Isolation Crane

Isolation Crane

Weihua Crane Machinery Co., Ltd.

Address:Industry Park, Changyuan, Henan, P.R.C


Isolation crane is designed based on double girder overhead crane; it is lifting machinery for loading and lifting goods under charged environment.
When the isolation crane works in a live environment, in order to prevent the current may be passed to the crane by hanging items, endangering the lives and safety of drivers. Therefore, set up three insulated devices in the three parts, they are in the hook and pulley, lifting mechanism and the trolley frame, trolley frame and crane.
Isolation crane is suitable for smelting aluminum, magnesium, lead, zinc and other electrolysis nonferrous metals plant, for material handling and lifting, equipment installation and maintenance. Working level is heavy duty system.
Isolation Crane

Weihua Crane is professional material handling equipment manufacturer and servicer with largest production in global. Provide you with overhead crane, gantry crane, electric hoist, etc. of safe, reliable and efficient crane solutions and services.


Isolation crane mainly consist of bridge, driver’s cabin, traveling mechanism, the trolley parts, electrical control system and other components. Adopt double-beam double-track and winch single trolley structure.
Isolation crane generally including three grades Insulations: Between trolley frame and crane, lifting mechanism and the trolley frame, hook and pulley. Setting up three insulated devices to meet three grades requirements. Epoxy phenolic glass cloth board has been mostly used as insulating material.
(The electrician use alkali-free glass cloth impregnated with epoxy phenolic resin by hot pressing formed into laminate, with high mechanical and dielectric properties, apply to insulating structural parts for motor and electrical equipment, and can be uses in wet conditions and transformer oil). The crane is mature and reliable, easy and smooth operation, advanced technology; it is a mature product of our company is for many years.
Isolation Crane
Bridge Frame
Bridge is the main force component of isolation crane, using the structure of double-beam and double-track, take the main beams and end beams as the main force pieces, supplemented by trolley tracks, walkway, railings, ladders and other ancillary metal structures.
Main beams and end beams are box-shaped structure made ​​of steel Q235 or Q345, minimum thickness of steel not less than 6mm. Main beam camber is (1 ~ 1.4) S / 1000, and the maximum camber position controlled within tenth of central span.
Trolley tracks lay on the bridge using one whole railway that joints welding as integration, to ensure the trolley running well. There set up insulating equipment between trolley track and trolley wheels to ensure that trolley and crane parts are insulating.
Driver’s Cabin
Driver’s cabin is workplace that operator manipulating the crane, using closed and tempered glass cabin. Its structure type design has taken into consideration not only the needs of a variety of functions: durable, safe and reliable, but also consider the good vision, comfortable and beautiful, indoor with an air conditioner, so the driver can work in good environment.
In order to ensure the operator with good vision, before the positive top, before the bottom of the side wall and rear wall of the cabin are fitted with tempered glass, driver in seat with maximum elevation from 55 ~ 60 °, the maximum angle from 70 ~ 75 °, the driver fixed maximum positive perspective is 120 °, rotating seat can up to 270 ° viewing angle of the front range.
Cabin frame are welded by rolled structural steel and stamped sheet steel, insulated rubber carpet laying on the floor surface. Inner and outer sides of the glass can be safely and easily wiped. The upper window frame and cabin frame are fixed.
Cabin also set alarms to ensure safe operation of the crane. Various settings arranged in cabin, which take full account of the driver easy maintenance and manipulation, unobstructed walking and activity space. Guaranteed under accident conditions, the driver can quickly and safely withdraw.
Isolation crane  traveling mechanism and hoisting mechanism
Crane Traveling Mechanism
Long traveling driving type of isolation crane: motor driving the reducer through coupling and driving shafts, gear connected with wheel shaft. When starting operation, driving wheel never slip, when braking, it is steady and reliable. This structural arrangement is conducive to all the parts installation, maintenance and removal of driving system.
Generally crane insulated cannot be done on the wheels, because of the need of the bridge frame to be as the ground wire.
Trolley Parts
Main and auxiliary hoisting mechanism of isolation crane arranged in the same trolley rack, each set up with separate driving device, main and auxiliary lifting mechanism not only can finish the lifting and handling independently, but also can be coordinated to complete the work of turning over object.
Hoisting mechanism operating principle: Motor acting through the gear shifting speed, and then driving drum through drum coupling, finish hook hoisting through wire rope winding system. Between lifting hook and pulley block, hoisting mechanism and trolley frame, both set up with insulating device, each agency including motor, reducer and pulley block set up with insulation plate. Hoisting mechanism uses dual braking.
Isolation crane trolley traveling mechanism and crane traveling mechanism adopt the same driving type.
Insulation Crane Electrical Control System
Isolation crane electrical operation control unit installed in the cabin, the other electrical components are generally installed on walkway stage or in electrical room. Motors, brakes and cables are anti-corrosion type, resistors using stainless steel, other electrical components are sealed and anti-corrosion.
Isolation crane power supply including three types: angle slide wire, safety slide wire and cable.
Angle slide wire: Mainly used for places with large total motor power, high-temperature, dusty and such bad environments;
Safety slide wire: It is the most widely used type currently; it is safe, beautiful and easy installation;
Cable type: it is mainly used for explosion-proof crane and can also be used for a variety of small and medium sized cranes. Trolley power supply is soft cable type, to avoid maintenance personnel electric shock risk, ensuring the personal safety.
Isolation Crane Safety Protection Device
Crane main hook with overload limiter, it has functions with weight display, overload alarm and automatic power off.
Each mechanism using normally closed electro-hydraulic brake, main lifting adopt dual brakes, safe and reliable.
In addition to overload limiter and braking device, the hoisting mechanism also installed with lifting limit switch, trolley traveling and crane traveling are both equipped with limit switches, the circuit provided with overcurrent protection, no-voltage protection, phase protection, zero protection, emergency switch, the main isolating switch, hatch door interlock switch, bells prompt and other safety devices to ensure the normal operation of cranes and related personnel personal safety. Isolation crane can be equipped with a few shock proof lamps under the bridge frame according to your needs; it is good for lifting operations.

