English
New Doosan Diggers
Winter 2014
Doosan introduces two new crawler excavators — the DX63-3 compact conventional tail swing and the DX85R-3 reduced tail swing excavator — replacing the DX60R and DX80R models, respectively. These new models are an excellent combination of power, operator control and fuel efficiency, for improved productivity.
The 6.3-metric-ton DX63-3 and 8.5-metric-ton DX85R-3 have a Tier 4 compliant diesel engine with a high-pressure common rail fuel injection system, which provides increased torque and efficient fuel consumption. Both excavators utilize a diesel oxidation catalyst (DOC) and a diesel particulate filter (DPF), which help reduce emissions to meet Tier 4 air quality requirements.
New features
- Fingertip boom swing and auxiliary hydraulic controls, including variable flow control and detent (continuous) flow mode, improve multi-function capabilities and free up cab floor space
- Independent boom swing control on the joysticks helps operators more easily position the excavators for offset digging
- Auto-shift drive shifts the excavators out of high range or low range and back automatically
- Increased awareness for bystanders with a standard travel motion alarm
Improved digging and lifting
The DX85R-3's bucket force has increased for improved productivity when excavating or trenching with an impressive 14,509 pounds-force of bucket breakout force — an 18 percent increase over its predecessor for class-leading productivity. The DX63-3 and DX85R-3 offer a maximum dig depth of 13 feet 6 inches and 15 feet 6 inches, respectively.
The DX63-3's upper structure is shifted rearward on the undercarriage to increase efficiency. Its 11.6 inches of tail swing overhang provides best-in-class over-the-side lifting performance, without increasing the machine's overall weight. The DX85R-3's minimal 5.9 inches of tail overhang allows it to work in space-restricted environments and next to buildings.
New deluxe instrumentation
A new multi-language, deluxe color panel resembles the instrumentation on larger Doosan crawler excavators and provides a quick visual of machine function vitals. The main screen displays fuel level, coolant temperature, day/time, throttle position and engine rpm. Operators can select auxiliary hydraulic flow modes and rates from the panel. For increased security, an integrated password protection system may be used.
Improved grading and leveling
Available for the first time on Doosan excavators in these size classes, the blade float feature provides operators the versatility to smoothly grade, level or backfill material. The blade height for the DX63-3 has been increased to 16.1 inches — a 21 percent increase compared to the previous model — for better grading and leveling.
Uptime protection
New boom cylinder guards provide improved uptime protection for DX63-3 and DX85R-3 owners, protecting the cylinder when the excavator is digging. Enhanced access to service areas makes performing routine checks and adding fluids easier. This includes the cab's ability to be tilted forward to increase access to major components.
