The Case for 24V and 48V BLDC in Modern Industrial Automation

Industrial brushless DC motors rated for 24 V and 48 V bus voltages form the backbone of modern automation equipment, automated guided vehicles (AGVs), electric power tools, and industrial pumping systems. Compared to AC induction motors at equivalent power, 24 V/48 V BLDC units provide inherently variable-speed operation without a frequency inverter, yielding energy savings of 20–40% in partial-load duty cycles. Jiangsu Retek Motion Co., Ltd. manufactures an industrial BLDC series in frame sizes from 42 mm to 110 mm, with output power from 50 W to 1 500 W, and offers integrated planetary gearbox options for high-torque, low-speed applications.

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Introduction

Detailed Parameters and Performance Data

RETEK: 24V and 48V Brushless DC Motors for AGV, Automation, and Industrial Drive Systems

Jiangsu Retek Motion Co., Ltd. provides 24 V and 48 V industrial brushless DC motors for OEM equipment manufacturers where energy efficiency, variable-speed operation, and long service life are primary specifications. We supply motors in 42 mm to 110 mm frame sizes with output power up to 1 500 W, each engineered to the buyer's target speed-torque curve rather than selected from a fixed catalog rating. Our gearbox integration service delivers a complete motor-plus-reducer unit — pre-greased, pre-aligned, and dimensionally verified — reducing the assembly steps required on the buyer's production line. Class F insulation and IP65-rated housing options are standard selections for buyers deploying motors in humid, dusty, or washdown industrial environments.

Applications

Advanced Technology Highlights

Applications

  • Automated guided vehicles (AGVs) and AMRs requiring compact, high-efficiency drive motors
  • Industrial conveyor and sorting system drives
  • Electric power tool spindles (angle grinders, polishers, screwdrivers)
  • Hydraulic power unit (HPU) drives replacing AC motors for energy efficiency
  • Medical rehabilitation and assistive devices (exoskeleton joints, wheelchair drives)
  • HVAC valve actuators and damper drives

Technical Specifications

Industrial & Commercial Usage

Specifications

FeatureDetails
Voltage24 V / 36 V / 48 V DC
Frame Size42 mm – 110 mm square flange
Power Range50 W – 1 500 W
Speed Range500 – 6 000 RPM base; gearbox options available
TorqueUp to 25 N·m with matched planetary gearbox
Protection RatingIP44 standard; IP65 optional
FeedbackHall sensor + optional 1000 PPR encoder
Insulation ClassClass F (155 °C)
Efficiency85% – 92%
CertificationCE, RoHS, UL on request

Additional Information

Supplementary Details & Notes

Production and Customization Services

Retek Motion supports the full OEM development cycle for industrial BLDC motor programs, from initial sizing through production qualification.

  • Motor Sizing Review: Free application review service — buyer provides load torque, speed, duty cycle, voltage, and mounting envelope; Retek Motion returns a recommended frame size, winding specification, and efficiency estimate within 3–5 business days.
  • Planetary Gearbox Matching: Gearbox ratio, output shaft configuration, and mounting interface engineered to buyer's driven-load requirements; pre-assembled and backlash-measured before shipment.
  • Encoder Integration: 1000 PPR or 2500 PPR incremental encoders or magnetic absolute encoders mounted and wired to buyer-specified connector pinout; encoder calibration report included.
  • IP65 Sealing: Shaft seal upgrade and potted terminal box available for food, beverage, and outdoor industrial equipment deployments.
  • UL Certification Support: Motor construction data and winding insulation test reports provided to support buyer's UL listing application; UL Recognized Component marking available on request.
  • Production Batch Testing: 100% speed-load curve measurement and insulation resistance test performed on production motors; test record included with each shipment.

Service & Support

Advantages

  • Energy Efficiency: 85–92% efficiency at rated load; partial-load savings of up to 40% over equivalent AC-driven systems — measurable ROI within 12–18 months in continuous-duty applications.
  • Compact 48 V Architecture: Halves operating current versus 24 V at equivalent power, reducing wiring cross-section, connector size, and I²R heat losses across the harness.
  • Long Service Life: Brushless commutation exceeds 20 000 hours MTBF in controlled industrial environments.
  • Gearbox Integration: Matched planetary gearboxes (3:1 to 100:1 ratios) available as a bolt-on unit, shipped pre-greased and pre-aligned.
  • Encoder-Ready: Rear-shaft encoder mounting boss included as standard; 1000 PPR or 2500 PPR encoders drop in without machining.

Frequently Asked Questions

  • Q: Why choose 48 V over 24 V for my AGV drivetrain?
  • A: At the same output power, doubling the voltage halves operating current, reducing wiring cross-section, connector size, and I²R heat losses — directly lowering BOM cost and improving battery runtime per charge cycle.
  • Q: Can I pair your motor with a third-party motor controller?
  • A: Yes. Retek Motion provides detailed electrical parameter sheets compatible with major industrial BLDC controllers including Maxon ESCON, Kellys, and ODrive.
  • Q: What gearbox ratios are available and can they be customized?
  • A: Standard ratios are 3:1, 5:1, 10:1, 20:1, 50:1, and 100:1. Custom intermediate ratios are available for orders of 200 pcs or more with a 6–8-week tooling lead time.

Resources

Advanced Material Selection Guide

For 24 V and 48 V industrial BLDC motors, material selection governs efficiency at partial load, service life in the target environment, and total cost of ownership.

  • Magnet Grade — N38SH vs. N42SH: N38SH offers a lower cost with adequate flux density for most industrial BLDC applications below 100 °C operating temperature. N42SH provides 10% higher remanence (better efficiency) and is specified when motor frame size is constrained and maximum torque density is required within a fixed envelope.
  • Stator Lamination — 0.35 mm vs. 0.5 mm Silicon Steel: 0.35 mm laminations are standard for motors operating above 1 000 Hz electrical frequency, reducing eddy-current losses. 0.5 mm laminations are adequate for low-speed geared applications (below 500 Hz) and offer marginally lower material cost.
  • Winding Conductor — Round Wire vs. Rectangular (Flat) Wire: Round magnet wire is standard for all frame sizes. Rectangular-section (flat) wire windings improve slot fill factor from ~55% to ~75%, increasing copper cross-section per slot and reducing winding resistance — available as a premium option for high-efficiency AGV traction motors where battery range is critical.
  • Gearbox Material — Sintered vs. Machined Planet Gears: Sintered steel planet gears are cost-effective for light-duty conveyor and actuator applications. Precision-machined hardened steel (58–62 HRC) planet gears are required for high-cycle AGV traction drives where gear flank fatigue life exceeds 10 000 hours.
  • Insulation System — Class F vs. Class H: Class F (155 °C) is the standard selection for most industrial motors. Class H (180 °C) is specified for motors embedded in poorly ventilated enclosures, high-ambient-temperature factory environments, or applications where the motor runs continuously at near-rated current for extended periods.

About Jiangsu Retek Motion Co., Ltd.

Unlike other motor suppliers, Retek engineering system prevents the selling of our motors and components by catalogue as every model is customized for our customers. The customers are assured that every component they receive from Retek is designed with their exact specifications in mind. Our total solutions are a combination of our innovation and a close working partnership with our customers and suppliers.

As China Industrial Brushless DC Motors 24V 48V Manufacturers and Wholesale Industrial Brushless DC Motors 24V 48V OEM/ODM Suppliers, Retek business consists of three platforms: Motors, Die-Casting and CNC manufacturing and wire harness. Retek products are widely supplied for residential fans, vents, boats, airplanes, medical facilities, laboratory facilities, trucks and other automotive machines.

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