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electric hoists,electric chain hoist

hoist

electric chain hoist: is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium. The load is attached to the hoist by means of a lifting hook.


ELECTRIC HOIST-WT-G200B,250B,300B


ELECTRIC HOIST-WT-G200B,250B,300B



Main technical parameters:
Rated Voltage: 230V, 50Hz
Rated Capacity: 200kg, 250kg, 300kg
Lifting Height: 25m
Lifting Speed: 20m/min
Power: 870W, 1110W, 1350W
Cable length : 26.2m
Cable diameter : 4.0mm, 4.5mm, 5.0mm
Ducty circle: S3 50% 4m/min
Outside dimensions (LWH): 515208350mm

Packing
Packing size: 6738.548cm
Qty./Ctn.: 1pc
G.W./N.W.: 50/48kg



ELECTRIC HOIST-WT-G200Y

ELECTRIC HOIST-WT-G200Y

Main technical parameters:
Rated Voltage: 230V, 50Hz
Rated Capacity: 200kg
Lifting Height: 30m
Lifting Speed: 17m/min
Power: 750W
Cable length : 31.5m
Cable diameter : 4.0mm
Ducty circle: S3 50% 4m/min
Levelled distance of supporting hook: Minimum : 900mm
Maximum : 1200mm With single phase motor, with plate arrester AC asynchronism, air-cooled, IP44

Packing
Packing size: 8341.540 cm
Qty./Ctn.: 1pc
G.W./N.W.: 52/50kg

ELECTRIC HOIST-WT-K250,500

ELECTRIC HOIST-WT-K250,500




Main technical parameters:
Rated Voltage: 220~230V,50Hz
Rated Capacity: 250kg single line; 500kg double line
Lifting Height: 25m single line; 12.5m double line
Lifting Speed: 14m/min single line; 7m/min double line
Power: 1150W
Cable length : 25.8m
Cable diameter : 5.0mm
Duty circle: S3 30% 4min
Resister Cable: =1250kg

Packing
Packing size: 604519cm
Qty./Ctn.: 2pcs
G.W./N.W.: 36/34kg






ELECTRIC HOIST-WT-K200,400

ELECTRIC HOIST-WT-K200,400


Main technical parameters:
Rated Voltage: 220~230V,50Hz
Rated Capacity: 200kg single line; 400kg double line
Lifting Height: 25m single line; 12.5m double line
Lifting Speed: 14m/min single line; 7m/min double line
Power: 1050W
Cable length : 25.8m
Cable diameter : 4.5mm
Duty circle: S3 30% 4min
Resister Cable: =1000kg

Packing
Packing size: 604519cm
Qty./Ctn.: 2pcs
G.W./N.W.: 36/34kg







ELECTRIC HOIST-G200,250,300

ELECTRIC HOIST-WT-G200,250,300


Main technical parameters:
Rated Voltage: 230V, 50Hz
Rated Capacity: 200kg, 250kg, 300kg
Lifting Height: 25m
Lifting Speed: 20m/min
Power: 870W, 1110W, 1350W
Cable length : 26.2m
Cable diameter : 4.0mm, 4.5mm, 5.0mm
Ducty circle: S3 50% 4m/min
Outside dimensions (LWH): 515208350mm

Packing
Packing size: 623044 cm
Qty./Ctn.: 1pc
G.W./N.W.: 42/40kg






ELECTRIC HOIST-WT-1000,2000

ELECTRIC HOIST-WT-1000,2000


Main technical parameters:
Rated Voltage: 110~120V,60Hz
Rated Capacity: 1000lb single line; 2000lb double line
Lifting Height: 36ft single line; 18ft double line
Lifting Speed: 33ft/min single line; 16.5ft/min double line
Power: 2-1/4hp
Cable length : 39ft
Cable diameter : 5.6mm
Duty circle: S3 20% 10min
Resister Cable: =4000lbs

Packing
Packing size: 582835cm
Qty./Ctn.: 1pc
G.W./N.W.: 38/36kg





ELECTRIC HOIST-WT-550,1100

ELECTRIC HOIST-WT-550,1100


Main technical parameters:
Rated Voltage: 110~120V,60Hz
Rated Capacity: 550lb single line; 1100lb double line
Lifting Height: 36ft single line; 18ft double line
Lifting Speed: 33ft/min single line; 16.5ft/min double line
Power: 1-3/4hp
Cable length : 39ft
Cable diameter : 5/32" anti-twist
Duty circle: S3 20% 10min
Resister Cable: =2200lbs

