For this test, the time to silt-up completely ranged from one-half to two hours because the tested valves had varying diametral clearances and spool/body-land overlaps due to manufacturing tolerances. Over the years, a number of technical artic...
I design auxiliary hydraulic systems for trucks. On many of these vehicles, there is not enough space for the optimum-size reservoir. In such cases, I use the circuit at right to accommodate the high flows generated by fixed-displace...
Automated Systems & Equipment, Inc., a custom machinery builder in Spartanburg, S.C., finds that pneumatic linear actuators provide a competitive edge for them over electric motors with rack-and-pinion drives on conveyor systems. They used rodles...
For more than 40 years, Marlen Reasearch, Overland Park, Kansas., has designed and built food-processing equipment. Today, at the heart of Marlen’s systems for moving food products is their patented, twin-piston, positive-displacement pump. Th...
General Foods coffee-grinding plant receives 180 tons of coffee beans daily from all the coffee-producing countires in the world. Raw coffee beans, packed in traditional burlap sacks, arrive in large containers. From these containers, the sacks a...
To lift and move stone slabs or metal sheets and plates, a vacuum attachment and framework built by Airlock Mfg. Co., Birmingham, mounts on the front of a forklift truck, replacing the forks. The model pictured can handle slabs weighing 650 lb...
Pressure decay circuit automatically reciprocates long-stroke rodless air cylinder. External yokes on DGO rodless cylinders are linked via powerful rare-earth magnets to internal air-driven pistons. Wet aluminum hydroxide sludge is a byproduct...
Steel mill conditions challenge workers and equipment Pouring molten metal from a ladle in a steel mill is dangerous work at best, but when a component in the metal-pouring system malfunctions, the results can be catastrophic — not to mention e...
