Page 1
AS2252C
Vers-A-Mat™
Asphalt Screed
AS2252C Vers-A-Mat™ Screed
Weight 2721 kg (6,000 lb)
Standard Paving Width 2.5 m (8' 2")
Paving Ranges:
hydraulically extendible 2.5 - 4.4 m (8' 2" - 14' 5")
maximum w/bolt-on extensions 5.6 m (18' 5")
Page 2
Versatility and Productivity Provided in a Multipurpose Screed
The AS2252C Vers-A-Mat™ asphalt screed offers narrow, front-mounted extenders that
simplify paving width adjustment and minimize handwork.
Front-Mounted Extenders
The Vers-A-Mat™ screeds utilize
extenders that are mounted in front of
the main screed plates. This location
allows the extenders to draw in the
asphalt mix, minimizing handwork
when changing paving widths.
Page 4
Hydraulically-Driven Vibrators
Hydraulically-driven vibrators located
on the main screed and on the extenders
provide pre-compaction. The vibrator
speed can be easily adjusted to match
mix type.
Screed Plates
The curved nose design on the screed
plates provide pre-compaction and
good material flow. The narrow screed
plates on the extenders offer good
material control when paving variable
widths. The threaded-bolt adjusters
offer quick adjustment to ensure screed
plate flatness.
Page 4
End Gates
The end gates feature a spring-loaded
false-wall design that provides easy
gate adjustment. Dual-bolt guides allow
the sliding portion of the gate to move
vertically when making adjustments.
The sliding portion of the gate provides
a downward force in order to contain
the asphalt mix.
Page 5
Caterpillar®Dealer Support is the
Leader in the Industry
Cat®Dealers highly value their customers
and offer the very best dealer support,
parts support and service training
in the industry.
2
Page 3
Electric Heat and Easy to Use Features Increase Operator Comfort
The AS2252C Vers-A-Mat™ asphalt screed with electrically heated screed plates integrates
an ergonomic control switch layout, and remote-mounted controls on the extenders.
Screed Controls
The main screed control panels are mounted on each side of the screed. The layout
of each control panel promotes productivity and allows the screed operators to
quickly make the necessary adjustments to the mat.
An adjustable wrist rest mounted on each screed control panel provides operator
comfort and reduces fatigue.
The electric screed heat control panel utilizes touchpad technology for simplified
operation and backlit LEDs provide easy recognition in order to create a
user-friendly operating environment. The panel includes on/off heat control switch,
three pre-set temperature settings for each screed section, fault indicators and
manual overrides for each screed plate section.
Page 5
Serviceability
The AS2252C screed has been
designed for easy service and
maintenance. Access to components
such as screed plate adjusters, slope
stops, wiring harnesses, hydraulic lines
and grease fittings make service quick
and efficient. A tool box located near
each main screed control provides
storage for necessary items.
A shovel holder is conveniently located
on each side of the main screed for
easy access.
Page 6
Caterpillar offers “Solutions and Services” to
meet the contractors everyday needs.
Caterpillar helps contractors take risk and variability
out of projects in order to improve ride quality and
increase profitability. Contact your Cat
Dealer today for more information.
3
Page 4
Narrow Front-Mounted Extenders
The narrow front-mounted extenders provide even material flow and reduced handwork
when paving near curbs and around obstacles.
Narrow Front-Mounted Extenders
The extenders are mounted in front of
the main screed plates. This forward
location allows the extenders to easily
draw in material when paving around
obstacles.
Remote Extender Controls
The remote extender control allows the
operator to adjust paving width, tow
point and material flow from the end of
the extender.
Versatility
The small footprint of the screed limits
handwork when paving in tight
locations. Quick reacting extenders and
exceptional mat quality allows the
screed to be used in commercial and
highway applications.
Power Berm (Optional)
The power berm creates a 305 mm
(12") or 457 mm (18") wide berm. The
berm height is hydraulically adjustable
and provides a maximum end berm
height of 152 mm (6").
Extender
Controls
Power Berm
Screed Plates
The industry-leading electric heating system delivers tight textures for high-quality mats
and a long service life.
Screed Plates
The screed plates are constructed of an
abrasion resistant alloy steel and utilize a
curved nose design that provides
pre-compaction and good material flow.
Hydraulically-Driven Vibrators
Hydraulically-driven vibrators mounted
on the main screed and extenders
increase mix density under the screed.
