Hiab Crane Cad Block
Anthony Small
In addition to studding PCM holds large stocks of suitable nuts and washers. To further aid the fitment / refitment of loader cranes a range of accurately produced mounting blocks are available. These blocks are faced after cutting and drilling to present a working surface for the nut / washer at exactly 90 degrees to the drilled hole axis.
We also stock Stabiliser/outrigger pads and locking stabiliser pad stowage boxes ideal for lorry loader cranes, mobile cranes, access platforms, plant and equipment, recovery vehicles, skips. Follow link to stabiliser pads.
Looking at purchasing a used vehicle with atlas 65.2 crane. Can anyone advise on how feasible it is to add hydraulic lines suitable for rotator and grab? Is it even possible, would it cost a bloody fortune... would I be better just replacing the crane with one that were made earlier.
How easy all depends on the spool block, some spool blocks are bolted together and you can add extra sections to accommodate more services. Others are cast and will either need to be changed for one with the extra services , worst case scenario you could fit diverter valves on the pipes that service the legs .
If it is a monoblock valve without the extras, you can fit a second block to operate the 2 extra services, it would need plumbing in on the pump side of the existing and fitting with a high pressure carry over to serve the existing.
Someone I know who fits cranes does extra services for rotator and grab, depending on how many extensions the crane has it can get quite involved and expensive all that pipe has to go somewhere out of the way when the boom is in, that's without adding in what it will need valve block wise.
I would say that fitting a grab and rotator would be unnecessary for arb work. Assuming its a HIAB type crane then they are not really designed for grab work and they lack the slewing torque of a loading crane. I would say think about the average job that you will use it on and count the lifts, chances are it will be less than 10 per job. So for 10 picks you'd be as well using slings or chains, you may also be able to use a manual boom extension which will come in handy.
Personally I would not want to go back to no grab, even for just arb work, loading is not a huge pain with slings (although it is a fair bit slower) but unloading a trailer with slings is a real pain, IME.
Thanks for your replies, gives me a better idea of what might be achievable. Most the examples I've found of this model seem to have grabs on the end, which led me to the hope they might use the same block on them all or at least are easily adapted. Maybe wishful thinking.
I just cant imagine operating without a decent grab, its not just loading/unloading sticks . There are dozens of situations where they are a massive time/labour saving tool. Stuffing Hawthorn into the bulker bin for one:thumbup1:
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Instructor scared us to death about the damage to property & people that can happen if the hydraulic fluid leaks and comes into contact with skin or gets on the floor etc. Was it all bull or is it really that dangerous?
Your hiab ticket covers lifting whether rota for bricks or blocks, tiles, slabs, kerbs etc or bucket. Remember it is a lorry loader or unloader not a tower crane.
What I mean by that is customers will always want you to put it somewhere beyond your safe reach. Dont lift over your head or anyone else, dont lift over cars or things of value. When I was an owner driver I use to offer the crane service of off loading for free,therefore I got no legal problems with damage or what the crane could or could do. Dont lift brick, tiles or blocks onto scaffording they will ask if they think your green to save their backs from moving them. oh I always use to put a sock over the grab lever on the older hiabs but not the multiblock control .Take your time do not rush. Good luck.
the oil can cause damage to property and people,you need a seperate licence for brick/block as far as i know as ive got this as well as my hiab certificate,i personally prefer the remote control hiab or the sit down crane(mostly brick/block grab)just take it nice and steady on the handles and try not to cut corners
I hate doing cabins just when youve got it lined upto drop on the bed the wind picks up and it moves , boats are another thing I hate lifting everytime I have one to do I always get soaked or covered in weed while chaining it down
Always used a spreader board under the stabalisers {spelling ) even if the ground looks good, and always have a good look around skywards before unloading .
Prefer the stand on platform method personally and those remote control ones seem too jerky/ all or nothing for my liking.
im thinking of doing my lorry loader ticket as quite a lot of ads in my area. however they never specify what type of attachment they require you to have. so in theory you only havea 33.3% chance of having the right ticket and i could be wasting my time and money. how gay
Getting your HIAB ticket is a great idea imo, specially if your new to driving, gives you more opportunities, especially with builder merchants like travis perkins as theyre always taking on drivers and dont mind newbies
As said before dont lift over cars and stay clear of overhead cables, use spreader boards on all surfaces unless its the road, beware when delivering in busy streets as there will alway be some clueless numpty trying to walk under your crane so look out for them. When unloading try to keep what your offloading close to the ground, especially if its tiles, if the grab fails or the pallet breaks they wont have far to fall and you wont make a mess.
A block clamp is like a scissor grab which is fully mechanically operated via a crane, loader crane (hiab) or forklift truck without the driver having to leave the safety of his cab. The lifting gear minimizes swinging of the concrete block and allows accurate positioning at 90 centres.
The block clamps are equipped with an automatic locking mechanism. The system holds the clamp open between lifts, allowing quick and easy single person operation. This facilitates efficient loading and unloading, saving both money and time.
This concrete block lifting device is fitted with interchangeable rubber pads to reduce slippage risk. Thanks to the white rubber pads, they also do not leave any colour on the concrete blocks. The rubber profiles are also available as spare parts.The rubber pads are available in black and silver and can be purchased as spareparts as well.
Block clamps are used with HIAB or lorry cranes, tower cranes and forklift trucks using a yoke. These yokes or lifting beams are available in two types. Which type is needed depends on what the yokes are used for. We offer dual-direction beams and single-direction beams.
I'm currently working on dynamic blocks of telescopic mobile cranes. These will be used for preparing 2D lift plans. Dynamic blocks are very helpfull for this and save a lot of time. Although I found warnings on this forum to be carefull with dimensional constraints I found them relative easy to use and I've choosen the constrants to build a few test models.
Based on these models I've now built an actual full crane model (side and top view). The number of constraints in this model is a lot larger than the numbers in my test models. And yes ... I now found out that the constraints can give you a headache! I am probably better off using parameters & actions only.
I've attached two of my test models to give you an idea on the required motions (two jib types). Up till now I managed to build a telescoping, rotating, main boom using parameters & actions. However there are still some issues:
I'm not sure how to accomplish the first desired motion (moving a grip horizontally and having the two angles adjust accordingly) although it seems like it should be possible to adjust the main boom angle, then adjust the height, then adjust the jib angle to end up at the desired offset of the tip, no? I'm not familiar with cranes so I might be getting the terms wrong.
@ right model: the jib angle (your 'angle2') + mainboom length should be set first. After that the mainboom + jib (together) should be set to the desired radius. So, if you would get your model working with the grip of angle1 attached to the tip of the jib, than we are there (if I try this, the base point of this rotation -angle1- changes when I rotate my jib ....).
I know that making a Polar action (imagine it would work with horizontal) and a block table you can make the first request work, however, it would not be an automatic setup you would have to go through one by one and tell the BLock properties table what happens at each angle and distance (I have done this on one of my blocks and it took nearly a week), as far as I know that is the only way to getting a linear/polar action to work on adjusting other actions, so someone might know another way.
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