Doosan's DX490LC-3 and DX530LC-3 excavators, which replace the DX480 and DX520, feature increased swing torque by up to 21%, increased bucket digging force by 3% and increased lifting capacity by 2%.
- 6-cylinder, 389-hp water-cooled diesel engine - previous models had 328 hp
- Engines optimized for use with cooled exhaust gas recirculation system, diesel oxidation catalyst and diesel particulate filter to meet Tier 4 Interim regulations
- Engine features: high-pressure common-rail design with direct fuel injection, electronic control and four valves per cylinder
- Intelligent Floating Boom option
- Variable geometry turbocharger (VGT) increases boost pressure at lower engine rpm
- Electronic Power Optimizing System (EPOS) provides fuel efficiency and power via four work modes (Digging, Breaker, Shear and Lifting modes), auto-idle and machine diagnostics
- Power+ mode provides faster workgroup speeds for heavy-duty work
- Improved cabin mounting mechanism with thickened dampening plate and internal coil spring reduce cabin vibration by 20%\
DX490LC-3
- Operating weight: 112,502 lb.
- Max. dig reach: 38 ft. 11 in.
- Max. dig depth: 25 ft. 7 in.
- Max. dump height: 25 ft. 10 in.
- Bucket digging force: 59,966 lb.
- Arm digging force: 48,722 lbf.
DX530LC-3
- Operating weight: 119,212 lb.
- Max. dig reach: 37 ft. 7 in.
- Max. dig depth: 24 ft. 1 in.
- Max. dump height: 25 ft. 4 in.
- Bucket digging force: 59,966 lb.
- Arm digging force: 55,336 lbf.
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