Wire rope hoists basics: Wire rope electric hoists types, selections, installations maintenance

Wire rope electric rope hoists basics helps you to find out how to select wire rope hoist, how to check the wire rope crane rope hoist before use, how to install and maintain your rope hoists, etc. As a wire rope hoist manufacturers and suppliers, Dongqi will help you to find the most suitable wire rope hoist design at cost-effective wire rope hoist price. Contact to get your wire rope hoist now by email to sales@cranesdq.com , WhatsApp/ WeChat: +86 150 3617 7583.

Basics of wire rope hoists

Wire rope hoists designs vary according to the types of wire rope hoists, and the basics of standard wire rope hoists are the same.

The proprietary series built, rope hoist unit would be selected from our extensive range of units which have a worldwide reputation for reliability, modern design, safety and the very latest Electric Wire Rope hoists manufacturing techniques.

• The modular design forms a very efficient, compact visually aesthetic unit.
• The rope hoist transmission train is a direct drive type with no coupling.
• The wire rope drum is mounted in maintenance free bearings located within the rope hoist bearer frame. The drum is accurately machine grooved to accommodate the rope hoisting wire rope in one layer. And is designed to leave a minimum of 3 (three) turns on the drum when maximum lift height is reached.
• A wire rope guide is provided to prevent slack wire rope  and to smoothly guide the wire rope  onto the drum.
• The wire rope is securely attached to the drum with 3 (three) wire rope  clips.
• The bottom hook block is of the safety type, having fully guarded deep grooved sheaves, running in sealed ball bearings. The hook is a forged steel single point “C” Type, mounted on a ball thrust race and fitted with a spring return safety catch.

The special non-rotating rope hoist wire rope  is manufactured from high strength galvanised steel, the standard construction is 6×36+SES with a minimum factor of safety of 5:1. Over-rope hoist/over-lower limit switches are provided located within the rope hoist control panel. The electromechanical overload devise prevents the accidental lifting of loads over the safe working load whilst still allowing lowering.
The Rope hoist & Travel drive motors with integral brake are totally enclosed, fan cooled, squirrel cage induction type, having class “F” insulation with “B” temperature rise, tropicalized and climate proof with a minimum electrical protection of IP55. The motors are specifically designed for crane applications for use in aggressive environments, without the need for anti-condensation heaters.

Standard wire rope hoists for sale - Dongqi electric hoists manufacturer and supplier

The heavy duty totally enclosed, fail safe, disc brakes are automatically and instantaneously applied when the power supply is interrupted. Brake linings are asbestos-free. Electrical control of the complete rope hoist would be from floor level via a heavy duty, weather proof pendant control station suspended from the rope hoist. Galvanised tension relief cables to prevent damage to the electrical connections support the pendant. Robust hold-to-run, control buttons, one for each crane function, provide positive operation of all motions. An Emergency stop Button is also provided.
A watertight control panel forms an integral part of the rope hoist and contains the complete control systems, comprising electrically and mechanically linked contactors for each rope hoist motion.
Main and control circuit fuses, control circuit transformer c/w the necessary protection devices to provide reduced operation of the control circuits. The contactors are AC 4 duty for high inching plugging duty.
A main current supply system would provide the power supply along the length of the runway. Consisting off a special galvanised ‘C’ type track systems with sealed ball bearing cable trolley’s carrying special flat Neoprene cables type NYNJ. All necessary fittings and supporting brackets to connect to the runway are provided. A high level terminal box would be provided at one end of the system, together with the necessary vertical cable, terminating in a low level, lockable Isolator switch, for mounting 1500 mm above grade, complete with a suitable gland to accept your incoming supply cable.
Prior to packing protected for transportation, the rope hoist would be assembled in our workshops fully inspected tested, according to our standard testing procedure, which would include full dimensional and functional tests of all rope hoist operations including limit switches.

Types of wire rope hoists

In China, there are many rope hoists manufactures who provide standard electric wire rope hoists all over the world.
The wire ropes, as a matter of fact, are flexible and composed of several steel or fiber wire, the quality of which are necessary to be measured. A sample wire rope specifications are of l6×37 or 6 x19, which indicates its number of standard x number of wires per stand. In China, there are a large number of firms, factories and companies which can offer the standard electric wire rope hoist with quality wire ropes.  

As a hoist manufacturer and supplier, Dongqi Hoist and Crane offers types of electric hoists for customers, mainly electric chain hoist and electric wire rope hoist, etc. Dongqi electric wire rope hoists offering includes single / double speed hoist, low headroom hoist, explosion proof hoist, safety hoist, etc. The hot electric wire rope hoists are presented for your referencef in the following:

Electric rope hoist is useful for heavy load lifting, and the electric rope hoist is a superior safe and favorable device, which offers the good investment for your business. Many electric rope hoist manufacturers in China provides many advantages for your workshops in terms of material handlings.

How to select an appropriate electric wire rope hoist?

A rope hoist is equipment which used for lifting loads from one place to another with the support of drum or lift-wheel having a wire rope  around it. The load is connected to rope hoist by means of lifting hook.
There are two types of rope hoists by means of power supplying.

• Manually operated rope hoist and
• Electric  wire rope hoist.

Electric  wire rope hoistis powered by an electric motor to make the work of lifting heavy goods easily. Moreover, it is quite safe and convenient. About 80% firms using electric  wire rope hoist instead of manual rope hoist because of its convenience. . Generally, A perfect standard should like 6*37 or 6*19 this indicates its number of standard*number of wires per stand. Today, we have abundance firms which offer the standard electric  wire rope hoists manufacturers in China.These types of rope hoists are beneficial for your business so, spending money on electric wire rope s is the best investment for your business.

