Core Equipment Specifications for the Roadtec SB-2500 Shuttle Buggy Material Transfer Vehicle

Focusing on the widely referenced SB-2500B/D configuration

Power and Drive

• Engine: John Deere 6081 AF 6-cylinder diesel (older SB-2500B) or CAT C9 6-cylinder diesel (SB-2500D), approximately 275–300 hp around 1,900–2,200 rpm.
• Ground drive: Hydrostatic drive with two speed ranges (work and travel), infinitely variable.
• Travel speeds: Up to about 3.0 mph (4.8 km/h) in working range and 9 mph (14.5 km/h) in travel range.

Material Capacity and Throughput

• Surge hopper capacity: 25 tons (22.7 metric tons) of hot-mix asphalt, based on material density around 120 lb/ft³ (1,922 kg/m³).
• Truck unloading conveyor (C-1): Capacity rated at 1,000 tons per hour (approximately 907 metric tons per hour).
• Surge bin (C-2) and paver loading conveyor (C-3): Capacity rated around 600 tons per hour (approximately 544 metric tons per hour).

Conveyors and Hopper

• C-1 truck unloading conveyor: Low deck-height front hopper with converging Ni-Hard auger and slat conveyor; approximately 9 ft 2 in (2.8 m) side truck opening.
• C-2 surge bin: Anti-segregation multi-pitch or triple-pitch auger in the bin floor, Ni-Hard liners, slat conveyor feeding C-3.
• C-3 paver loading conveyor: Swings approximately 55° to either side of center, maximum discharge height roughly 12 ft 2–6 in (approximately 3.7–3.8 m) from ground.
• Hopper insert: Mass-flow paver hopper insert available to increase paver hopper capacity when used with the Shuttle Buggy.

Dimensions and Weights

Exact dimensions vary by series and variant, but commonly cited values for SB-2500B/D.

• Shipping weight: Approximately 74,500–79,300 lb (about 33,790–35,970 kg).
• Tires: 21.00 × 25 high-flotation tires on 25 × 15 rims.
• Turning radius: Inside radius around 26 ft 6 in (approximately 8.1 m); newer Astec literature cites coordinated steering down to about 14 ft 9 in.

Operator and Systems

• Operator’s station: Dual operator positions (left and right) with pivoting control panel and hydraulically raisable platform for service access.
• Steering: Four steering modes on current models (front, rear, coordinated, crab) for tight maneuvering in paving trains.
• Fume extraction: Twin blowers with fold-down exhaust stacks (for example 10 in / 254 mm) to draw fumes away from the operator area.
• Electrical system: Heavy-duty alternator, batteries, and circuit-breaker protected circuits.

Disclaimer:

We provide these specification details for general reference only. Actual specifications may vary based on the country of manufacture, specific sub-model, and installed options. You should verify all technical information and features with the manufacturer or your local dealer before making a purchase or rental decision. We assume no liability for any inaccuracies or omissions in this information.