Product Name: Stage Lifting Sling

Product Type:  Sling 

Product Description: 

Tianjin Kemei Machinery Manufacturing Co., Ltd. is a modern production - oriented enterprise integrating independent R & D,

 manufacturing, and sales. The company's main products include stage electric hoists, stage chain hoists, black lifting slings, group

 control boxes, rail clamps, and auxiliary products.

Product Specifications:

1.The material has low torsion, low wear, and a long lifespan. 

2.It has a 6 - times safety factor, and the tensile force is evenly distributed.

3. It is resistant to moisture and has good heat resistance, with a maximum temperature tolerance of 80 degrees Celsius.

The selection of the material for stage lifting slings is a crucial task that requires a comprehensive consideration of multiple factors. The following is a detailed elaboration for you. I. Selection Guide for Environmental Adaptability

Extreme Temperature Range Solutions - Humid and Hot Environment (RH≥85%): It is recommended to use polypropylene (PP) - made lifting slings. The characteristic of its water absorption rate ≤ 0.01% can effectively avoid the risk of hydrolysis. Typical application scenarios include water theaters and rain - curtain special - effect stages. It is advisable to be equipped with an anti - mildew coating treatment process.

- High - Temperature Working Conditions (＞80℃): Choose polyester (PET) fiber - reinforced lifting slings, whose heat - distortion temperature can reach 150℃. The key parameter to pay attention to is the material stress relaxation rate (recommended to be ＜5%/1000h@100℃). Recommended brands include the Crosby LIFTEX series.

- Low - Temperature Environment (-40℃~0℃): Galvanized aircraft steel wire rope components must be used, and they should be combined with special lubricating grease for low - temperature conditions. Focus on verifying the Charpy impact energy value of the material (which needs to be ≥27J@ - 40℃) and meet the requirements of the EN 13414 - 2 standard. Chemical Corrosion Protection System

- Conventional Special - Effect Environment (pH 3 - 11): An economical solution with polypropylene material. Its acid and alkali resistance level reaches Class 2B of the DIN 53522 standard and is suitable for scenarios such as dry - ice fog and conventional dyes. - Strong Corrosion Environment: Polyamide (PA66) base material should be used, and its chemical resistance has passed the ISO 105 - B02 certification. For scenarios with acidic smoke (such as H2SO4 concentration ≤ 10%), it is recommended to add a polytetrafluoroethylene (PTFE) surface coating. II. Functional Selection Matrix

Optimization of Dynamic Operation Performance

- High - Frequency Positioning Adjustment: Give priority to ultra - high - molecular - weight polyethylene (UHMWPE) lifting slings, whose bending fatigue life can reach 10^6 cycles. The supporting rotary joints should meet the 5° free - swing angle specified in ISO 4309. - Adaptation to Special - Shaped Loads: A polyester/PVC composite belt body solution with a Shore hardness of 55±5HA can achieve a minimum bending radius of R30mm. Typical applications include the lifting of sculpture installations and the installation of curved LED screens. Wear - Resistant System Engineering

- Moving Friction Scenarios: Aramid (Kevlar®) base material + ceramic - particle - embedded braiding process, with a wear rate ≤ 0.1mm³/(N·m). It is suitable for scenarios such as track follow - spot lamp systems and mobile stage machinery. - Edge Protection Scheme: Install a Dyneema® wear - resistant sheath in the truss contact area. Its Taber wear index is 300% higher than that of conventional materials, which significantly extends the service life cycle.

If you need further consultation on sling details, please contact Google email

Gmail : info@kemeihoist.com

             zyj@kemeihoist.com

Youtube：https://www.youtube.com/@tianjinkemei

WhatsApp：+86 13920508123