Flameproof Wire Rope Electric Hoist
Heavy-Duty Flameproof Wire Rope Electric Hoist for Hazardous Areas
Jayco Cranes manufactures and supplies Flameproof Wire Rope Electric Hoists for industrial lifting and material handling applications in hazardous environments. These hoists combine a modular wire-rope lifting mechanism with flameproof electrical equipment, fail-safe braking, adjustable limit switches and specialized construction for applications where flammable gases or vapours may be present.
Jayco’s published information states that its flameproof hoists are available in lifting capacities up to 25 tonnes and lifting heights up to 50 metres, with flameproof construction designed for hazardous-atmosphere gas groups I, IIA, IIB and IIC. The company also states that its flameproof hoists are manufactured in accordance with IS-3938, with electricals housed in flameproof enclosures conforming to IS-2148.
Technical note: Hazardous-area classification and certification must always be matched to the exact hoist configuration and project requirements. Do not assume that every configuration has every gas-group or certification approval.
What is a Flameproof Wire Rope Electric Hoist?
A Flameproof Wire Rope Electric Hoist is an electrically operated lifting machine that uses a steel wire rope wound around a drum to raise and lower heavy loads in hazardous industrial environments.
The hoist combines:
- Electric lifting motor
- Gearbox
- Wire rope drum
- Steel wire rope
- Flameproof electrical components
- Fail-safe brake
- Limit switches
- Electrical control panel
- Travelling trolley where required
The flameproof construction is intended to prevent electrical equipment from becoming an ignition source in designated hazardous environments.
Jayco’s wire rope hoists use a modular construction, with individual brake, motor, gearbox, wire-rope drum, electrical control panel and trolley assemblies designed for accessibility during maintenance.
Jayco Flameproof Wire Rope Electric Hoist
Jayco Flameproof Wire Rope Electric Hoists are designed for demanding applications in industries such as:
- Chemical plants
- Petrochemical plants
- Pharmaceutical industries
- Fertilizer plants
- Petroleum and mineral oil industries
- Steel plants
- Foundries
- Cement plants
- Process industries
- Hazardous material handling facilities
Jayco’s published information specifically identifies hazardous-atmosphere applications and gas groups I, IIA, IIB and IIC for its flameproof hoist range.
Key Features of Flameproof Wire Rope Electric Hoist
Flameproof Electrical Construction
Electrical components are housed in flameproof enclosures appropriate to the specified design and applicable certification.
Modular Construction
The motor, brake, gearbox, wire-rope drum, control panel and travelling trolley are arranged as separate accessible units.
Fail-Safe Brake
Jayco specifies a 100% fail-safe instant-action brake that automatically operates during power failure.
Adjustable Limit Switches
Limit switches are provided to prevent excessive over-hoisting and over-lowering and can be adjusted for the required working height.
Low-Voltage Pendant Control
Jayco’s published specifications identify pendant push-button controls operating at 42/110 V, depending on configuration, for operator safety.
Low-Headroom Configuration
Travelling trolley configurations can be designed with the trolley positioned parallel to the beam to reduce required headroom.
Customized Engineering
Capacity, lifting height, speeds, trolley arrangement and other specifications can be developed according to the application.
Technical Specifications
| Parameter | Jayco / Available Specification |
|---|---|
| Product | Flameproof Wire Rope Electric Hoist |
| Hoist Type | Wire Rope Electric Hoist |
| Operation | Electric |
| Capacity | Up to 25 Ton |
| Lifting Height | Up to 50 m |
| Construction | Modular / Flameproof |
| Rope | Steel Wire Rope |
| Brake | Fail-Safe Instant-Action Brake |
| Limit Switch | Adjustable Upper & Lower |
| Trolley | Fixed / Motorized / Geared / Push-Pull |
| Headroom | Low-Headroom Configuration Available |
| Pendant | Low-Voltage Push Button |
| Hazardous Area | Application / Certification Specific |
| Gas Groups | Published range includes I, IIA, IIB & IIC |
| Standard Reference | IS-3938 |
| Flameproof Enclosures | IS-2148 |
| Customization | Available |
Jayco’s older product information states capacities up to 25 tonnes and lifting heights up to 50 metres, while its wire-rope hoist page describes capacities from 500 kg to 20,000 kg for its general wire-rope range. The exact capacity should therefore be specified against the required flameproof configuration rather than assuming every capacity is available in every design.
Flameproof Wire Rope Hoist for Hazardous Areas
Hazardous-area lifting equipment requires more than simply selecting a high-capacity hoist.
Before specifying a flameproof wire rope hoist, determine:
- Required safe working load
- Lifting height
- Hoisting speed
- Travel speed
- Duty classification
- Hazardous-area classification
- Gas or dust hazard
- Gas group
- Temperature class
- Required certification
- Ambient temperature
- Trolley configuration
- Crane configuration
- Power supply
This information allows the manufacturer to select the appropriate electrical and mechanical components.
Flameproof Hoist Gas Groups
Jayco’s published flameproof-hoist information identifies suitability for hazardous-atmosphere gas groups:
- Group I
- Group IIA
- Group IIB
- Group IIC
However, the applicable group must be confirmed against the exact hoist model, electrical components and certification documentation.
This is particularly important for applications involving hydrogen, acetylene, solvents and other highly hazardous gases.
