We show the math.
A sizing answer you can't check is an opinion. Every sizing answer here names the maker's published rule, the document it came from, and the arithmetic. Check it yourself.
The maker's rule, with the maker's name on it.
Makers disagree with each other on sizing. We show each rule as the maker wrote it. We don't average them and we don't invent a rule of our own.
The smaller unit when it fits. The bigger one when the load needs it.
When a maker's rule says the smaller unit carries your machine, we say so. When your compressor, lift or CNC needs more, we say that too, and we show you whose rule says it.
We don't play electrician.
One person runs this store, and he's not an electrician. Wiring, service size, code and permits go to a licensed electrician and your local inspector. The makers say the same in writing. Hard application questions go to the maker's engineers, and we give you their number.
One person answers.
Call (855) 923-2610 or email contact@builtforproduction.com. One person answers, and it's the same person every time.
Policies written for freight, in plain words.
Converters ship by truck. Our Shipping and Returns pages say what arrives, what to check before you sign, who pays return freight and what a return costs. No surprises in a later paragraph.
Why not buy direct from the maker?
You can, and if you know the brand and the size you want, that's a fine way to buy. Come here when you don't know yet. We put the makers' converter types and sizing rules side by side, on one page, with the math visible, so you can pick the unit that fits your machine and your service. We never claim a lower price than the maker.
What we are.
An online retailer, run by one person, Josh Joseph, in Portland, Oregon. The makers build the units. Every technical claim on this site names its maker source. Checkout runs on Shopify. More on the About page.
Not sure of the size? Call (855) 923-2610.