Product Name: Stage Chain Hoist

Product Type: Stage Chain Hoist

Product Description: Tianjin Kemei Machinery Manufacturing Co., Ltd. is a modern production - oriented enterprise integrating independent R & D, manufacturing, and sales. It is located in the beautiful coastal city of Tianjin, enjoying a unique geographical location, convenient transportation, and smooth logistics. The company is committed to the development and manufacturing of stage entertainment lifting products. Its main products include stage - specific endless chain electric hoists, stage - specific hand chain hoists, black lifting slings, group control boxes, rail grippers, and auxiliary products. These products are widely used in the fields of truss construction for concerts, conference halls, exhibition hall fine decoration, high - end customized weddings, and various celebration performances.

Product Specifications: 1. It adopts international G80 - grade lifting chains, featuring good safety performance and corrosion resistance. 2. It has two lifting methods: normal hanging and inverted hanging. 3. The whole machine shell is made of aviation aluminum, making the body more lightweight. To select a suitable stage hand chain hoist, multiple factors need to be comprehensively considered, such as lifting capacity, lifting height, operating environment, operational convenience, brand, and quality. The following are the specific selection points: Lifting Capacity Calculate the Load: Determine the lifting capacity of the hand chain hoist according to the weight of the heaviest object or equipment to be lifted on the stage. Consider the weight of the object itself and possible additional loads (such as the weight of lifting slings, wind load, etc.). Generally, a certain safety margin should be reserved. Usually, a safety factor between 1.25 and 1.5 is recommended. For example, if the heaviest stage equipment weighs 500 kilograms, considering a safety factor of 1.25, a hand chain hoist with a lifting capacity of at least 625 kilograms should be selected. Multi - unit Collaboration: If it is necessary to lift extra - large or overweight objects, you can consider choosing multiple hand chain hoists with smaller lifting capacities to work together. However, ensure that the sum of their lifting capacities can meet the load requirements and that they can evenly share the load to avoid local overloading. Lifting Height Scene Requirements: Determine the lifting height according to the actual height of the stage and the specific position where the object needs to be lifted. For example, if the installation height of the lighting truss above the stage is 8 meters, a hand chain hoist with a lifting height of at least 8 meters should be selected to ensure that the lighting equipment can be lifted to the designated position. Reserve Space: When determining the lifting height, also consider the ground space and the size of the hoist itself. Ensure that the object will not collide with surrounding obstacles during the lifting process. At the same time, also consider whether there is enough space for operation when the hoist is in the lowest position. Operating Environment Protection Level: If the stage environment is relatively humid or dusty, a hand chain hoist with a corresponding protection level should be selected. For example, in outdoor open - air stages or stage scenes close to water sources, a hand chain hoist with waterproof and rust - proof functions is required, and its protection level generally needs to reach IP44 or higher. Explosion - proof Requirements: In some special scenarios, such as when there are flammable and explosive items on the stage or when events are held in places with explosion - proof requirements, an explosion - proof hand chain hoist must be selected to prevent safety accidents caused by sparks generated by friction, collision, etc. Operational Convenience Chain Material and Quality: The material and quality of the chain directly affect the operating feel and service life of the hand chain hoist. High - quality chains should have good flexibility and wear resistance. When operating, they should be pulled smoothly without chain jamming or skipping. For example, chains made of high - strength alloy steel not only have high strength but also a smooth surface, making the operation easier. Handle Design: The handle design should conform to the principles of ergonomics, facilitating the operator to hold and exert force. The handles of some hand chain hoists are designed with anti - slip and shock - absorbing features, which can effectively reduce the operator's fatigue and improve the comfort and safety of operation. Braking Performance: Good braking performance is the key to ensuring operational safety. The hand chain hoist should be equipped with a reliable braking device that can brake immediately when the pulling stops to prevent the object from sliding down. When selecting, a simple braking test can be carried out to check whether the braking is sensitive and reliable. Brand and Quality Brand Reputation: Choose well - known brands and hand chain hoists with a good reputation. These brands usually have more stringent production processes and quality control systems, and the quality and safety of their products are more guaranteed. You can understand the brand's reputation by referring to product information, consulting other users, or referring to industry evaluations.

Quality Certification: Ensure that the selected hand chain hoist complies with relevant national standards and industry specifications, such as GB/T 10603 - 2003 "Hand Chain Hoists", etc., and has corresponding quality certification marks, such as CE certification, ISO certification, etc.