industries.
We supply the geared dc motor technology behind critical movement in automation and daily life.
Peristaltic pumps, surgical tools, and drug delivery systems requiring precise dosing.
Conveyor diverters, AGV wheel drives, and robotic end-effectors.
Electronic deadbolts, motorized furniture, and automated window treatments.
Seat adjustment mechanisms, trunk latches, and HVAC actuators.
ATM cash dispensers, receipt printers, and vending mechanisms.
Technical partnership that goes beyond the catalog.
As a specialized dc gear motor manufacturer, Istar bridges the gap between low-cost components and high-end custom engineering.
We verify gear strength calculations and motor curves before prototyping.
Reliable sourcing of magnets, copper, and steel ensures we remain a consistent dc gear motor supplier even during market fluctuations.
100% end-of-line testing for current, speed, and noise; gearboxes are audited for backlash and grease distribution.
You speak directly with technical sales who understand inductance, gear efficiency, and duty cycles.
A transparent process to move from concept to mass production.
Send us your required torque, speed, voltage, and space envelope.
We select the optimal motor-gearbox combination and provide a theoretical curve.
We build samples (usually within 7-10 days) for your bench testing.
You test the sample; we iterate on winding or gear ratio if necessary.
Small batch production to verify process stability and consistency.
Full manufacturing with agreed QA standards and logistics scheduling.
A transparent process to move from concept to mass production.
Send us your required torque, speed, voltage, and space envelope.
We select the optimal motor-gearbox combination and provide a theoretical curve.
We build samples (usually within 7-10 days) for your bench testing.
You test the sample; we iterate on winding or gear ratio if necessary.
Small batch production to verify process stability and consistency.
Full manufacturing with agreed QA standards and logistics scheduling.
Critical factors to consider to avoid over-engineering or premature failure.
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.
Yes. As a flexible dc gear motor manufacturer, we frequently customize output shafts. Options include D-cut, keyway, cross-drilled holes, threaded shafts, or specific lengths to interface with your mechanics.
Life span depends on load and speed. A typical brushed motor with metal gears may last 2,000 to 4,000 hours under rated load. For applications requiring 10,000+ hours, we recommend a brushless (BLDC) solution.
Yes, we produce our gear trains to control quality and cost. This makes us a competitive dc gear motor supplier for OEMs who need specific gear ratios that aren't available in standard catalogs.
A dc gear motor with a planetary gearbox shares the load across multiple planet gears, providing higher torque capacity and better durability in a smaller package compared to spur gears. However, spur gears are generally quieter and more cost-effective for low-torque applications.
Absolutely. China is the global hub for precision motor manufacturing. We utilize imported Swiss and Japanese gear hobbing machines to ensure our tolerances match Western standards, offering a high performance-to-cost ratio.
Yes. We can integrate magnetic or optical encoders for speed/position feedback. Electromagnetic brakes can also be added for "power-off" holding torque applications.
For standard configurable models, our MOQ is low (typically 50-100 units). For highly custom tooling or non-standard windings, the MOQ may start at 500-1,000 units.
Standard industrial gearboxes have some backlash (1-3 degrees). For precision positioning applications, we can assemble "reduced backlash" versions using tighter tolerance gears, though this may impact cost.
Technically yes, but it will run twice as fast and may overheat or exceed the gearbox's speed limit. It is better to request a 24V winding modification so the small geared dc motor operates efficiently at your supply voltage.
Yes. We use varying gear materials (combining engineering plastics with metal) and specialized grease to dampen vibration, making them suitable for patient-environment medical devices.
Get a reliable drive solution tailored to your product’s specific load and life requirements.
