How To Connect a Hydraulic Oil Cooler For Single or Double Pass

cooler2When locating an air blast oil cooler on a machine, it should be situated so that it is at least half the fan diameter clear of any obstructions on both sides of the core. I recommend connecting the cooler so that oil flows from bottom to top, or if the tanks are on the sides, from lower connection (inlet) to … Read more

How Big Should a Hydraulic Oil Cooler Be?

air-blast heat exchangerAs a means of power transmission, hydraulics has many advantages. But overall efficiency is NOT one of them. A single-reduction gearbox has an efficiency of 98 to 99 percent, double-reduction 96 to 97 percent and triple-reduction 95 percent. And a chain drive in good condition has an efficiency of 97 to 98 percent.

A high-performance piston pump has an efficiency … Read more

One Thing to Check Before Relocating a Hydraulic Machine

500HPU1I’m currently visiting the Snowy Mountains region in eastern Australia, near a small village called Jindabyne, which is about 5 hours drive from Sydney. Jindabyne is 3000 ft (944 meters) above sea level.

As you’d expect, I’ve seen hydraulic machinery working on roads and construction sites in the area and I wonder how they perform on a hot day. Because … Read more