Explosion-Proof Hoists for Zone 1 & 2 | Industrial-Grade Flameproof Wire Rope Hoists
Industrial-Grade Flameproof Hoists 0.25 Ton –63 Ton for Explosive Zone Lifting Safety

Introduction of Flameproof Wire Rope Hoists

Wire rope hoists are the workhorses of heavy lifting. They use strong steel cables wound around a drum to lift and lower loads smoothly and safely. Because of their strength and reliability, they are widely used in factories, warehouses, and heavy industries.

In hazardous environments, like chemical plants or oil refineries, safety is the top priority. These places often have explosive gases or vapors in the air. A regular hoist could create sparks or heat that might ignite these gases. That's why flameproof wire rope hoists are essential. They are specially designed to prevent any sparks or flames from escaping, keeping your workplace safe and compliant with strict safety standards.

Our industrial-grade flameproof wire rope hoists cover a broad range of lifting capacities. Whether you need to lift a light 0.25-ton load or heavy loads up to 63 tons, there's a model designed to fit your exact needs. This flexibility makes them perfect for many industries that demand both power and safety.

Explosive Atmospheres

An explosive atmosphere is a mix of air and flammable gases, vapors, or dust that can ignite under the right conditions. These environments need special equipment to prevent accidents and keep workers safe.

To manage these risks, explosive zones are classified based on how often and how long dangerous gases or vapors are present:

• Zone 1: Areas where explosive gases are likely to be present during normal operations, but not constantly.
• Zone 2: Areas where explosive gases are unlikely to be present, and if they appear, it's only for a short time.

Knowing which zone you are working in helps select the right flameproof equipment.

Gases in these zones are grouped based on their explosiveness and ignition risk:

• Group IIA: Less explosive gases, like propane.
• Group IIB: More hazardous, including ethylene.
• Group IIC: The most explosive, such as hydrogen and acetylene.

Temperature classes tell us the highest surface temperature an equipment can reach without igniting surrounding gases:

• From T1 (450°C) down to T6 (85°C), lower numbers mean hotter equipment. The right class depends on your gas type.

These zones and classifications are critical in many industries, including:

• Petrochemical plants where flammable liquids are stored.
• Oil and gas refineries handling volatile fuels.
• Paint spray workshops with solvent vapors.
• Coal mining operations with methane gas.
• Chemical manufacturing where vapors can accumulate.

Why Choose Flameproof Wire Rope Hoists?

Working in hazardous areas means you're dealing with gases or vapors that can easily catch fire. Even a tiny spark can trigger a serious explosion. That's why ordinary hoists just won't do.

Risks of Sparks and Ignition

Regular hoists have parts that can create sparks—like brakes, motors, or electrical contacts. In explosive atmospheres, these sparks are a major danger. If a spark meets flammable gas, the result can be catastrophic.

Safety Advantages of Flameproof Hoists

Flameproof wire rope hoists are built to prevent this risk. Their key features include:

• Explosion-proof enclosures that contain any sparks or flames inside the hoist.
• Spark-resistant materials on moving parts to avoid ignition.
• Motors and brakes designed to operate without generating hot sparks.
• Sealed electrical components to keep dust, moisture, and gases out.

This design not only protects your site but also keeps your workers safe and your operations running smoothly.

Compliance with International Standards

Choosing flameproof hoists means you meet strict safety rules worldwide. These hoists are tested and certified to standards like:

• ATEX in Europe
• IECEx globally
• GB standards in China

Having certified equipment lowers legal risks and insurance costs. It also reassures your team and clients that safety is a priority.

Core Features of Industrial-Grade Flameproof Wire Rope Hoists

Flameproof wire rope hoists are built tough with features designed to keep operations safe, reliable, and efficient in explosive atmospheres.

