d&bhead Posted September 12, 2011 Share Posted September 12, 2011 Looking for a decent wind-up stand, not too heavy if possible. Wont have to much weight on it, literally 12 units all weighting less than 5kg each on a 3m span of truss (so 2 stands per 3m) Needs to go 5.5m high Suggestions please :) Link to comment Share on other sites More sharing options...
themadhippy Posted September 12, 2011 Share Posted September 12, 2011 was going to suggest powerdrive but the tallest they do is 4.6 meters Link to comment Share on other sites More sharing options...
J Pearce Posted September 12, 2011 Share Posted September 12, 2011 I've used alpteks before, and they were great, but they couldn't ever be described as light. I think at that height anything you will find will have to be heavy to counteract the leverage. Link to comment Share on other sites More sharing options...
Jivemaster Posted September 12, 2011 Share Posted September 12, 2011 At 5.5m and 80 kilos inc trussing, it's not going to be a easy to carry stand, I've no doubt that these stands exist to that height and load, but not as light weight stands. Get yourself to Plasashow.org it's the industry show and it's on til wednesday 4pm if it exists you will find it there but not as a cheap product. Link to comment Share on other sites More sharing options...
pbudd Posted September 12, 2011 Share Posted September 12, 2011 Here:http://www.doughty-engineering.co.uk/shop/29/index.htm or here:http://www.manfrotto.com/category/8373.16112.0.0.0/Stands Would be a good place to start, but the last person was correct they're not going to be cheap or light to get up to that height. Link to comment Share on other sites More sharing options...
d&bhead Posted September 12, 2011 Author Share Posted September 12, 2011 Wondering if would be best to build that high with truss legs instead with base plate and stage weights? Link to comment Share on other sites More sharing options...
Jivemaster Posted September 12, 2011 Share Posted September 12, 2011 Any wind up stand that I have seen has a relatively small footprint for a load height of 5.5m SO indoors you would need to stop people or draughts pressing on the assembly, and outdoors please allow a fall over zone of at least twice the height. Search youtube for "stage collapse" see if that is what you want. Probably the reason why these stands are rare is that safe uses for them are rare too. Get a properly calculated trussing stand supplied. Link to comment Share on other sites More sharing options...
Junior8 Posted September 13, 2011 Share Posted September 13, 2011 I would have real concerns about stability at over five metres even if stands were available for that height. The only product I've seen which would do the job is the Doughty Zenith, and similar heavy duty, available for hire from Stage Electrics at £87 per week. The footprint is 2m. The SWL is well in excess of your requirement. Based on bitter experience do not push lightweigt stands to their limits. I'd be inclined to agree with Jivem. Link to comment Share on other sites More sharing options...
d&bhead Posted September 13, 2011 Author Share Posted September 13, 2011 The actual load now thinking about it is tiny2 500 watt profiles4 led Cana10 led pinspots but I need th height and can't rig to the roof Cans not Cana bloody iPhone Link to comment Share on other sites More sharing options...
kerry davies Posted September 13, 2011 Share Posted September 13, 2011 It ain't about the weight but the height to base spread ratio. Tripods run out at a ratio of around 2.5/3 to 1 so a 5.5m high stand would need to be 1.8m/2.2m spread. The length of those legs and the moments involved mean a rather chunky stand profile and, personally, I would definitely go for trussing instead at that height. More hassle maybe, but a lot less risk of needing to justify a choice of stands should anything untoward occur. For instance simply having a widespread base increases the risk of someone stumbling into or falling over them. JP, Hippy, Junior and Jive are experienced guys and even this cynical old git would take notice of their comments. Link to comment Share on other sites More sharing options...
greenalien Posted September 13, 2011 Share Posted September 13, 2011 Get yourself to Plasashow.org it's the industry show and it's on til wednesday 4pm Just checked, it's actually open until 5pm on Wednesday. Had me worried for a minute there, 'cos that's the day I'm going and my return coach doesn't leave until 6pm! Link to comment Share on other sites More sharing options...
Jivemaster Posted September 13, 2011 Share Posted September 13, 2011 OK you have another hour in which to visit PLASAshow (dot com) and see the industry's best offerings. You may well find exactly what you want in terms of height and load capacity. You may also find that the price goes against you as does the footprint and the weight of the hoist. The issue is not the given load to be supported, your indication is a trivial amount compared to the scale. The issue is the stability of the structure. You seem to be planning a street lamp post without the 2m insertion in the concrete loaded earth. Sideways forces come from wind or indoor air currents, they also come from people inadvisedly or inadvertently leaning on the post or tripping on the footing arrangements. once a set of happy drunks tries to shake your system it will likely fall over and lay itself out across the heads of adjacent punters. Your insurers will then say that you didn't offer due dilligence and disclaim liability leaving you with potentially unlimited liability and costs. Link to comment Share on other sites More sharing options...
timsabre Posted September 13, 2011 Share Posted September 13, 2011 We've got some LiteStructures Gig Towers which go up to 6.5m. They have flat outriggers for stability, which as has been mentioned is a trip hazard, but they are extremely stable. I don't think they sell them any more but they are very similar to this:http://www.ac-et.com/images/products/WO70LWT265.jpghttp://www.ac-et.com/lighting/products/work/support_and_grip/stands_58/WO70LWT265.asp Link to comment Share on other sites More sharing options...
Jivemaster Posted September 13, 2011 Share Posted September 13, 2011 I certainly don't doubt that suitable stands exist, BUT from the OP I doubt that the poster has realised the cost, risk and hazard implications. Link to comment Share on other sites More sharing options...
J Pearce Posted September 13, 2011 Share Posted September 13, 2011 Tim, doughty do a similar stand marketed as the zenith, and mobil tech do another marketed as alptek. All are rated for around 200kg vertical load, up to 6m, with little wind loading. A cheaper option would be a manfrotto wind up, but they top out at 3.5m. You pays your money you takes your choice! Link to comment Share on other sites More sharing options...
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