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What Makes KEYA DC Servo Motors Different
Technical Specifications
Key Features & Patented Technology
Size Range & Selection Guide
Robot Applications
OEM Customization & How to Order
Frequently Asked Questions
When you're designing a mobile robot, the drive motor isn't just a component — it's the difference between a machine that works reliably in the field and one that fails under load. KEYA DC brushless servo motors are purpose-built for autonomous mobile platforms that demand precision, durability, and compact integration.
Every KEYA motor is built around three design principles:
Thermal-first engineering — Multi-slot stator geometry and finned aluminum housing maximize heat dissipation, keeping temperature rise slow even under continuous-duty cycles. This means longer runtime between cooldown pauses for your AGV fleet.
Low-cogging torque by design — The multi-slot pole configuration inherently minimizes pulsation torque. Your robot moves smoothly at low speeds without the jerky motion that degrades navigation accuracy and payload stability.
Modular platform approach — Rather than designing a unique motor for every robot, we built a single platform spanning 7 flange sizes. You scale up or down within the same electrical and mechanical interface — shorter integration time, fewer supplier relationships to manage.
The KEYA DC brushless servo motor series covers a broad performance envelope. Below are the full specifications across the product line.
Parameter | Specification |
|---|---|
Motor Type | Brushless DC Servo Motor (BLDC) |
Rated Voltage | 12VDC — 96VDC |
Rated Speed | 1500 RPM / 3000 RPM |
Rated Power | 50W — 15 KW |
Protection Level | IP55 — IP67 |
Flange Size | 40 / 60 / 80 / 110 / 130 / 200 / 215 mm |
Stator Insulation | H-class enameled wire (180°C rating) |
Encoder Options | Incremental / Absolute / Hall sensor (customizable) |
Rotor Technology | Patented — ZL201620037092.7 |
Beyond the numbers, here's what each of these features means for your robot's real-world performance.
Heat is the enemy of motor longevity. The KEYA stator uses H-class enameled wire rated for continuous operation at 180°C, paired with an anodized aluminum housing engineered for rapid heat conduction. The multi-fin body design increases surface area for passive cooling. The result: slower temperature rise under load, higher continuous torque output, and a longer service life — critical for AGV fleets running 24/7 in warehouse environments.
Conventional BLDC motors exhibit cogging torque — a jerky, step-like motion at low RPM caused by magnetic attraction between rotor magnets and stator slots. KEYA's multi-slot pole geometry inherently reduces this pulsation, delivering smooth rotation even at crawl speeds. For mobile robots, this translates to precise navigation, stable payload handling, and less vibration transmitted to sensitive onboard sensors like LiDAR and cameras.
Not all robots work in climate-controlled warehouses. Agricultural robots face dust, moisture, and pesticide exposure. Firefighting robots confront direct water spray. Outdoor AGVs operate in rain. KEYA motors are available with IP55 to IP67 sealing — from dust-protected to fully submersible-rated — so you choose the protection level that matches your deployment environment, without over-engineering or under-specifying.
Mobile robots face variable loads: climbing ramps, crossing thresholds, carrying uneven payloads. The H-class enameled wire stator provides substantial overload headroom, handling short-duration current spikes without insulation breakdown. This means your robot can push through temporary resistance without triggering a thermal shutdown.
The rotor is the heart of any servo motor, and it's where most failures originate under dynamic loading. Our national-patented rotor design addresses rotor imbalance and mechanical resonance at high speed, delivering consistent performance whether the motor is driving a 40mm mower wheel hub or a 215mm heavy AGV track sprocket.
One platform, seven sizes. Choose the flange that fits your chassis — all motors share the same electrical interface and control architecture.