• Flameproof Motor and Electrical Components: The hoist motors and electrical systems are housed in special flameproof enclosures. This means if any sparks or flames happen inside, they are fully contained and cannot ignite surrounding gases or dust. This feature is critical for use in hazardous zones where flammable vapors or dust are present.
• Spark-Resistant Materials for Key Parts: Important components like hooks, brakes, and contact surfaces use bronze or stainless steel. These materials are chosen because they don't create sparks from friction or impact. This greatly reduces the chance of accidental ignition during lifting and lowering operations.
• Robust Modular Gearbox with High-Efficiency Reducer: The hoist uses a modular cylindrical gearbox, which simplifies maintenance and parts replacement. Its design ensures high efficiency (up to 96%), reducing heat buildup during operation. This efficiency means longer motor life and smoother, quieter lifting.
• Available Single and Double Speed Lifting Options: The hoist offers flexibility with single or double speed options. Double speed is especially useful when you want to lift loads quickly over long distances and then slow down for precise load placement. This control improves safety by preventing sudden load swings or jolts.
• Explosion-Proof Control Systems and Safety Limiters: Controls, push buttons, and limit switches are sealed and certified explosion-proof. This prevents any electrical sparks from escaping the control enclosure. Additionally, limiters protect the hoist by stopping the load before it reaches dangerous travel limits or overload conditions. This reduces the risk of mechanical failure and enhances operator safety.

Technical Specifications and Capacities

Our flameproof wire rope hoists cover a wide range of lifting needs. Whether you need something small or heavy-duty, there's a model for you.

Lifting Capacity

• Starts at 0.25 tons for light tasks.
• Goes up to 63 tons for big industrial loads.
  You can pick the right one based on what you need to lift.

Lifting Height and Speed

• Can lift up to 100 meters or more, depending on the model.
• Travel speeds vary to fit your job: fast for quick moves, slow for precise positioning.
• Some hoists come with dual-speed options, so you get both speed and control.

Power Supply

• Standard is 380 V, 50 Hz three-phase power—common in many factories.
• Options like 220 V or 440 V at 60 Hz are available if your site needs them.
  This flexibility makes it easier to fit into your existing setup.

Size and Weight

• Smaller hoists are compact and light—perfect for tight spaces.
• Larger ones are heavier and need stronger supports.
  Knowing the size helps you prepare the right runway beams and structures.

In short, these hoists are designed to be safe, flexible, and reliable. They handle a wide variety of jobs in explosive environments without breaking a sweat.

Design Configurations and Installation Options

Choosing the right design and installation setup is key to getting the best from your flameproof wire rope hoist. Different jobs and spaces call for different solutions.

Electric trolley travelling wire rope electric explosion proof hoist 

explosion proof wire rope hoist with fixed type design

Electrical trolley explosion proof and flame proof wire rope hoist crane 

Double girder explosion proof hoist crane 

large lifting height explosion proof wire rope hoist for customized material handling conditions 

Large capacity explosion proof hoist for heavy lifting 

Stationary Fixed Hoists vs. Trolley-Mounted Models

• Stationary fixed hoists are bolted in place. They're great when lifting happens mostly in one spot.
• Trolley-mounted hoists move along a beam or crane runway. This gives you more flexibility and covers larger work areas.

Low-Headroom and Standard Headroom Designs

• Low-headroom hoists fit in tight spaces where ceiling height is limited. They keep lifting capacity high without needing extra vertical space.
• Standard headroom models work well in workshops and factories with enough overhead clearance. They're simpler and sometimes more economical.

Integration with Overhead Cranes and Monorails

• These hoists are designed to easily fit with existing overhead cranes or monorail systems.
• Whether you need to upgrade an old setup or build a new one, our hoists can be tailored to fit seamlessly.

Custom Configurations for Specific Industrial Needs

• Sometimes, standard hoists won't cut it. For special industries or unique spaces, custom solutions are available.
• This can mean altered hook heights, special control options, or reinforced frames for heavy-duty use.

The goal is to match your exact needs. The right configuration makes work safer, easier, and more efficient.

Performance and Reliability

flameproof wire rope hoists are designed to deliver reliable, consistent performance in tough industrial settings.

