AC Servo Motor 1300W 220V Pulse/RS485 Medical Drive
- Power Rating: 1300W / 220V AC
- Bus Protocol: RS485 / Pulse-Direction
- Target Application: Medical Equipment & High-Accuracy Positioning
Precision OEM Lineup
Featured Coreless & High-Precision Servo Motor Platforms
Engineered for surgical robotics, micro-fluidic pumps, lab automation, aerospace actuators, and high-torque RC mechanisms. Fully customizable windings, shaft configurations, and encoder gearhead integrations.
SG90 / MG90S 9g Micro Servo Motor PWM 180°
- Weight / Control: 9g Micro / PWM 180°
- Gear Topology: Plastic / Reinforced Metal Option
- Application: Compact Robotics & OEM Micro-Actuation
GXservo 30KG Waterproof Metal Gear Servo Motor
- Torque Output: 30 kg-cm Digital Control
- IP Enclosure Rating: Submersible Waterproof
- Gear Train: High-Strength Titanium/Steel Alloy
AC Servo Kit 750W 2.4N.m Integrated Controller & Cable
- Rating & Torque: 750W / 2.4 N.m Nominal
- Voltage: 220VAC Single/Three Phase
- Includes: 3m Shielded Cable & Matched Drive
High-Speed Robotics Motor w/ Encoder Feedback 15kg
- Peak Load: 15 kg-cm Torque Capacity
- Feedback: Integrated High-Resolution Position Encoder
- Application: Dynamics Bipedal Robots & Drones
35KG High-Torque Heavy Duty Micro Digital Servo
- Stall Torque: 35 kg-cm Ultra High Torque
- Case Material: CNC Machined Heat-Dissipating Aluminum
- Application: Heavy Industrial Manipulators & RC UAVs
25kg Semi-Aluminum Metal Gear Robotic Arm Servo
- Power Metric: 25 kg-cm Constant Output
- Enclosure: Hybrid Semi-Aluminum Heat-Sink Frame
- Control Interface: Standard PWM / Digital Control
Lichuan IP65 220V 3000RPM Servo & Driver Kit (200W-1000W)
- Speed & Protection: 3000 RPM / IP65 Dust & Water Proof
- Power Range: Scalable 200W, 400W, 750W to 1000W
- Kit Contents: Industrial Motor, Driver & Complete Harness
0 Cogging
Ironless Core Topology
< 5 ms
Mechanical Time Constant
92%+
Peak Electrical Efficiency
40+ Yrs
Engineering Legacy
Electromagnetic Physics & Architecture
Engineering Coreless Motor Technology: Why Ironless Windings Outperform Traditional Motors
Coreless DC and Brushless DC (BLDC) motors eliminate the laminated iron core from the rotor structure, substituting it with a self-supporting, skew-wound copper coil. This fundamental architectural shift unlocks unrivaled performance metrics for precision motion control.
Zero Cogging Torque (Smooth Motion)
Because there are no iron teeth in the rotor to interact with the permanent magnet poles, coreless motors suffer from zero magnetic preferred positions (cogging). This results in exceptionally smooth low-speed rotation, crucial for medical infusion pumps, surgical robotics, and optical tracking system lenses.
Ultra-Low Rotor Inertia & Dynamic Acceleration
The rotor consists purely of copper coils, synthetic resin, and a precision shaft, reducing the moment of inertia ($J_R$) by up to 80% compared to conventional iron-core armatures. Mechanical time constants ($\tau_m$) consistently fall below 5 milliseconds, enabling instantaneous start-stop dynamics and razor-sharp step response.
High Efficiency & Extended Battery Life
Eliminating iron hysteresis and eddy current losses within the rotor drastically reduces power dissipation, allowing coreless motors to achieve peak conversion efficiencies exceeding 90%. For portable medical instruments, handheld power tools, and battery-operated drones, this extends operating runtime significantly.
