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Large cranes can require five to 10 support trailers, or even more for the largest cranes, writes Greg Keane. The options of using external carriers or buying and modifying a standard trailer are increasingly unattractive for the specialised needs of having ancillary equipment outrigger pads, base plate, hook, counterweights, jib sections arrive in an order that suits the crane set-up procedures, and maximising the payload and payload distribution without overloading, while at the same time providing a safe work environment. Easy accessibility to sites has also become important, given the volume of work in urban areas with limited space for loading and unloading counterweights. The TRT range covers semi-trailers and B-doubles, with both skeletal and decked designs available. All have specifically-designed mounting modules to locate counterweights, pads and hooks in a location that optimises legal weight distribution, and then secures them in place.
High tensile steel construction keeps the tare weight low without compromising strength; and is critical to meeting the requirements to carry a 30t payload under the Mass Management rule.
This understanding translates to significantly less time spent setting up and pulling down a crane, to the extent that target times can often be bettered.See What Happens to a Hook When You Overload a Hoist
He sees benefits in not using chains and dogs to secure a load, with pins used instead. Some loads can be secured from ground level but where it is necessary to work from the trailer, the required deck, rails and access ladder are provided.
A further benefit it that with dedicated trailers, the counterweight can be left on the trailer between jobs, and the counterweight can be removed in sections to suit the slot on the trailer, rather than as individual elements.
on how the crane is set up i.e. how far the boom is extended and the angle of crane can lift 20 tonnes at a given radius but the hook and lifting. Simple symbol. The old blue lifting crane hook is used in construction site on white background. Heavy duty industrial chain hooked up on a construction crane. (crane blocks, hook blocks) are designed and finished. The products line of rigging blocks, such as Snatch Blocks and light weight tilt-up blocks (HCLWs).
Shawn appreciates being able to have input into the trailer design to suit the business and having full access to drawings.
He sees TRT as being ahead of the game in terms of quality, flexibility and just being easy to deal with, saying that this also applies to the family behind the TRT company. Brian Taylor of Valley Cranes credits Shawn Borger with introducing him to TRT trailers years ago, when he was looking for a trailer for a t crane.
OVERHEAD AND GANTRY CRANES. 2 Wire rope is made up of three basic parts: the core, the wire .. Check the connecting link to see if it's bent, twisted, or . For instance, a festoon power cable reduces crane hook approach due to what's referred to as “stack up.” Stack up takes place because the festoon runs on a. Ultimate Steel Beam & Bulk Bag Lifting Machine! Hire the Hooka mini tracked crawler crane for safe & easy bulk materials & steel beam handling.
With the recent purchase of a refurbished t AT crane to spearhead the fleet, Brian again turned to TRT and bought four trailers — the first to carry 22t of counterweight and bog mats, the second to carry 28t of counterweight, the third to carry the maximum permissible 30t load and the fourth a step deck with ramps that is used to carry two 10t wing weights but can also be used for other purposes such as transporting Frannas and machinery.
There are times, however, when a limit on crane hook approach is desired. Newer technology, such as Konecranes Smart Featuresallows overhead crane users to electronically limit hook approach, preventing operation in certain restricted zones, such as around an office or in the middle of a production area.
To achieve the best crane hook approach for your application and facility, contact a Konecranes representative to explore your options and begin the design process.
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Maximizing crane hook approach maximizes use of your crane and building pace, and also increases productivity. Workstation Cranes.
Choosing the right type of lifting hook that can be used will be required on a crane hook or a sling hook, the decision is ultimately left up to the. A lifting hook is a device for grabbing and lifting loads by means of a device such as a hoist or crane. A lifting hook is usually equipped with a safety latch to.
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