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Explosion Proof Wire Rope Hoist, Explosion proof & Spark Proof, Safe Rope Hoist

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Product Type:   BCD Explosion Proof Wire Rope
Lifting Capacity:   0.5-32 ton
Span:   -
Lifting Height:   6-30m
Working Class:   M3
Ambient Temperature:   -20℃~+40℃


What is explosion proof electric wire rope hoist?
A distinctive feature of explosion proof hoist is spark resistant, including things such as bronze wheels on trolleys, bronze hooks, stainless steel wire rope to accomplish the necessary spark resistance.

Explosion proof hoist is needed in those places wherever explosive gases or dusts exist, for instance, in oil rigs, in gas liquefaction plants, in mines or in the chemical industry, and in the other branches of industry including petrochemical industries, power generation. Food and pharmaceuticals industries also need the explosion proof. All in all, this rope hoist commonly serves industries include the oil, gas, power generation, and water treatment, pharmaceutical, and chemical industries worldwide.

Explosion proof wire rope hoist
Explosion proof hoist is a specially designed rope hoist with the features of explosion proof. Explosion proof electric hoist is designed and manufactured according to GB3836-2000 provisions and international regulations, with the explosion proof mark of D II BT4 and D II CT4, which can be supplied to applications that has the level of II A, II B, II C grade, the temperature sub-groups T1-T4 group of combustible gas, steam and air from the explosion gas mixtures in zone 1, zone 2 areas.

Flame proof hoist can be suspended on the I-beam to lift loads doing straight line or curve movement, or installed on the fixed bracket to lift loads in vertical direction. It can also be mounted to different lifting equipment such as single or double girder overhead crane, gantry crane, jib crane and so on. We Yuantai supply this hoist for minor duty applications on overhead cranes, gantry cranes, jib cranes and monorail applications.

Types of flame proof hoist
Explosion proof wire rope electric hoist model is divided into two kinds: BCD type explosion proof hoist and HD type explosion proof hoist.

The main parameters of BCD type explosion proof wire rope hoist
Lifting Capacity: 0.5-16ton
Lifting Height: 6-18m
Lifting speed: 0.3-8m/min
Explosion-proof Grade: ExdBT4, ExdCT4
Working Class: M3
Ambient Temperature: -20℃~+40℃
Ambient Humidity: ≤85%
Ambient Altitude: below 1000m
Ambient Power: 3-phase 380v 50HZ

The main parameters of HB type explosion proof hoist
Lifting Capacity: 1~32t
Lifting Height: 6~30m
Lifting Speed: 3/0.3—8/0.8m/min
Working Class: M3
Explosion-proof Grade: ExdⅡBT4 / CT4
Ambient Temperature: -20℃~+40℃
Ambient Humidity: ≤85%
Ambient Altitude: below 1000m
Ambient Power: 3-phase 380v 50HZ

Application of explosive proof hoist
The electric explosion proof hoist has a capacity of 0.5 to 16 tons and can be suspended from an I beam or a fixed support, as well as equipped with explosion-proof single and double girders for material handling. 

The electric explosion proof hoist can be put on a fixed bracket as a lifting option for heavy loads, or it can be utilized on the main I-beam track to run in straight or curve lines to handle materials. Explosion-proof electric hoists can also be used in a variety of situations, such as working with an explosion-proof single girder overhead travelling crane or an explosion-proof double beam bridge crane.
 