Coreless vs. Iron-Core Motor Architecture Comparison
| Technical Characteristic | Coreless (Ironless) Motor Topology | Standard Iron-Core Motor | Engineering Advantage for OEMs |
|---|---|---|---|
| Rotor Cogging Torque | Absolute Zero (0 mN.m) | Present (Magnetic preferred slots) | Eliminates ripple torque; ideal for ultra-precise micro-positioning. |
| Rotor Moment of Inertia ($J_R$) | Extremely Low ($10^{-7} \text{ kg}\cdot\text{m}^2$) | High (Heavy iron stack) | Instantaneous acceleration, high band-width servo loop control. |
| Electrical Time Constant ($\tau_e$) | Ultra-Low (< 0.1 ms) | Moderate to High (High inductance) | Minimal inductive arcing on brushes; extended commutation lifespan. |
| Thermal Dissipation Path | Through internal airgap & housing ring | Directly through outer stator iron stack | Requires precision thermal sizing for continuous overload conditions. |
| Power-to-Weight Ratio | Exceptional (> 500 W/kg) | Standard (< 200 W/kg) | Vital for weight-sensitive applications (aerospace, surgical handpieces). |
Global Market Foresight
Strategic Procurement Trends in China’s Coreless Motor Ecosystem
As global OEM manufacturing transitions toward automation, miniaturization, and surgical robotics, China's coreless motor supply chain is undergoing profound structural shifts. Procurement directors must navigate four key procurement trends over the next decade.
1. Automated Honeycomb Self-Supporting Coil Winding
Traditional manual oblique winding is rapidly being replaced by fully automated 6-axis CNC winding machines across leading Chinese factories. This transition delivers tight copper fill factors (up to 65%), eliminates inter-turn short circuits, and lowers production unit costs on volume orders above 10,000 units.
2. Upstream Rare-Earth Magnet Integration (NdFeB N52SH)
China controls over 70% of the world's rare-earth processing capacity. Premier coreless motor exporters directly partner with domestic NdFeB magnet foundries to secure ultra-high magnetic grade sintered Neodymium (such as N50EH or N52SH with thermal stability up to 200°C), ensuring long-term raw material price stabilization and continuous supply chain resilience.
3. Shift Toward Integrated Smart Servo Sub-Assemblies
Global OEMs no longer buy standalone coreless motors. Sourcing strategies now prioritize integrated mechatronic modules comprising a coreless BLDC motor, high-precision magnetic encoder (12-bit to 16-bit resolution), zero-backlash planetary gearhead, and CANopen/EtherCAT drive electronics consolidated into a single sub-assembly part number.
R&D Innovation Roadmap
Next-Gen Coreless Motor Technological Advancements
From sub-6mm micro-motors for endoscopic tools to ultra-high-speed coreless BLDC motors spinning at 100,000 RPM, Chinese engineering teams are breaking performance boundaries across three critical vectors.
Miniaturization & Extreme Form-Factors (Ø 4mm - 12mm)
Advancements in micro-laser welding, sub-millimeter jewel bearings, and ultra-fine enamelled wire (down to 0.02mm diameter) allow mass production of coreless motors with outer diameters as small as 4mm. These are critical for intraocular surgical tools, active endoscopes, and micro-fluidic dosing systems.
Advanced Commutation Metallurgy: Gold-Alloy vs. Copper-Graphite
For brushed coreless motors, brush material selection dictates operating lifespan:
• Precious Metal Commutation (Au/Ag/Pt): Low contact resistance, zero electrical noise, designed for low-current medical signal devices (>3,000 hours life).
• Copper-Graphite Commutation: Formulated for high continuous currents and heavy intermittent torque shocks, extending life in micro power tools.
Slotless BLDC Coreless Design & Autoclave Capabilities
Brushless coreless (slotless) architectures replace mechanical brushes with electronic commutation using Hall sensors or sensorless back-EMF algorithms. Coupled with specialized silicone potting compounds and ceramic ball bearings, modern coreless BLDC motors withstand up to 2,000 steam autoclave cycles (ISO 13485 compliant) for surgical handpieces.
E-E-A-T Enterprise Authority
Why Top Global Medical & Industrial OEMs Partner With Us
Combining 40 years of North American motion engineering support (headquartered in Houston, TX) with state-of-the-art automated production hubs in China, we deliver institutional reliability, rigorous quality control, and zero-defect manufacturing.