Electric Heating Elements
The heating elements are located in each
screed plate section to provide even heat
distribution. The heating elements are
reusable and can be easily removed and
installed on new screed plates.
Uniform Heating
The heating elements provide uniform
heat distribution over the entire screed
plate for reliable operation.
Main Screed Plate
457 mm (18")
Extender Screed Plate
229 mm (9")
Thermal Image Shows
Uniform Heat Distribution
4
Page 5
End Gates
Easy-grip handles and dual-bolt guides provide smooth height adjustments to ensure good
joint-matching capabilities.
Spring-Loaded End Gates
The spring-loaded end gates create a
downward force that causes the gates to
follow the profile of the surface being
paved, ensuring a good joint with the
adjacent mat.
False-Wall Design
The false-wall design reduces mix
contact with the sliding portion of the
gate, providing easy gate adjustments.
Bolt-on Design
The bolt-on design allows easy end
gate installation and removal when
transportation concerns exist.
Foldable Handles
Foldable handles located on the end
gate height adjustments allow them to
be fully retracted for working close to
barriers.
Dual-Bolt Guides
The dual-bolt guides allow smooth
vertical movements and eliminate
retention chains
Foldable
Handles
Dual-Bolt
Guides
False Wall
Design
Control Panels
A state-of-the-art electric heating system with easy-to-use controls that are located in the
right place, allow the operator to make quick adjustments.
Conveniently Located Controls
The screed controls are conveniently
located and easily recognizable to
provide efficient operation.
Electric Heat Control Panel
The electric heat control panel includes
three temperature settings that are able
to accommodate a variety of asphalt
mixes and paving conditions.
Electric Heat Controller
An electric heat controller
automatically regulates screed plate
temperatures to the selected setting.
The controller requires minimal
training in order to assist
troubleshooting procedures.
Adjustable Wrist Rest
An adjustable wrist rest located on each
screed control panel provides operator
comfort when making screed
adjustments.
Electric Heat
Control Panel
Main Screed
Controls
5
Page 6
Serviceability
R
The CANbus electrical system and easy access to the screed plate adjusters enables quick
service.
Quick Screed Plate Adjustment
The threaded-bolt design located on the
front and rear edge of the screed plates
eliminate shims to provide quick
replacement and leveling.
Replaceable Wear Strips
The wear strips located on the bottom
of the end gate can be easily replaced in
order to extend service life.
CANbus Interface
The CANbus electrical system on the
screed provides an interface with the
Advisor display on the tractor for
simplified diagnostics. The screed
functions are hard-wired and
compatible with Cat ET.
Color-Coded Electrical Wiring
Cat®electrical harnesses utilize a kevlar
braid and nylon mounting blocks to
protect against abrasion. The wires are
color-coded and numbered for easy
reference.
Protected
Electrical
System
Screed Plate
Adjusters
Quick
Replacement and
Leveling System
Dimensions
AS2252C Screed
A Length with end gates (front to rear) 2.06 m (6' 9")
B Length without end gates (front to rear) 1.3 m (4' 4")
C Width with end gates 2.76 m (9')
D Width without end gates 2.74 m (8' 11")
E Main screed plate width (front to back) 457 mm (18")
F Extender screed plate width (front to back) 229 mm (9")
G Height 1.4 m (4' 7")
H Walkway width (main) 476 mm (18.75")
D
C
Weights
AS2252C Screed 2721 kg (6,000 lb)
305 mm (12") Extension 45 kg (100 lb)
610 mm (24") Extension 84 kg (185 lb)
G
H
F
E
B
A
6
AS2252C specifications
Page 7
Optional Equipment
Power Berm
The power berm creates a 305 mm (12")
or 457 mm (18") wide berm. The berm
height is hydraulically adjustable and
provides a maximum end berm height
of 152 mm (6").
Screed Extensions
Extensions are available in 305 mm
(12") and 610 mm (24") widths.
Wide Width Paving Packages
Paving packages are available in 5.0 m
(16' 5") and 5.6 m (18' 5") widths.
Cutoff Shoe
The cut-off shoe reduces the standard
paving width from 2.5 m (8' 2") down
to 1.90 m (6' 2").
Screed Plates
The screed plates are 13 mm (0.5")
thick. Main screed plate width,
measured front to back, is 457 mm
(18") and the extender screed plates
measure 229 mm (9"). Main and
extender screed plates are constructed of
Hardox 500 XF alloy steel that resists
abrasion and extends wear life.
Heavy-duty mounting platforms provide
rigid support for the screed plates,
simplifying leveling procedures.
