March 29, 2024

After the inverter is used to start the refrigeration unit smoothly and steplessly, the inverter can be automatically or manually removed.

Due to the early purchase, the refrigeration unit has been outdated, and all the relays and contactors have been used for many years. The performance is aging, and often malfunctions, causing downtime, which causes the abnormal temperature and humidity of the production plant to exceed the standard. The mechanical part of the chiller has a large impact, which often causes damage to the chiller impeller, bearings, seals, pump shafts and bearings. The refrigeration unit adopts dozens of relays to control. When the outdoor temperature and humidity fluctuate greatly during the transitional season, in order to ensure the temperature and humidity of the production plant is stable, the chiller starts and stops frequently, sometimes even during the day and at night, causing the relay to move frequently. Relays are often damaged, increasing the cost of equipment maintenance.

In order to ensure that the chilled water temperature meets the requirements of the workshop temperature and humidity control, it is necessary to control the amount of steam entering the refrigeration compressor. The vane at the inlet of the compressor impeller is often manually adjusted to regulate the cooling capacity, which will cause the entire grid to be supplied. Unstable, and even caused excessive power grid voltage fluctuations and power outages. The technical transformation plan is proposed. After the inverter is used to start the refrigeration unit smoothly and steplessly, the inverter can be automatically or manually removed, and then connected to two 45kw cooling water pumps. After the inverter is started smoothly, the automatic speed regulation and stable water pressure are adopted. In order to achieve energy saving purposes.

Stage Chain Hoist


Manual Stage Chain Hoist is specially designed & manufactured for stage inversion or common lifting operation purpose. for example, in stage stereo, lighting, show banner,

campaign activity and steel frame which application is very wide.

Electric Stage Chain Hoist :


1. Clutch: Protects hoist, operator, structure from damaging overloads.

2. With Overload Protection: Designed to prevent lifting of excessive overloads. Helps prevent lifting of dangerous loads.

3. Zinc plated Load Chain to protect against corrosion. Optional black finish available.

4. Low voltage control: 24 and 48 volt optional.

5. Cast aluminum housing, lightweight. Black power coated finish for low visibility.

6. 5-teeth Lifting Chain wheel

7. Double brake: With mechanical brake

Products ahow

stage lift chain hoist

Hand Pulling Hoist stage


Our Services

1.Client

We treasure and try to understand all the different needs of our clients and seek to forge a long term professional relationship with them. The satisfaction of each and every customer is our main goal and motivation in conducting our business.

2. People

We work as a team and treat each other with respect. Our solid, capable and knowledgeable team is valued as the greatest asset and an integral part of the business.

3. Product

Our products are of HIGH quality standards and always come with certificate of compliance by the manufacturers.

4. Performance

We aim to achieve high level of performance and satisfaction to both our client and people, which include delivering high quality services and treating people with integrity.

5. Free sample and OEM service

We can provide free samples to you and we also have OEM service, we can put your logo on the label and the information you need on the webbing too.

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Stage Chain Hoist,Climbing Chain Hoist,Manual Stage Chain Hoist,Electric Stage Chain Hoist

Hebei Liston Lifting Rigging Manufacturing Co., Ltd. , https://www.liftingriggingfactory.com