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Construction Hoist Description:
Common small portable hoists are of two main types, the chain hoist or chain block and the wire rope or cable type. Chain hoists may have a lever to actuate the hoist or have a loop of operating chain that one pulls through the block (known traditionally as a chain fall) which then activates the block to take up the main lifting chain.
For a given rated load wire rope is lighter in weight per unit length but overall length is limited by the drum diameter that the cable must be wound onto. The lift chain of a chain hoist is far larger than the liftwheel over which chain may function. Therefore, a high-performance chain hoist may be of significantly smaller physical size than a wire rope hoist rated at the same working load.
Both systems fail over time through fatigue fractures if operated repeatedly at loads more than a small percentage of their tensile breaking strength. Hoists are often designed with internal clutches to limit operating loads below this threshold. Within such limits wire rope rusts from the inside outward while chain links are markedly reduced in cross section through wear on the inner surfaces. Regular lubrication of both tensile systems is recommended to reduce frequency of replacement. High speed lifting, greater than about 60 feet per minute (18.3m/min), requires wire rope wound on a drum, because chain over a pocket wheel generates fatigue-inducing resonance for long lifts.
Themultifunctionalhoist is vertical transport machinery for building materials and personnel, driving with pinion and rack, applies to engineering of high rise. SC hoist is equipped with reliable electrical and mechanical safety device. It is an efficient and safety vertical transporting equipment.
The hoist can be installed and disassembled very easily and can also be heightened with the constant increase of building, According to customers’ requirements, the cage can be single or double. The single cage building hoist can become a double cage building hoist by adding one cage and other components. The payload can be doubled if equipped with counterweight to meet different customers’ requirements.
Construction Hoist Specification:
Construction Hoist Images:
FAQ of Building Hoist:
Q: What is the building hoist main purpose?
A: Building hoist equipped with double or single cabin to transport the materials and labors up and down. It's the ideal construction equipment for vertical transportation in the field of construction.
Q: What is the main structure of building hoist?
A: The P/M construction hoist mainly contains metal structure, driving system, electrical control system, cable guide & protection system, electrical top crane and safety device.
Q: What is the meaning of the building hoist’s code?
A: Take SC200/200 for example: “SC” stands for rack and pinion hoist, “200/200” stands for double cage and capacity is 2 tons per cage. “SC200” stands for single cage and capacity is 2 tons.
Q: What is the dimension of the cage?
A: Normally the cage dimension is 3X1.5X2.5M (L/W/H) for 2t type hoist. Details should be checked according to our quotation sheet. Also, the size can be customized according to the factual site condition. There are two doors (entrance & exit doors) for each cage, It can be produced as up & down sliding or ramping model for safety and convenience.
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