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One ton gantry crane on sale at princess auto

Dabbler said:
Nice mill. Is that a PM935 type?

Both a wood crane and the PA crane will have to remain erect, and will take up that space. It looks like that's not a problem for you (it would be for me)
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Yes, this is indeed the PM935. I also have PM1340 lathe and PM940CNC. Since then, 1/2 of the garage is my workshop and the other half is for the car. I am tight on space. I think I have a way to keep the PA crane erect and it would be useful that way. The wood crane is just too bulky.

I will find some photos of the current shop and will post. I may also find photos for the wood crane under load.
 
salahz said:
your numbers of 750 and 2000 lbs just being cautious and conservative
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yes, kind of. I stand corrected as @John Conroy shows the 2 ton is stronger than I believed. I'm a little squeamish about the 1 ton and lifting even 1000 lbs with it.

The crane should be designed with a failure mode 4X the rated capacity, or 6X if it is being used where harm might come to a person. When I was doing rescue work all of our equipment was rated at 10X the maximum expected load, including shock loads.

Thus the 2 tonne PA crane should start to fail at 16,000 lbs... I just think it is not that strong. :( My crane was designed to lift 5 tonnes, and was checked using FEA program and it was expected to buckle at around 56,000 to 57,000 lbs force.

Yet as @John Conroy shows it can lift 3800 lbs without showing signs of distress, so I'll accept that! :)
 
@salahz Welcome to the forum! We'd love to have you write a little about yourself for the 'Introduction' section... What part of Canada you live in, and what type of stuff you are interested in... etc.

-- It seems that we are all tight on space, save for one guy here, and he's working on it!
 
My crane stores mostly out of the way straddling the length of my 1440 lathe. I am also limited to half of a double garage.

20210901_113355.jpg
 
Dabbler said:
@salahz Welcome to the forum! We'd love to have you write a little about yourself for the 'Introduction' section... What part of Canada you live in, and what type of stuff you are interested in... etc.

-- It seems that we are all tight on space, save for one guy here, and he's working on it!
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Thank you. I like this forum a lot and I will slowly introduce myself and share what I have done so far. I appreciate all the ideas and shared experience from everyone here.
 
Great car! Very simple working mechanism! The gantry crane principle is based on a set of cyclic operations associated with the lifting of piece or tare material and periodic movement of the unit from material slinging to the place of unloading and back. The transportation of raw materials, structures, and equipment are carried out thanks to a special cargo cart. It ensures the machine's travel on the bridge span. The motor of such a crane is very similar to the tractor motor I recently bought https://www.machinerydealer.co.uk/compact-tractors-for-sale/. I do not regret that I bought such a machine! Very useful machine!
 
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