Gate wheels in 50x50x2.5mm box section

[Tristansquest]

Hi all.

I am in the process of making a frame for a sliding gate. It is 3960mmx17800mm. In length and height.

The frame is made from 50x50x2.5 mm box section. With a 100x50x6mm unenqual angle iron welded at the top for guide rollers . I’m the cladding the frame with 120kg of wood . So all together weight of gate will be approximately 220-230kg . The wheels are 120mm diameter and will be installed inside box section which are 2x(50x50x2.5) . I will use thin wall blind bolts to secure wheels in place. My question is:- will the the box section at base where bolts are fixed to cope with the compressive weight of the gate.

 

[Onoff]

17.8m high? Definitely not then!

 

[Agroshield]

The drawing is nice, but we really need to see a detail view of how the wheel interfaces to and joins with the box section.

The box section has four sides, a bottom, top and two sides. Where does the wheel push onto? Just the bottom?

As the gate rolls, you have to consider dynamic loading as well as static.

My gut feeling is that if it is going to fail, it will be local to the wheel/box joint. Hence, some local reinforcement (doubler plates, nicely tapered to ease the stress transistion), would be prudent.

 

[Onoff]

Why not use proprietary sliding gate rollers like this (mine):

https://flic.kr/p/nBHjFJ

 

[Onoff]

My gate is 4x2 PFC with 80x40 uprights

https://flic.kr/p/nv38hw

 

[Mark 2]

My gate is 4x2 PFC with 80x40 uprights

https://flic.kr/p/nv38hw

Very fine mesh in that gate Sir.

 

[Onoff]

Very fine mesh in that gate Sir.

Not any more!

https://flic.kr/p/2qqUK7N

 

[Tristansquest]

Hi all.

I am in the process of making a frame for a sliding gate. It is 3960mmx17800mm. In length and height.

The frame is made from 50x50x2.5 mm box section. With a 100x50x6mm unenqual angle iron welded at the top for guide rollers . I’m the cladding the frame with 120kg of wood . So all together weight of gate will be approximately 220-230kg . The wheels are 120mm diameter and will be installed inside box section which are 2x(50x50x2.5) . I will use thin wall blind bolts to secure wheels in place. My question is:- will the the box section at base where bolts are fixed to cope with the compressive weight of the gate.

Hi . Thanks for your responses.

As can be seen the cut out in box section for wheel. Another box section with cut out in base which will be welded on top to prevent debris getting into box. I have some 100x50x6mm angle iron remaining that could be welded to the side and bottom to add stiffness to the wheel area where bolts go through?