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HJ-BLD45
Zhong Hua Jiang
The Zhong Hua Jiang HJ-BLD45 high-suction vacuum cleaner motor is designed for compact and battery-powered cleaning equipment. With a rated voltage of 12VDC, a published suction-pressure figure of up to 20kPa, high-speed operation and a dedicated drive control board, it is intended for integration into handheld vacuum cleaners, automotive cleaning equipment and OEM suction assemblies.
The control board offers high- and low-power operation, PWM speed regulation, FG speed feedback, braking shutdown and electrical protection functions. OEM buyers should confirm the motor, impeller, airflow path, battery supply and control interface against their complete product design before production integration.
Request Motor Specifications & Quotation
The product information states suction pressure of up to 20kPa for suitable vacuum cleaner assemblies. This makes the motor a candidate for systems designed to collect dust, grit, food particles and pet hair. Actual cleaning performance also depends on the fan arrangement, airflow, filter resistance, nozzle and enclosure design.
The documented operating speeds are 63,000rpm in the 36W low-power range and 95,000rpm in the high-power range identified as 140W in the speed data. Pressure and speed values should be evaluated at their stated test conditions when comparing motors for an OEM design.
The following values describe the motor and associated drive control board as published in the product information. Power and speed entries are retained according to their original labels; confirm the rated-current and power test conditions for the selected assembly.
| Electrical Category | Value |
|---|---|
| Rated Voltage | 12VDC |
| Voltage Operating Range | 9–16.5VDC |
| Rated High / Low Power | 145W ±5% / 36W ±5% (published values) |
| Maximum Operating Current | 10A (published value) |
| Low-Power Consumption Current | ≤30μA |
| Starting Voltage | 9VDC |
| Rated Speed | Low range, 36W: 63,000rpm; high range, 140W: 95,000rpm |
For power-supply and battery-pack sizing, verify the actual input-current profile, continuous-duty capability and peak-load requirements. The listed 145W high-power rating, 140W high-range operating point and 10A maximum operating-current entry require confirmation of their respective conditions.
The drive board is intended for external on/off and speed commands within a compatible battery-powered vacuum cleaner system. The original functional requirements are retained below for engineering review.
| Function | Requirement |
|---|---|
| On/Off Control | Switch on/off is controlled by a battery-pack microswitch. |
| High/Low Speed Selection | Controlled by PWM through a 4-pin motor-interface signal connection: FG, PWM, EN and GND. |
| FG Speed Feedback | During normal operation, FG provides a square-wave TTL-level rotational speed signal, described as a signal per motor revolution. |
| PWM Control Range | Published speed-control power range: 40–140W. |
| Shutdown | Braking function on shutdown. |
| PWM Duty Cycle | 10%–100%. |
| Life Test | ≥1,000 hours (published life-test requirement). |
| Power-On State | Default off state after power-on, low-power consumption of 30μA and PWM control mode activated. |
The 4-pin interface should be connected only after confirming the pin order, signal voltage, controller logic and power arrangement for the actual board revision. The life-test figure is a reported test requirement, not an unconditional service-life guarantee.
The published board protection functions cover supply-voltage faults, excessive current, electrical shorts, blockage and overspeed conditions. The thresholds below are provided for technical evaluation; protection behavior must be validated in the completed cleaning device.
| Protection Function | Published Trigger / Response |
|---|---|
| Undervoltage Protection | 8VDC ±0.5V |
| Overvoltage Protection | 16.5VDC ±0.5V |
| Overcurrent Protection | 17A |
| Motor / Phase-Line Short-Circuit Protection | Supported |
| Blocking Protection | Blocking holes for 3–5 seconds triggers shutdown. |
| Overspeed Protection | >160,000rpm at 0.3 seconds; >120,000rpm at 4 seconds. |
The published 17A overcurrent-protection threshold is distinct from the 10A maximum operating-current entry. Battery protection, wiring, mechanical safety and thermal management must be assessed at system level by the equipment manufacturer.
Compact high-suction application: Published suction pressure up to 20kPa for suitable cleaning-device assemblies.
12VDC supply: Intended for compatible battery-powered and portable vacuum cleaner systems.
High-speed operation: Listed speed of 95,000rpm in the 140W high-power operating range.
Variable control: PWM duty-cycle adjustment and high/low operation for different cleaning modes.
Speed monitoring: FG output allows a compatible controller to receive rotational feedback.
Low-power state: Published standby consumption of up to 30μA under the identified operating conditions.
Drive-board functions: Braking shutdown and multiple electrical and operating protection features.
OEM integration: Relevant to vacuum cleaner brands, motor assembly buyers and cleaning-device engineering teams.
This high-speed suction motor can be evaluated for the following product categories where its electrical, mechanical and airflow characteristics match the finished equipment:
Handheld vacuum cleaners
Portable automotive vacuum cleaners
Battery-powered vacuum cleaner systems
Compact cleaning equipment
Pet hair cleaning devices
OEM vacuum motor and fan assemblies
Customized 12V high-suction cleaning devices
For motor evaluation or purchasing inquiries, provide the intended cleaner type, available battery voltage, required suction pressure and airflow, duty cycle, motor mounting space, controller interface and expected purchasing quantity. Confirm motor dimensions, impeller compatibility, thermal limits and the required protection strategy before finalizing an equipment design.
A complete OEM assessment should include the performance curve under the actual filter and airflow resistance, electrical-current measurements at the intended operating mode, and the pinout and signal requirements of the drive board.
Discuss OEM Motor Integration & Supply
The published rated voltage is 12VDC, with an operating range of 9–16.5VDC and a starting voltage of 9VDC. The complete battery and controller design must also meet the motor's current requirements.
The product information states suction pressure of up to 20kPa. Actual pressure and airflow in a finished cleaner depend on the fan, housing, filtration system and test conditions.
The published speed table lists 63,000rpm at 36W in the low range and 95,000rpm at 140W in the high range. A separate electrical rating lists 145W ±5% for high power; confirm the applicable test conditions before motor selection.
Yes. The published PWM duty-cycle range is 10%–100%, and the stated control power range is 40–140W. Final speed behavior depends on the configured controller and connected motor.
The original board description identifies FG, PWM, EN and GND. FG provides rotational speed feedback, while PWM and EN support control functions. Confirm pin order and electrical signal levels for the exact board revision before connection.
The published functions include undervoltage, overvoltage, overcurrent, motor or phase-line short-circuit, blocking and overspeed protection. Trigger values are listed in the protection table above.
The drive-board requirements list a life test of at least 1,000 hours. This is a reported test requirement and should not be interpreted as a guaranteed operating life for every completed vacuum cleaner design.
Portable automotive cleaners are among the listed applications. OEM suitability depends on power-supply capacity, dimensions, mounting, airflow design, operating duration and control-board integration.
Provide the cleaner application, power supply, target performance, mechanical space, required controller functions, expected quantity and destination market. Include any specifications that must be matched to an existing motor or drive board.
Zhong Hua Jiang welcomes inquiries from vacuum cleaner manufacturers, cleaning-equipment brands, product engineers, distributors and professional procurement teams. Contact us to discuss the HJ-BLD45 12V high-suction motor, its drive control board and your application requirements.
