Remote Air Compressor
Onboard air powers pneumatic tooling at the jobsite, making tooth changes faster and reducing the need to bring a separate compressor into the work zone.
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Roadtec soil stabilizer / reclaimer
Roadtec SX-8 Soil Stabilizer / Reclaimer
The Roadtec SX-8 is the largest and most powerful stabilizer/reclaimer in the Astec Roadtec lineup, built for contractors who need high-production stabilization, pulverizing, and cold recycling capability.
Power
755 hp Cat C18
Cut width
100 in
Max cut depth
20 in
Shipping weight
85,000 lb
Where it fits
The largest Roadtec SX model, with 755 hp and a 100 in cut class for demanding reclamation work.
Astec positions the SX-8 as the largest and most powerful model in its stabilizer/reclaimer line. The spec sheet lists a 755 hp Caterpillar C18 engine, four-wheel drive, a 100 in standard cut width, and up to 20 in maximum cutting depth with the larger drum configuration.
Four cutting speeds, right-hand flush cut, and a heavy-duty self-propelled platform make the SX-8 the better fit when stabilization and reclamation work is production-critical.
Closner helps Texas contractors decide when the SX-8 is the right step up from the SX-6, including drum configuration, additive system needs, transport planning, and support after delivery.
Largest and most powerful Astec Roadtec stabilizer/reclaimer
755 hp Caterpillar C18 power package
100 in standard cutting width
Up to 20 in maximum cutting depth with 58 in drum
Four cutting speeds and right-hand flush cut
Four-wheel drive with four pumps
Feature details
Built for stabilization and reclamation work
Bi-Directional Travel
A rear control box lets the operator run the machine in reverse when the application calls for controlled backward operation or repositioning.
Sealed, Pressurized Cab
The enclosed cab is temperature-controlled and pressurized to help keep the operator protected from dust, weather, and jobsite noise.
Application-Specific Drums
Soil stabilization and asphalt reclamation drums let crews match cutter tooling and gradation to the material, depth, and production target.
Water & Emulsion System
The additive system gives operators control of water, emulsion, or foamed asphalt delivery with flow control and nozzle activation.
Guardian Telematics
Guardian telematics gives owners and service teams machine visibility, diagnostics, and support information from the field.
Technical specs
Engine
Caterpillar C18
Max power
755 hp at 1,900 rpm
Electrical system
24 V CAN-bus serial communication
Shipping weight
85,000 lb
Spec-sheet table; listed with fuel/water/injection system note.
Operating length
30 ft 10 in
Shipping width
10 ft
Shipping height
9 ft 10 in
Wheelbase
14 ft 5 in
Standard cut width
100 in
Maximum cut depth
20 in
Drum spacing
0.6 in and 0.875 in
Transmission
Four-speed manual
Propel
Two-speed hydrostatic, four-wheel drive with four pumps
Travel speed
0-6 mph
Work speed
266 fpm
Steering
Joystick; coordinated, crab, front-only, rear-only
Turning radius
14 ft in cut
Injection system
Water or emulsion up to 500 gpm
Fuel tank
320 gal
Hydraulic tank
62 gal
Air system
30 gal
Photos
SX-8 jobsite and detail views
What is the Roadtec SX-8 Soil Stabilizer/Reclaimer best used for?
High-production soil stabilization, pulverizing, cold recycling, full-depth reclamation, large county road programs, and contractors who need the highest horsepower Roadtec SX platform. Closner can help confirm whether the SX-8 fits your depth, binder, drum, production, and support requirements.
Who supports the SX-8 in Texas?
Closner Equipment supports Roadtec stabilizers/reclaimers in Texas with sales guidance, available inventory conversations, parts, tooling, and service coordination.
What is the Roadtec SX-8 best used for?
The Roadtec SX-8 is best for high-production soil stabilization, full-depth reclamation, pulverizing, asphalt reclamation, and cold recycling work where horsepower and production capacity matter.
How much horsepower does the SX-8 have?
The current Astec spec sheet lists the Roadtec SX-8 with a 755 hp Caterpillar C18 engine.
What is the cut width and maximum depth of the SX-8?
Astec lists the SX-8 with a 100 in standard cutting width and up to 20 in maximum cutting depth with the larger drum configuration.
Should I choose the SX-6 or SX-8?
Choose the SX-6 for a more mobile mid-size machine with strong 675 hp production. Choose the SX-8 when your work calls for the largest Roadtec stabilizer/reclaimer platform and 755 hp power.
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