Duty Classification and Operational Cycles

• The hoists meet the M3 duty classification under FEM standards, making them perfect for low to medium-frequency lifting tasks.
• This means they handle moderate work cycles without excessive wear, ideal for industries with steady but not continuous lifting demands.

Thermal Protection and Motor Efficiency

• Each motor is equipped with built-in thermal protection. This stops the motor from overheating, which can cause damage or failure.
• The motors run efficiently at less than 80% of their rated temperature, even under full load. This helps extend their life and reduces energy costs.

Maintenance-Friendly Modular Design

• The modular construction of key components, such as the gearbox and motor assemblies, allows for quick and easy part replacements.
• This design reduces downtime during repairs or routine maintenance, making it easier for your maintenance team to keep the hoist in top shape.
• Clear access points and standardized parts also simplify troubleshooting and servicing.

Overall, these features ensure that hoists offer dependable, long-lasting operation. You get less unexpected downtime, smoother workflows, and better safety for your workers.

Industry Applications

flameproof wire rope hoists are built to work safely and efficiently in industries where explosive atmospheres are common. Their design and certifications make them the right choice for demanding environments.

Safety Certifications and Compliance

Safety is the top priority when working in explosive environments. Our flameproof wire rope hoists come with strict certifications to ensure they meet global safety standards.

Flameproof Rating Standards Explained

• The hoists carry the Exd IIBT4 and Exd IICT4 ratings.
• "Exd" means the equipment has a flameproof enclosure that prevents any internal explosion from escaping and igniting the outside atmosphere.
• The gas groups IIB and IIC specify the types of gases the hoist is safe to use around — from less to more volatile gases.
• Temperature classes T4 indicate the maximum surface temperature the hoist parts can reach, ensuring it won't ignite surrounding gases.

Third-Party Certifications and Quality Control

• Our hoists undergo independent testing by recognized bodies, such as the Jiamusi branch of CNEX.
• These third-party certificates confirm the hoists meet all national and international explosion-proof requirements.
• Quality control is strict at every manufacturing stage—from raw material checks to final assembly inspections.

Testing and Inspection Protocols

• Before delivery, each hoist is put through rigorous tests to simulate real hazardous conditions.
• Tests include spark tests, pressure resistance, and electrical insulation checks.
• Regular inspection guidelines are provided to maintain the explosion-proof integrity throughout the hoist's life cycle.

By choosing flameproof hoists, you are getting equipment that not only performs well but also keeps your workplace safe and compliant with global standards.

Maintenance and Service Guidelines

Proper maintenance is key to keeping your flameproof wire rope hoists safe and working smoothly over the long term. Regular care helps avoid costly breakdowns and ensures safety in explosive environments.

Routine Inspection and Lubrication

• Inspect critical parts like ropes, hooks, brakes, and limit switches every month.
• Lubricate gears, bearings, and wire ropes according to the manufacturer's schedule. Proper lubrication reduces wear and prevents rust.
• Check the flameproof enclosure seals for damage or corrosion, as these keep sparks contained.

Recommended Maintenance Practices

• Follow the detailed maintenance manual provided by Yuantai, which covers daily, monthly, and annual tasks.
• Replace worn or damaged parts immediately to prevent failures.
• Conduct regular electrical system checks to ensure wiring and control panels are intact and explosion-proof.
• Train operators and maintenance staff on flameproof equipment care and safe handling procedures.

Troubleshooting Common Issues

• If the hoist overheats, check motor ventilation and thermal protection systems.
• Unusual noises often indicate gear wear or lack of lubrication. Address these quickly.
• Limit switch malfunctions can cause stopping errors—inspect and test regularly.
• Electrical faults or erratic control response may point to wiring damage or control system issues needing professional attention.

By sticking to these maintenance guidelines, you extend your hoist's service life and keep your hazardous site running safely without interruptions.