Packing
Packing size: 4626.228cm
Qty./Ctn.: 1pc
G.W./N.W.: 20/19kg






ELECTRIC HOIST-WT-750,1500

ELECTRIC HOIST-WT-750,1500


Main technical parameters:
Rated Voltage: 110~120V,60Hz
Rated Capacity: 750lb single line; 1500lb double line
Lifting Height: 36ft single line; 18ft double line
Lifting Speed: 33ft/min single line; 16.5ft/min double line
Power: 2hp
Cable length : 39ft
Cable diameter : 5/32" anti-twist
Duty circle: S3 20% 10min
Resister Cable: =3000lbs

Packing
Packing size: 462729cm
Qty./Ctn.: 1pc
G.W./N.W.: 21/20kg





ELECTRIC HOIST-WT-220,440

ELECTRIC HOIST-WT-220,440


Main technical parameters:
Rated Voltage: 110~120V,60Hz
Rated Capacity: 220lb single line; 440lb double line
Lifting Height: 36ft single line; 18ft double line
Lifting Speed: 33ft/min single line; 16.5ft/min double line
Power: 3/4hp
Cable length : 39ft
Cable diameter : 3.18mm
Duty circle: S3 20% 10min
Resister Cable: =1540lb

Packing
Packing size: 453716cm
Qty./Ctn.: 2pcs
G.W./N.W.: 24/22kg






ELECTRIC HOIST-WT-500,1000

ELECTRIC HOIST-WT-500,1000


Main technical parameters:
Rated Voltage: 220~230V,50Hz
Rated Capacity: 500kg single line; 1000kg double line
Lifting Height: 12m single line; 6m double line
Lifting Speed: 10m/min single line; 5m/min double line
Power: 1700W
Cable length : 12m
Cable diameter : 1/8" anti-twist
Duty circle: S3 20% 10min
Resister Cable: =2500kg
Outside dimensions(LWH): mm

Packing
Packing size: 582835cm
Qty./Ctn.: 1pc
G.W./N.W.: 38/36kg




ELECTRIC HOIST-WT-300,600

ELECTRIC HOIST-WT-300,600


Main technical parameters:
Rated Voltage: 220~230V,50Hz
Rated Capacity: 300kg single line; 600kg double line
Lifting Height: 12m single line; 6m double line
Lifting Speed: 10m/min single line; 5m/min double line
Power: 920W
Cable length : 12m
Cable diameter : 4.0mm
Duty circle: S3 20% 10min
Resister Cable: =1500kg
Outside dimensions(LWH): 397154235mm

Packing
Packing size: 524318cm
Qty./Ctn.: 2pcs
G.W./N.W.: 35/33kg


ELECTRIC HOIST-WT-400,800

ELECTRIC HOIST-WT-400,800


Main technical parameters:
Rated Voltage: 220~230V,50Hz
Rated Capacity: 400kg single line; 800kg double line
Lifting Height: 12m single line; 6m double line
Lifting Speed: 10m/min single line; 5m/min double line
Power: 1350W
Cable length : 12m
Cable diameter : 4.5mm
Duty circle: S3 20% 10min
Resister Cable: =2000kg
Outside dimensions(LWH): mm

Packing
Packing size: 604519.5cm
Qty./Ctn.: 2pcs
G.W./N.W.: 43/41kg





ELECTRIC HOIST-WT-250,500

ELECTRIC HOIST-WT-250,500


Main technical parameters:
Rated Voltage: 220~230V,50Hz
Rated Capacity: 250kg single line; 500kg double line
Lifting Height: 12m single line; 6m double line
Lifting Speed: 10m/min single line; 5m/min double line
Power: 760W
Cable length : 12m
Cable diameter : 3.6mm
Duty circle: S3 20% 10min
Resister Cable: =1250kg
Outside dimensions(LWH): 387152185mm

Packing
Packing size: 524318cm
Qty./Ctn.: 2pcs
G.W./N.W.: 35/33kg





ELECTRIC HOIST-WT-200,400

ELECTRIC HOIST-WT-200,400


Main technical parameters:
Rated Voltage: 220~230V,50Hz
Rated Capacity: 200kg single line; 400kg double line
Lifting Height: 12m single line; 6m double line
Lifting Speed: 10m/min single line; 5m/min double line
Power: 780W
Cable length : 12m
Cable diameter : 3.6mm
Duty circle: S3 20% 10min
Resister Cable: =1000kg
Outside dimensions(LWH): 387152185mm

