Planetary Gearmotors · Shenzhen, China

Planetary Gearmotors.
Delivery Made Simpler.

KEY-CRON is your product and supply-chain coordination partner for micro planetary gearmotors, gearboxes, and the surrounding components that bring a motion system to production.

6–38 mm micro planetary solutionsPrototype-friendly · Small batch welcomeProduct support → supplier coordination → delivery
KEY-CRON manufacturing coordination
Flagship range
Micro planetary gearmotors
Capabilities
Core service verticals, one integrated team
Middlemen — direct access to senior engineers
Full-cycle from pilot to mass production
Fuyong, Shenzhen — in the heart of manufacturing

About Us

We're a solution provider

01

End-to-End Solutions

Comprehensive, full-cycle support guiding your project seamlessly from initial concept to mass production. Our integrated services ensure a smooth journey from design to market.

02

Direct Expert Access

Work directly with a dedicated team of seasoned design, engineering, and manufacturing specialists. Clear communication, rapid problem-solving, and truly innovative outcomes — guaranteed.

03

Manufacturing Excellence

We leverage deep regional expertise to optimize your manufacturing processes and supply chain. High-quality results with enhanced speed and cost-effectiveness for your competitive edge.

Our Services

How we help you

01 — Service

Planetary Gearmotors & Gearboxes

Start with KEY-CRON's flagship micro planetary gearmotor and gearbox solutions, then use one team to coordinate the surrounding transmission components and production work your application requires.

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02 — Service

Sheet Metal

Enclosures, brackets, and structural frames — laser cutting, bending, welding, and surface finishing (powder coating, anodizing, electroplating). We match the right fabricator for your volume and tolerance requirements.

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03 — Service

Injection Molding

Structural and functional plastic parts from prototype to production. We coordinate mold development, trial runs, and quality sign-off so you don't need to manage the mold shop directly.

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04 — Service

Electronics Assembly

PCB sourcing, SMT soldering, wire harness processing, and full product assembly. We handle the supplier coordination so your electronics and mechanical parts arrive together and get assembled on schedule.

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05 — Service

Micro Pumps & Solenoid Valves

We source and coordinate micro air pumps and solenoid valves for products requiring precise fluid or airflow control — including medical devices, portable diagnostic tools, air quality monitors, and smart appliances. Typical specs range from 3V to 24V DC, flow rates from 0.5 to 20 L/min, and operating pressures up to 120 kPa. Custom voltage, tubing fittings, and PWM control interfaces are available on request.

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Communication Is Our Core Strength

We Speak Both
Product and Factory

Most delays and rework in manufacturing come from miscommunication. KEY-CRON bridges that gap — we understand your product goals and translate them into factory-executable requirements. Small teams get the coordination support they normally can't afford to hire.

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Flagship products

Planetary motion solutions, backed by coordinated delivery.

Start with the gearbox or gearmotor that fits your space. When your project needs more than one component, KEY-CRON coordinates the surrounding manufacturing work as well.

Micro Planetary Gearmotor
Flagship Product
Micro Planetary Gearmotor
6-38mm

Compact planetary reduction paired with a coreless brushless motor for space-constrained motion systems.

Request specifications →
Custom Planetary Gearbox
Flagship Product
Custom Planetary Gearbox
6-38mm

A planetary gearbox starting point for projects that need a tailored motor, output, or surrounding supply-chain support.

Discuss your application →
Precision Linear Actuator
Micro Transmission
Precision Linear Actuator
Gearbox Products
Micro Transmission
Gearbox Products
Micro Planetary Gearmotor
Flagship Product
Micro Planetary Gearmotor
6-38mm

Compact planetary reduction paired with a coreless brushless motor for space-constrained motion systems.

Request specifications →
Custom Planetary Gearbox
Flagship Product
Custom Planetary Gearbox
6-38mm

A planetary gearbox starting point for projects that need a tailored motor, output, or surrounding supply-chain support.

Discuss your application →
Precision Gear Products
Precision Components
Precision Gear Products
DIN Class 9
Speaker Plastic Housing
Injection Molded
Speaker Plastic Housing
Handheld Device Housing
Injection Molded
Handheld Device Housing
Ventilation Impeller
Injection Molded
Ventilation Impeller
Power Tool Body
Injection Molded
Power Tool Body
Electronic Device
Electronic Device
Electronic Device
Solenoid Valve
Pneumatic
Solenoid Valve

Application support

Start with the motion requirement, then coordinate the delivery.