Features of flame proof hoist
Lifting motor
Lifting motor of rope hoist is with the full explosion proof enclosure.
Lifting motor adopt professional tapered rotor asynchronous motor.
Max. torque of lifting motor is 2-3 times of full loading, ensuring the safety and reliability of explosion proof hoist.
The insulation of lifting motor is class B or F and the protection class is IP44/IP55.
Lifting reducer
Explosive proof hoist adopts standardized modulus of cylindrical gears, installed with antifriction bearing, which is convenient to maintenance.
High strength gear and gear shaft are made from heated alloy steel.
Lifting reducer shell is made of high quality cast iron which is closely assembled and is dust proof.
On hook
The hook of explosive proof hoist is made of high quality carbon steel, supported in the hook bean through a single scroll thrust bearing, free oscillation.
The hook head is made of stainless steel where hook end of explosion proof uses card board type structure and the explosion proof degree is DIIT4.
Hook for 5 ton and below loads is single slippery wheel whereas hook for 10 ton or heavier loads is double side wheel.
Protection devices
Electric equipment is enclosed with explosion proof type electric control box, explosion proof control board and explosion proof limiting stopper.
Adopt special no-spark materials, and adopt some precautionary measures.
Explosion-proof measures are taken to mechanical components to prevent temperature sparks produced by electric hoist traveling, such as lifting and running reducer injected with proper amount of machine oil, reel, wire rope coated with grease, and stop block in the limited rod and joint of limit apply made with bronze or stainless steel. Explosion proof handled wheel is used on the explosion proof hoists.
Comply with high standard in manufacturing.
Explosion proof electric wire rope hoists are a series of products, designed and fabricated under the National Standard of GB3836-2000 (Electrical Apparatus for Explosive Gas Atmospheres). Both self-made and complemented factory-made explosion-proof motors and electrical apparatuses are designed, fabricated, checked and accepted according to the National Standard GB3836.1-2000 (General Requirements of Electrical Apparatus for Explosive Gas Atmospheres) and GB3836.2-2000 (Electrical Apparatus for Explosive Gas Atmospheres Flame-proof Enclosure “d”).

Certifications of Yuantai rope hoist
Certificate of CE
Certificate of ISO14001
FEM standard electric hoist craneCertificate of ISO9001
Advantages of explosive proof hoist
Compact structure, small size, light weight, large capacity.
Highly consistent with national standards, reliable and effective.
Modular design, all the spare parts are generalized and changeable, which make hoist maintenance easy and simple.
No spark materials are used to the outside parts enhancing anti-explosion ability of electric hoist.
Explosion proof hoist, safe hoist
Degree of protection
Explosion proof electric hoist is mainly divided into three degree of protection ⅡA, ⅡB, ⅡC , temperature groups for T1-T4 which apply for the workplace with flammable gas or explosive gas, steam and air mixture.
Explosion proof electric hoist can be divided into Grade B and Grade C. Explosion proof hoist is generally applicable in zone 1 and zone 2. The applicable temperature mainly from T1-T6, if it is approaching lever T6, that means that it arrives the highest temperature limit. For example, DIICT4 stands for: D is for flameproof type, II is for class II explosion which represents factory explosion proof, C is for C-level explosion proof area which represents the most dangerous areas, T4 is for temperature class. The explosion proof electric hoist is frequently of DIICT4 level currently.
Explosion proof wire rope hoist
Definitions
Explosion classified areas are defined by the following classes, divisions and groups, by the National Electric Code.

Class
Class I - Locations: Are those in which flammable gases or vapors are or may be present in the air in quantities sufficient to produce explosive or ignitable mixtures.

Class II - Locations: Are those in which are hazardous due to the presence of combustible dust.

Class III - Locations: Are those which are hazardous due to the presence of easily ignitable fibers or flyings, but in which such fibers or flyings are not likely to be in suspension in the air in quantities to produce ignitable mixtures.

Division
Division I - Locations in which hazardous concentrations in the air exist continuously, intermittently, or periodically under normal operating conditions.

Division II - Locations in which hazardous concentrations are handled, processed, or used but are normally within closed containers or closed systems from which they can escape one in case of accidental rupture or breakdown.

Group (Class I)
Group A - Atmospheres containing acetylene.

Group B - Atmospheres containing hydrogen, or gases (or vapors) of equivalent hazard, such as manufactured gas.

Group C - Atmospheres containing ethyl-ether vapors, ethylene or cyclo propane.

Group D - Atmospheres containing gasoline, hezane, naptha, benzine, butane, alcohol, acetone, benzol, lacquer solvent vapors, or natural gas.

Group (Class II)
Group E - Atmospheres containing metal dust, including aluminum, magnesium and their commercial alloys and other metals of similarly hazardous characteristics.

Group F - Atmospheres containing carbon black, coal, or coke dust.

Group G - Atmospheres containing flour, starch, or grain dust.

Yuantai explosion proof hoist is of great quality and reliability, you can be assured to choose us. Just leaving your message and questions, we will give you recommendations and answers in 24 hours!


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