Pickling Overhead Cranes: For Acid Mist Environments in Non-ferrous Metal Smelting

Pickling overhead cranes are dedicated overhead lifting equipment designed for highly corrosive working conditions in galvanizing and related surface treatment processes. They are mainly used in pretreatment procedures such as steel pickling.

The equipment is integrally designed in response to the operating environment characterized by acid mist, high humidity and corrosive media, enabling stable and safe material handling under harsh working conditions and effectively extending the service life of the equipment.

The hoisting mechanism adopts special electric hoists for pickling, which feature advanced technology, high safety and reliability, as well as energy conservation and environmental protection. The crane travel mechanism adopts separately driven three-in-one driving devices, and the control system adopts variable frequency speed regulation technology.

These designs meet the comprehensive requirements of galvanizing production lines for reliability, smooth operation and production efficiency, making pickling overhead cranes important lifting equipment for pickling processes in the galvanizing industry.

Technical Parameters of Pickling Electric Single-Girder Cranes

• Rated Lifting Capacity: 3t ~ 20t
• Span: 3m ~ 30m
• Lifting Height: 6m ~ 18m
• Lifting Speed: 1.35m/min ~ 13.5m/min
• Travel Speed: 3m/min ~ 30m/min, 4m/min ~ 40m/min
• Duty Class: A5 ~ A6

Features of Pickling Overhead Cranes

• High Corrosion Resistance: Equipped with special pickling electric hoists; the whole crane is acid-resistant. Key parts adopt stainless steel, engineering plastic or special coating, with core components sealed to IP65/IP67 against acid mist.
• High Protection Grade: Anti-corrosive painting for hoists, electrical parts rated above IP65, fully enclosed control cabinet. Explosion-proof configuration (Ex d IIC T4) is optional for flammable and explosive environments.
• Heat Insulation: Fitted with thermal insulation layers to block heat radiation in corrosive gas and acid mist environments.
• Stable & Safe Lifting: Anti-swing design and variable frequency speed control ensure smooth lifting and positioning; dual brakes for emergency stop and automatic power-off protection against overload.
• High Efficiency & Duty Class: Optimized for hot-dip galvanizing, with fast lifting and traveling speed; overall duty class A6.
• Smooth & Precise Operation: Four-rope design delivers excellent stability for steady loading and unloading.
• Compact & Durable Structure: Compact layout, reliable performance, smooth operation and long service life.
• Customizable: Lifting capacity 0.5–20t (customizable), various models available.
• Easy Maintenance & Cleaning: Modular design for quick component replacement; smooth surface to avoid acid residue and corrosion.

Application Scenarios of Pickling Electric Overhead Cranes

• Pickling Workshops: Used for hoisting in pickling tanks during metal surface treatment (e.g., steel, stainless steel).
• Electroplating Workshops: Used for transporting workpieces into pickling tanks in galvanizing workshops, resistant to plating solution corrosion.
• Chemical Industry: Used for material loading and unloading in acid–alkali storage areas and around reaction kettles.
• Wastewater Treatment Plants: Hoisting pumps, valves, pipelines and other heavy equipment in corrosive environments.

KUANGSHANCRANE Service Support: Customization & Selection Guide

Pickling electric single-girder overhead cranes are generally non-standard customized equipment. The following factors shall be comprehensively considered in model selection:

• Pickling process flow and tank layout
• Corrosion level of the operating environment
• Lifting capacity, span and lifting height
• Working frequency and required duty class

With years of experience in non-standard customization, KUANGSHANCRANE can provide professional selection suggestions and customized solutions based on actual working conditions to ensure safe, stable and long-term operation of the equipment.

For any inquiries, please contact KUANGSHANCRANE for professional service.

KUANGSHANCRANE Project Case: 3 Sets of Cranes for Pickling Workshop Ordered by Customer

This project supplies 3 sets of heavy-duty electric double-girder overhead cranes for a pickling workshop. With a high working class of A7, 42-ton lifting capacity, 36.5m span and 11m lifting height, the cranes are specially designed to meet the heavy-load, high-frequency operating demands of the pickling line, ensuring stable and reliable performance in corrosive environments.

• Equipment Name: Electric Double-Girder Overhead Crane Installation
• Location / Application: Pickling Line Bay
• Working Class: A7
• Lifting Capacity: 42 t
• Span: 36.5 m
• Lifting Height: 11 m