Packing:
Packing size: 454419.5cm
Qty./Ctn.: 2pcs
G.W./N.W.: 35/33kg





ELECTRIC HOIST-WT-125,250

ELECTRIC HOIST-WT-125,250


Main technical parameters:
Rated Voltage: 220~230V,50Hz
Rated Capacity: 125kg single line; 250kg double line
Lifting Height: 12m single line; 6m double line
Lifting Speed: 10m/min single line; 5m/min double line
Power: 580W
Cable length : 12m
Cable diameter : 3.18mm
Duty circle: S3 20% 10min
Resister Cable: =625kg
Outside dimensions(LWH): 350133160mm

Packing:
Packing size: 453716cm
Qty./Ctn.: 2pcs
G.W./N.W.: 24/22kg





ELECTRIC HOIST-WT-100,200

ELECTRIC HOIST-WT-100,200


Main technical parameters:
Rated Voltage: 220~230V,50Hz Rated Capacity: 100kg single line; 200kg double line
Lifting Height: 12m single line; 6m double line
Lifting Speed: 10m/min single line; 5m/min double line
Power: 500W
Cable length : 12m
Cable diameter : 3.18mm
Duty circle: S3 20% 10min
Resister Cable: =500kg
Outside dimensions(LWH): 350133160mm
Packing:
Packing size: 453716cm
Qty./Ctn.: 2pcs
G.W./N.W.: 24/22kg

lifting hook

a device for grabbing and lifting loads by means of a device such as a hoist or crane. Lifting hooks are usually equipped with a safety latch to prevent the disengagement of the lifting wire rope sling, chain or rope to which the load is attached.

Hook may have one or more built - in pulleys to amplify the lifting force.

Major hook manufacturers in the USA are Columbus McKinnon and Crosby.

Types of Electric Hoists

The basic hoist has two important characteristics to define it: Lifting medium and power type. The lifting medium is either wire rope, wrapped around a drum, or load-chain, raised by a pulley with a special profile to engage the chain. The power type can be either electric motor or air motor. Both the wire rope hoist and chain hoist have been in common use since the 1800s. A hoist can be built as one integral-package unit, designed for cost-effective purchasing and moderate use, or it can be built as a built-up custom unit, designed for durability and performance. The built-up hoist will be much more expensive, but will also be easier to repair and more durable. Package units are designed for light to moderate usage, while built-up units are designed for heavy to severe service. A machine shop or fabricating shop will use an integral-package hoist, while a Steel Mill or NASA would use a built-up unit to meet durabilty, performance, and repairability requirements.

Construction hoists

Also known as a Man-Lift, or construction elevator, this type of hoist is commonly used on large scale construction projects, such as high-rise buildings or major hospitals. The purpose being to carry personnel and materials quickly between the ground and higher floors, or between upper floors.
The construction hoist is made up of either one or two metallic cages which travel vertically along stacked mast tower sections. For controlled travel along the mast sections, most modern construction hoists utilize a motorized rack-and-pinion system mounted onto the mast sections, while some older hoists still utilize a system of counterweights.

Chain or wire ropes of electirc hoist

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 which then activates the block to take up the main lifting chain.
A hand powered hoist with a ratchet wheel is known as a "ratchet lever hoist" or, colloquially, a "Come-A-Long". The original hoist of this type was developed by Abraham Maasdam of Deep Creek, Colorado about 1919, and later commercialized by his son, Felber Maasdam, about 1946. It has been copied by many manufacturers in recent decades.
Ratchet lever hoists have the advantage that they can usually be operated in any orientation, for pulling, lifting or binding. Chain block type hoists are usually suitable only for vertical lifting.
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 (20 m/min), requires wire rope wound on a drum, because chain over a pocket wheel generates fatigue-inducing resonance for long lifts.
The unloaded wire rope of small hand powered hoists often exhibits a snarled "set", making the use of a chain hoist in this application less frustrating, but heavier. In addition, if the wire in a wire hoist fails, it can whip and cause injury, while a chain will simply break.

Chainfall

A chainfall is another example of a hoisting device consisting of a chain suspended from or laid over a fixed structure such as a beam, or on well built saw horses resting on well supported joists used to lift heavy objects, such as steel beams, microlaminated structural beams, vehicle engines etc. Depending on the situation there are many other temporary rigs that can be improvised for lifting heavy objects with the tool. This principle is very similar to a block and tackle.
The information above is partially from: http://en.wikipedia.org/wiki/hoist


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