The utility model of the lever hoist is mainly reflected in five dimensions: material innovation, structural optimization, intelligent integration, safety enhancement, and environmental adaptation. Combined with industry trends and patented technologies in 2025, the specific innovation points are as follows:

1. Breakthroughs in Lightweight and High Strength Materials

Aluminum alloy and composite materials: For example, Yale uses lightweight aluminum alloy body, which reduces weight by more than 30% while maintaining high load capacity (such as 1-6 tons), improving portability and operational efficiency; DuPont and other companies are developing carbon fiber reinforced composite materials to further reduce self weight and enhance fatigue resistance.

Corrosion resistant coating: For harsh environments such as offshore and chemical, ISO 12944 C5M anti-corrosion coating or stainless steel components are used, such as the special coating of SS19 Subsea Lever Holist, which can resist immersion corrosion for more than 54 days and extend equipment life.

2. Structural design and mechanical optimization

Ratchet pawl system upgrade: adopting self-lubricating DU ® Metal polymer bearings (such as PTFE+lead coating) reduce friction coefficient by 40% and improve operational smoothness; Some models are equipped with a dual pawl design, which automatically locks into the ratchet teeth slot when overloaded to prevent chain breakage.

Chain and guide rail innovation: Wear resistant chains with a chain ring diameter wear of ≤ 10%, paired with low friction guides to reduce energy loss; SS19 introduces multi chain wheel load pulley bearings, combined with self-lubricating technology, to achieve smooth operation at extreme angles.

Hook safety design: such as the "EZ Check" patent mark, which quickly determines whether there is overload by measuring the distance between triangular marks; Self locking safety hooks prevent load shedding, and some models integrate LED status indicator lights to enhance operational visibility.

3. Intelligent technology and digital integration

IoT and Remote Monitoring: Integrated Bluetooth/Wi Fi module, real-time transmission of load data to the central system, achieving remote control and status monitoring (such as Tractel's intelligent monitoring system); Some models support API interfaces for data exchange with warehouse management or security platforms, and support predictive maintenance.

AI driven diagnosis: By collecting vibration, temperature and other data through sensors, combined with AI algorithms to predict component wear, early warning of faults, and reduce downtime.

Electronic overload protection: The mechanical overload limiter and electronic sensor provide dual protection, automatically locking and triggering an alarm when overloaded, in compliance with safety standards such as OSHA and CE.

4. Strengthen security mechanisms

Dual braking system: spring braking+hydraulic buffering design, ensuring stable suspension when the load is stationary; The response time of the braking system has been shortened to 0.5 seconds, improving safety in emergency situations.

Anti fall and anti slip design: anti slip rubber sleeve at the end of the handle, ergonomic grip design to reduce operational fatigue; The braking system adopts a dual braking design (such as spring braking+hydraulic buffering) to ensure stable suspension of the load in a stationary state or emergency situation.

Visual safety signs: The pawl direction switch adopts red/green/yellow three color signs, and the neutral mode is only used for no-load adjustment to avoid misoperation.

5. Environmental adaptation and special applications

Compact and multi-directional operation: 360 ° rotating handle and compact body design, suitable for theater (low visibility black chain) and narrow space operations; Some models support horizontal/vertical/angular multi-directional lifting, suitable for complex work scenarios.

Extreme environment adaptation: Offshore models use salt spray resistant materials, while mining models are equipped with dust-proof sealing structures to ensure stable operation in environments such as dust and high temperatures.

6. Maintenance and durability improvement

Modular and easy to maintain design: Annual professional maintenance includes disassembly and inspection of internal components (such as gearboxes and bearings), replacement of worn parts (such as chain links and brake pads); Self lubricating bearings reduce lubrication requirements and extend maintenance cycles.

Storage optimization: A dedicated suspension storage rack is used to prevent the chain from getting damp or deformed, maintain moderate looseness of the chain, and prevent excessive stretching.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment