During CONEXPO-CON/AGG 2026, GOMACO debuted two new pieces of equipment — a new four-track combination slipform paver and placer/spreader transportable on one semi-tractor trailer, and a new paver for the ultra-thin overlay market.
The new GP348 four-track builds on GOMACO’s GP360 and GP460, the industry’s first combination concrete slipform pavers and placer/spreaders on two tracks. As a placer/spreader with a 48-inch belt, the GP348 places at widths up to 36 feet wide. As a concrete slipform paver, the GP348 paves widths up to 30 feet wide.
The GP348 is built on the framework of the GOMACO four-track GP3 slipform paver, with the ability to convert the prime mover into a concrete placer/spreader. The prime mover is equipped with vibrator circuits for paving and auger drive circuits for placing.
Controlling the new technology is made possible with GOMACO’s G+ digital control system. G+ seamlessly handles the controls conversion needed for each application while also bringing machine-to-machine (M2M) communication, sonic sensors, 3D machine guidance, and more.
Rotary-sensored slew drives on the leg pivots work seamlessly with the G+ control system. Operators can automate transitions from transport to paving mode, reducing setup time and improving efficiency. The GP348’s four-track design enhances stability and onsite maneuverability, while its compact transport footprint allows it to be hauled on a single semi-tractor trailer (either as a placer or paver), minimizing downtime between pours.
| Your local Trimble Construction Division dealer |
|---|
| SITECH Allegheny |
| SITECH Northeast |
| SITECH Allegheny |
| SITECH Northeast |
The GOMACO GP348 is powered by a Caterpillar C7.1 turbo-charged diesel engine, which efficiently drives the conveyor belt and distributes concrete across the grade. The high-volume, 48-inch conveyor belt can be mounted on either the left or right side, depending on job site conditions and the location of the haul road.
The machine has a discharge speed of up to 491.5 feet per minute. A controllable material deflector directs the flow of concrete at the discharge end of the conveyor for placement accuracy. A dual-drive auger system moves the material to the center or outer areas and across the strike-off.
The GP348 is available with an optional sonic sensor system to monitor the concrete depth as it is placed. Information from the sonic sensors is utilized by the G+ control system on the paver using M2M communication to provide an optimum and consistent head of concrete in front of the paver.
GOMACO’s new Polymer Paver can pave overlays on bridge decks and flat slabs in widths from 6 to 30 feet. The all-welded steel frame sections feature bolted connections, allowing easy width changes. The welded polymer paving pan sections are available in widths to match the frame sections.
| Your local Trimble Construction Division dealer |
|---|
| SITECH Allegheny |
| SITECH Northeast |
| SITECH Allegheny |
| SITECH Northeast |
Vibration is provided by sectional rotary eccentrics supported by ball bearings. The vibration is coordinated to start and stop with the machine movement. A dual-drive, 9-inch variable speed auger spreads the material ahead of the paving pan.
The Polymer Paver is powered by a 74-horsepower diesel engine, which eliminates the inconvenience and expense of diesel exhaust fluid. Four tracks allow for easy operation as well as loading and unloading. A four-bogie option allows for paving up against a barrier wall.
The Polymer Paver features GOMACO’s G+ control system for grade and steering. A 10-inch, full-color display gives the operator control over all paving machine functions. The tethered control display is magnetically mounted and can be positioned where the operator prefers for optimal visibility.
