EMH provides engineered crane hoists that perform as well or better than any crane hoists in the industry. We can even custom make crane hoists for your specific crane hoist needs.
It is hard to cut through the clutter of any purchase when you have options, let alone a specific need like crane hoists. EMH would be happy to sit down with you to discuss which crane hoist you need, and how EMH’s crane hoists can help. In the meantime, here are just a few of the reasons EMH’s crane hoists should at least be on your radar.
As EMH is a member of Crane Manufacturers Association of America (CMAA) and certified to ISO 9001:2008 standards, you can trust EMH’s crane hoists to meet national (and local) standard standards.
EMH engineered crane hoists include infinitely variable speed control of all motions. This means that these crane hoists’ start shock is minimized. Using these crane hoists allows lifting and lowering to be executed smoothly, safely, and precisely. These controls mean that our crane hoists will provide longer crane hoist motor life, greater productivity, and reduced brake wear.
Severe Demand Crane Hoist Motors
Our crane hoist motors meet the most exacting demands of crane hoisting service. These crane hoists are tough enough to handle frequent reversal and high torque of heavy-duty crane applications. EMH crane hoists’ inverter-duty motor is maintenance free, energy efficient, and built to last.
Crane Hoist Encoder
Any crane hoist worthy of your shop should be equipped with an encoder to provide real-time feedback from crane hoist motor to crane hoist inverter control. This provides smooth acceleration and deceleration and precision crane hoist handling.
DC Rectified Crane Hoist Disc Brakes
EMH long-lasting, durable crane hoists are equipped with DC rectified magnet actuated disc brake that automatically kicks in should you experience a power failure.
Crane Hoist Gear Box
EMH’s gear boxes within our crane hoists feature a unibody design that allows you to use them for numerous combinations of ratios, speeds and capacities. These gear boxes make our crane hoists smooth and quiet, adaptable for a wide range of applications.
Crane Hoist Gear Limit Switch
EMH’s standard crane hoists include one geared limit switch with one lower and two upper limits. These are easy to adjust as the switch brings the load hook halts at any position in both lifting and lowering directions. This safely eliminates slack cable, two-blocking, and unraveling with your crane hoists.
Crane Hoist Weight Operated Limit Switch
EMH’s crane hoist switches meet OSHA and CMAA requirements to protect the bottom block and enable you to load at the upper limit.
Crane Hoist Wire Rope and Drum
EMH’s crane hoist drum provides longer crane rope life while requiring less maintenance. The crane hoist drum is made from seamless steel tube with precision-machined grooves. EMH’s crane hoist wire rope is extremely strong and crush resistant.
Crane Hoist Trolley Drive
EMH’s crane hoists operate on a trolley drive within a heavy-duty, single-speed squirrel cage design.
Crane Hoist Wheels
The crane hoist wheels EMH provides are built for quiet use and long life with rolled or forged steel. These crane hoist wheels are designed unlike any crane hoist wheels in the industry.
A jib crane is a crane where the horizontal jib that supports a moveable hoist. EMH provides multiple types of jib cranes for your crane needs.
There are numerous kinds of job cranes, let’s break them down:
Wall-Mounted Jib Cranes
As this jib crane jets out from the wall, the rotation it provides is a little more than the 180 degrees you might expect. wall-mounted jib cranes rotate 200 degrees and require no floor footprint. These cranes store easily and are flexible in terms of capacity. Part of this jib crane capacity will (of course) depend on the strength of the wall itself the jib crane is mounted on.
Wall-Traveling Jib Cranes
Just like wall mounted jib cranes, wall-traveling jib cranes move on tracks from one side if the wall to another. This type of jib crane gives you additional location flexibility.
Freestanding Jib Cranes
Freestanding jib cranes give you flexibility as you can move these jib cranes all over your floor and even outside. EMH’s aluminum railing jib cranes are moveable. Typically freestanding jib cranes will give you more jib crane capacity with longer spans. And since these jib cranes are not on a wall, the rotation can be a full 360 degrees.
Mast-Style Jib Cranes
These jib cranes are mounted to the floor, which makes them both less flexible and less costly than freestanding jib cranes.
Workstation Jib Cranes
Workstation jib cranes are like mast-style jib cranes but they also offer a way to lift and transfer repetitive loads. Workstation jib cranes can be floor-mounted, portable, or wall-mounted.
EMH would love to sit don with you to discuss your jib crane options and which type of jib crane is best for you.
