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HELI High Torque Brushless Motors: DC Solutions for High-Load Applications

HELI high-torque brushless motors are engineered for demanding applications requiring higher torque output within strict speed, size, voltage, and environmental limits. We support custom electrical and mechanical adaptations, from prototype development to volume production.

High-Torque Brushless Servo Motor
Engineered for applications demanding high torque-to-weight ratios and precise motion control, the High-Torque Brushless Servo Motor combines multi-pole permanent magnet rotor geometry with advanced
High-Torque Heavy-Duty Brushless Motor
Engineered for continuous heavy industrial loads, this high-torque brushless motor utilizes a multi-pole outer rotor topology combined with high-grade rare-earth permanent magnets to deliver
High-Torque High-Efficiency Brushless Motor
The High-Torque High-Efficiency Brushless Motor is engineered for continuous industrial duty cycles, delivering high power density through optimized magnetic circuit design and low-loss silicon steel
High-Torque Low-Speed Brushless Motor
The High-Torque Low-Speed Brushless Motor utilizes an optimized multi-pole electromagnetic architecture combined with high-energy NdFeB permanent magnets to generate high torque density directly at
High-Torque High-Power Brushless Motor
Engineered for demanding industrial automation and robotics, this high-torque high-power brushless motor combines rare-earth permanent magnets, optimized electromagnetic slot-pole configurations, and
High-Torque Brushless DC Motor
Engineered for demanding industrial motion applications requiring high power density and precise torque delivery, this high-torque brushless DC motor combines multi-polar rotor topologies with

Why Choose HELI

Direct Factory Manufacturing

Complete vertical integration from lamination stamping and CNC machining to winding, magnet insertion, and final assembly under strict ISO quality standards.

Application-Driven Engineering

Motors engineered around specific load profiles, duty cycles, and spatial constraints rather than forcing catalog compromises into custom machinery.

Rigorous Performance Validation

Every production lot undergoes automated back-EMF testing, dynamic balancing, thermal endurance profiling, and torque ripple measurement.

Reliable Supply Chain Continuity

Scalable manufacturing capacity, dedicated raw material stockpiling, and predictable lead times tailored for global OEM production schedules.

Key Motor Specifications

Parameter	Specification & Typical Data Range
Rated Torque	0.1 Nm to 2.3 Nm (Customizable up to higher limits)
Peak Torque	Up to 3 times Rated Torque (Short-duration)
Rated Speed	1,000 RPM to 10,000 RPM
Maximum Speed	Up to 15,000 RPM (Application dependent)
Rated Power	50W to 1,500W
Rated Voltage	12V DC, 24V DC, 48V DC (Customizable)
Rated Current	2A to 30A (Dependent on voltage and load)
Efficiency	85 percent to 92 percent (Depending on design)
Motor Diameter	30mm to 120mm
Motor Length	40mm to 200mm
Shaft Dimensions	Diameter 4mm to 25mm (Custom length and geometry)
Feedback Method	Hall Sensor or Sensorless
Duty Cycle	Continuous (S1) or Intermittent (S3 to S8)
Operating Temperature	-20°C to +85°C (High-temp options available)

Applications

01.

Industrial Robotics & Automation

Powers multi-axis robotic joints and automated guided vehicles requiring high acceleration rates, instant directional changes, and high holding torque.

02.

Material Handling & Intralogistics

Drives heavy-duty conveyor systems, sorting mechanisms, and motorized pallet jacks operating under continuous duty cycles.

03.

Medical & Laboratory Equipment

Operates high-precision surgical robotic instruments, diagnostic imaging equipment, and laboratory centrifuge drives requiring low acoustic noise and strict reliability.

04.

Electric Mobility & Actuation

Drives heavy electric utility vehicles, industrial valve actuators, and mobility assistance de

Why High Torque Matters

Elimination of Gearbox Redundancy

High-torque brushless motors allow direct-drive configurations, removing mechanical gear reducers, eliminating backlash, reducing system complexity, and lowering mechanical maintenance overhead.

Dynamic Response Under Load

High torque-to-inertia ratios enable rapid acceleration and deceleration profiles, reducing cycle times in high-throughput automation machinery.

High Vibration Resistant DC Brushless Motor

Energy Efficiency at Standstill

Sustained holding torque without excessive thermal runaway allows continuous static load positioning with lower electrical power consumption.