Standard flange sizes: 40mm · 60mm · 80mm · 110mm · 130mm · 200mm · 215mm
Flange Size | Typical Power | Best For |
|---|---|---|
40mm | 50W — 200W | Small service robots, compact AGV wheels, medical equipment |
60mm | 200W — 400W | Light delivery robots, inspection robots, picking robot joints |
80mm | 400W — 1KW | Mid-size AGV drive wheels, mowing robot tracks, pesticide sprayers |
110mm | 1KW — 3KW | Full-size AGV, firefighting robot drive, cobot base drives |
130mm | 3KW — 5KW | Heavy AGV, outdoor logistics robots, aerial work platform traction |
200mm | 5KW — 10KW | Large engineering machinery, heavy transport AGV, industrial automation |
215mm | 10KW — 15KW | Maximum-torque applications, heavy construction robotics, aerospace ground equipment |
All sizes share the same KEYA control architecture — same commutation logic, same feedback protocols, same mounting philosophy. This means when you scale your robot design from a small indoor unit to a heavy outdoor platform, you don't need to redo your entire drive system integration.
KEYA DC servo motors are not lab prototypes — they are deployed in real-world autonomous systems across agriculture, logistics, firefighting, and industrial automation.
Agricultural Robotics
Orchard mowing robots, greenhouse picking platforms, and pesticide-spraying UGVs all rely on KEYA drive motors. The IP65+ sealing handles dust, moisture, and chemical exposure. Low-speed smoothness ensures the robot doesn't damage crops or spill payload.
Firefighting robots operate in the harshest conditions imaginable: extreme heat, direct water jets, and debris. KEYA's IP67-rated motors with H-class insulation continue delivering torque when it matters most. The patented rotor maintains stability even when the robot is recoiling from high-pressure water cannon discharge.
From compact bin-carrying AMRs to heavy industrial transport AGVs moving steel plates, KEYA motors cover the full logistics spectrum. Our 40mm motors power lightweight picking robots navigating narrow greenhouse aisles; our 215mm motors drive multi-ton outdoor AGVs on uneven terrain.
Scissor lifts, boom lifts, and tracked aerial platforms use KEYA motors for both traction drive and lift actuation. The wide voltage range (12–96VDC) matches diverse battery configurations, and the compact flange design fits within the tight packaging constraints of mobile elevating work platforms (MEWPs).
Mowing Robots — orchard and turf maintenance
Firefighting Robots — high-pressure water cannon platforms
Pesticide Spraying Robots — agricultural UGV misting systems
Picking Robots — greenhouse harvesting automation
AGV / AMR — warehouse logistics and material handling
Aerial Work Platforms — scissor lifts, boom lifts, MEWPs
Engineering Machinery — construction and heavy equipment
Medical Equipment — precision positioning systems
Aerospace Ground Support — high-reliability drive systems
Every robot is different. That's why KEYA motors are built to adapt — not the other way around.
Voltage — Any value within 12–96VDC range, optimized for your battery system
Shaft diameter & length — Match your existing gearbox, sprocket, or wheel hub
Connector type — MIL-spec, M12, Deutsch, or your specified connector
Encoder resolution — Incremental (100–5000 PPR), absolute, or Hall-only
Mounting pattern — Custom bolt circle and flange dimensions
Brake option — Integrated electromagnetic holding brake
Cable length & exit direction — Axial or radial, custom length
Send your requirements: voltage, power, speed, flange size, environmental conditions
Our engineering team reviews and proposes the closest standard platform motor
Customizations are quoted — usually 7–10 business days for prototypes
Sample approval before mass production
Sample orders (1–5 units) are available for evaluation. Production MOQ depends on the customization level — standard catalog motors have lower MOQ than fully custom designs. Contact us for a specific quote.
Standard motors: 2–3 weeks. Custom OEM motors: 4–6 weeks after prototype approval. We maintain buffer stock for popular sizes (80mm, 110mm, 130mm) for faster turnaround.
Yes. KEYA offers compatible servo drives for the full power range. We can ship motor + driver as a tested pair, or you can use your own CANopen/EtherCAT-compatible drive.
CE and RoHS certified. Additional certifications (UL, ATEX for hazardous environments) available upon request for qualified OEM projects.
STEP and IGES files are available for all standard flange sizes after NDA signing. Contact us with your flange size requirements.
Tell us your voltage, power, speed, and flange requirements — our engineering team will respond with a tailored proposal within 24 hours.
