manufacture of hydraulic table legs?
Discussion
Can, or does any business here manufacture hydrualic legs to be used to support a bar table. This is for commercial use in a bar, where the bar height during the day will need to be low (50 - 70cm from floor) and during the evening raised to 115cm. The bar top surface will be solid oak, 3m x 0.7m. The legs must be easily adjustable by one staff member, but also lockable to prevent joe bloggs adjusting them during opening hours. Only one pair of legs are required. Brushed steel would be the prefered finish to the legs. Please contact me at cliff@studiolimonard.co.uk if you can assist or know of anyone who can. Supply is required for mid February.
If you want off-the-shelf components, you'll find that there are systems available to support height-adjustable tables and worktops for use by wheelchair users. I've specified electrically operated and manually operated (cranked up and down by hand) in the past, but I imagine hydraulically counterbalanced systems are available, too.
Try contacting someone like Westholme in Halifax, in the first instance, or do a google for disability+heigh+adjustable or something similar.
Try contacting someone like Westholme in Halifax, in the first instance, or do a google for disability+heigh+adjustable or something similar.
There shouldn't be any problem using hydlaulics. Just make sure the rams are used as the mover not the stabiliser (ie have some sort of locating legs with locking pins) The rams themselves needent be too large in this case. You can power this with a basic tail lift pump but I would advise you rig it up to power the bar down and not like a tail lift under it's own weight. Reason is that you may not have enough weight to press the rams down and they can also lower unevenly unless powered.
See your local hydraulics specialist as they will be able to steer you in the right direction.
To get power up and down from a taillift pump you will need to insert a diode (the hydraulics supplier will normally refer to these as anti reverse diodes) in both the extend and retract electrical circuits to prevent the pump trying to do both at the same time and also ensure you get flow restricters inserted into both hydraulic circuits to ensure steady and safe operation.
I used to pay roughly £1500ish for two rams all the fittings and the power pack to run twin ramps on 7.5t plant carriers.
See your local hydraulics specialist as they will be able to steer you in the right direction.
To get power up and down from a taillift pump you will need to insert a diode (the hydraulics supplier will normally refer to these as anti reverse diodes) in both the extend and retract electrical circuits to prevent the pump trying to do both at the same time and also ensure you get flow restricters inserted into both hydraulic circuits to ensure steady and safe operation.
I used to pay roughly £1500ish for two rams all the fittings and the power pack to run twin ramps on 7.5t plant carriers.
sb-1 said:Don't see why. Stick an electric motor on it with a mechanism to auto-off at either end and it becomes "easy". As for "quick", why does it need to be quick?
There's loads of other ways. A scissor-jack arrangment or a tooth & ratchet system, for example.
Having said that, wolf1 is right - the tail lift mechanism from a lorry should be sufficient for the job, especially when used with legs and locking pins as he suggests.
>> Edited by JonRB on Monday 9th January 12:31
JonRB said:
There's loads of other ways. A scissor-jack arrangment or a tooth & ratchet system, for example.
Scissor mechanisms will have to run guards due to their design
Just to add you could use solenoids to control the locking pins. This will make it easier to use and keep all controls etc in one place.
>> Edited by wolf1 on Monday 9th January 12:47
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