UNAC-8TRR
2Pages

UNAC RAIL 8TRR ROAD-RAIL MINI-EXCAVATOR MANUFACTURER OF HEAVY DUTY TRENCHERS • FORESTRY MULCHING VEHICLES • MILITARY DOZERS • ROAD-RAIL SYSTEMS • SNOW CLEARERS Purpose The UNAC 8TRR mini-excavator can carry out lifting and earthwork operations on roads as well as on HST tracks, conventional tracks, and tram networks. Description The UNAC 8TRR is a self-propelled hy-rail mini-excavator with hydrostatic transmission. The 8TRR was inspired by a basic Caterpillar mini-excavator for which the boom kinematics were completely maintained, apart from railroad limitations. On the road, the mini-excavator has the same characteristics as a standard mini-excavator, except its stabilisation and backlling blade is retractable thanks to a quick mechanical attachment system. On rail-roads, the 8TRR moves at speeds of up to 20 km/h thanks to its rail-road lorries. The UNAC 8TRR mini-excavator has the following features: • A comfortable, hermetic, heated and airconditioned cab. • A caterpillar frame with rubber tracks that are controlled independently by levers inside the cab. • A single-block boom with boom leg rotation. The boom’s height is limited when working under high-voltage wires. • Two UNAC-HDX type lorries with a lifting system. • A turret rotation movement that can be restricted at two places in order to secure trafc on an adjacent lane. • A sophisticated UNAC-SMARTCS that includes a rear-view camera and operator indication system to receive real-time information concerning the machine, its load, and tilt, and to congure limits. Strenghts • Secured by electronic management for the boom kinematics (different catenaries’ heights) and for the rotation according to the work situations, backed up by mechanical safeties. • Ergonomic controls in a premium Caterpillar cab that combines comfort, soundproong, air conditioning, visibility. • Robust, reliable and easy maintenance. • Can work in either lane direction thanks to the turret’s full rotation and rear-view camera. • Caterpillar warranty ofcially maintained The excavator benets from the UNAC after-sales service and from Caterpillar’s dynamic after-sales network. • Maintains the original excavator’s lifting and earthwork capacities. The Rail/Road excavator can lift over 1 T up to 2.5 m from the centre of the track. The mini-excavator can thus lift very large loads in comparison to its size. • Very safe system, satisfying the most stringent rail-road standards, authorising work under live powerlines and leaving adjacent lanes open for incoming trafc. • Electric emergency pump included, allowing signicant autonomy in electric mode at about 80% lifting capacity and 20% kinematics. • Machine certied for circulation on the French network. • Caterpillar frame for easy manoeuvring with zero turning radius, making getting onto rails easy • Angle of attack for all-terrain transfer greater than 50°. • Very stable thanks to its very low centre of gravity. • Possibility of using the blade by installing it via the quick mechanical attachment directly on the lorry. • Boom kinematics providing great liberty with the possibility of making trenches parallel to the rail-road using the boom leg rotation. • Great digging depth, even from the railroad track. • Wide range of usable tools: auger, hydraulic rock breaker, buckets, hammers, universal pliers, hydraulic shears, mechanical pliers, compactor, clips with claws, loading bin, earthwork bin, and stripping beam. • Signicant digging depth. • Automatic selection of lorries while lifting or getting on rails. • Ultra-short rear radius to work in smaller zones such as tunnels. • Signicant rate of speed when on tracks. • Great acceleration and deceleration when on tracks to optimise time spent on work sites • Indication of lane inclination and load in real time. www.unac.fr Avenue de Camargue • Zone Industrielle B.P. 9 - 30310 VERGÈZE - FRANCE T. +33 (0)4 66 35 02 53 • F. +33 (0)4 66 35 09 32 • info@unac.fr

ROAD-RAIL MINI-EXCAVATOR 8TRR ENGINE - CATERPILLAR C2.4 Diesel - Gross horsepower 47.7 hp / 34.1 kW at 2,400 rpm ROAD TRANSMISSION - RAIL TRANSMISSION - Hydraulic, 4 wheel drive - An engine per iron tire: POCLAIN - Speed: 0 to 20km/h HYDRAULIC CIRCUIT - A load-sensing pump and piloting pump - Hydraulic tank: 68L, 95L circuit - Oil cooler STEERING - Hydraulic steering via 2 levers, 1 per track - Mini turning radius: 0m ACCESSIBLE ROAD-RAIL TRACK CHARACTERISTICS - Track spacing: 1,435mm - Maximum slope available: 35‰ - Maximum track inclination: 180mm BRAKING On rails, deceleration and...