How to Select Right Electric Chain Hoist? Electric Chain Hoist Guide
Electrical Chain Hoists are a must-have in any factory. Electric chain hoists are ideal for vertical lifts since they are simple to use and run. As a result, they are a desirable option for business owners.
Choosing the correct hoist for your purposes, on the other hand, is not so simple. A great variety of items are currently available on the market, many of which are poor. With so many manufacturers vying for first place, deciding on the best one might be challenging.
To ensure not to make a mistake, we've put together this comprehensive guide to selecting electric chain hoists. You won't have any trouble figuring out which product you need to buy after reading the information below.But first, let's define an Electric Chain Hoist.
What is an Electric Chain Hoists?
Simply put, an electric chain hoist is a device that is used to lift and lower materials vertically. The hoist is made up of an electric motor with a brake, a gearbox, a load chain wheel, and a controller that govern the system's motions. Alloy Steel Chain is employed as the lifting element.These hoists are perfect for use in factories and machine shops where objects must be lifted and loaded quickly.
Hook suspention , Motorized trolley, Manual trolley , Low headroom electric chain hoists
How to select an electric chain hoists ?
One of the most important requirements for a safe and efficient workshop environment is the selection of the appropriate chain hoist. The following are some of the most important considerations to make when selecting the proper product.Factors to consider when choosing Electric Chain Hoists are as following list:
The Weight of the load
This is the first and most important factor that you need to consider when choosing electric chain hoists. The load that you'll be lifting will determine the type of hoist that you need to buy. As a general rule of thumb, for less than ten tons of lifting capacity, a chain hoist is preferred. However, for lifting greater weights, an electrical wire hoist is suitable. But this doesn't hold with high lifting height. So, depending on your industry needs and requirements, the choice of hoists will vary.
Application Requirement
After determining the load type, you must select the application for which the hoist will be used. Is it something you're planning to employ for product assembly? If this is the case, high precision will be required. It's also crucial to know if you're employing any devices below the hook. What are your duty cycles, for example?
Lifting Speed
The lifting speed must be precisely adjusted for proper loading and unloading of the materials being lifted.
The Work Environment
The environment in which your hoist will be operated is perhaps more significant than the lift speed. Factory conditions may be harsh on gear, so it's critical to understand how the workplace will affect your equipment. 4.Gearbox leaking and subsequent hoist faults may occur if the hoist is used in extremely high-temperature situations, for example. Shallow temperatures, likewise, can cause cracks to form or internal components to freeze. The operation of your hoist can also be harmed if you place it in an environment with excessive temperature swings. Electrical short circuits and associated equipment malfunction can occur as a result of frequent temperature changes.
The Duty Cycle
This refers to the length of time your hoist will be in operation. The amount of hours that the hoist will run at a time can have an impact on its longevity. Because electrical hoists must disperse heat from their motors, the duty cycle must be long. This means they'll need plenty of time to cool off and recover. Otherwise, you may be courting equipment breakdowns.
The Height Of The Lift
The height to which you need to lift the load is also a consideration when selecting a hoist. Electric chain hoists usually have a container where the extra chain is spooled. The longer the chain, the greater the height, and hence the larger the chain container. A too-large container, if not designed appropriately, could become a barrier to the weight being hoisted. For higher lifting heights, such as windmill hoists for turbine maintenance, an electric chain hoist is preferred.
The Power Source
The type of hoist you need will also dictate the type of power supply you'll need. A single phase hoist is sufficient for low duty cycle applications. If you require exceptionally high duty cycles, however, a three-phase hoist is the best option. This will ensure that you have enough power to operate the machine.
Warranty
An electrical hoist is one of the machines that goes through normal wear and tear. As a result, if you want to prevent costly repairs, you should get a device with appealing warranty benefits. Check to see if the hoist's warranty covers all necessary parts and labor. Labor is usually more expensive than parts, so it's better if your warranty covers both.
Safety Features
An electric hoist is, at the end of the day, a machine. Accidents can happen in any scenario where electrical equipment is employed. As a result, check sure the hoist has all necessary safety measures, such as load limiters, before purchasing it. Self-adjusting brakes and thermal overload protection are also necessary.
Electric Chain Hoist Delivery
Your chain hoist order will be confirmed by email once placed online or over the phone, and your hoist will be chained up, tested, certified, packed, and sent between 12-48 hours. Standardised hoists are delivered in 2-3 working days after the order is placed (unless otherwise advised). Due to transportation times, international delivery dates may vary. Specialist hoists can be made to order, resulting in longer lead times of up to 12 weeks in some circumstances. We have a large number of manufacturers with whom we collaborate closely, and we will always do our utmost to meet your delivery schedules.
