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BNR Explosion Proof Wire Rope Electric Hoist

The BNR explosion-proof wire rope electric hoist developed and manufactured for hazardous working environments complies with IECEx and 94/9/EC ATEX standards and regulations. It is developed on the basis of the NR hoist to meet the special operational requirements for working in an explosive environment with safety and reliability. The BNR hoist can be used in explosive atmospheres (gas Zone 1 and Zone 2, dust Zones 21 and 22). BNR wire rope hoist has modular design, flexibility and compact in construction, with a rated load from 3,200 kg to 50,000 kg and standard working duty FEM 2M.

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Safety and reliability is especially important in hazardous environments, where safety and efficiency are key. All crane components are selected to ensure the high level of safety required for the hazardous atmospheres in chemical and petrochemical plants, pharmaceutical, oil refineries, gas power plants, shipyard, waste water treatment plants, paint shops and other industrial sites. Our hoists have been designed and built to provide years of reliable and safe operation.

BNR Explosion-proof hoists has high reliability and exceptional service life, it runs smoothly and offers exact load positioning.

1. Explosion-proof class up to Exd Ⅱ CT4/Ex tD A21 IP65 T130℃

2. Dual speed hoisting motor and variable frequency control travelling motors enables easy and accurate load handling.

3. Heavy-duty 50% ED hoisting motors and 40% ED travelling motors with thermistors for overheat protection.

4. Electro-mechanical overload protector.

5. 2-step hoisting limit switch for safe load handling.

6. Hoist electrics with main contactor and 48V contactor control.

7. Hoisting and travelling motor protection IP65.

8. Pendant and remote operation panel with an emergency “stop” button.

Definition for Hazardous Locations According to ATEX

EX ZONES – GAS ENVIRONMENT

Zone 1

A place in which an explosive atmosphere consisting of a mixture with air or flammable substances in the form of gas, vapour or mist is likely to occur in normal operation occasionally.

Zone 2

A place in which an explosive atmosphere consisting of a mixture with air of flammable substances in the form of gas, vapour or mist is not likely to occur in normal operation but, if it does occur, will persist for a short period only.

ENVIRONMENTS EX ZONES – DUST ENVIRONMENT

Zone 21

A place in which an explosive atmosphere in the form of a cloud of combustible dust in air is likely to occur in normal operation occasionally.

Zone 22

A place in which an explosive atmosphere in the form of a cloud of combustible dust in air is not likely to occur in normal operation but, if it does occur, will persist for a short period only.

Explosion Hazardous Areas Zones Separation
Zone Gases	Zone Dusts	Probability of an explosive atmosphere
0	20	Very High –Explosive atmosphere is continual or very frequent.
1	21	High –Explosive atmosphere is occasional.
2	22	Low – Explosive atmosphere rarely occurs.