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🏗️ PNDhoist Smart Electric Hoist

Main Unit PNDhoist is a lightweight, intelligent electric lifting device designed for robotics R&D labs, precision assembly workshops, small production lines, and testing scenarios. It utilizes wireless remote control and an intelligent control system to achieve efficient, safe, and precise lifting and positioning operations, significantly enhancing R&D and operational efficiency.

‼️ IMPORTANT SAFETY INSTRUCTIONS

DANGER

  • NEVER lift or transport people or animals.
  • Keep clear of the rope and the area beneath the load. Never stand, walk under, or place any items.
  • NEVER touch the charging port to prevent electric shock.
  • In case of an emergency, press A button on the controller to execute an emergency stop.

WARNING

  • Do not exceed the rated capacity.
  • Do not operate if the rope is worn, frayed or damaged, or if the safety latch is loose. Replace any damaged components before use.
  • Do not operate if load is not centered under hoist. Do not hoist at any angles.
  • Keep the remote controller hook at least 10 cm away from the bottom of the host unit to prevent entanglement and damage.
  • Do not touch the rollers to avoid hand pinching.

NOTE

  • Ensure the suspension point (rail) has sufficient load-bearing capacity.
  • This hoist is for indoor use only. Strictly prohibited for outdoor use, damp environments, or in rain/snow. Using outdoors or in damp environments may cause electrical damage, electric shock, or personal injury.

💡 Key Features

⚙️ Precision Control

  • Stepless Speed Control – Supports smooth transition from micro-speed to high-speed lifting.
  • Position Control Mode – Set target height for automatic precise stopping.
  • Speed Control Mode – Maintains constant lifting speed for stable motion.
  • Tension Control Mode – Monitors load tension for constant-force lifting or gravity compensation.
  • Jog Mode – Allows micro-adjustments via short-press operation, ideal for fine positioning.

⚡ Ultra-High Torque Density Drive System

  • Outer Rotor Permanent Magnet Synchronous Motor (PMSM) –
    Uses high-energy rare-earth magnets and outer-rotor topology for greater torque radius and higher magnetic efficiency, achieving outstanding output in compact form.
  • High Torque Density – Offers 60–80% higher torque density than traditional inner-rotor motors, delivering smaller, lighter, and more powerful performance.
  • Integrated Drive Module – Deep integration of motor and high-frequency driver reduces wiring complexity and EMI, enhancing response and reliability.
  • High-Speed Response – Equipped with a high-bandwidth current loop and adaptive FOC control algorithm, enabling millisecond-level torque response.
  • Excellent Heat Dissipation – The outer-rotor design provides larger cooling surface area for long-duration stability.

📡 Wireless and IoT Intelligence

  • Wireless Range: Up to 20 meters, supporting multi-device operation.
  • IoT Connectivity: Supports Bluetooth BLE 5.0 / Wi-Fi, compatible with PLCs, PCs, or cloud systems for remote monitoring and data logging.
  • Cluster Control: Multiple PNDhoist units can perform synchronized or formation lifting via wireless networking.
  • OTA Updates: Wireless firmware upgrades ensure continuous performance improvement.

🔋 Performance and Endurance

  • Long Battery Life – One full charge supports thousands of standard lift cycles (depending on load).
  • High Efficiency – Low-power motor and optimized transmission design reduce energy consumption.
  • Low Noise – Operates at just 65 dB(A), 30% quieter than typical models, suitable for labs and quiet environments.

🧠 Safety and Protection

  • Thermal Overload Protection – Real-time monitoring prevents overheating.
  • Overload Detection – Automatically stops operation upon detecting excessive load.
  • Emergency Stop – One-touch safety stop.
  • Anti-Fall & Limit Protection – Dual braking and position limit detection ensure secure lifting.

🪶 Structural Design

  • Ultra-Lightweight – High-strength aluminum alloy and composites reduce weight by 30%.
  • Compact Form Factor – Easy to mount on test rigs, gantry frames, or mobile platforms.
  • Modular Design – Simplifies maintenance, replacement, and module expansion (e.g., camera or sensors).

🧩 Advanced Features

  • Gravity Compensation Mode – Enables balanced hovering for precision assembly or cobot collaboration.
  • Self-Learning Parameter Tuning – Intelligent optimization of acceleration and deceleration profiles.

