Product Name: W12 Stage Electric Hoist

Product Type: Stage Electric Hoist

Product Description: Tianjin Kemei Machinery Manufacturing Co., Ltd. is a modern production enterprise integrating independent R & D, manufacturing and sales. It is located in the beautiful coastal city - Tianjin, with a unique geographical location, convenient transportation and logistics. The company is committed to the development and manufacture of stage entertainment hoisting products. Its main products include stage - specific stage chain electric hoists, stage - specific hand - operated hoists, black lifting slings, group control boxes, rail clamps and auxiliary products, etc. These products are widely used in the truss construction fields of concerts, conference halls, exhibition booth construction, high - end customized weddings and various celebration performances. Product Specifications: 1. Dual - brake braking system ensures product safety and braking accuracy, minimizing the error during synchronous control. 2. The protection level reaches IP56 with a waterproof design, and it has passed the tests of rain and water immersion. 3. The product is equipped with upper and lower limit switches and adjustable limit blocks. 4. The whole machine shell is made of aviation aluminum, making the body lighter.

Key Dimensions for Judging the Quality of Stage Electric Hoists:

Core Materials and Processes Chain Clause: Check whether the chain is G80 alloy steel (international stage equipment standard), while inferior products often use low - strength carbon steel.

Shell Process: The shell should be made of die - cast aluminum/aviation aluminum (lightweight + corrosion - resistant), and inferior products may use plastic or thin iron sheet. Certification Compliance It must pass CE (European Union) or OSHA (Occupational Safety) **certification**, and verify the validity of the certificate number. Professional stage equipment should comply with EN 13155 (crane safety) and BS 7906 (entertainment equipment standard). Safety Redundancy Design

High - quality products are equipped with a dual - brake system (electromagnetic brake + mechanical emergency braking), which automatically locks when power is off.

Check whether there is a built - in overload protection sensor (automatically cuts off the power when the load exceeds 110%). Power System Performance The motor should have a protection level of IP54 or above (dust - proof and waterproof), and the no - load current fluctuation should be tested to be ≤5% (measured with a clamp - on ammeter).

The variable - frequency motor should support 0 - 100% stepless speed regulation (high - end models come with a servo feedback function). Control Precision The positioning accuracy of high - quality hoists should be ≤3mm (verified by a laser rangefinder), while inferior products often have an error of 5 - 10mm.

The group control system should achieve a **synchronous error of ±0.1 seconds** (a key indicator when multiple units are used for combined hoisting). Noise and Vibration The noise under the rated load should be <65 decibels (detected by a professional sound - level meter), and inferior motors often exceed 75 decibels.

The no - load vibration amplitude should be ≤0.15mm (the bearing quality is detected with a vibration analyzer). Accessory Compatibility

Verify the matching degree of the rail clamp with the L - Type/Box - Type truss (the tolerance should be <1mm). The breaking strength of the lifting sling should be ≥8 times the working load. Brand Technical Accumulation

Give priority to brands with a research and development history of stage - specific equipment of more than 10 years (not modified from general - purpose industrial hoists).

Check whether there is a three - dimensional dynamic load simulation test laboratory (not just a simple static test).

Actual Working Condition Test

Conduct a 125% load test for 30 minutes (the temperature rise of high - quality products should be ≤40℃).

Simulate the free - fall distance under the working condition of emergency power off (the standard requires ≤20mm).

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

Gmail : info@kemeihoist.com

              zyj@kemeihoist.com

Website: https://www.kemeihoist.com/

WhatsApp：+86 13920508123