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Cat pounces on electrohydraulics

Generic Valve Driver software from Caterpillar Electronics makes it easy to use Cat's electronic controls that are made for mobile equipment — such as this ladle carrier manufactured by Kress Corp. and used in a steel mill — with valves...
Mar. 20, 2007 | http://hydraulicspneumatics.com/200/TechZone/HydraulicValves/Article/False/46091/TechZone-HydraulicValves
Article

Pump control vs valve control: Efficiency or performance?

A flying cutoff requires accelerating a knife to the same speed of a moving workpiece, then actuating a knife to cut the moving material at a specific location. Because the work material moves at a constant speed, the process is much more...
Mar. 20, 2007 | http://hydraulicspneumatics.com/200/TechZone/HydraulicPumpsM/Article/False/46094/TechZone-HydraulicPumpsM
Article

Get That Red Out

Don't assume that old red rubber hose is necessarily the best choice for your air system. A look at how to select hose and tubing...
Mar. 20, 2007 | http://hydraulicspneumatics.com/200/IndZone/Packaging/Article/False/46080/IndZone-Packaging
Article

Between gears and pistons

Alternative designs, such as internal gear pumps, can serve applications that demand more than what external gear pumps can deliver without the expense of axial-piston pumps...
Mar. 20, 2007 | http://hydraulicspneumatics.com/200/TechZone/HydraulicPumpsM/Article/False/46088/TechZone-HydraulicPumpsM
Article

Techniques for Building Quiet Hydraulic Systems

Designing quiet fluid power is fast becoming a must-have skill...
Mar. 20, 2007 | http://hydraulicspneumatics.com/200/TechZone/HydraulicPumpsM/Article/False/46097/TechZone-HydraulicPumpsM
Article

Direct displacement control pump

DDC pump reducesinstallation time, increases machine life, adds extraflexibility to vehicle design process, and lowers noiselevels. Built-in neutral return mechanism is placed inside pump, saving space and reducing contamination risk. It offers three...
Mar. 20, 2007 | http://hydraulicspneumatics.com/200/TechZone/HydraulicPumpsM/Article/False/46117/TechZone-HydraulicPumpsM
Article

Bolt-together pumps

Single- and two-stage hand- or foot-operated pumps can be incorporated, as standardtandem pumps with reservoirs. They feature a bolt-together, steel modular construction and operate at pressures to 10,000 psi and displacements to 2.1 in.3 per stroke...
Mar. 20, 2007 | http://hydraulicspneumatics.com/200/TechZone/HydraulicPumpsM/Article/False/46116/TechZone-HydraulicPumpsM
Article

Variable volume piston pumps

PCP4-47 piston pumps are pressure-compensated with avariable-volume design. They reduce heat, noise, and power needs, and are rated for flows from 3.8 to 47 gpm at 1800 rpm. They maintain constant pressure while matching system flow demands...
Mar. 20, 2007 | http://hydraulicspneumatics.com/200/TechZone/HydraulicPumpsM/Article/False/46125/TechZone-HydraulicPumpsM
Article

Solenoid valves

Series 3923 solenoid valves have stackable composite bodies to allow mixing and matching with single inlet and multiple outlets. Fully encapsulated coils, spring compensated plunger seats, and composite body provide long life. They are available...
Mar. 20, 2007 | http://hydraulicspneumatics.com/200/TechZone/HydraulicValves/Article/False/46111/TechZone-HydraulicValves
Article

Differential pressure gauge

Model 124 differential pressure gauge has working pressures of 10,000 psi and proof pressure of 20,000 psi. It is available with 316/316L stainlesssteel body, 316 stainless-steel springs and internal parts, as well as many elastomers. It is...
Mar. 20, 2007 | http://hydraulicspneumatics.com/200/TechZone/SystemInstrumen/Article/False/46101/TechZone-SystemInstrumen
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