• Mar 18, 2025
• News

Types of Explosion-Proof Bridge Cranes

Explosion-proof overhead cranes are available in single and double girder configurations and are designed for safe material handling in hazardous environments.

Explosion-proof bridge cranes are specially designed to handle hazardous environments where there is a risk of explosion due to the presence of flammable gases, dust, or vapors. These cranes are built with specific safety features to prevent ignition and ensure safe operation in these environments. There are different types of explosion-proof bridge cranes based on various applications and the level of protection required.

1. 1-20 ton Explosion-Proof Single Girder Overhead Cranes

A single girder explosion-proof overhead crane is suitable for lifting activities in hazardous situations with flammable gases, vapors, or dust. The structure consists of a single welded box or I-beam girder with an explosion-proof electric hoist underneath. All electrical components, including motors, wiring, and control panels, are fully enclosed and certified to satisfy explosion-proof standards (ATEX or IECEx). The design eliminates sparks, excessive heat, and static discharge during operation, making it ideal for petrochemical factories, grain processing facilities, and paint shops. The crane's compact design allows for efficient material handling in spaces with limited headroom or workspace.

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A single girder explosion-proof overhead crane is suitable for lifting activities in hazardous situations with flammable gases, vapors, or dust. The structure consists of a single welded box or I-beam girder with an explosion-proof electric hoist underneath. All electrical components, including motors, wiring, and control panels, are fully enclosed and certified to satisfy explosion-proof standards (ATEX or IECEx). The design eliminates sparks, excessive heat, and static discharge during operation, making it ideal for petrochemical factories, grain processing facilities, and paint shops. The crane's compact design allows for efficient material handling in spaces with limited headroom or workspace.

• Suitable for Lighter to Medium Loads: Explosion-proof single girder cranes are typically designed for lighter to medium lifting capacities, adequate for handling equipment components, materials, and tools within various plant sections. Moderate capacity explosion proof cranes are sufficient for many maintenance and light production tasks.
• Cost-Effective Solution: Explosion-proof single girder cranes are generally less expensive than double girder models, making them a budget-conscious choice for areas where heavy lifting is not the primary requirement. If you are on a budget and the lifting capacity meets your needs, this will fit the bill perfectly.
• Adaptable to Various Spans and Headroom: Explosion-proof single girder cranes can be customized with varying spans and headroom configurations to fit different building dimensions and workspace layouts within petrochemical plants. For some of the parameters, you can view the charts below or contact us to talk.

  Span	S(m)	7.5	10.5	13.5	16.5	19.5	22.5	25.5	28.5
  Lifting height	m	9	9	9	9	9	9	9	9
  Lifting speed	m/min	7	7	7	7	7	7	7	7
  Trolley speed	m/min	20	20	20	20	20	20	20	20
  Crane speed	m/min	20	20	20	20	20	20	20	20
  Lifting motor	kw	13	13	13	13	13	13	13	13
  Trolley motor	kw	0.8	0.8	0.8	0.8	0.8	0.8	0.8	0.8
  Total weight	t	3.26	3.76	4.4	5.17	5.92	7.48	9.71	14.05
  Max Wheel Load	KN	51.3	55.3	58.3	61.3	63.9	68.2	74.2	85.4
  Track		P24	P24	P24	P24	P24	P24	P24	P24
  Main dimension	mm	7.5	10.5	13.5	16.5	19.5	22.5	25.5	28.5
  Rail top to main top	H1	720	720	820	875	875	925	1100	1200
  Rail top to hook centre	H2	1850	1850	1850	1900	1940	2000	1920	1920
  Wheel base	W	2000	2000	2000	2500	2500	3000	3500	4000
  Crane width	B	2500	2500	2500	3000	3000	3500	4000	4700
  Hook left limitation	S1	1293	1293	1293	1293	1293	1293	1293	1293
  Hook right limitation	S2	1893	1893	1893	1893	1893	1893	1893	1893
  Main girder height	H3	900	900	1000	1100	1140	1250	1350	1450

2. Explosion-Proof Double Girder Overhead Cranes

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A double girder explosion‑proof crane uses a double‑girder structure, providing higher load capacity and wider spans compared to single‑girder models. All electrical components, including motors, wiring, and control systems, are housed in flame‑proof enclosures, and mechanical parts are made with spark‑resistant materials to prevent ignition. These cranes comply with explosion‑proof standards (such as ATEX or IECEx), making them suitable for petrochemical plants, gas facilities, mining, and grain processing operations where strict safety measures are required.

• heavy-duty Lifting Capacities: Explosion-proof double girder cranes are built for serious lifting jobs. They can handle very large equipment components such as reactors, pressure vessels, heat exchangers, and heavy steel structures. In petrochemical plants, many parts are oversized and extremely heavy, so you need a crane that offers high load capacity and stable performance. The double girder design increases strength and reduces deflection, which helps keep lifting smooth and controlled. If your project involves moving critical equipment during installation or shutdown maintenance, choosing a high-capacity explosion-proof crane ensures both safety and efficiency.
• Long Span Capabilities for Large Areas: These cranes can be engineered with long spans to cover wide workshop floors or large processing areas. In petrochemical facilities, equipment is often spread out across broad bays or storage zones. A long-span double girder crane allows you to move loads across the entire building without adding multiple lifting systems. This improves workflow and reduces overall equipment investment. When you plan your crane system, you should consider the building width, hook coverage, and lifting height. A properly designed long-span crane gives you full coverage and smooth movement throughout your facility.
• Robust and Durable Construction: Explosion-proof double girder cranes use heavy-duty steel structures and reinforced components. They are designed to run continuously under demanding duty cycles. Petrochemical environments can be harsh. You may deal with heat, humidity, corrosive substances, and round-the-clock operation. A strong structure helps the crane maintain accuracy and stability over time. High-quality welding, reliable explosion-proof motors, and protected electrical systems all play a key role in long service life.

Conclusion

Explosion-proof bridge cranes are specialized lifting equipment designed for hazardous environments, particularly in petrochemical plants, where the risk of explosion due to flammable gases, vapors, or dust is high. There are various types of explosion-proof bridge cranes designed for different lifting needs. Whether it's light loads, heavy loads or space-constrained applications, Yuantai has the right solution for you.