Explosion-Proof Electric Chain Hoist 0.5T–7.5T

Explosion-proof Performance: Equipped with explosion-proof motor and electrical control system to ensure safe operation in hazardous environments.
Durable Structure: High-strength alloy steel chain, corrosion-resistant components, and reinforced hooks provide long service life.
Smooth & Safe Operation: Reliable braking system, overload protection, and limit protection ensure stable and secure lifting performance.
Wide Applications: Designed for oil, chemical, mining, pharmaceutical, and other industries requiring safe lifting solutions.

Product Detail

ATEX & Flameproof Hazardous Area Hoist

Explosion-proof Electric Chain Hoist is a specialized lifting system designed specifically for material handling operations in explosive, flammable, and hazardous environments. Engineered with flameproof enclosures, non-sparking components, and anti-static load chains, this electric chain block effectively eliminates electrical and mechanical spark hazards caused by friction or impact in volatile atmospheres.

As a qualified motorized chain hoist manufacturer and exporter, we provide certified explosion-proof solutions for load capacities from 0.5 Ton to 7.5 Ton. Our Ex-certified hoists comply with international safety standards for Zone 1, Zone 2, Zone 21, and Zone 22 applications, serving as the essential lifting engine for refineries, chemical processing plants, and underground mining facilities.

Core Engineering Features for Hazardous Environments

Flameproof & Explosion-Proof Enclosures: All motor assemblies, junction boxes, and electrical control units are housed in heavy-duty Ex d flameproof enclosures designed to contain internal explosions without igniting surrounding flammable gases or vapors.
Non-Sparking Mechanical Components: Critical friction points—including the lifting hook, trolley wheels, chain guides, and load sheaves—are coated or cast with copper alloy / beryllium bronze materials to ensure non-sparking performance during mechanical impacts.
Anti-Static G80 Load Chain & Components: High-strength heat-treated manganese alloy load chain treated with specialized anti-corrosion and anti-static surface finishes to prevent electrostatic discharge in dusty or gaseous zones.
Heavy-Duty Copper Ex-Motor: Features high-torque explosion-proof pure copper motors equipped with internal thermal sensors to prevent motor housing overheating under continuous duty cycles.
Vibration-Dampened Precision Gearing: Sealed oil-bath gearboxes reduce mechanical friction, operating temperatures, and wear, ensuring ultra-quiet, stable operation in high-risk zones.

Product Specification

Rated Weight (kg)	Lifting Speed (m/min)	Lifting Height (m)	Motor Model	Motor Power (W)	Motor Speed (r/min)	Power Supply Voltage (V)
1000	2.25	3–12	YHPE500-4	500	1380	380
2000	1.85	3–12	YHPE500-4	500	1380	380
3000	1.1	3–12	YHPE750-4	750	1380	380
5000	0.9	3–12	YHPE750-4	750	1380	380
7500	0.6	3–12	YHPE750-4	750	1380	380
10000	0.45	3–12	YHPE750-4	750	1380	380

Multi-Layer Protective Safety System

Safety is non-negotiable in hazardous industrial environments. This Explosion-proof Electric Chain Hoist incorporates multiple fail-safe protection layers:

Flameproof Electromagnetic Brake System: Enclosed fail-safe electromagnetic brake responds in milliseconds during power disruptions, locking the load securely without generating external electrical arcs.
Explosion-Proof Upper & Lower Limit Switches: Sealed Ex-rated limit switches disengage motor power automatically before hook over-travel occurs, preventing mechanical structural impacts.
Overload Mechanical Protection: Integrated friction clutch protects transmission gears and structure against accidental overloading beyond rated tonnage.
Non-Sparking Forged Safety Hooks: Drop-forged safety hooks feature copper-coated surfaces, 360-degree rotation, and anti-spark safety latches to ensure safe rigging.
Intrinsically Safe Low-Voltage Pendant Control: Standard 24V/36V low-voltage control pendant with Ex d buttons isolates operators from electrical hazards.

