Guinca de velocidade elétrica de velocidade variável

Variable speed electric hoist core variable frequency drive module utilizes Infineon IGBT power devices with adaptive PID algorithms, enabling infinitely variable speed control from 0.1-20 m/min with speed fluctuation within ±1%. When approaching target positions, the system automatically switches to 0.1 m/min micro-speed mode, integrating gyroscopic anti-sway algorithms to achieve ±5mm positioning accuracy for delicate equipment assembly, eliminating installation accidents caused by load swinging.

Weihua variable speed drive technology

• 1. Precise speed control: 0.1-20 m/min stepless speed regulation, supporting millimeter-level positioning accuracy (±5mm).
• 2. Soft start-stop protection: eliminates mechanical impact and extends the life of the wire rope/chain by 300%+.
• 3. Adaptive load response: Real-time matching of motor torque, speed increase by 30% under light load, and rock-solid stability under heavy load.

Variable speed electric hoist parameters

Parameter	Standard value range	Customizable options
Carga nominal	0.5-100 tons	Up to 200 tons
Lifting speed	Frequency conversion 0.1-20 m/meu	Two-speed/multi-speed switching
Job level	FEM 3m / ISO M6	Up to M8
Motor power	1.5-30 kW	IP55/IP65 protection
Speed ​​regulation accuracy	±1% of setting value	Optional ±0.5% high precision version
Control method	Remote control + PLC + Internet of Things IO	Support PROFINET communication
Overheating protection	Real-time temperature monitoring + automatic load reduction	–
Nível de ruído	≤65dB(UM)@1m	Silent mode ≤58 dB

Key Performance Parameters

Load-Speed Profile

Load Ratio	100% Rated	60% Rated	30% Rated
Speed Range	0.1-8 m/meu	0.1-12 m/meu	0.1-20 m/meu

Energy Efficiency Data (10-ton model)

Condition	Traditional Hoist	Weihua VFD Hoist	Savings
Single Lift (10m)	1.8 kW·h	1.2 kW·h	33%
Standby (24h)	0.5 kW·h	0.15 kW·h	70%

Customized solutions for the variable speed electric hoist industry

• 1. Explosion-proof type: ATEX/IECEx certification (Ex db IIC T4).
• 2. Low temperature type: normal operation in extremely cold environment of -40℃.
• 3. Clean room version: silicone-free design + stainless steel shell (ISO Class 5).

Extreme Condition Adaptability

Addressing demanding industrial environments, Weihua’s proprietary 4D Dynamic Load Response System delivers:

• Light-Load Efficiency Mode: Automatically increases motor speed to 130% of rated value when sensors detect <30% load ratio, reducing empty hook transit time.

• Heavy-Load Stability Mode: Activates torque compensation at >80% load, smoothly boosting motor output to 115% to prevent traditional hoists’ “step-type” overload tripping.

• Hazardous Sway Control: Configurable S-curve acceleration/deceleration (0.1-0.3 m/s²) via HMI suppresses liquid sloshing forces during chemical transfer, reducing spill risks by 90%.

• Multi-Hoist Synchronization: Industrial CAN bus architecture synchronizes up to 32 hoists with <1% speed deviation for millimeter-level alignment of large components.

Optimizing the life cycle cost of variable speed electric hoist

► Hardware Durability Innovations

• Dual Braking Redundancy: Primary normally-closed electromagnetic disc brake (response ≤20ms) + secondary mechanical centrifugal emergency brake + laser tachometer, complying with EN 13157 safety standards.

• G80 Alloy Hooks: Forged under 12,000-ton hydraulic press with self-locking safety latches, 300% safety factor.

• Permanent-Sealed Drive System: Labyrinth-sealed gearbox with synthetic hydrocarbon grease enables 50,000-hour maintenance-free operation.

► Smart Predictive Maintenance

Embedded Weihua SmartLift® IoT module utilizes vibration sensors + current ripple analysis for:

• Bearing wear alerts (500-hour advance warning)

• Brake pad thickness monitoring (0.1mm precision)

• Wire rope micro-deformation detection (AI image comparison)
  Real-time equipment health indices via mobile APP reduce annual maintenance costs by 40%.

Variable speed electric hoist intelligent scene application

Scene	Pain points of traditional gourds	Weihua frequency conversion solution
Precision assembly line	Positioning shakes, lack of accuracy	Low speed mode (0.1 m/meu) + anti-sway algorithm
High-hazardous chemical handling	Start and stop liquid splashing	S-curve acceleration and deceleration, the acceleration can be adjusted to 0.1m/s²
Multi-machine collaborative operation	Speed ​​out of sync	CAN bus synchronous control, group error <1%
Energy sensitive factory	High energy consumption in standby	Sleep mode power consumption ≤15W (70% energy saving)

Global Success Cases

Case 1: EV Battery Production Line

A German automaker deployed 32× WH-VSE-5T variable speed electric hoists in automated module handling:

✓ ±3mm positioning accuracy

✓ 22% faster cycle time

✓ Zero failures in 2 years

Case 2: Nuclear Fuel Processing

Explosion-proof electric hoist (Ex db IIC T4) in radiation zones:

✓ S-curve acceleration eliminating hazardous sway

✓ 200m remote control range

✓ Achieved 10-year maintenance-free design