2.8 Ton Mini Excavator
The design of the RT28 aims to maximize versatility in confined spaces. Equipped with a swing boom and a retractable chassis, the machine offers exceptional flexibility, easily passing through narrow doorways while maintaining a stable footprint. It delivers reliable traction and smooth rotation on any terrain.
The Derette RT28 2.8 Ton Small Crawler Excavator is designed for buyers seeking a compact crawler excavator with a defined 2.8-ton operating class, flexible access configuration, and practical excavation capability. With an operating weight of 2,800 kg / 6,173 lb, the RT28 is positioned for construction, road work, landscaping, farm and orchard maintenance, and other suitable site-support applications.
The RT28 uses a Yanmar 3TNV80F engine rated at 15.2 kW / 20.4 hp. Its specified working range includes a maximum digging height of 4,370 mm / 172.05 in, maximum dumping height of 3,060 mm / 120.47 in, maximum digging depth of 2,590 mm / 101.97 in, and maximum digging radius of 4,520 mm / 177.95 in.
For projects where access and maneuverability matter, the RT28 combines a retractable undercarriage from 1,300 to 1,500 mm, a zero-tail swing design, swing boom, and 300 mm rubber tracks. These features give distributors and contractors a clear basis for discussing the machine’s fit with different worksites. Final suitability should be confirmed against the site, operating method, attachment, and applicable instructions.
Core Product Highlights
Work in More Confined Access Conditions
The retractable undercarriage can be configured from 1,300 to 1,500 mm, subject to the selected machine configuration. This allows buyers to discuss access requirements for residential, landscaping, agricultural, and construction environments where available working width is an important consideration.
Use Zero-Tail Swing for Maneuverability
The RT28 features zero-tail swing, a design consideration for work areas where rear overhang and machine positioning require careful planning. Operators should evaluate the complete worksite, including obstacles, slopes, utilities, and safe clearance requirements.
Combine Swing Boom Flexibility with Compact Excavation
The swing boom supports a flexible approach to digging and positioning in suitable work areas. It can be considered for applications where the excavation path or working position requires additional boom positioning flexibility. Specific working methods remain dependent on the selected configuration and site conditions.
Operate on Rubber Tracks
The RT28 uses 300 mm rubber tracks. The tracked undercarriage supports the machine’s compact crawler excavator format and should be evaluated according to ground conditions, travel paths, loading requirements, and the operating instructions.
Support Operator Protection and Control
The product configuration includes a 4-pillar ROPS/FOPS structure and a pilot safety lock. These features should be used together with the applicable operator manual, site safety procedures, inspection requirements, and local regulations.
Simplify Attachment Changes
The RT28 is described with quick attachment change capability. Before purchase, buyers should confirm the specific attachment interface, compatible tools, hydraulic requirements, and operating limits for the selected configuration.
Typical Application Areas
Construction and Road Work
The RT28 can support suitable excavation, trenching, grading, utility, and road-maintenance tasks. Its operating weight, bucket capacity, working range, and tracked format provide defined information for project and equipment planning.
Landscaping and Property Projects
The compact format, retractable undercarriage, swing boom, and zero-tail swing make the RT28 relevant for suitable landscaping, grounds preparation, drainage, and property-maintenance applications. Site access, terrain, and attachment requirements should be reviewed before ordering.
Farm and Orchard Maintenance
Farm and orchard operators may evaluate the RT28 for suitable drainage work, trenching, land maintenance, and other property-support tasks. The machine should be matched to the actual ground conditions and intended attachments.
General Site Support
For contractors and site-maintenance teams, the RT28 can serve as a compact crawler excavator platform for appropriate excavation and material-handling support work. The final application should be confirmed based on machine configuration, worksite conditions, and operating limits.
Technical Specifications
| Specification | Metric | U.S. / Imperial |
Product name | Derette RT28 2.8 Ton Small Crawler Excavator | Derette RT28 2.8 Ton Small Crawler Excavator |
Machine class | 2.8-ton small crawler excavator | 2.8-ton small crawler excavator |
Engine model | Yanmar 3TNV80F | Yanmar 3TNV80F |
Rated power | 15.2 kW | 20.4 hp |
Operating weight | 2,800 kg | 6,173 lb |
Standard bucket capacity | 0.072 m³ | 2.542 ft³ |
Travel speed | 2.0–3.5 km/h | 1.24–2.17 mph |
Maximum digging height | 4,370 mm | 172.05 in |
Maximum dumping height | 3,060 mm | 120.47 in |
Maximum digging depth | 2,590 mm | 101.97 in |
Maximum digging radius | 4,520 mm | 177.95 in |
Overall dimensions (L × W × H) | 4,100 × (1,370–1,570) × 2,440 mm | 161.4 × (53.9–61.8) × 96.1 in |
Undercarriage | Retractable, 1,300–1,500 mm | Retractable, 1,300–1,500 mm |
Track type | 300 mm rubber tracks | 300 mm rubber tracks |
Swing configuration | Zero-tail swing with swing boom | Zero-tail swing with swing boom |
Operator protection | 4-pillar ROPS/FOPS | 4-pillar ROPS/FOPS |
Safety feature | Pilot safety lock | Pilot safety lock |




