MARK SERIES EXTRUDER

MARK SERIES EXTRUDER

Davis-Standard s Mark extruder is built for all applications and value engineered to meet demanding requirements. The Mark is available with a wide range of feedscrews and control systems, and in sizes ranging from 2 inch to 3 1/2 inch (50mm to 90mm) with L/Ds ranging from 24:1 to 30:1. Design Advantages Every component on the Mark is engineered for quality and efficiency. This high-output extruder features many advantages such as two-bolt pivot designed motor mounting, an inverted L-style panel, and a three-phase blower system to provide processors with a value-added extruder that delivers on price and performance.

AIR COOLING SYSTEM High capacity, 3-phase blowers Air flow directed away from operator and OCS Bolt-on cast aluminum finned heaters BARREL Designed for 10,000 psi operating pressure Removable front barrel flange Integral breaker plate recess One-piece bimetallic cast-in liner Rupture disc behind front flange BASE Rigid design Structural steel channel and plate construction Integral leveling plates PANEL New Inverted-L style Lower OCS height Circuit breakers and solid state contactors used throughout Integral transformers included Integral plug plate HEAD CLAMP Heater retainers Single swing bolt design Optional die support hinge BARREL SUPPORT Rigid design Adjustable Full surround barrel support Barrel expansion is in machine direction SEAL ARRANGEMENT Integral lip seal Optional labyrinth seal for forced lubrication DRIVE MOTOR MOUNTING 2-bolt pivot design Easy belt tension adjustment SPACER FEED SECTION High strength casting cored for cooling Large feed opening Large water cooling cavity HOPPER New sealed dump valve Stainless steel construction Slide gate and sight glasses GEAR DRIVE Specifically designed by Davis-Standard for extruder applications Heavy wall, 2-piece iron housing Splash or optional force lubrication All gearing is single helical AGMA quality class 11 or better All shafts are supported on single row, tapered roller bearings High capacity cylindrical roller thrust bearing mounted in integral thrust housing

Feedscrew Technology and Service Davis-Standard, LLC operates a fully-staffed technology center in the United States with single and twin screw extruders available for product development, screw rheology, and control technology. We work to supply equipment On Time, Every Time by meeting our customers needs with shorter cycle times, on-time deliveries, and continuous process improvement. A reliable and vast network of suppliers helps ensure quality equipment while keeping our pricing competitive. R&D CAPABILITIES Research and development center in the United States enables us to research, test, and supply custom feedscrew designs. QUALITY MATERIALS Feedscrews manufactured from a variety of metals for corrosion and wear resistance. Technology Center SCREWS FOR EVERY APPLICATION Screw sizes range from 3/4 inch (20mm) to 12 inches (305mm) for single screw, 40mm to 140mm for counter-rotating twin screw, and 32mm to 130mm for co-rotating fully intermeshing twin screw extruders. Screws, including smooth and groove feed designs, can be customized for specific applications. PROVEN TECHNOLOGY Our DSB and DSBM-T barrier screw technologies are known worldwide for consistently higher output rates, process stability, venting and devolatilization capabilities, distributive and dispersive mixing properties, and minimized polymer degradation. Get to Know Us Davis-Standard has set the standard in extrusion equipment. We hope you will take the time to get to know us. Our capabilities go far beyond our equipment. They extend to our professional training experts, laboratory personnel, design engineers, and hands-on field engineers who will work with you every step of the way.

Extruder Size 2 inch (50mm) MARK SERIES EXTRUDER SPECIFICATIONS 2 ½ inch (65mm) 3 inch (75mm) 3 ½ inch (90mm) L/D Ratio 24:1 30:1 24:1 30:1 24:1 30:1 24:1 30:1 Reduction Ratio 17.56:1 17.26:1 17.26:1 17.39:1 AGMA hp Rating@ 100 RPM @ 1.25 S.F. Thrust Bearing L10 Life @ 100 RPM, 5000 PSI Cont. Operation Max. Internal Barrel Pressure (PSI) 50 160 160 255 398,000 544,000 179,000 421,000 10,000 10,000 10,000 10,000 Heat Zone Data Barrel Zones 3 4 4 5 5 6 4 5 Die Zones 2 2 2 2 KW/Die Zone 2 2 2 2 Heater Voltage 230/460 230/460 230/460 230/460 Approximate Weight 3,900 lbs. (1770 kgs) 4,200 lbs. (1905 kgs) 5,700 lbs. (2585 kgs) 6,000 lbs. (2720 kgs) 6,000 lbs. (2720 kgs) 6,300 lbs. (2858 kgs) 8,900 lbs. (4037 kgs) A 42.50 in. (1080mm) 50.00 in. (1270mm) 50.00 in. (1270mm) 56.00 in. (1422mm) 9,300 lbs. (4218 kgs) B 91.13 in. (2315mm) 95.25 in. (2420mm) 95.25 in. (2420mm) 95.25 in. (2420mm) C 75.25 in. (1911mm) 86.06 in. (2186mm) 96.30 in. (2446mm) 107.18 in. (2722mm) 110.50 in. (2807mm) 124.25 in. (3156mm) 131.31 in. (3335mm) 147.50 in. (3747mm) D 73.06 in. (1856mm) 75.38 in. (1915mm) 75.50 in. (1918mm) 78.88 in. (2004mm) E 9.50 in. (241mm) 12.00 in. (305mm) 12.00 in. (305mm) 12.00 in. (305mm) F 6.25 in. (159mm) 6.25 in. (159mm) 8.62 in. (219mm) 11.12 in. (283mm) 11.12 in. (283mm) 11.12 in. (283mm) 10.31 in. (262mm) 12.62 in. (320mm) Mark V Mark VI Note: B dimension includes line choke for standard drive size horsepower. Deviation from standard drive size horsepowers shown may change height.

Davis-Standard Business Areas Aftermarket Services Blow Molding Systems Blown Film Systems Cast Film Systems Compounding Systems Elastomer Systems Extrusion Coating and Laminating Systems Fiber Systems Foam Systems Laboratory Equipment and Specialty Systems Liquid Coating and Laminating Systems Pelletizing Systems Pipe, Profile and Tubing Systems Process Control Systems Recycle/Reclaim Systems Sheet Systems Twin Screw Systems Unwinding and Winding Systems Wire and Cable Systems #1 Extrusion Drive Pawcatuck, CT 06379-2313 USA Tel: +860-599-1010 Fax: +860-599-6258 www.davis-standard.com Room 1007, Jing An China Tower 1701 Beijing (W) Road Shanghai 200042 P.R. CHINA Tel: +86-21-5150 1908 Fax: +86-21-5150 1906 www.davis-standard.com Unit 33 Hainge Road Tividale, Oldbury, West Midlands B69 2NY UNITED KINGDOM Tel: +44-121-522-0030 Fax: +44-121-522-0031 www.davis-standard.com 46 North First Street Fulton, NY 13069-1297 USA Tel: +315-598-7121 Fax: +315-593-0396 www.bc-egan.com 36 South Adamsville Road Somerville, NJ 08876-0671 USA Tel: +908-722-6000 Fax: +908-722-6444 www.bc-egan.com Mettmanner Strasse 51 D-40699 Erkrath/Düsseldorf GERMANY Tel: +49-211-2404-0 Fax: +49-211-2404-281 www.er-we-pa.de 2007 Davis-Standard, LLC. All Rights Reserved. JWRP5K1007