Hydraulicspneumatics Com Sites Hydraulicspneumatics com Files Uploads Custom Inline Archive Www hydraulicspneumatics com Content Site200 Articles 04 01 1993 85194 Pressurede 00000057516
Hydraulicspneumatics Com Sites Hydraulicspneumatics com Files Uploads Custom Inline Archive Www hydraulicspneumatics com Content Site200 Articles 04 01 1993 85194 Pressurede 00000057516
Hydraulicspneumatics Com Sites Hydraulicspneumatics com Files Uploads Custom Inline Archive Www hydraulicspneumatics com Content Site200 Articles 04 01 1993 85194 Pressurede 00000057516
Hydraulicspneumatics Com Sites Hydraulicspneumatics com Files Uploads Custom Inline Archive Www hydraulicspneumatics com Content Site200 Articles 04 01 1993 85194 Pressurede 00000057516
Hydraulicspneumatics Com Sites Hydraulicspneumatics com Files Uploads Custom Inline Archive Www hydraulicspneumatics com Content Site200 Articles 04 01 1993 85194 Pressurede 00000057516

Rodless cylinder takes over sludge-raking chore

April 1, 1993
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 ...
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 of our anodizing process. After drying, we dump the sludge in a bin from which it is eventually hauled away for disposal. To reduce the volume — and thus the hauling charges — we had been raking the material manually, but because the sludge is usually hot and frequently fuming, this was an unpleasant and laborious chore.

A few years ago we eliminated the human factor with an automated system that uses a DGO rodless pneumatic cylinder from Festo Corp., Hauppauge, N.Y., to power the rake. The 12-ftstroke cylinder mounts on a framework along the longer side of the rectangular bin and is reciprocated by a simple pressure- decay air circuit. The rake is attached to a swing arm mounted on the cylinder’s yoke. After we learned that the circuit performs best when the 4- way valve exhaust ports are choked to provide sufficient backpressure, the system has run without problems.

Matthew Chan
Dan Martina
Kawneer Co. Canada Ltd.
Scarborough, Ontario

Continue Reading

Kits Turn CPAP/BiPAP Machines into Ventilators for COVID-19 Patients

April 27, 2020
One hundred of these kits have already been distributed to New Mexico hospitals.

Motor leakage variations

Oct. 18, 2006
affect low-speed performance

Sponsored Recommendations

7 Key Considerations for Selecting a Medical Pump

Feb. 6, 2024
Newcomers to medical device design may think pressure and flow rate are sufficient parameters whenselecting a pump. While this may be true in some industrial applications, medical...

How Variable Volume Pumps Work

Feb. 6, 2024
Variable volume pumps, also known as precision dispense pumps, are a positive displacement pump that operates by retracting a piston to aspirate a fluid and then extending the...

What is a Check Valve and How Does it Work?

Feb. 6, 2024
Acheck valve, a non-return or one-way valve, is a mechanical device that allows a gas or liquid to flow freely in one direction while preventing reverse flow in the opposite ...

The Difference Between Calibrated Orifices and Holes

Feb. 6, 2024
Engineers tasked with managing fluid flow talk about both holes and calibrated orifices, but they are two distinct entities. A hole can be any opening, but a calibrated orifice...