Denford Triac VMC with ATC Conversion / Fix

[m_c]

RS are expensive for pneumatics, but they're mostly supplying repairers who will pay extra to get a machine back up and running quickly. Parker are also expensive if you're paying full price, but machine builders get quite big discounts, which is why they're so popular.
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Try the Norgren catalogue to see if you can match the cylinders - http://www.norgren.com/uk/info/12/actuators
Once you have a part number, try googling it to see who can supply it. I've not used pneumatic actuators for a long time, but the hardest part was always identifying what you need.
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There is a possibility the threads could be imperial, so could be worth investing in a couple sets of imperial and metric thread pitch gauges, as pneumatics/hydraulics still use quite a bit of imperial.

[Chaz]

RS are expensive for pneumatics, but they're mostly supplying repairers who will pay extra to get a machine back up and running quickly. Parker are also expensive if you're paying full price, but machine builders get quite big discounts, which is why they're so popular.
.
Try the Norgren catalogue to see if you can match the cylinders - http://www.norgren.com/uk/info/12/actuators
Once you have a part number, try googling it to see who can supply it. I've not used pneumatic actuators for a long time, but the hardest part was always identifying what you need.
.
There is a possibility the threads could be imperial, so could be worth investing in a couple sets of imperial and metric thread pitch gauges, as pneumatics/hydraulics still use quite a bit of imperial.

Ive looked at 3 sets of suppliers now including Norgren. For a 25mm bore, they all use M10 for the rod. I could drill / tap if needed, not ideal but if If Im not going to get the original part, Ill need to make a plan.

[Chaz]

Actually, thinking about it last night, when I checked, I was in a rush. I grabbed a bolt which I thought was M8 but I think its M10. Ill measure tonight to be sure. Ive found what I believe to be the same Joucomatic part as what is on the up / down, its also 10mm. The mounting nut is 22mm which is correct.

[JAZZCNC]

These guys will probably have what you want and just over hill in sheffied. . . . http://www.airaccessories.co.uk/

[Chaz]

These guys will probably have what you want and just over hill in sheffied. . . . http://www.airaccessories.co.uk/

Thanks, have emailed them. A bit disappointed in many of the local companies. They clearly dont need my business. Have asked a few for assistance with little response. Hopefully these guys can help.

[Chaz]

OK, the thread is M10 fine for the actuators. M10 x 1.25, all the specs are the same.

[i2i]

this is weird, the last time i changed one of these i had no problem getting an exact replacement and as low as £12. It was a couple of years ago but there were loads about.