Screed plate leveling is quick and
convenient with the threaded-bolt
adjustment system. The bolts thread into
large nuts welded onto the underside of
the screed frame. The hardware is plated
to provide extra corrosion resistance.
Extender Configuration
Two hydraulically driven extenders
infinitely vary screed width within the
paving range. The extenders are
positioned in front of the main screed.
The front-mounted extenders are
supported by two 51 mm (2") diameter
extendable tubes that provide torsional
resistance and rigidity.
Extender width changes can be made
from the tractor, main screed or
remote-mounted control panels. The
remote-mounted control panels are
positioned at the end of each extender.
Extenders are equipped with vibrators
and heaters that are separate from the
main screed. Vibrator motors and shafts
are hydraulically driven. Frequency and
amplitude are synchronized with main
screed vibrators.
Screed Controls
The controls are logically grouped
providing easy operation. Main control
consoles are mounted on each side of
the screed and include a wrist rest. They
contain all electrically actuated controls.
The electric screed control console is
mounted on the left side of the screed
near the center walkway. The electric
heat screed control panel includes a
touch pad with high intensity LEDs for
simplified use.
Remote-mounted control panels are
mounted on the outboard side of each
extender. They contain switches for the
extender width, tow point height and the
feeder system.
Hydraulic System
The extenders are hydraulically
controlled with electric-over-hydraulic
components. The tractor supplies
hydraulic flow.
Hydraulic connections have O-ring face
seal (ORFS) fittings and straight-thread
O-ring (STOR) couplings to provide
maximum protection against hydraulic
system leaks. High-pressure Cat XT
hoses provide an extended service life.
Power Controls
Standard power controls for crown,
height and slope provide the operator
with complete fingertip control.
The crown adjustment is made with a
switch in the right control panel. Crown
range is from +10% to -3%.
The height adjustment allows each
extender to match the mat thickness
being placed by the main screed.
Indicators show the amount of
adjustment in 6.4 mm (0.25")
increments.
Each extender can be sloped during
operation from +10% to -3%. Indicators
show the percent of slope.
Electrical System
The electrical system is 24-volts to
match the tractor. Integrity of the
electrical system on Cat®machines is
ensured with the use of high-quality
components. The Caterpillar electrical
standards, developed to enhance
reliability and durability, feature
soldered, molded, numbered and
color-coded wires with nylon-braided
wrap to protect the electrical harness.
End Gates
End gates are 1 m (3' 3") long, helping
contain material and providing an
optimal longitudinal joint. The end gates
are spring-loaded, creating an adjustable
downward force that allows them to
follow the profile of the surface being
paved. The spring-loaded design also
creates a contained joint with the
adjacent mat.
Thickness Screws
Thickness control screws with spinner
handles are located on the outboard side
of each control console. The thickness
screws control the paving depth. Two
thread configurations are available
including; Acme clockwise and Acme
counterclockwise with 25.4 mm
(1") - 8 tpi fine threads. A spherical
bearing located on the drop arm pivot
reduces friction for easy adjustment.
Vibrator System
The main screed and extenders are
equipped with a vibrator system that
provides initial compaction. Vibrator
speed is adjustable from 0 to 50 Hz
(0-3,000 vpm).
AS2252C specifications
7
Page 8
AS3251C Extend-A-Mat®Asphalt Screed
The AS3251C is a 2.44 m (8') screed that features rear-mounted extenders and utilizes a
CANbus electrical system. The CANbus electrical system is only compatible with the
AP600D and AP655D.
AS3251C Extend-A-Mat with Rear-Mounted Extenders
Operating weight 2925 kg 6,450 lb
Standard paving width 2.44 m 8'
Paving Ranges
hydraulically extendible 2.44 - 4.75 m 8' - 15' 6"
maximum with bolt-on extensions 6.15 m 20' 2"
minimum with cut-off shoes 1.83 m 6'
For more complete information on Cat®Products, dealer services, and industry solutions, visit us on the web at www.cat.com. Materials
and specifications are subject to change without notice. Featured machines in photos may include additional equipment. See your
Caterpillar
dress, as well as corporate and product identity used herein , are trademarks of Caterpillar and may not be used without permission.
QEHQ1353 (1/08)
®
dealer for available options. CAT, CATERPILLAR, their respective logos, “Caterpillar Yellow” and the POWER EDGE trade
© 2008 Caterpillar
All Rights Reserved
Loading...