01
Application Sizing & FEA
We evaluate continuous torque, thermal dissipation, duty cycle profiles, and back-EMF constants using magnetic FEA simulation before prototyping.
02
ISO 13485 / IATF 16949
Strict quality management systems ensuring complete raw material traceability, 100% automated coil insulation check, and batch consistency.
03
Custom Tooling & Rapid Samples
Modified standard platforms reach sample stage in 3 to 5 weeks; clean-sheet bespoke windings and custom housings in 8 to 12 weeks.
04
Dynamometer & Life Testing
Every motor design undergoes rigorous thermal rise validation, acoustic noise spectrum analysis (<35dB), drop testing, and HALT endurance testing.
05
Dual-Source Buffer Inventory
Flexible procurement programs with VMI buffer stock options in US and European warehouse facilities to safeguard your assembly lines from supply shocks.
Engineering Procurement FAQ
Frequently Asked Questions for Coreless Motor Sourcing
Technical and commercial clarity for procurement directors, motion control design engineers, and global supply managers.
What is the Typical Minimum Order Quantity (MOQ) for Custom Coreless Motor Programs?
For slightly modified standard platforms (shaft length adjustment, custom gear ratio, custom connector, or specific winding turns), our MOQ typically begins at 250 to 500 units per year. For ground-up custom frame sizes, specialized lamination geometries, or custom bobbinless winding dies, MOQ starts at 1,000 units annually. Prototype and engineering validation lots (10 to 50 units) are fully supported during the initial design phase.
How Do Coreless Motors Handle Thermal Dissipation Compared to Iron-Core Motors?
Because the copper coil is suspended in the airgap without direct conductive metallic contact to a heavy outer iron stator, the internal thermal resistance ($R_{th1}$) between winding and housing is higher than in iron-core motors. To manage heat in continuous high-load applications, we implement phase-change potting materials, high thermal conductivity aluminum casings, forced-air cooling channels, or active temperature monitoring via embedded NTC thermistors.
Can You Provide Integrated Gearboxes and Encoders for Small Coreless Motors?
Yes. We specialize in complete precision motion sub-assemblies. We offer integrated planetary gearheads (precision metallic or low-noise polymer gears from 6mm to 42mm diameter) with backlash as low as 0.5 degrees, as well as optical and magnetic incremental/absolute micro-encoders offering resolutions up to 4096 counts per revolution (CPR).
What Quality Certifications and Compliance Standards Are Maintained?
Our manufacturing facilities operate under ISO 9001:2015, ISO 13485 (Medical Devices), and IATF 16949 (Automotive Quality Systems). All coreless motor lines comply strictly with EU Directive RoHS 3 (2015/863/EU), REACH regulations, and carry CE and UL insulation system recognitions (Class B, Class F, or Class H up to 180°C).
How Long Does the Custom Sample Development Process Take?
Sample turnaround timelines depend on customization depth:
• Modified Standard (Winding/Shaft/Cable): 3 to 5 weeks.
• Custom Gearbox Integration / Special Encoder: 6 to 8 weeks.
• Full Custom Mechanical & Electromagnetic Architecture: 10 to 14 weeks including DFM, FEA review, tooling production, and full laboratory performance verification.
• Modified Standard (Winding/Shaft/Cable): 3 to 5 weeks.
• Custom Gearbox Integration / Special Encoder: 6 to 8 weeks.
• Full Custom Mechanical & Electromagnetic Architecture: 10 to 14 weeks including DFM, FEA review, tooling production, and full laboratory performance verification.
How Do You Guarantee Batch-to-Batch Torque Constant ($K_t$) and Speed Constant ($K_n$) Consistency?
We employ 100% automated CNC coil winding and tensioning control, ensuring identical copper turn density and resistance across production lots. Permanent NdFeB magnets undergo automated magnetic flux sorting prior to assembly. Final test benches perform 100% end-of-line (EOL) automated testing for no-load current, terminal resistance, phase inductance, back-EMF constant ($K_e$), and acoustic noise levels.
Partner with China's Premier Coreless Motor Engineering Experts
Whether you require a high-reliability surgical motor, a custom precision servo kit, or high-volume OEM cost-down restructuring, our application engineering team in Houston and China is ready to assist.