Sorry didn't realise you guys were wanting to run competition winches on your rock-crawling, specially lightened, uprated transmission, strengthened chassis Grenadiers ....
I wonder how many 1000Kgs it needs to pull the winch/winch tray off it's mounting points on a Gren' ?
2mm Mild steel will shear/tear at around 500N/mm and an M10 bolt will shear/snap @ (approx) 2.4tonne.
Competition winches are (a) much faster than the winches fitted to on your Gren's (and my Defender) and (b) are specially mounted to spread the load decreasing it's 'oh shit the winch ripped out my chassis' factor by many times.
The Chassis of these trucks are also beefed up significantly so they don't get bent out of shape with the excessive forces applied during 'competition'.
Lastly, from the RED Winch (planetary gearbox/low line) safety instructions ....
The speed during operation must be kept steady and constant.
DO NOT generate sudden movements or shock loads.
I wonder how many 1000Kgs it needs to pull the winch/winch tray off it's mounting points on a Gren' ?
2mm Mild steel will shear/tear at around 500N/mm and an M10 bolt will shear/snap @ (approx) 2.4tonne.
Competition winches are (a) much faster than the winches fitted to on your Gren's (and my Defender) and (b) are specially mounted to spread the load decreasing it's 'oh shit the winch ripped out my chassis' factor by many times.
The Chassis of these trucks are also beefed up significantly so they don't get bent out of shape with the excessive forces applied during 'competition'.
Lastly, from the RED Winch (planetary gearbox/low line) safety instructions ....
The speed during operation must be kept steady and constant.
DO NOT generate sudden movements or shock loads.
