I'm so glad to see a current post on this topic in the USA. I hope someone can help, and I hope my post is also helpful.
I own a mobile food business - we have a trailer with a large, wood-fired oven and we bake artisan breads, crackers, pizza, and pastries.
Our trailer works city streets, private parties and events. It is a 24-foot enclosed cargo trailer that is towed by an F250 longbed.
In our business, driving a trailer is a non-revenue-generating function. Critical, but the revenue drivers for us are customer service, food preparation and presentation.
Parking in tight spots we must do every day, quickly and flawlessly. And so therefore, the caravan mover products are must-have gear. Otherwise we limit our growth and ability to operate our food business.
After a lot of research, we imported an EGO Quattro system from PurpleLine. It had the power rating for 7500 lb trailer on an incline, and a 5-year warranty.
We've installed it and it works great - EXCEPT - they don't offer the wheels needed on the tongue jack. It appears that in the UK they're using wheeled jacks that aren't strong enough for my application.
I have had great trouble finding a set of solid rubber or pneumatic castor wheels that can handle the 1,000-1,200 lb tongue weight, and that also have a narrow-enough wheel base so that the castor will indeed pivot. The only products we have been able to acquire are polycarbonate wheels - which lock up trying to turn on uneven surface, dig into the turf on soft surface, etc.
The result? The caravan mover easily moves trailer backward and forward, but it can't turn.
The manufacturer (PurpleLine) referred us to a competitor "Easi Mover" by Royal who offers the perfect wheel set. Royal represents itself as having USA dealers. Trust me, they don't. They have drop shippers who apparently I'm the first person trying to buy anything. After 1 month of a USA trailer dealer trying to get responses from Roayal, we still don't have the part. Nor does Royal ever return emails or phone calls from the USA dealer.
So I'm back where I was 1 month ago - without a solution. I've looked at industrial caster manufacturers offerings and there doesn't seem to be a solution there, either.
Does anyone have any suggestions (jokes at my expense are OK - but any serious ones we'd be so grateful)? Here's a link to the part I was after: