Important considerations to make when choosing a wire ...
Important considerations to make when choosing a wire ...
Wire rope hoists cover the bulk of industrial lifting needs, from 1-ton capacity on up to 80 tons—and beyond.
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Justyn Penfold, Industrial Crane Sales
Choosing the right wire rope hoist for your application requires a few important considerations:
Frequency of lifts you expect from the hoist.
The weight the hoist will routinely handle. Also factor in the occasional lifts made at your facility that exceed your standard day-to-day workload. To prevent overloads and equipment failure, buy a crane and wire rope hoist that is rated a bit higher than the heaviest loads that you expect.
Your future needs. A 5-ton hoist may be enough now. But do you foresee changes in your product line or processes that will require greater capacity in the next few years? Thinking ahead will save you the added expense of replacing a hoist.
The types of material and products that the hoist will lift. A basic wire rope hoist may be all you need for tough, solid loads like rugged steel pipes. But if your hoist will be lifting and lowering more sensitive items such as materials or assemblies in aerospace or nuclear industries, you may need a hoist equipped with sophisticated controls such as Konecranes Smart Features.
Wire rope hoist control features
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Wire rope hoist motors controlled by variable frequency drives (VFDs) facilitate precise, controlled movements that are required for handling more delicate items. And VFDs for bridge and trolley motions reduce load sway by gradually accelerating and decelerating travelling speed. Microspeed or inching speed controls also assist with precision lifts and sets of delicate loads.
Sway Control anticipates and corrects for the inertia that a load will experience when you let off the travel buttons, based on the weight of the load, how low it hangs from the hoist and the speed of trolley and bridge travel.
Another important feature to look for in wire rope hoists is Shock Load Prevention. This prevents shock loading, which damages wire ropes and the crane structure. Shock Load Prevention automatically slows the hoist when it senses that a lift is initiated too abruptly, particularly a heavy load or a load, such as a mold, that is breaking free from a mount.
For cranes with more than one wire rope hoist, Hoist Synchronization is a valuable feature that enables hoists to safely lift a large or long object in tandem.
The most sophisticated wire rope hoists are part of a closed-loop system in which the VFDs communicate directly with the hoist motor. In these systems the hoist can correct for issues involving the load, preventing a safety hazard or crane damage.
When are chain hoists the preferred option?
Wire rope hoists are the best solution for most applications. However, chain hoists are an economical alternative for lower capacity applications in workstations and shops, as well as in rough and tumble environments. The more enclosed bodies of chain hoists better protect against caustic chemicals as well as the elements in outdoor applications, including salt spray on oil platforms.
We have a full range of rope hoists to fit your lifting needs.
Wire Rope Hoist - Hoists
Wire rope Hoists
From general manufacturing, to tools and die plants, or steel foundries.These are just a few industries where a wire rope hoist is needed to lift and move heavy loads of tools, raw materials, or even finished products. In some cases, the hoist represents the lowest stress option for carrying the payload as well, so it can be just as useful for smoothly transporting fragile items as it is for lifting heavy ones. Wire rope hoist designs are typically chosen for delicate operations because the hoist motor's smooth action as it winds and unwinds the cable helps to minimize jarring motions that could put stress on the payload.
Choosing the Right Wire Rope Hoist Capacity
When choosing a hoist, whether it's a wire rope model or a chain hoist, the biggest consideration is the maximum payload capacity. It merely needs to be able to handle the job you're going to throw at it, so you need to do your research. If you're new to hoist purchasing, bring in the team most likely to be using it and assemble a list of use scenarios that take into account the range of payload weights your business will deal with. It's also important to consider whether expansion plans call for a heavier wire rope hoist to be needed soon. If so, it's a good idea to buy the upgraded model.
Additional Points To Consider
Apart from the maximum capacity, the other most important factors to the day to day operations are the rope lift speed and the specs for the motor, which will tell you how much power it will draw under normal operating conditions. Not only is your capacity is important but knowing your duty cycle is crucial to the longevity of your investment. More efficient models generally cost a little more, but the energy savings might be worth it in the long run. Similarly, a slower wire rope hoist is usually a little less expensive than one with a faster lift speed and the same weight rating. Keep these points in mind as you decide on the best model for your shop. Finally, take a look at how you're going to install the wire rope hoist, where it needs to reach, and what additional equipment you'll need to get the job done. That way, you get an accurate projection of your total costs for your new equipment purchase.
For more information, please visit Metallurgical Wire Rope Hoist.
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