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Model 406 is specifically designed for automated cleaning of 4 foam testing cylinders simultaneously. The cleaning process fully conforms to ASTM D892 and D6082 using the specified solvents and drying procedure. The automation of the foam test cylinder cleaning chore releases the operator to more productive activity.
The automated cleaning apparatus enclosed in a front opening cabinet consists of a holder for 4 foam test tubes that are inverted on it (after draining of the test oil). A powerful, air driven pump send a pulsating spray of solvents in the sequence as specified by the test methods (i.e., heptane, detergent water, distilled water, acetone, and finally drying air). The solvent spray impinges on the bottom of the test tube and then flows along the sides of the tubes for a total cleaning.
To conserve solvents a small amount of clean solvent is introduced into the cylinder and recirculated for an adjustable period of time. This is followed by a clean solvent rinse, and then proceeding to the next cleaning process.
The operation is controlled by a PLC and can be accessed by the operator via a touch panel screen. He/she can select (and store in memory) the times of each step of the sequence. This option gives the operator the flexibility to adjust the flow of each cleaning step to balance time and material use vs satisfactory cleaning.
The valves controlling the flow of materials are operated by non-sparking, low voltage solenoid valves. The PLC and all electrical components are in a separate, nitrogen purged cabinet. Although precautions have been taken to reduce the fire hazard of this apparatus, Model 406 is not explosion nor fire proof.
The solvents are contained within test tube and plumbing. This closed system keeps the operator from exposure to the solvents.
Each test position has a manual shutoff valve, thus allowing the cleaning of less than 4 tubes at a time.
The dimensions of the model are 31" x 15" x 35" high.
Specifications are subject to change without notice. |
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