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Home > Intelligent Overhaed Crane > Heavy Duty Double Girder Rotation Telescopic Hanging Beam Magnetic Overhead Crane

Heavy Duty Double Girder Rotation Telescopic Hanging Beam Magnetic Overhead Crane

double girder magnetic overhead crane
Heavy Duty Double Girder Rotation Telescopic Hanging Beam Magnetic Overhead Crane (25+25)ton PLC Controlled Wireless Remote.webp
telescopic hanging beam crane
rotation hanging beam overhead crane
PLC controlled overhead crane
double girder magnetic overhead crane
Heavy Duty Double Girder Rotation Telescopic Hanging Beam Magnetic Overhead Crane (25+25)ton PLC Controlled Wireless Remote.webp
telescopic hanging beam crane
rotation hanging beam overhead crane
PLC controlled overhead crane
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CCC CE ABS BV CCS
Capacity:50tons (customizable)
Lifting Height:9.8-16m (customizable)
Voltage/Hertz:(customizable)
Brand Name: YUNTIAN
Place of Origin: Henan, China
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Introduction

Technical Data (General Version)

Application

Features

PRODUCT INTRODUCTION

The Heavy Duty Double Girder Rotation Telescopic Hanging Beam Magnetic Overhead Crane is a specialized intelligent lifting solution engineered for handling long, heavy, and oversized ferromagnetic materials such as steel plates, profiles, billets, and structural sections in steel mills, shipyards, and heavy fabrication facilities. Built on a robust double box-girder bridge structure with a (25+25)-ton combined lifting capacity, the crane features a rotating telescopic hanging beam equipped with electromagnetic lifting units. This configuration enables the crane to grip materials of varying lengths, rotate them horizontally for precise positioning, and handle loads that would be difficult or unsafe for standard hook or sling arrangements. Full PLC-based intelligent control and wireless remote operation provide smooth, automated material handling across all motions.

TECHNICAL DATA

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APPLICATION

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Building Material Shops
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Machinery Repair Shops
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Manufacturing Plant
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Construction works
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Energy & Mining
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Construction Works, Energy Mining

FEATURES

1
Double girder heavy-duty structure— Two parallel box-section main girders provide superior load distribution, bending resistance, and torsional stability under the combined 50-ton lifting capacity. This ensures safe, stable handling of long, unbalanced steel loads across wide spans.
2
Rotating telescopic hanging beam with electromagnetic lifters — The telescopic beam extends and retracts to match material length, while the rotation mechanism provides 360° horizontal slewing for precise angular positioning. Multiple electromagnetic pads distributed along the beam generate strong, uniform gripping force, enabling safe handling of steel plates, profiles, and billets without slings or manual rigging.
3
(25+25)-ton dual lifting configuration — Two independent hoisting mechanisms operate in synchronized tandem, providing balanced lifting of long loads and preventing material sag or distortion during transport. The dual system can also operate independently when handling shorter individual pieces.
4
PLC-based intelligent control system — The programmable logic controller manages all crane motions, coordinates the dual hoist synchronization, controls beam telescoping and rotation, monitors electromagnetic pad status, and executes automated positioning routines. Pre-programmed material handling cycles reduce operator workload and improve throughput consistency.
5
Wireless remote control operation — Full-function radio remote control allows the operator to manage all crane and electromagnetic lifter functions from a safe distance with an unobstructed view of the load and surrounding workspace, eliminating the need for a cabin or pendant cable.
6
Variable frequency drive (VFD) on all motions — Stepless speed regulation across long travel, cross travel, hoisting, beam rotation, and telescoping motions delivers shock-free acceleration and deceleration, precise load positioning, and reduced mechanical wear on drive components.

FAQ

Why is a combination of rotation and telescopic mechanisms necessary for hanging beam magnetic cranes?

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Steel distribution centers and rolling mills handle steel plates, rebar bundles, and profiles of vastly different dimensions and storage orientations. The dual mechanism solves two core logistics bottlenecks: Telescopic Extension (Length Adaptability): The hanging beam can hydraulically or mechanically extend/retract (e.g., from 6m to 18m or 24m). This ensures optimal magnet spacing for short billets as well as ultra-long flexible steel plates, preventing mid-plate bending or dangerous sagging. 360° / 270° Rotation (Orientation Flexibility): The upper trolley or lower hanging beam slewing drive allows operators to rotate loads horizontally to align with narrow storage bays, truck beds, or train flatcars, maximizing warehouse storage density.

How does the smart magnet system prevent long steel plates from bending or dropping during lifting?

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Handling long steel plates requires dynamic magnetic force distribution. Our telescopic hanging beam magnetic cranes feature specialized Multi-Zone Selective Magnet Control: Selective Zone Activation: Operators can selectively energize specific magnet groups based on the detected or selected plate length (e.g., activating only inner magnets for 6m plates, or all magnets for 18m plates). Variable Magnetic Excitation (Demag/Lift Control): Allows "single-plate peeling" (lifting one sheet at a time from a stack) by fine-tuning the voltage and flux density before applying full magnetic holding power for travel. Custom Magnet Pole Design: Electromagnets feature specialized pole geometry tailored for high-temperature slabs, bundled rebar, or thin sheet piles.

What safety systems protect against main power outages while lifting heavy steel plate bundles?

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A sudden drop of steel plates poses severe safety hazards. Yuntian magnetic overhead bridge cranes are engineered with redundant safety systems: Instantaneous UPS Battery Backup: In the event of a main power line failure, the automatic Uninterruptible Power Supply (UPS) switches on within milliseconds, maintaining 100% magnetic holding force for 15 to 30+ minutes. Audio-Visual Emergency Alarms: Triggers flashing beacons and high-decibel sirens to alert floor personnel while automatically locking the crane drives so the operator can safely lower the load. Secondary Mechanical Latching (Optional): Motorized safety arms or mechanical clamps can be integrated into the hanging beam for long-distance transport.

How does the telescopic hanging beam structure resist structural wear and sway during high-speed rotation?

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Frequent rotation and extension under multi-ton dynamic loads subject the crane trolley to severe torsional stress. We incorporate heavy-duty structural engineering: Slewing Bearing with Planetary Drives: The rotation mechanism utilizes an enclosed, heavy-duty internal-gear slewing ring driven by dual VFD motors for smooth, shock-free start/stop cycles. Hydraulic / Motorized Synchronized Telescoping: High-precision guide racks and heavy-duty hydraulic cylinders ensure both left and right beam extensions move in 100% millimeter-level synchronization, preventing binding or rail jamming. Heavy-Duty Box Girder Architecture (A7/A8 Rated): Main bridge girders are designed with high fatigue resistance for continuous 24/7 heavy mill duty cycles.

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Our products are mainly exported to South America, Southeast Asia,Africa, Russia, Turkey, Middle East countries and so on.
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PROFESSIONAL CRANE MANUFACTURER

We are a physical factory that has been engaged in lifting manufacturing for nearly 20 years. Committed to providing all customers with high-quality services and building a long-term future A long-term business cooperation relationship.
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