Space-Constrained Power Delivery

Delivering high torque output within compact frame sizes solves tight spatial integration challenges in modern robotic joints and embedded machinery.

Customization Options

Mechanical Interface Modification

Custom shaft diameters, dual-shaft extensions, custom keyways, flat spots, splines, and specialized aluminum or steel housing flange dimensions.

Electrical Winding Adaptation

Customized stator winding configurations tailored to specific bus voltages and target speed-torque operating curves.

Thermal & Environmental Hardening

Upgraded insulation classes, specialized shaft seals, vacuum potting for moisture protection, and corrosion-resistant coatings for harsh operational environments.

Connector & Cabling Integration

Custom lead wire lengths, high-temperature jacketing, sealed industrial connectors, and integrated PCB terminal boards.

Selection Guide

Define Load and Duty Cycle

Determine continuous torque, peak torque, operational speed, and duty cycle profiles required by the application.

Evaluate Thermal Constraints

Assess ambient operating temperature, enclosure ventilation, and cooling constraints to calculate permissible winding temperature rises.

Select Frame Size and Voltage

Match physical dimensional limits with available system DC bus voltage to establish baseline motor geometry.

Determine Feedback Requirements

Identify control loop accuracy needs, selecting appropriate Hall sensors, incremental encoders, or absolute encoders for the drive electronics.

Manufacturing Capability

Automated CNC Stator Winding

High-precision multi-axis winding machines ensure uniform copper distribution, high slot fill, and consistent electrical resistance across production lots.

Vacuum Pressure Impregnation (VPI)

Advanced varnish application and vacuum curing lock winding turns firmly in place, improving dielectric strength and thermal dissipation.

Automated Rotor Assembly & Magnet Bonding

Precision magnet insertion fixtures and automated dispensing systems guarantee uniform airgap geometry and mechanical integrity at high rotational speeds.

High Temperature Resistant Micro DC Motor

Precision Machining Cells

In-house CNC turning and milling centers fabricate custom motor housings and end-bells with tight geometric tolerances.

Testing & Quality Control

Automated Back-EMF & Electrical Testing

100% factory inspection of phase resistance, inductance, dielectric withstand voltage, and back-EMF symmetry.

Dynamic Load & Torque Testing

Computerized dynamometer test benches verify speed-torque curves, efficiency maps, and thermal endurance under simulated working loads.

Vibration & Noise Analysis

Laser vibrometry and acoustic chambers measure structural vibration frequencies and operational noise signatures.

Dimensional Inspection

Coordinate Measuring Machines verify critical mounting dimensions, pilot diameters, and shaft runout tolerances against engineering drawings.

Packaging and Logistics

Customized Industrial Packaging

Individual foam-molded cavities secure motor shafts and machined faces, preventing transit shock, impact damage, and moisture ingress.

Export-Grade Palletization

Secure crating and moisture-barrier wrapping designed for international sea and air freight logistics compliance.

Traceability Labeling

Detailed barcoding on outer cartons indicates part numbers, lot codes, production dates, and electrical serialization for complete supply chain transparency.

Our Certificate

Frequently Asked Questions

Q: What is the typical lead time for custom high-torque brushless motor prototypes?

A: Standard custom prototype development and manufacturing take between three to four weeks, depending on mechanical and electrical modification complexity.

Q: Can these motors operate without a gearbox in high-load applications?

A: Yes. High torque density enables direct-drive operation in many automation axes, eliminating gear reduction, backlash, and mechanical maintenance overhead.

Q: What feedback devices can be integrated into the motor housing?

A: Motors support Hall-effect sensors, incremental optical encoders, absolute magnetic encoders, and custom resolver integrations based on drive controller compatibility.

Q: How is motor thermal management handled under continuous heavy loads?

A: Thermal optimization relies on high slot-fill copper windings, high-temperature insulation materials, and conductive housing designs that dissipate heat efficiently.

Q: What is the minimum order quantity for custom-engineered motor configurations?

A: Flexible minimum order quantities apply to engineering development batches, supporting pilot runs before transitioning to volume serial production.

Send Your Motor Requirements

Required Technical Inputs: Share your target torque, operating RPM, DC voltage, current, power, dimensions, shaft layout, control method, and duty cycle.
Evaluation Startpoints: An existing motor sample, technical drawing, specification sheet, or basic application description is sufficient to begin technical evaluation.
Next Steps: Request a custom motor evaluation to accelerate your project development cycle.

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