How to effectively prevent corrosion of gantry cranes outdoor？

To effectively prevent corrosion of gantry cranes in outdoor environments, the following measures can be taken: Surface treatment: Cleaning: Before any anti-corrosion measures, thoroughly clean the surface of the gantry crane to remove rust, dirt, and grease. Sandblasting or mechanical grinding is usually used to remove rust and old coatings. Grinding: For metal surfaces, grinding can improve the adhesion of the coating. Coating protection: Primer: After cleaning the metal surface, apply a layer of...

The hazards associated with cranes include what？

Crushing and Collisions This refers to the occurrence of crushing and collisions involving personnel during the operation of cranes and gantry cranes. Such incidents are common and extremely hazardous in crane operations, often resulting in severe consequences, including fatalities. The main scenarios include: (1) Swinging Load Crushing and Collision: This occurs when a swinging load crushes or collides with personnel during crane operation. The primary causes are improper operation by the driver, leading to sudden speed changes ...

What are the overload limiters for single girder cranes?

The overload limiters for single girder cranes mainly include the following types: Mechanical Overload Limiters: Lever-type Overload Limiter: Uses a lever mechanism to sense the load weight. When overloaded, it triggers an alarm or cuts off the power. Spring-type Overload Limiter: Senses load changes through spring deformation. When the preset overload value is reached, it triggers an alarm or protective device. Electronic Overload Limiters: Strain Gauge Overload Limiter: Measures load weight using strain gauge senso...

What are the differences between cabin operation and ground operation?

Cabin Operation Position: Operator works inside the crane's cabin at a high position. Visibility: Offers a comprehensive view of the work area. Control: Uses a control panel inside the cabin for precise movements. Comfort: Equipped with amenities like seats and air conditioning for long-term use. Safety: Provides higher safety by isolating the operator from ground-level hazards. Ground Operation Position: Operator controls the crane from the ground using a remote or control box...

what are the differences between HC/HM type electric hoists and CD/MD type hoists？

· Structure and Usage: HC/HM Type: These hoists are usually large-tonnage electric hoists designed for heavy lifting tasks. They have higher load capacities and more robust structures. They are commonly used in factories, warehouses, construction sites, and other places that require high-load work. CD/MD Type: These hoists are small-tonnage electric hoists suitable for lighter lifting tasks. The CD type is a single-speed electric hoist, while the MD type is a dual-speed electric hoist, suitable for scenarios requiring p...

What is a Double Hoist Single Girder Crane?

A double hoist single girder crane is a lifting device with two independently operating electric hoists mounted on a single girder. It is suitable for scenarios requiring simultaneous or independent operation of two lifting points.