When it comes to overhead cranes, we’ve had a lot of discussions about the type (job, gantry, etc.) – today we are going to look into different classifications of overhead cranes. Luckily, like with most industries, we have an industry association, the Crane Manufacturers Association of America (CMAA). The CMAA classifies overhead cranes by starts per hour as well as the average percentage of lift capacity:
Class A overhead cranes are used for standby service. These class A overhead cranes are typically used for maintenance and/or installation installation as well as handling materials at slow speeds. Class A overhead cranes have long periods of time between use.
Class B overhead cranes are similar to Class A, only need to be durable enough to run at more frequent intervals.
Class C overhead cranes are those that are able to tackle loads that average 50 percent the rated capacity at a frequency of about 5 to 10 lifts at an average of 15 or so feet.
A tad more durable, Class D overhead cranes are for constant use lifting loads at about 50 percent of the overhead crane’s. These overhead cranes typically conduct 10 to 20 lifts per hour, again at 15 feet.
Class E and Class F cranes are used for strenuous needs. Overhead cranes that are Class E and F include top-riding bridge cranes, gantry cranes, etc. To be deemed a Class F overhead crane, the crane needs to have the capacity to handle loads that are near to their own lifting capacity a majority of the time they are used. So what’s the difference between E and F? Class F overhead cranes need to be running at almost all times.
EMH Cranes has a grane for every need – and we’d be happy to sit down just what “class” overhead crane is right for you.
Crane Hoists of Every Type, For Every Need
Crane hoists – there are so many different types of crane hoists, designed for numerous needs. EMH manufactured crane hoists are the “gold standard” for crane hoists in the industry and include a crane hoist for every need…
Wire Rope Crane Hoists
Wire rope crane hoists are versatile crane hoists with standard capacities of from 2 to 50 tons. EMH manufactures both single and double girder wire rope crane hoists for standard industrial applications. These crane hoists include two lifting and trolley speeds, two upper and one lower precision limit switches, overload limit, heavy duty wear resistant rope guide, DC rectified brakes, and lifetime lubricated bearings and gear reducers.
Engineered Crane Hoists
For crane hoists to serve “mission critical” Class D and Class E applications, EMH provides crane hoists with continuous, dependable operation. Our engineered crane hoists deliver a custom, modular, open winch design facilitates maintenance and repair. These crane hoists can be easily adapted for special lifts and speeds. These crane hoists operate well for capacities that range from 10 to 150 tons and all crane hoists motions are inverter-controlled for infinitely adjustable speed and prolonged motor life.
Wire Rope Crane Hoists for Hazardous Duty ngineered Crane Hoists
Crane Hoists that are specifically designed by EMH for hazardous duty are EMH Model E Monorail Hoists.
Jib Cranes Are a Necessity for Any Factory
EMH’s jib cranes, just as the industry’s jib cranes come are available in one of three jib crane configurations. One of the three main jib crane configurations can be used for nearly any jib crane need. The three jib crane configurations are..
- wall-mounted jib cranes
- floor-mounted jib cranes
- free-standing jib cranes
Floor Mounted Jib Cranes
There are numerous ways to floor-mount jib cranes, and EMH can assist with mounting to best fit your jib crane needs. Your floor-mounted jib crane will have an upright mast, a running beam or boom, and a concrete foundation to allow the jib crane to stand upright on a factory floor without any other support. With a concrete foundation, a jib crane can work anywhere without any other support. A floor-mounted jib crane typically has a range up to 25’ reach and five ton rated capacity.
Wall Mounted Jib Cranes
Wall-mounted jib cranes, either stationary jib cranes or wall-traveling jib cranes offer flexibility without a jib crane taking floor space. EMH’s wall-traveling jib cranes are normally used in conjunction with overhead bridge cranes for frequent movement of smaller loads. Wall traveling jib cranes free up the bridge crane for heavier duty lifts, providing better work flow.
Free Standing Jib Cranes
EMH’s fre-standing jib cranes are are the AL SYSTEMS™ ALUMINUM RAIL JIB CRANES. These are ideal in multiple applications, underneath bridge cranes, in areas serving several work stations, in outdoor applications such as loading docks, or in machining and assembly areas where multiple jib cranes can be overlapped to provide extensive coverage
AL Systems™ Pillar Style and Wall Mounted jibs are available in capacities from 250 lbs. to 1,000 lbs. with spans up to 15 feet..
Any factory can use a jib crane to help with effectiveness and efficiencies. The flexibility of configurations make jib cranes adaptable to almost any need, saving you money and timeWhether floor mounted job cranes or wall mounted jib cranes.
While there are numerous types of floor-mounted jib cranes, the most popular is a free-standing floor-mounted jib crane as it is constructed to stand on its own in the middle (or on the side) of your factory floor without reinforcements. A floor-mounted jib crane typically fas a reach of 25 feet.