Service and Maintenance of Your Hoist
We take pleasure in our after-service service. Not only do we look after you while you make your first purchase with us, but once you've joined the LES family, we go above and beyond. We provide a comprehensive maintenance package that meets all LOLER and PUWER requirements. We work with a wide number of manufacturers, and LES can handle warranty claims and out-of-warranty repairs for them, saving you time and money while dealing with your specialized LES customer care agent.
Suspension type selection
How do you choose the type of suspension for your electric chain hoists? After that, we'll talk about how the chain hoist will be suspended. Hook mount and Lug mount are the two most frequent ways to suspend or hang a chain hoist. The chain hoist will come from the factory with a hook connected to the top of the body if you choose Hook mount.
- This hook will be tucked into a slot on the trolley, which is a rolling contraption that rests on the Beam (explained in greater detail below). Rigid and swivel hooks are the two most prevalent types of hooksThe rigid hook is exactly what it sounds like: it doesn't swivel, therefore the chain hoist can't rotate 360 degrees on the trolley like a "swivel" hook can.
- The swivel hook does exactly what it says, allowing the chain hoist to rotate clockwise or counterclockwise while in use.
- The Lug suspension option comes next. A lug suspension is available on practically all chain hoists, and it comes in handy when mounting and operating the hoist requires a lot of headroom. A lug suspension eliminates the hook mentioned earlier and allows the hoist to be mounted to the trolley with just a few bolts/lugs.
Trolley type selection
How do you choose the right trolley for your electric chain hoists? When it comes to choosing a trolley, there are a few possibilities, but first let's explain what a trolley is. A trolley is a device that rests on and rolls along the Beam where your chain hoist will work. Trolleys come in three different types, which we'll go over in detail below.
- Plain Trolley: A plain trolley, often known as a push/pull trolley, is the most basic type of trolley available. As previously stated, the hoist will be attached to this trolley by a hook or lug mount. The chain hoist will be moved along the Beam by human power via the hoist operator on a simple trolley. The operator will hold either the hook or the item to be lifted and pull or push it along the Beam in the desired direction.
- A geared trolley is the next step up in terms of ergonomics. Instead of using human push/pull power, the chain hoist operator will pull on a chain hanging from the trolley (much like a manual overhead door operator), and the trolley will utilize its gears to roll the trolley wheels along the Beam, as we mentioned with the plain trolley. When ordering a geared trolley, the hand chain drop must be specified. Similar to the pendant station or push button drop we covered earlier, the standard hand chain drop is 4′ less than the lift.
- Motorized Trolley: Of all the choices we've discussed, the motorized trolley is the most ergonomic. This option is exactly what it sounds like; instead of a standard push/pull or manual geared trolley, this trolley will have a motor mounted to the side of the wheels. A motorized trolley can have its own control pendant, which can be hung from the beam near the chain hoist pendant.
Motorized trolley for electric chain hoist
Manual trolley for electric chain hoist
Geared trolley for electric chain hoist
Another alternative is to have a qualified installer wire the trolley into the chain hoist and bring the controls down to the same pendant control as the chain hoist, putting all controls on one push button station and making the operator environment more efficient and ergonomic. When ordering a motorized trolley, you must specify the trolley speed. Contact us immediately to discover a safe trolley speed for your lifting application.
Beams of electric chain hoist
How do you choose the type of beam for your electric chain hoists? We can hang a hoist from one of three different types of beams. It is critical to correctly identify your beam type in order to ensure that your chosen trolley will run and roll properly.
- I-Beam: An I-beam is a beam having an I- or H-shaped cross-section, also known as an H-beam, W-beam, or WF-beam (for "wide flange"). Flanges are the horizontal elements of the "I," while the web is the vertical part. The web resists shear stresses, whereas the flanges resist the majority of the beam's bending moment. The I-shaped section is a very efficient form for carrying both bending and shear stresses in the plane of the web, according to beam theory.
- Wide-Flange Beam (WF-Beam): Also known as a WF-Beam. The most frequent I-beam encountered in applications is the beam. Unlike the "S" style beam, which has a tapering flange, a Wide-Flange beam has flanges with almost parallel surfaces.
Checking list of electric chain hoists
Questions to consider for choosing a suitable electric chain hoist
- Required capacity
- Lifting height
- Ambient conditions:
- Normal Humidity
- Dust
- Dirt
- Particular temperatures °C
- Increased rel. humidity %
- Other
- How long is the hoist in operation:
- Load cycles per hour
- Hours per day
- Days per week
- Distance covered per lifting cycle
- Unusual operating conditions that could be important for the choice and function of the electric chain hoist
- Type of load:
- Permanent
- Changing
- Shocks
- Vibration
- Static
- Trolley drive
- Motor
- Manual
- Operating voltage:
- 400 V
- 230 V
- 3 - phase a.c.