These are common starting points for a planetary gearmotor discussion. Share the actual load, space, duty cycle, and system constraints so the selection can be verified for your application.

Automation & robotics

Compact automated mechanisms

For mechanisms where output torque and installation space need to be balanced, from compact actuators to small mobile or handling assemblies.

Selection focus: load inertia, acceleration, duty cycle, output interface, and available envelope.

Discuss an automation application →

Smart devices

Quiet, compact motion systems

For devices that need controlled motion in a limited enclosure and may require coordination of the gearbox, motor, housing, and adjacent components.

Selection focus: noise expectations, power source, packaging, and expected daily operating cycles.

Discuss a device application →

Instruments & equipment

Controlled positioning and drive functions

For equipment teams evaluating a compact planetary motion solution alongside the practical requirements of prototype and production delivery.

Selection focus: repeatability needs, backlash sensitivity, thermal environment, and validation requirements.

Discuss an equipment application →

Custom programs

A gearmotor is only one part of the build

When the project also requires gears, brackets, plastic parts, electronics, or assembly, KEY-CRON can coordinate the related manufacturing work around the primary motion component.

Selection focus: interfaces between suppliers, sample sequence, quality checkpoints, quantities, and delivery timing.

Discuss a coordinated program →

Frequently asked questions

The useful questions to answer before choosing a gearmotor.

A few starting points for product selection and coordinated manufacturing discussions.

What information is needed for a planetary gearmotor quotation?

The most useful starting information is the application, available installation space, target output speed, continuous and peak torque, voltage, quantity, and target timing. A drawing or photo is helpful when available.

Can KEY-CRON support a project before all parameters are known?

Yes. Start with the application and the constraints you know. KEY-CRON can help structure the selection discussion, then coordinate the next product and manufacturing steps as the requirements become clearer.

Does KEY-CRON only supply the gearmotor?

The planetary gearmotor or gearbox can be the primary component. When the project also needs related transmission parts, housings, electronics, or assembly, KEY-CRON can coordinate the relevant suppliers and delivery path.

Can I ask about a custom planetary gearbox or motor combination?

Yes. Describe the required output interface, motor preference, space constraints, performance targets, quantity, and timing. The final configuration should be confirmed against the applicable product data and testing.

How We Work

Five Steps From
Idea to Delivery

Most small teams struggle with supply chain coordination — chasing multiple factories, translating technical requirements, managing quality across vendors. KEY-CRON handles all of that. You focus on your product; we handle the manufacturing.

  • Step 1 — Requirements & Feasibility: Share your idea, sketches, or drawings. We assess what's buildable and map out a clear path forward.
  • Step 2 — Supplier Matching & Quotation: We identify the right supplier mix for your project across all required categories and provide a clear, itemized quote.
  • Step 3 — Prototyping & Sample Review: We coordinate sample production, consolidate quality feedback, and confirm the sample matches your requirements before you pay for volume.
  • Step 4 — Pilot Run & Stability Verification: Before committing to full production, we validate consistency, assembly fit, and delivery cadence.
  • Step 5 — Mass Production & Ongoing Support: We monitor production progress and outgoing quality. Your order ships on time.
Tell us about your project →
Manufacturing project coordination and quality follow-up

Beyond the gearmotor

One Motion Partner.
One Coordinated Delivery Path.

Choose KEY-CRON when you need more than a part number: we support the planetary motion solution, then coordinate the adjacent components and suppliers needed to move your product forward.

  • Gear Transmission: injection-molded gears, custom gearboxes, micro-drive assemblies — partners certified to ISO9001 & IATF16949
  • Sheet Metal: enclosures, brackets, structural frames — laser cutting, bending, welding, powder coating, anodizing
  • Injection Molding: structural and functional plastic parts — mold development, trial runs, and full production coordination
  • Electronics Assembly: PCB sourcing and soldering, wire harness processing, full product assembly for IoT and consumer electronics
Discuss your application More About Our Services →
Multi-category manufacturing supply chain coordination

What Clients Say

"Before KEY-CRON, we were managing three factories ourselves and everything was slipping. After handing coordination to their team, our prototype cycle was cut nearly in half. Most importantly — they actually understood what we were trying to build, and could explain our requirements to the factories in ways we simply couldn't."

Smart Hardware Startup
Product Lead, 2024

Product & supply-chain inquiry

Tell us what your motion system needs

Request specifications, a quote, or coordinated manufacturing support.

Location
Shenzhen, Guangdong, China

Response time

Share the details you have. We will route your inquiry to the right product or coordination contact.