Technical Data

Isolation crane sketchIsolation crane Technical Parameter

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Weihua Cranes Machinery Co., Ltd.

Weihua Crane standard
Weihua Cranes started since the year 1988; it is professional material handling equipment manufacturer and servicer with largest production all over the world. With Weihua Cranes historical influence, “China Crane Town” (which covers more than 2/3 crane market in China) developed in the area around Weihua Cranes headquarter.
Weihua Cranes main businesses are researching, developing, manufacturing and sales of all kinds of lifting equipment. We have passed the ISO9001 quality system certification, ISO14001 environmental management system certification, OHSAS18001 occupational health and safety management system certification, CE certification, etc.
Weihua Cranes advantages and differences with other crane manufacturers are that we have professional crane team to provide you with safe, reliable, efficient crane solutions and services, and as far as possible to reduce your cost. Crane your business, let’s develop together!


Excellent Product and Solutions

Weihua Cranes become one of general hoisting machinery manufacturing industry leader with the largest production and sales volume. We can provide electric hoists, single/double beam overhead cranes, gantry cranes, and such varieties of lifting equipment 10 serious more than 200 types. The lifting capacity of the overhead crane can achieve 1000t, and the gantry crane 900t, to meet all kinds of project need.
Cranes is committed to provide total optimized crane program solution and perfect service to help customer to save cost and improve efficiency.


Advanced R&D | Strong Q&C | Production capacity

Weihua Cranes has Technology Testing and Inspection Center authorized by the state, post-doctoral research station, obtains 283 technology patent certificates and inventions, R & D team of Weihua with 600 people and with Shu-zi Yang (academician from the Chinese Academy of Engineering) as the foregoer, is the biggest one in general purpose crane industry in China.
Cranes now adopted the “lean production management”, the undaunted testing and outstanding market performance, ensuring Weihua Cranes stand out as the leading brand within crane industry. Weihua Cranes continuously make the innovation on technical and strict on QC management to keep the products quality steady improving.

Weihua Cranes total asset is of 0.78 billion US Dollar, over 6000 employees, covers an area of 3.42 million square meters, one of Weihua Cranes workshop is the largest within the whole world crane industry. A varieties of 1700 sets manufacturing and testing equipment, including machining, heat treatment, welding, assembly, testing and packaging shipped metering and other ancillary equipment with a full range of advanced production scale and production capacity.

Outstanding Marketing Performance & Long-term Partner

Production and sales of overhead and gantry cranes won the first in China for continuous 8 years. And now, total production amount of Weihua Cranes products achieve world first. Weihua Cranes has developed strategic partnership with Siemens, GH Spain, Demag, SEW, Schneider, etc.

Weihua Cranes are widely used in machinery manufacturing, iron and steel metallurgy, nuclear industry of mining, water conservancy and hydropower, roads and railways, electric power, automobile manufacturing, petrochemical, port logistics, shipbuilding and other material handling, etc. We have successfully exported to more than 90 countries and regions such as the United States, Great Britain, Russia, India, Brazil, Peru, South Africa, Mongolia, South Korea, Australia, Southeast Asia, the Mid-East, etc. And get well reputation.
Weihua Cranes with strong capacity, focus on customer service, provide with first-class quality, safety and reliable products, create more and more value for customers, these are the reasons we set-up stable and long-term relationship with our customers.


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