Buyer's Checklist: Selecting the Right Flameproof Hoist

Choosing the right flameproof wire rope hoist isn't just about picking the biggest or most powerful model. It requires careful thinking about your specific site, needs, and safety requirements. Here's a checklist to guide you:

Assess Atmosphere Classification and Zone Requirements

• Identify the hazardous zone where the hoist will operate—Zone 1 or Zone 2.
• Confirm the gas group present (IIA, IIB, IIC) and temperature class (T1–T6). This ensures the hoist's flameproof rating matches the environment.
• Verify if the application requires special certifications like ATEX or IECEx.

Determine Lifting Capacity and Duty Cycle Needs

• Calculate the maximum load you'll lift, including any future increases. Don't underestimate.
• Consider how often the hoist will be used daily (duty cycle) and the number of start-stop operations per hour. This affects the hoist's duty rating and durability.

Evaluate Installation Site Constraints

• Measure available headroom and decide if you need a low-headroom or standard design.
• Check the runway beam size and the crane or trolley type it will integrate with.
• Assess any spatial limits like end approach or obstructions that could affect hoist movement.

Confirm Power and Control System Compatibility

• Ensure the hoist supports your available power supply voltage and frequency.
• Choose between control options like pendant, radio remote, or cabin control based on operator preference and safety.

Consider Future Expansion and Upgrade Options

• Think about potential future capacity increases or additional lifting needs.
• Opt for modular designs that allow easy upgrades or part replacements.
• Check if the supplier offers customizable options tailored to evolving operational demands.

Using this checklist helps you pick a flameproof hoist that fits your current needs and adapts to future challenges, ensuring safe, reliable performance in hazardous environments.

Why Choose Flameproof Wire Rope Hoists?

When it comes to flameproof wire rope hoists, the right choice can make all the difference. Here's why selecting a trusted manufacturer matters:

Manufacturing Expertise and Plant Capabilities

• Built in advanced, large-scale factories equipped with modern machinery.
• Strict production processes ensure consistent quality and durability.
• Experienced engineers design hoists specifically for hazardous environments.

Certifications and Quality Assurance

• Hoists come with recognized certifications like ATEX, IECEx, and CE.
• Each unit undergoes thorough inspections and third-party testing to meet safety standards.
• Quality control checks cover every component—from motors to control systems.

Global Support and After-Sales Service Network

• Worldwide service centers provide fast, reliable maintenance and spare parts.
• Technical support teams help with installation, troubleshooting, and training.
• Warranty programs and regular follow-ups ensure long-term satisfaction.

Customization and Customer-Centric Approach

• Solutions tailored to your specific site, industry, and lifting needs.
• Flexible options for capacity, control systems, and special features.
• Open communication and expert advice throughout the purchasing process.

Choosing a trusted supplier means you get more than just equipment—you get peace of mind, safety, and performance designed to keep your operations running smoothly in explosive atmospheres.

Frequently Asked Questions (FAQs)

What are the typical lead times and delivery schedules?: Lead times usually range from 4 to 8 weeks depending on the model and customization. We work hard to meet your project timelines and keep you updated throughout the process.

Can certification be transferred or recognized in different regions?: Yes, our hoists come with internationally recognized certifications like ATEX and IECEx. Documentation can be provided to support local certification and regulatory compliance.

Are spare parts readily available?: Absolutely. We maintain a robust inventory of spare parts to ensure quick replacements and minimize downtime. Our global service centers also assist with parts supply.

What warranty terms apply?: Standard warranties cover manufacturing defects for 12 months from delivery. Extended warranty options are available upon request.

How do different flameproof standards compare?

• ATEX and IECEx are widely accepted international standards.
• GB/T standards apply specifically in China but align closely with IEC norms.
• All ensure safety but differ slightly in testing and certification processes.

Appendix:
Explosive-proof grade
There are two types of electrical equipments using in prescribed conditions will not cause an explosive burning environment:
Type I: electric equipment in underground coal mine
Type II: all others explosive environment using electric equipment except underground coal mine
Type II can be divided into IIA/ IIB/ IIC.

Applicable scope and working conditions: This crane is used in ambient temperature of -25℃～+40℃，humidity≤85%，elevation under 1000m，power supply is 3-ph, 380V,50HZ (can change as user demand).