QY type insulated overhead crane

An insulated crane is a type of lifting equipment used in high-risk electric shock environments. It provides a critical safety barrier for both the equipment and operators through additional insulation design.

Specifications

Lifting capacity: 5~320t
Span: 10.5m~40m
Working class: A5-A8
Lifting height: 10m~24m

Introduction
Application Cases
Brand Advantages
Related Products
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Introduction

The QY insulated overhead crane is a type of lifting equipment designed for specific industrial environments requiring electrical insulation. It is primarily used in working conditions where electrical isolation is necessary. For example, in the production processes of electrolytic aluminum and calcium carbide, the insulated overhead crane plays a crucial role. Its main purpose is to prevent current from passing through the crane structure, thereby protecting equipment safety.

The QY insulated overhead crane consists of a robust bridge, crane travel mechanism, hoisting mechanism, electrical equipment, crane hook block, and insulation settings. For electrical insulation purposes, special insulating materials are used in the bridge sections. Insulating layers are installed between metal components to ensure current does not propagate through the bridge crane structure. The hoisting mechanism also requires insulation to guarantee safety when lifting live materials.

Weihua utilizes efficient insulation materials and technologies, such as ceramics and glass fiber reinforced plastic, for insulating components. Alternatively, we add insulating gaskets between metal contact surfaces to ensure electrical insulation performance between parts.

Advantages & Features

Insulation Design & Safety Assurance

Triple insulation system: Multiple insulation layers installed between the hook and trolley, trolley and bridge, and bridge and rail to block current paths. High-strength insulating materials: Key insulating components use high-strength insulating materials with strong resistance to electrical breakdown, capable of withstanding wear and impact from frequent lifting operations. Comprehensive safety protection: Equipped with multiple safety devices, such as overload limiters, to ensure operational safety.

High Performance & Reliability

Efficient anti-sway: Utilizes Weihua’s independently developed anti-sway technology for high lifting precision. Strong lifting capacity: The main girder uses a box-type structure and finite element analysis optimization to ensure structural strength. Stable and precise operation: Hoisting and travel mechanisms often use variable frequency speed control for smooth starting/braking and wide speed regulation.

Intelligent Control & Easy Maintenance

Intelligent control system: Optional intelligent control system enables automatic positioning, precise anti-sway, and can be upgraded for unmanned operation. Modular & easy maintenance: Adopts modular design with high component interchangeability, facilitating maintenance and replacement.

Energy Saving & Cost Performance

Lightweight design: Applies structural lightweight design, resulting in lower deadweight and height compared to traditional cranes. This helps reduce plant structure load and construction costs. Energy saving: Low comprehensive energy consumption helps enterprises save energy and reduce consumption.

Applications

Non-ferrous metal smelting: The insulated hook bridge crane is suitable for the smelting processes of non-ferrous metals such as aluminum, magnesium, lead, and zinc.
Electronics industry: Relevant workplaces such as semiconductor manufacturing workshops and electronic component production workshops.
Power industry: Safely moving and installing large transformers and other electrical equipment in environments with high voltage, such as power plants and substations.
Chemical industry: Suitable for electrolytic workshops and chemical material storage areas.
Other industrial fields: Any location with potential electrical safety hazards, such as material handling in certain machining operations or assembly lines.

Specifications

Product Name	QY Insulated Overhead Crane
Lifting Capacity	5, 10, 16, 16/3.2, 20/5, 32/5, 50/10t Customizable upon request
Span Range	7.5-35m
Lifting Height	10-18m
Working Class	A5/A6/A7/A8
Power Supply	220V, 380V, Customizable
Working Environment	-25℃ to 40℃

Application Cases

New Chinese-Style Crane Project Case

A 75-ton crane was supplied to the Hainan Satellite Launch Site.

A super-large gantry crane was specially designed and manufactured for Erzhong Group (Deyang).

Weihua New Explosion-Proof Electric Hoist

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.

QY type insulated overhead crane

Advantages & Features

Applications

Specifications

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