Hi !

Pls try Achi or Trelleborg(Mornach) tires

Rgds,

I wouldn't change the width of the tire because your messing with the original design of the manufacturer.
The better the quality of a rubber tire the softer the rubber and the faster they may wear.
What brand tire are you using. You may want to consider Continental tires. They are probably the best tire that you can buy but they are pricey. Another alternative would be polyurethane tires. They will last forever but they are really, really hard and will "flat spot" when the truck sits. They cause a thump until you heat the tire back up again.

The 5k unit has a better trade-in value than the a 3 or 4T - better resale potential in the second hand market.
I would suggest you try a higher durometer tire first.
Secondly, watch your operators to see if the are turning the steer while while the truck is fully stopped this eats up tires. If they are the solution is to get them to turn while the truck is slowly moving when the are trying to get in position to pick or deposit a load in the storage rack area.
Just another question are your tires non marking (white) - if so the will wear out much faster as the are a softer compound tire and are they tread design or smooth (tread tires will dissipate heat better than smooth (more surface area But my inclination is that tires are being chewed up by standing still then tight turning. Like those black marks you seen in your drive way when you have turn tight because of a traffic jam.

Thanks, John. We've talked about 3K and 4K trucks, but for some reason the boss has been reluctant to buy them.

The floor is smooth concrete and the seams are all relatively close together and even. The building was built in stages, with the oldest part on 10 years old or so.

We did talk to our Yale rep, and I've been waiting to hear back from him, I just thought that maybe someone would have some insight on tire widths. We have several trucks of the same make, but they have different width tires. I'm not sure why, just curious how much of a difference it makes. I think Yale told our purchasing guy that the wider one will dissipate heat a little better, and for $30 more, it's worth a shot.

Yale has done almost all of our tire changes, and the 6" tires we have are all flush with the outside of the rim, so any overhang is on the inside. I haven't seen any signs of wear from them rubbing on the frame. Something to keep an eye out for, though.

Thanks again for the reply.

-Cevin

Wider tires will have a greater load handling capability - i.e max load rating. But the extra 1" width may cause other issues 1.) it may cause an interference with the steer wheels are turned in fully to the right or left. 2.) if the tires are pressed on existing wheels and you will have at lest 1" of the tire steel band extending beyond the wheels, This can cause an issue should the steer tire make contact with a hard object, dock plate curb, metal column, etc. That is the tire band can be bent. 3.) Also, the steering tread width (center of left tire tread width to center of right tire tread dimension) of must be maintained to maintain compliance to truck lift truck rating capability. 4.) This may be you best solution - tire companies make tires in a higher durometer (hardness rating) The harder the tire the rougher the ride & higher the price.
The squeegee effect when turning tight will cause faster wear & cracking. When a truck is operated empty ~60-65% of the gross vehicle weight is being carried by the steering tires (they are smaller than the front ones & generally last 1/2 as long or less if a lot of tight turning is done with the truck sitting still- operating training might help kinda' like teaching a teenager not to burn rubber with the families station wagon.
My suggestion contact your local Yale dealer (service department) and they can (or should be able to) answer or provide info all these items.

My other thought is you seem to indicate your fleet of 5K handles light loads the majority of time and only occasionally heavier loads. This means your tires are seeing constant heavy loading. to me. In the future you way want to step down in lift capacity to a 3K or 4K (long wheel base unit, not the a short wheel base) for the majority of you fleet & only have 1 or 2 5K units.
One thing you failed to provide us is the floor conditions and the status of the floors at the expansion joints. It get cold up there and floor foundation shift from freeze thaw cycle take there tolls on concrete
Hope this helps, ask a question if you need information.