While called wall-mounted jib cranes, most of these jib cranes are actually mounted to a steel column. A wall-mounted jib crane is often a tie-rod jib crane, where the tie-rod is mounted to the wall above the boom and tied at the far end of the boom to support the weight. The wall-mounted jib-crane can also be a wall-cantilever jib crane, whereas a beam is used without a lead supporting tie-rod. The tie-rod jib crane is typically chosen when maximum lifting height is not as critical as price.
When you are looking for an overhead crane there are obvious things to consider including the overhead crane’s lifting capacity, the space needed for the overheard crane, and the crane that’s right for your facility in terms of size.
- What are the safety considerations of the overhead crane and will the overhead crane increase safety?
- What am I doing with the overhead crane? How critical are the materials we’re moving?
- How can an overhead crane potentially increase our effectiveness?
- How frequently will the overhead crane be used?
- What is the maximum capacity you can anticipate needing for future overhead crane needs?
- What motion will the overhead crane need to achieve to move your materials?
- How permanent is the overhead crane you choose and will it need to be moved down the line?
- What’s your budget for an overhead crane?
- How much money will an overhead crane save you in terms of efficiencies?
Overhead cranes, gentry cranes, bridge cranes, and workstation cranes are all offered by EMH – we would love to dive deeper into answering your questions and helping you determine the right overhead crane for you.
There are numerous conditions that make protecting your cranes and crane hoists including the presence of gases and dusts and high temperatures.
EMH provides numerous solutions for mitigating risk including:
Hazardous Duty Enclosures – Enclosures designed to contain any explosion that might occur if hazardous vapors were to enter your crane control enclosure. These enclosures are also designed to cool and vent the products of this explosion as to prevent the surrounding environment from exploding.
Hazardous Duty Motors With Modular Brakes – EMH’s crane hoists are now being built to include motors and brakes that conform to safety standards and can meet custom requirements. As there are a multitude of product certification schemes around the world, EMH focuses on IECEx/ATEX certified motors as our standard.
Hazardous Duty Switches – To keep your crane and crane hoist operating safely EMH also provides both a rotary limit switch for hook upper & lower limits and weight operated limited switches.
Additional Hazardous Duty Materials – EMH also offers class and division rated cabling, hazardous duty fittings, spark resistant features, and vibrating horns and strobe lights to alert workers during a potential event.
Contact EMH for additional ways to protect your employees from potential accidents.
Hazardous duty crane hoists, also know as explosion proof crane hoists, are critical to keep your employees safe.
But we’re not filming a summer blockbuster, why are we talking about explosions? Like it or not, general-purpose electrical equipment can and does cause explosions within certain environments. And this is mitigated (hopefully) by utilizing special wiring and other electrical equipment that prevent dusts and vapors from causing an explosion. But still – it is important to have that extra protection of explosion proof crane hoists.
So when you are in the market for crane hoists, make sure they are hazardous duty crane hoists – crane hoists like EMH’s that are designed to meet the criteria for a Class I, Division 2, Groups C & D location. But what the heck does that even mean?
- An area where flammable liquids and gases are handled, but not expected to be in explosive concentrations. But the possibility for these concentrations to exist might occur if there is an accidental rupture or other unexpected incident.
- An area where ignitable gases or vapors are normally prevented from accumulating by positive mechanical ventilation, yet could exist in ignitable quantities if there was a failure in the ventilation systems.
- Areas adjacent to Class I, Division 1 locations where it is possible for ignitable concentrations of gas/vapors to come into this area because there isn’t proper ventilation.
At the end of the day, picking a crane hoist that is built for the “what if” is critical, and often a matter of life and death as these crane hoists protect your employees from worst-case scenarios.
In the next part of this series, we will take a look at what some solutions to mitigate risk.
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In part two of our two part series looking at which of the primary categories of overhead cranes is right for you: bridge cranes, gantry cranes, workstation cranes, and jib cranes, we look at your facility and how it fits into your choice.
Size matters: How much space do you have – inside or out – to accommodate an overhead crane? And just because a crane will fit into your space does not mean your choice of overhead crane will operate completely efficiently. EMH can help examine your space considerations to make the right overhead crane selection.
Obstacles: Every facility has them. That load bearing beam or column in an inopportune spot. Your overhead space may also be different in different areas, depending on construction. Don’t use your peak height as the deciding factorUncover all potential obstructions to help with your mounting and installation options.
Installation: Hand in hand with obstacles, make sure you make note of runway beams, column supports, and the overall environment where the crane will be installed or assembled. Each type of overhead crane has different installation requirements that EMH will review with you, including your portability needs.
Maintenance and Inspection: EMH will review with you the requirements governing bodies have for maintenance and inspection so that you know your responsibilities before you buy.