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Gear extruder adds fine mesh straining capabilities.


A Roll-Ex gear extruder has expanded mill room operations for LMI LMI Labor Market Information
LMI Local Management Interface
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 Custom Mixing of Cambridge, OH. With the addition of the Roll-Ex, LMI has added capabilities for high-volume fine mesh rubber straining. The machine strains in-line an average of 1.5 metric tons (3,300 pounds) of rubber per hour, while reducing scrap and producing a higher quality rubber with minimal to zero defects "Zero Defects" is a notional quality standard developed by Phil Crosby. Although applicable to any type of enterprise, it has been primarily adopted within industry supply chains wherever large volumes of components are being purchased (common items such as nuts and bolts are good , according to according to
prep.
1. As stated or indicated by; on the authority of: according to historians.

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 the company.

With the Roll-Ex, LMI is able to process sulfur-cured dense and sponge compounds designed for continuous vulcanization vulcanization (vŭl'kənəzā`shən), treatment of rubber to give it certain qualities, e.g., strength, elasticity, and resistance to solvents, and to render it impervious to moderate heat and cold. , which are ordinarily very sensitive to heat. Prior to the Roll-Ex, LMI was limited to primarily masterbatch and peroxide-cured compounds.

A distinct advantage of the Roll-Ex design is said to be the two-roll feeder (TRF TRF

thyrotropin releasing factor.
) system that feeds the compound into the gear extruder/strainer section without requiring a screw extruder as a feeder. This feeding approach is said to eliminate extruder shear, reduce extrudate temperature and allow for higher output rates with highly accelerated compound formulations over conventional screw feed type systems. As an added benefit, the Roll-Ex is modular in design with a small footprint, which is said to make it ideal for mill room mixing or for use within a mixing line.

Other advantages are said to include a minimal dwell time The time cargo remains in a terminal's in-transit storage area while awaiting shipment by clearance transportation. See also storage. , low temperature increase and a hydraulic system which gives operators access to all major components. Rubber processors are also said to benefit from energy and cost savings gained from straining rubber in a warm state, and from the high viscosity and hardness characteristics achieved when straining compounds.

Davis-Standard

www.davis-standard.com
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Article Details
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Title Annotation:Case Studies
Publication:Rubber World
Date:Jun 22, 2007
Words:261
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