📊 Technical Specifications

Parameter Specification Parameter Specification
Model PNDhoist v1.0 Rated Load 80 kg
Main Unit Weight 9.5 kg Dimensions (L×W×H) 365 × 155 × 300 mm
Rope Length 5 m Communication Bluetooth BLE 5.0 / Wi-Fi
Charging Time ≈ 2 hours Battery Capacity 374 Wh (8100mAh × 46.2V)
Operating Temp. 0°C–40°C Remote Distance 20 m (open area)
Lifting Speed 7.6 m/min Noise Level 65 dB(A) (no-load)

🎥 Tutorial Video

🛠️ Components & Control

Controller

Main Unit Description Controller Description
Main Body Contains motor, control unit, and battery Power Button Press and hold for 3 seconds to power On/Off
Hook For suspending load, equipped with safety latch Pairing Button Short press once in the controller pairing interface to complete pairing
Wire Rope Standard length 5 meters @ Button + Joystick Hold @ Button and push Joystick to control lifting/lowering (Joystick deflection = speed)
Charging Port Located at the bottom of the unit C Button Press to lift load, release to stop
Indicator Light Multicolor: Standby
Green: Motor initializing
Blue: Controller connected successfully
Red: Low battery/Fault		 D Button Press to lower load, release to stop
A Button Emergency Stop
B Button Restart
Indicator Light Blue blinking: Connecting
Blue steady: Connected successfully

📋 Operating Instructions

🔌 Charging

  • Insert the charger and rotate to lock.

  • Push the button to unlock and rotate to remove. Charger

  • Charger Indicator steady green: Indicates full charge.

  • Main Unit Indicator multicolor blinking: Indicates successful startup, entering standby mode.

🎮 Controller Connection

The controller is pre-paired during initial setup. It connects automatically upon power-on and is ready for use. If replacing the controller, re-pairing is required.

  1. Press and hold the controller Power Button for 3 seconds to power on the controller.
  2. Controller Indicator blue blinking: Indicates successful power-on, waiting for connection.
  3. Controller Indicator blue steady, Main Unit Indicator green blinking: Indicates successful controller connection, motor initializing.
  4. Main Unit Indicator blue blinking: Indicates successful motor initialization, controller operation is now available.

🎮 Controller Pairing

  1. Connect a PC or mobile device to the Wi-Fi (PNDhoist_XXX, obtain from label on main unit) and access the management page.

Controller
2. Click "New Joystick", and simultaneously press the controller Pairing Button.

🔍 Pre-Installation Check

  • Ensure the rail is correctly installed and secure.
  • Install the hook, check if the safety latch closes properly (rotate and press down to unlock, release to auto-lock). Hook
  • Check if the wire rope is neatly wound on the drum.

🔩 Installation Procedure

  1. Remove the rail end stop.
  2. Slide the device into the rail with the pulley facing upwards (recommended to adjust device orientation for easy observation of wire rope status). Trolley
  3. Reinstall the rail end stop and confirm it is secure. End Stop

🔄 Lifting Operation

During the first lift, use the jog function to raise the load 10-20 cm off the ground. Check brake reliability and suspension stability. Confirm everything is correct before continuing.

  • Power On & Connect: Press and hold the controller power button, the device automatically connects to the paired controller.
  • Load Suspension:
    1. Rotate and press down to unlock the safety latch.
    2. Suspend the load.
    3. Release the safety latch to auto-lock.

NOTE

  • Ensure the safety latch is locked.
  • Ensure the hook is directly above the load to avoid creating side pull.

Load

Lifting / Lowering:

  • Lift: Press C Button or Hold @ Button + Push Joystick Up
  • Lower: Press D Button or Hold @ Button + Push Joystick Down
  • Operation Tip: Use the jog function for more precise positioning.

Power Off:

  • After operation, press and hold the controller Power Button for 3 seconds to power off the device.
  • The device supports an auto-sleep function to save power.

🔋 Battery Management

Battery Parameters

  • Battery Capacity: 374 Wh
  • Charging Time: ~ 2 hours
  • Low Battery Warning: When the Main Unit Indicator blinks red, charge promptly.

🧼 Maintenance & Care

  • Daily Check: Before each use, inspect the wire rope for fuzzing, damage, and the hook for cracks.
  • Cleaning: Wipe the device with a dry, soft cloth. Avoid corrosive chemical solvents.
  • Regular Inspection: Perform a comprehensive monthly check, including fastener tightness.
  • Repair: If any abnormal noise, jerky movement, or functional failure is detected, stop use immediately and contact after-sales service.

❓ FAQ & Troubleshooting

Symptom Possible Cause Solution
Won't Power On Battery depleted Connect to charger for charging
Controller No Response Bluetooth not connected Confirm controller is powered on, wait for automatic connection
Unit Stops Working Suddenly Overload protection triggered 1. Check if load is overweight
2. Remove load, power off and restart
Charging Indicator Not Lit Charger not connected properly or faulty Check charger cable connection, or try a different charger
Insufficient Lifting Force Low battery level Charge promptly

Last Updated: 2025-10-30