LXB type explosion-proof electric single-girder underslung crane

The Weihua LXB type explosion-proof electric single-girder crane is a lifting device specifically designed for explosive gas atmospheres, widely used in flammable and explosive locations such as chemical plants, petroleum facilities, and gas stations.

Specifications

Lifting capacity: 1t – 20t
Span: 7.5m – 28.5m
Lifting height: 6m – 30m
Explosion-proof rating: ExdⅡBT4, ExdⅡCT4

Introduction
Application Cases
Brand Advantages
Related Products
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Introduction

Weihua LXB Explosion-Proof Electric Single Girder Crane is a light and small lifting equipment specially designed for environments with explosive gases.

Core Positioning: It is designed and manufactured based on the LX型 Electric Single Girder Underslung Crane, strictly following explosion-proof standards such as GB3836.1-2000 “Electrical Apparatus for Explosive Gas Atmospheres – Part 1: General Requirements” and GB3836.2-2000 “Electrical Apparatus for Explosive Gas Atmospheres – Part 2: Flameproof Enclosures “d””. The entire crane possesses reliable explosion-proof characteristics.
Design Features: This crane features reasonable structure, attractive appearance, and strong explosion-proof performance. The operating speed of each mechanism is typically controlled within 20 m/min, which helps reduce potential risks associated with high-speed operation.
Typical Configuration: It is often used in conjunction with HB(BCD), HBS(BMD) type explosion-proof electric hoists. The main control method is ground control (wired or remote control).

Structural Composition

Weihua LXB type explosion-proof crane mainly consists of the following parts:

Bridge Structure: 1. Main Girder and End Carriage: The structure of its main load-bearing components (such as the main girder and end carriage) is basically consistent with the LX型 Electric Single Girder Underslung Crane, meeting basic load-bearing and operational requirements. 2. Track System: The crane operates on I-beam tracks, suitable for suspended installation.
Explosion-Proof Electrical System (Core Difference): 1. Overall Explosion-Proof Design: This is the core of the LXB type. All electrical equipment, including the power supply system for the crane, adopts an explosion-proof design. 2. Crane Power Supply: The crane power often uses soft cable power supply. 3. Explosion-Proof Hoist: The hoisting mechanism is equipped with a specialized explosion-proof electric hoist.
Explosion-Proof Travel Mechanism: 1. Explosion-Proof Motor: The crane travel, trolley travel, and hoisting mechanisms all use explosion-proof motors. 2. Explosion-Proof Wheels: The tread and flanges of the wheels are typically made of stainless steel or other non-sparking materials to prevent sparks from friction and impact. 3. Explosion-Proof Accessories: Components such as the rollers on the cable trolley and the striker of the limit switch are often made of copper alloy or other materials that are not prone to sparking and can dissipate static electricity.

Advantages & Features

The advantages of Weihua LXB Explosion-Proof Electric Single Girder Crane are mainly reflected in the following aspects:

Explosion-Proof Safety, Reliable Assurance

1. Overall Explosion-Proof Design: From electrical equipment to mechanical components, the explosion-proof requirements are fully considered to ensure safe use in specific hazardous environments. 2. Clear Explosion-Proof Class: Its explosion-proof class is typically ExdⅡBT4 or ExdⅡCT4, suitable for corresponding levels of explosive gas environments. 3. Mechanical Explosion-Proof Measures: Further risk reduction through mechanical design such as controlling operating line speeds, using non-sparking wheels, and copper alloy parts.

Compact Structure, Strong Applicability

1. As a single girder underslung crane, it features a compact structure, helping to save space. 2. Flexible installation with relatively low requirements for plant space.

Convenient Operation, Easy Maintenance

1. Mainly uses ground control (wired or remote), which is convenient to operate and keeps operators away from the lifted load, aligning with safety trends. 2. Based on the成熟 LX product series, maintenance is relatively simple.

Specifications

Lifting Capacity		1-20t
Explosion-Proof Mark		ExdIBT4/ExdIICT4
Working Class		A3
Power Supply		3- Phase A.c. 380V 50HZ
Crane Travel Mechanism	Travel Speed	20 m/min
	Power	0.8KWx2 1.5KWx2 2.2KWx2
Wheel Diameter		250,270,400
Recommended Rail		P18,P24,P30,P38,P43

Applications

Weihua LB explosion-proof electric single girder crane is widely used in the following environments with flammable and explosive gases, dust, or mixtures:

Chemical Industry: Chemical plants, warehouses, stockyards, etc.
Petroleum, Natural Gas: Extraction, refining, natural gas processing and storage/transportation sites.
Other Explosive Environments: Places with combustible dust such as flour mills, cement plants, etc.

Application Cases

Nanjing Gaochi New Chinese-Style Bridge Crane

Guangxi Construction Machinery Fully Automatic Crane Electromagnetic Beam Bridge Double Girder Crane

Hirayama Keiyo Steel Project

Four-beam Six-track P41 Upper Left

600-ton double-girder gantry crane manufactured for Yitai Xinjiang Energy

Brand Advantages

Strong capabilities

A leading enterprise in China's crane industry, with an annual production capacity exceeding 100,000 sets of lifting equipment. Its smart factory ranks among the industry's top in scale and production capacity. In 2023, order volume surpassed 4 billion yuan, with its market coverage and delivery capabilities widely recognized.

Rich experience

With over six decades of deep expertise in the lifting equipment sector, our service network spans more than 170 countries worldwide. Having completed over 500,000 projects across diverse complex industrial scenarios, we have accumulated extensive application experience and solutions.

Qualifications and Honors

The company operates a National-level Enterprise Technology Center and holds over 1,800 authorized patents. It has received 135 provincial-level and higher science and technology awards, led or participated in the formulation of multiple international/national standards, and earned certifications including the National Manufacturing Single Champion title.

Quality Assurance

Strictly implementing the ISO international quality system, with automation rates exceeding 95% in critical processes. Pioneering the “New Chinese-style” structural optimization technology, significantly reducing equipment weight and energy consumption. Rigorous quality control throughout the entire production process ensures safety and reliability.

Technological Innovation

Annual R&D investment accounts for 4%-6% of revenue, with an academician-led technical team of over 1,200 members. Breakthroughs in key bottlenecks such as millimeter-level anti-sway technology (≤2mm) continuously drive the iteration of intelligent, lightweight, and low-carbon technologies.

After-sales Service

With over 300 service centers worldwide, we guarantee 24-hour rapid response. Equipped with the “Crane Butler” intelligent operation and maintenance system, we provide remote diagnostics and preventive maintenance, ensuring full lifecycle service support for your operations.

LXB type explosion-proof electric single-girder underslung crane

Structural Composition

Advantages & Features

Specifications

Applications

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