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If the structural design of something is wrong, it leads to safety hazard. This is a geared wheel used to open a shutter to pour concrete. Never had an issue with it until recently some feedbacks came that there may be a trapping hazard or its too close to the skip. I am referring to the closest...

HI All, DO we have a regulation or standard govering the minimum distance between the geared wheel and the skip surface to prevent any trapping hazards ? thank you

Should shackles be proof loaded after 4 years ?

Hi guys, I was wondering if I have a shackle of pin diameter 39mm to be used on lifting equipment on construction sites, what sort of diameter would it require ? is there any guidance to that ? At the moment I am using 41mm. is there a range of play allowed and safe ? Thank you kindly ethan

Any document that i can read and send that to prove this to our workshop ?

Hello there. we use carbon (mild) steel. any information about if heat treatment is advisable if we repair damage skips especially the lifting bar if twisted?

Hi guys, anybody knows when heat treatment is required ? any American or British Standard ? For example my concern are the skips that are used on construction site to lift concrete. They are usually bent and damage. At the moment we just bash it and apply heat if necessary to straighten it in...

OSHA regulation paragraph [1926.1431]

Hi guys, anyone know if there are regulations for man lifting baskets ? how to make them to conform to some standards if any ?

the catching point is the doors comes in 2 parts, thats how it was designed to be able to lift vertically and horizontally along the angle rail. is there no safer way to have that door in one unit being safer ?

thanks for reply. is that something required by law ?

any idea to make this rail door to close slowly and safely ? maybe chain the mechanism of the whole door ?

Door handle and 2 parts of door to allow run on angle http://files.engineering.com/getfile.aspx?folder=81a6d561-17da-435d-95f1-40f065b5cb56&file=SAM_1692.JPG

angle of railhttp://files.engineering.com/getfile.aspx?folder=30b37f84-3302-44d9-8041-c76a7d5e5462&file=SAM_1689.JPG

rail mechanismhttp://files.engineering.com/getfile.aspx?folder=094891d9-6df8-4b4a-925b-877615bcbd1c&file=SAM_1688.JPG

waiting for a larger photo will post one in a bit

Hello, Good Morning, We are making some test weights, for example 250kg by filling them with iron. ( just a testing cube shape) I would like to know if there is a procedure of certifying them properly ? or if there is any regulation that governs that please Hope you can help. Thank you kindly

Guys, need some advice. I am sure you have heard about man basket. Those cages that use chains to lift and transport personnel. They are used on construction site and also in large trenches. I attached a photo. the cage is made of steel metal. As you can see the door mechanism lifts vertically...