Tips on wire rope hoists selections

• Before choosing a suitable rope hoist for your firm, it is advisable to evaluate its all features.
• While choosing a rope hoist, consider its quality, durability and other important elements.
• Cost is also an aspect while choosing a rope hoist, that is why analyze wire rope rly about different types of rope hoists available in the market
• Determine that rope hoists are able to lift heavy loads, requires in your business.

Features of electirc wire rope hoists

• It is convenient and weather proof
• It should be smooth to service electrical control system and additional chain for higher height lifting.
• There should rope hoisting gear box; motor as well as a break is one single compact unit to get rid of any adverse problems.

Benifits of electric wire rope hoists

• Superior quality and heavy duty wire rope hoists
• Easy as well as potent load handling
• Beneficial for crane modification and factory reconstruct
• DC Disk motor brake
• Heavy-duty fan excellent motors
• High-quality wire rope  for wear resistance
• Cost-effective price
• IP55 rated for outdoor purpose
• Flexible models, providing a wide range of choice as per exertion
• Comprehensive, compact design
• Easily available in the market
• Saves your time because it does a work in a short period, which takes hours to accomplish

Electric rope hoist installation tips

The length of each rope hoist wire rope should be noted which will be presented  on the installation lay out of the electric rope hoist . Count the number of wire ropes also is an effective way.

• The diameter of the wire rope also needs your attention. There will ideally be a crosshead data plate on the top of the car which should show the diameter of the rope. Alternatively that diameter can also be measured with the help of a calliper or micrometre.
• Other important factors include the stranding and construction of the wire rope. Stranding in this context considering the number of strands per wire rope and the number of wires per strand. For example if there is an 8 strand wire rope with 19 wires per strand then the wire has a 8 x 19 stranding.
• The wire rope hoists also differs when it comes to the lay. The lay of the wire rope can be right regular or even right Lang.
• Depending on the application of the electric rope hoist you may want to check the grade or tensile strength of the wire rope. The higher the strength of the wire rope, the higher the grade. High grade ones are often used on high rises. These may also be useful in high speed rope hoisting conditions.
• The breaking load can be found on the cross nameplate. The breaking load can range from several values; for e.g. it could be 6550 kg or 14500 pounds.

How to use an electric  wire rope hoist

Electric  wire rope hoistare composed of a electric motors, Gearboxes, Wire rope  drum with wire rope  guides, electric panel and large wire wire rope  connected to a hook.Electric  wire rope hoistsare used to carry large objects weighing between 500 Kgs and 20 tons in various conditions like severe heat while welding, over the burners and furnaces or in acidic atmosphere. Before purchasing and using a  wire rope hoist, you must get the requirement clear and place an order accordingly. Often you will need to be instructed and trained in the use of the  wire rope hoistby a rope hoist provider or by someone knowledgeable about rope hoist operations.Instructions

• Voltage Check: Check to make sure the voltage of the electric  wire rope hoist and the motor correspond with the voltage of the power supply you plan to use. Connect the rope hoist to the power supply only if the voltage will support it. Voltage is proportional to the speed of the rope hoist. Even in case of minor difference the speed obtained will be different than mentioned in the manual.
• Check the lubrication:Make sure the gearboxes are filled up to the mark by recommended oil i nrope hoist and the end carriages of theEOT Crane.
• Test buttons:Test your control switches before your electric rope hoist is carrying a load. Test your emergency stop button by pressing it, and making sure the wire rope hoistceases movement. You can release the emergency stop button by turning it to the left as shown over the switch.
• Tangling of wire wire rope :Lower the wire rope  all the way to make sure your wire rope  is not tangled by lowering or lifting it. If the wire rope  is tangled, make sure to untangle it.
• Test the limit Switches:This is a very important check that need to be done. Test the rope hoist limit switch, pressing the up button all the way. The limit switch should disconnect when the hook reaches the top of the rope hoist. Repeat the test by pressing the down button.
• Check Cross Travel Motion:Press the second set of arrows on your control switch to move the crane to the right or to the left. Check the cross travel limit switches working by taking the rope hoist to the extreme of the monorail or the Crane Bridge.
• Check the Crane Motion:Press the third set of arrows on your control switch to move the crane horizontally. Check the cross travel limit switches working by taking the crane to the extreme of the gantry rails.
• Trial run with the load:Press the down arrow in the first set of arrows on your control switch to lower the crane. When your hook has been attached to yourload, you can press the up arrow to lift the load. Use the second and third sets of arrows to direct the load to its destination.

Maintenance of Wire Rope hoists

• When transporting reels, it is best to do so by rolling on a flat surface. Alternatively it can also be lifted from a pipe in the reel center hole.
• When kept for storage purposes it is necessary to make sure that the wire rope hoist is protected from moisture, sunlight, and even dirt or dust.
• Special care is required while unreeling the wire rope hoist; in addition to which kinking or dragging the wire rope hoist over a shape edge that can damage it, should be avoided.
• It is advisable to make use of splices when installing the wire rope hoist. This will help prevent the wire rope hoists from rotating.

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If you want to know more about Dongqi Custom Hoist Projects, please contact us by email to sales@cranesdq.com, WhatsApp/ Wechat: +86 150 3617 7583, or just leave a message below. Dongqi's electric hoist engineer will contact you in 24 hours.