AS4251

AS4251 Asphalt Screed. Ease of operation, high-efficiency screed plate heating systems, low-maintenance screed plates and superior serviceability are combined to provide a superior screed.


SPECIFICATIONS
Specifications
Heating system LPG & Electroc
Extension packages 0.25/0.71 m


Operating Specifications
Maximum Paving Width 25.72 ft
Standard Paving Width 8.37 ft
Minimum Paving Width 8.37 ft


BENEFITS & FEATURES
Features
The AS4251 features a double width hydraulic power extension. Standard paving range from 2550 mm to 5000 mm provides maximum flexibility and great performances on job sites.


Screed Plates
The screed plates incorporate a threaded bolt design that provide quick adjustment.


End Gates
The fixed (standard version) or hinge-mounted (optional) end gates create a downward force to help contain the asphalt and follow the profile of the surface being paved.


Patent Pending 3rd Joint Design
The 3rd joint design for double extending feature promotes stability and mat quality.


Extensions Configuration
Each mechanical extension is equipped with a tamper blade and a vibrator box, with the exception of the 250 mm extensions, providing torsional resistance, rigidity and fast paving width adjustment.


Screed Plate Heating Systems
The AS4251 offers an LPG screed plate heating system or an electric screed plate heating system. Both systems are highly efficient and provide fast warm-up. The LPG heating system features eight high-energy burners and optimum thermostatic temperature control. The electric heating system features a tractor-mounted generator, replaceable heating elements and operator friendly controls.


Generator System (Tractor Option)
The generator system supplies power to the optional electric screed heat providing high reliability.


Auxiliary Rear Control Panel (Tractor Option)
The right-hand auxiliary rear control panel provides full control for tamper and vibrators frequencies, screed assist & counterbalance adjustment and augers group raising/lowering.


Screed Control Panels
The modular patented main screed control panels are mounted on each side of the screed. The left and right control panels include extensions in-out, paving thickness control, augers & conveyor switches, adjusting working range potentiometer and emergency & horn buttons. The LPG screed heat control panel includes electronic ignition for smoothing plates and automatic temperature control. The electric screed heat control panel (tractor option) 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.



CONNECT. DISCUSS. SOLVE.
CATERPILLAR EQUIPMENT MAINTENANCE ONLINE COMMUNITY

LATEST POSTS FROM THE ONLINE COMMUNITY ...

Cat C7 Serpentine Belt Diagram
Have a freightliner with a Caterpillar C7 engine. Cannot find the belt diagram on the truck&nbs...  [More]

242D Engine Mounts
I need to replaced the engine mount bushings on my 242D but the bolts hit the fuel tank.I there a se...  [More]

Engine Shutdown Due To High Crankcase Pressure
How can i verify that theres actually a high pressure in crankcase? Before shutdown, MPD also diplay...  [More]

963 Ac Vaccum On Low Side
Long story short blew the low side hose going into the compressor two weeks ago replaced hose and en...  [More]
HOW CAN WE HELP?
SHARE YOUR FEEDBACK OR ASK A QUESTION
Feel free to ask a question or share a comment about the information on this page.

To help us answer your question or respond to your comment, please enter your email address.