Industrial Applications in High-Risk Zones

Our explosion-proof lifting equipment provides certified safety for hazardous operations across diverse industries:

Petrochemicals, Oil & Gas: Tank maintenance, valve replacement, pipeline lifting, and equipment overhaul on offshore platforms and oil refineries.
Chemical & Paint Manufacturing: Material loading and agitator vessel positioning in environments containing volatile organic solvents, vapors, and chemical dusts.
Pharmaceutical & Cleanroom Processing: Precise equipment maintenance and material handling under strict environmental safety standards.
Coal Mining & Fuel Storage: Underground coal seam material transport, fuel depot operations, and hazardous gas storage maintenance.
Defense & Aerospace Processing: Handling sensitive energetic materials, ordnance assembly, and chemical propellant storage logistics.

Products Details

Explosion-proof thickened cover, thickened to prevent collision.

Explosion proof hook with all copper configuration to prevent sparks during use

Double guide wheels prevent chain jamming

Internal Structure

Non-Sparking Certified Safety Hooks: CE-certified safety hooks eliminate friction spark risks in flammable and explosive environments.
Impact-Resistant Structural Wall Plates: Thickened side plates prevent frame distortion during high-capacity dynamic lifts.
Compliance & Traceability Nameplate: Official metallic nameplate verifying Ex ratings for easy industrial site inspections.
ATEX/Ex Standard Protective Enclosure: Fully sealed shell contains internal electrical sparks, ensuring 100% safe operation near volatile gases.
Heat-Isolating Internal Barrier: Heavy-duty partition prevents motor heat transfer to sensitive mechanical gears.
High-Strength Anti-Wear Gearing: Quenched alloy gears resist tooth wear and stripping during continuous heavy-duty cycles.
Heavy-Duty Reinforced Core Frame: Hardened inner shell guards internal drive assemblies against job-site collisions.
Non-Sparking Alloy Load Chain: Specially treated Grade 80 load chain resists corrosion, wear, and accidental sparking.
Jam-Free Chain Guidance Mechanism: Dual guide rollers eliminate chain binding, ensuring smooth vertical motion at all lifting angles.
Burnout-Resistant Copper Motor Windings: Flameproof pure copper motor structure maximizes thermal efficiency and operational life.
Instant Power-Off Load Lock: Fail-safe magnetic brake pads lock the dynamic load instantly if electrical power is cut.
ARC-Isolating Motor Housing: Heavy cast motor enclosure completely isolates electrical contacts from atmospheric hazards.
IP-Rated Hazardous Environment Controller: Explosion-proof, ergonomic controller engineered for safe, precise operation in chemical and mining sites.

Customization & OEM Support for B2B Clients

We offer tailored Ex-certified manufacturing options for engineering contractors, plant system integrators, and international equipment dealers:

Custom Explosion-Proof Ratings: Standard Ex d IIB T4, customizable to Ex d IIC T4 (for hydrogen/acetylene environments) or dust explosion protection Ex tD.
Mounting & Travel Options: Available as hook-suspended units, manual push trolley configurations, or Ex motorized travel trolleys for I-beam monorails.
Specialized Stainless Steel / Galvanized Components: Stainless steel load chains and galvanized chain containers for marine offshore corrosion protection.
Global Voltage Adaptability: Complete support for 220V, 380V, 415V, 440V, 480V, and 575V at 50Hz or 60Hz 3-phase systems.

Manufacturing Compliance & Quality Assurance

Certified Ex Compliance: Built in accordance with strict international explosion-proof standards (ATEX / IECEx directives / ISO9001 certification).
100% Factory Safety Testing: Every Ex hoist undergoes dielectric withstand testing, spark-proof inspection, and full-load dynamic testing prior to export dispatch.
Comprehensive Factory Documentation: Shipped with complete Ex inspection certificates, operation manuals, and full spare parts traceability.

Frequently Asked Questions

Q1: What is the difference between Ex d IIB T4 and Ex d IIC T4 explosion-proof ratings?

A: Ex d IIB T4 is suitable for most flammable gases such as ethylene and methane. Ex d IIC T4 provides a higher level of protection required for extremely volatile gases like hydrogen and acetylene.

Q2: How do you prevent mechanical sparks during chain or hook contact?

A: We utilize copper-plated or bronze-coated hooks, non-sparking chain guides, and copper-alloy trolley wheels to ensure that friction or accidental collisions do not produce thermal sparks.

Q3: Can this explosion-proof chain hoist be installed on a monorail beam?

A: Yes. It can be paired with our Ex-rated manual push trolley or Ex motorized travel trolley to operate safely on monorail I-beams, H-beams, or overhead bridge cranes.

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