mark series extruder - Adams Engineers and Equipment, Inc.

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
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
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
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
• 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
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
Technology Center
Feedscrews manufactured from a variety of metals for corrosion and wear resistance.
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.
MARK SERIES EXTRUDER SPECIFICATIONS
2 inch
(50mm)
Extruder Size
L/D Ratio
2 ½ inch
(65mm)
24:1
Reduction Ratio
30:1
24:1
3 inch
(75mm)
30:1
24:1
3 ½ inch
(90mm)
30:1
24:1
30:1
17.56:1
17.26:1
17.26:1
17.39:1
50
160
160
255
Thrust Bearing L10 Life @
100 RPM, 5000 PSI Cont.
Operation
398,000
544,000
179,000
421,000
Max. Internal Barrel
Pressure (PSI)
10,000
10,000
10,000
10,000
AGMA hp Rating@
100 RPM @ 1.25 S.F.
Heat Zone Data
Barrel Zones
3
4
Die Zones
4
5
2
5
6
2
4
5
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)
9,300 lbs.
(4218 kgs)
A
42.50 in. (1080mm)
50.00 in. (1270mm)
50.00 in. (1270mm)
56.00 in. (1422mm)
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)
Mark V®
Note: B dimension includes line choke for standard drive size horsepower.
Deviation from standard drive size horsepowers shown may change height.
6.25 in.
(159mm)
8.62 in.
(219mm)
11.12 in.
(283mm)
Mark VI®
11.12 in.
(283mm)
11.12 in.
(283mm)
10.31 in.
(262mm)
12.62 in.
(320mm)
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
© 2007 Davis-Standard, LLC. All Rights Reserved.
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
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Somerville, NJ 08876-0671
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