Electric Chain Hoist Maintenance & Anti-corrosion

How to keep your electric chain hoist from corrosion? How to ensure its safety & working life in corrosion chemical & wet places? Check now.

Electric chain hoist is a kind of metal products. Due to the metal is easy to react with the surrounding medium, causing metal corrosion. Once corroded, the performance of electric chain hoists will be greatly reduced. Similarly, if the electric chain hoist is corroded, it is likely to make the equipment unable to work, causing economic and other losses. The anti-corrosion features can be designed and added to electric chain hoists are required.

Anti-corrosion electric chain hoist

The life of an electric chain hoist, which is related to its stability and safety, is determined by how well each component resists corrosion. Sacrificial anode protection is a revolutionary anti-corrosion technique for electric chain hoists.

Anti-corrosion methods of electric chain hoists

• Regularly paint the electric chain hoist with anticorrosive paint to isolate the source of the corrosion.
• Control the workplace setting to lower the concentration and humidity of airborne noxious gases.
• Sacrificial anode protection is used to carry out cathodic protection of hoisting equipment, and electrochemical anti-corrosion technology is employed to safeguard the electric chain hoist.
• Corrosive media handling .In order to prevent corrosion, dealing with corrosive media entails altering its properties and reducing or removing any harmful components. This method can only be used with a limited amount of corrosive media and, of course, cannot handle an atmosphere full of space.

The maintenance measures of electric chain hoist are as follows:

• Regularly visually inspect the travelling beam and hook parts, and manually control and inspect the brake device and balance pulley;
• Regularly add butter to the gears to keep them lubricated;
• Check whether the ring chain is aging or damaged, whether the switch is sensitive, and whether the switch insulation sleeve is loose;
• The oil in the gear box of the electric chain hoist has reached 500 hours from the beginning of operation, please check whether the amount of lubricating oil is sufficient, and then check the lubricating oil regularly in the third month, if it is insufficient, you need to add oil;
• When using electric chain hoists outdoors, rainproof equipment should be added or equipped;
• Always keep the electric chain hoist parts dry. When the operation is finished, please move the electric hoist away from the humid area, high temperature area or chemical area to maintain its performance.

Electric chain hoist hook anti-corrosion

The hook is a key load-bearing component in an electric chain hoist. Its efficiency is proportional to the progress of the cargo lifting operation. The performance of the hoist hook will be affected by wear, deformation, opening, and rust. However, because the hoist hook is made of metal, its performance will be affected. Rust is a relatively common problem, and the awareness of preventing rusting hooks must be maintained in daily maintenance work.

Let us now examine the rust prevention and removal work of electric chain hoist lifting hooks.

Hook rust prevention

It is always easier to prevent hook corrosion than to remove it. This calls for us to adopt waterproof and rainproof safeguards in everyday use, as well as clean and wipe after daily work, in order to prevent hook rusting. A more efficient technique to stop the hook from rusting at work is to maintain the surface clean and dry.

Derusting of the hook

If the hook of the currently in use electric chain hoist has rusted, we should clean it based on how bad the rust is. The traditional approach to rust removal is a little easier. The hook merely has to be cleaned before use. After removing the rust spots from the surface with wooden brushes and other instruments, evenly coat it with anti-rust and lubricating oil. It should be emphasized that once the rust has been removed, the hook should be used with care to prevent further rusting.

Galvanized hoist chains

The appearance of the galvanized hoist loading chain is blue which is the result of the chain's zinc plating being passivated and then bleached. Zinc coatings of loading chains is hardly changed in dry air. In humid air, in water containing carbon dioxide and oxygen, its surface will form a film mainly composed of basic zinc carbonate. This film has a corrosion inhibitory effect. It can prevent the metal from being corroded continuously.

Stainless steel chains

Stainless steel chains are most suitable for working in places with corrosion resistance, chemical elements, and large temperature differences, such as: cleaning of food machinery, return of glass machinery, etc. As a common transmission device, a hyperbolic arc design is used to reduce friction. It is most suitable for places with high power and slow running speed.

Galvanized chains and stainless steel chains have super anti-rust and corrosion resistance. The process used in galvanized chains is galvanized on the surface to produce a layer of insulating film, which is used to isolate the acid and alkali in the air, moisture Corrosion of the air. From this point of view, it is quite different from the stainless steel chain.

The stainless steel chain uses nickel, chromium and other metal elements inside the metal to achieve the effect of anti-rust and anti-corrosion. Even if used in harsh environments for a long time, the stainless steel loading chain can keep up bright and bright at all times. This is the characteristic of stainless steel chains.

Get your customized anti-corrosion electric chain hoists

Based on your lifting requirements and application conditions, the electric chain hoists can be customized to fit in the particular environment. No matter the electric hoist will be used around the waters or at seaside or even for underwater loads handling, the customized electric chain hoist with specialized chain falls and hooks will be your needs. Contact us to get your customized anti-corrosion electric chain hoist and anticorrosion cranes today!

Article by Bella ，who has been in the hoist and crane field since 2016. Bella provides overhead crane & gantry crane consultation services for clients who need a customized overhead travelling crane solution.Contact her to get free consultation.