When selecting and operating a running electric hoist, comprehensive consideration should be given to core dimensions such as load capacity, operating environment, track adaptability, control mode, safety performance, maintenance, and brand service to ensure safe, efficient, and stable operation of the equipment. The following is a specific analysis:

1、 Load capacity matching

Weight selection:

Determine the required lifting weight based on the actual weight of the lifted materials (including additional weight such as packaging and lifting equipment) multiplied by a safety factor (usually taken as 1.2-1.5). For example, when lifting 3 tons of material, it is recommended to choose a 4-5 ton electric hoist.

Avoid overloading, otherwise it may cause safety hazards such as motor overheating and chain/wire rope breakage.

Lifting height and speed:

Select the appropriate lifting height based on the height of the workspace to ensure that the hook can reach the desired position.

Choose the lifting speed (single speed, dual speed, or variable frequency speed regulation) according to the efficiency requirements of the homework. For high-frequency homework scenarios, it is recommended to choose dual speed or variable frequency models to improve efficiency.

2、 Adaptability to operating environment

Temperature and humidity:

High temperature environments (such as metallurgical workshops) require the selection of high-temperature resistant motors (with a protection level of IP55 or above) and heat-resistant chains/steel wire ropes.

In humid environments (such as food processing plants), waterproof and dustproof models (IP65 or above) should be selected to prevent electrical components from short circuiting.

Corrosive gases:

Electric hoists made of stainless steel or treated with special anti-corrosion coatings should be used in corrosive environments such as chemical and coastal areas to extend equipment life.

Explosion proof requirements:

Flammable and explosive places (such as petrochemicals and coal mines) must choose explosion-proof electric hoists that comply with explosion-proof standards such as Ex d IIB T4, and be equipped with explosion-proof motors and controllers.

3、 Track design and adaptability

Track type and specifications:

Choose I-beam tracks (such as 16 # -45 #) or lightweight tracks based on the weight of the load, and use thicker track models for heavy load scenarios.

The track needs to be installed horizontally to avoid tilting and increasing operational resistance or jamming.

Span and curvature:

The span of the straight track should be designed according to the spacing between the supporting beams to avoid track deformation; The curved track should be designed according to the curvature radius of the electric hoist wheel tread (such as 129mm for less than 1 ton and 167mm for 5-10 tons).

The stability of large-span tracks (>6m) needs to be carefully checked to prevent the track from sagging or overturning due to load.

Wheel pressure and bearing capacity:

Calculate the standard value of concentrated load on wheels (including maximum lifting weight and self weight of electric hoist) to ensure that the track bearing capacity meets the requirements.

The track connection should have a smooth transition to avoid shaking or noise during operation due to uneven joints.

4、 Control mode and efficiency

Operation method:

Button control: suitable for fixed workstation operation, with low cost.

Wireless remote control: suitable for multi station or remote operation, improving operational convenience.

Linkage control: It can be linked with the operation of the crane's large and small vehicles to achieve three-dimensional space lifting.

running speed

Choose single speed, dual speed, or variable frequency speed regulation models according to the homework rhythm. The variable frequency electric hoist can achieve stepless speed change to meet precise positioning requirements.

The high-speed model (such as a lifting speed of 8m/min) is suitable for high-frequency lifting scenarios, while the low-speed model (such as a lifting speed of 2m/min) is suitable for precise positioning scenarios.

5、 Security performance guarantee

Extreme protection:

Equipped with upper and lower limit switches to prevent the chain/wire rope from over winding or falling out of the groove, avoiding equipment damage or falling objects.

Braking system

Adopting a dual brake system (such as a conical rotor brake motor+electromagnetic brake) to ensure stable suspension of the hook during power outage and prevent slipping.

Overload protection:

Install an overload limiter that automatically shuts off power when the load exceeds the rated value to prevent motor burnout or structural damage.

Protective device:

Protective cover: protects the chain/wire rope from external damage.

Anti unhooking device: prevents accidental unhooking of the hook and enhances operational safety.

6、 Convenience of maintenance and upkeep

Structural maintainability:

Choose an electric hoist with modular design for quick disassembly and replacement of vulnerable parts such as chains, gears, brakes, etc.

The design of the chain box should facilitate the observation of the chain status, and the steel wire rope electric hoist should reserve lubrication holes for regular maintenance.

Lubrication and maintenance cycle:

The gearbox needs to have its lubricating oil replaced regularly (usually every 6-12 months), and the chain/wire rope needs to be lubricated regularly (every 3-6 months).

The brake clearance needs to be adjusted regularly to ensure stable braking performance.

7、 Brand and after-sales service

Brand selection:

Imported brands such as DEMAG and KONECRANES have stable performance but high prices, making them suitable for scenarios with extremely high reliability requirements.

Domestic brands such as Hugong and Franktek have high cost-effectiveness and a complete after-sales service network, making them suitable for scenarios with limited budgets or high requirements for service response speed.

After-sales service

Prioritize choosing brands that provide nationwide warranty and rapid response services to ensure timely maintenance in case of equipment failure.

Understand whether the brand provides value-added services such as regular inspections and operational training to reduce future usage costs.

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