- 1-phase a.c.
- Power frequency:
- 50 Hz
- 60 Hz
- Protection
- IP 54
- Other
12 benefits for you to select our Electric Chain Hoist.
Why to choose us as your Electric Chain Hoist Manufacturer?
Electric chain hoists are equipment that are used for regular, large lifting tasks when manual hoists are unable to accommodate the load size. Our chain hoists are capable of lifting weights of up to 50 tons. For loads heavier than this, a Double Girder Crane is utilized, which can lift up to 250 tonnes of weight. There are numerous advantages to choose our Electric Chain Hoist over those made by other companies. The Series Electric chain hoist also assists in making lifting procedures safer and more efficient.
Original guide chain
An vital component of the electric chain hoist, the original guide chain is designed to allow the load chain to freely lift and fall the loaded material.
Advanced suction rotary motor brake
When there is no or insufficient power supply, the suction rotary motor brake, which is constructed of non-asbestos material, can accurately and efficaciously stop the hoist from running. In general, only an alternative or direct current brake can halt the braking work while the power is off and the hoisting work when the power is on, preventing the load from falling due to the motor's closed circuit.
High-frequency motor with cooling fan
A high-frequency motor with a cooling fan improves both short-term and repeated rating. Aside from that, the usage of a class F insulation motor enables for high-frequency operation. In a high-frequency motor, a cooling fan is required since it keeps the motor cool and allows it to work better than ever. This is another crucial component of a machine like an electric chain hoist.
Low-noise transmission gear
Electric chain hoists, in general, are massive devices that, if they don't have a noise gear, cause unwanted noise pollution. As a result, precision spiral gears made of an intense alloy are drenched in machine oil. This allows the electric chain hoist to operate quietly for a longer period of time. Because there are tight laws against noise and pollution, the operating corporation will not face any legal issues.
Upper limit switch
An upper limit switch is a type of switch that is effective in preventing products from being lifted. If there is any overloaded material or items, the switch activates and the functioning hoist is stopped. This serves as a safety precaution as well as assisting the operator in gaining confidence in the machine's operation. For a big load lifting equipment, such switches are required.
Exceptionally long-lasting chain bag
The canvas chain bag included with the electric chain hoist is exceptionally long-lasting. One of the machine's most important and powerful aspects is the chain bag's durability. You can keep your mind clear while it is being repaired or replaced.
Intensive aluminium case
The intensive aluminium case, which is originally formed, is light in nature and has a striking appearance that is sure to catch one's attention.
Special Overroll Protection Device
The newly designed device, which includes a friction clutch drenched in oil, helps prevent the machine from becoming overloaded or rolling up excessively. Because it is easy to control, a specific advanced machine is utilized for such applications. Overloading or severe rolling can make a lifting process dangerous, resulting in the loss of both people and resources.
Easily examined and maintained
The control lid is permanent, and the hinge is suitable for maintenance or spot inspection. The electric switch groups are all mounted on the same circuit board. As a result, utilizing switches becomes simple and convenient, and one can rapidly grasp the machine's operation technique.
Emergency stop button: In the event of an emergency, operators can use the emergency stop button to turn off the power. It will quickly cut off the machine's power supply, altering the odds of complications.
Durable buttons
The buttons are simple to use since they are designed to manage low voltage and provide security. IP65 is the protection level.
Bottom hook
It's full-strength hot forging that's difficult to break. The bottom hook's operating safety is ensured by its 360-degree rotation mechanism and safety tongue piece.
An electric chain hoist is a powerful machine that can securely and conveniently raise huge items. Using a branded product can help you save time, money, and resources by speeding up your lifting procedures.
Hoist shell for electric chain hoist
Motor parts for electric chain hoist
Motorized trolley for electric chain hoist
Chains for electric chain hoist
Chain bag for electric chain hoist
Crane hook for electric chain hoist
Electrics for electric chain hoist
Limit switch for electric chain hoist
Conclusion
Choosing the best electric chain hoist is a difficult task. However, with a little research, you may readily determine which one is required for your application. You can choose the electric chain hoist you need by considering the variables listed above. When making a purchase, you should not rush and instead take your time to choose the one that will provide you with the highest return on investment. You can also get the expertise of an expert to make the decision for you if you need it.
Article by Bella ，who has been in the hoist and crane field since 2016. Bella provides overhead crane & gantry crane consultation services for clients who need a customized overhead travelling crane solution.Contact her to get free consultation.
