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ROPS

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Dan-IA

04-19-2006 20:38:10

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I'd like to know a little more about ROPS (Roll-Over Protection System) on a tractor. In my larger, more modern tractors, inside the cab I see large beams for the corner posts of the cab. I've heard these called "crash bars" as well.

Now, since my present project is to convert a tractor to a rear loader, and my attention is now turning to laying out the new platform design, I'd like to better understand just exactly what a ROPS is. From what I gather online, I just need to add a seat belt and put together some sort of heavy frame that's solid enough to keep the tractor off the driver, right?

I'm thinking I'll have to build this myself, because I can't imagine that someone would mass-produce a ROPS for 50-year-old tractors like this Cockshutt 30 I'm using.

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Burnie

04-21-2006 05:49:12

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Re: ROPS in reply to Dan-IA, 04-19-2006 20:38:10

In Australia the ROPS situation is very similar to the UK, although they have only been compulsory here for about 20 years. They must have an ID plate and conform to an Australian Standard. Along with PTO covers they are probably the most important tractor saftey inovations. Take heed of JDknut's comments. I would not recommend that anyone build a ROPS without proper design and testing. Even the angle of the ROPS relative to the tractor is critical, and will be different for various tractors. For a little extra money, you can buy a ROPS that you know will do the job. Do it yourself and you'll never be 100% certain.

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chuck t

04-20-2006 09:23:12

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Re: ROPS in reply to Dan-IA, 04-19-2006 20:38:10

it there a supplier for Masseys from the '60s anywhere?

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Richard H.

04-20-2006 06:50:06

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Umbrella holder in reply to Dan-IA, 04-19-2006 20:38:10

I just finished this for a little bit of protection. I may modify it next winter after I decide what seat I"m going to. When and if I sell this tractor it will be in writing that it is a canopy holder only. The bolts holding it down are case hardened # 8s. HTH, Richard

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JMS/MN

04-20-2006 07:09:42

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Re: Umbrella holder in reply to Richard H., 04-20-2006 06:50:06

Couple thoughts on your great idea, especially since you might modify it in the future. How about a 4 post frame with box frame on top? If you flip your present one in mud, there is very little surface area to hold up the tractor. Box frame could be covered to provide shade as well. Also- consider replacing the corner gussets with full-width U. If you flipped sideways and hit your head on the narrow gusset steel, likely to pierce your head.

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JDknut

04-20-2006 03:58:34

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Re: ROPS in reply to Dan-IA, 04-19-2006 20:38:10

A ROPS is actually a carefully engineered system for any particular tractor it is used on. It has to take into account dynamic forces from the rollover and also withstand cold weather conditions, as cold temperatures make steel brittle. The mounting of the ROPS to the tractor is critical. I designed and had one built for a White tractor, and now have an aftermarket one on my Deere. I used structural tubing, 50,000 psi and full penetration welds where possible. The best thing would be to have an aftermarket company supply one that is specific to your tractor. I am not sure, tho if there is one to fit a tractor as old as yours. You could probably get someone to design and build one, but it will have to be engineered, or do it youself if you have the capability. Mine cost about $500.00 but then I did the engineering and drawings. I wish you luck on this, and a ROPS is definitely a good idea, wouldnt be without one. ALso, if you have a canopy on the ROPS, it is useful for protection from falling objects if you use the tractor in the woods

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David Bate

04-20-2006 13:20:48

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Re: ROPS in reply to JDknut, 04-20-2006 03:58:34

In England, ROPS or "safety frames" became compulsary in the late 1960's. They had to be built, tested and approved before they could be sold & fitted to tractors. The tests included rolling over a tractor, and swinging a large weight against the frame to see if it broke or distorted.
Today many of these frames have rotted and rusted and are "unsafe" and illegal. A couple of companies has started to re-manufacture the most common versions which will fit Ford Dexta, MF 35 & 135, Ferguson 20 etc. These are manufactured to original specifications.
Today in Great Britain is ILLEGAL to sell an older tractor without a good ROPS. If someone buys a tractor and has an accident, they can sue the seller !!!
A couple of years ago, good secondhand ROPS were available from dealers & breakers for $87. Today they are changing hands at $250. Some antique tractor shows and plowing competitions are insisting that all tractors that had ROPS available for them in the 1960's must be fitted with one now - again incase of accidents & being sued.
The Health & Safety Executive here who monitor all guarding of machinery & investigate accidents have drawn up a listing off tractors that should have ROPS, and the makes & models of antique tractors for which ROPS were never designed to be fitted to. Its this crazy "I'll sue you if I can for anything that goes wrong to get your money" world we live in.

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