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8.6 tonne - Doosan DX85R-3 Compact Excavator

Rated Power:  44.3 kW (59.4 HP) at 2100 rpm
Machine Weight:  8540 - 8600 kg
Bucket Reach:  4175 - 4725 mm

The DX85R-3 Tracked Excavator is a 8.6 tonne (operating weight) tracked excavator, which we offer on a self-drive or operated basis. For our up-to-date prices please call T:01482 319480.  hiredesk@headlandplant.co.uk

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The information below is provided by the manufacturer. This may vary depending on the year of the machine. 

* Dimensions

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  Boom length - mm 3380   
  Arm length - mm 1700 2250
A Shipping length - mm 6165 6265
B Rear length - mm 1370 1370
C Tail swing radius - mm 1300 1300
D Front length - mm 4785 4890
E Shipping height (boom) - mm 2085 2410
E Shipping height (hose) - mm  2150 2480
F Dozer height - mm 408 408
G Dozer cut below grade - mm 304 304
H Center line to blade - mm 1910 1910
I Tumbler distance - mm 2200 2200
J Track length - mm 2825 2825
K Track length to dozer - mm 3280 3280
L Counterweight clearance - mm 735 735
M Upperstructure width - mm 2265 2265
N Cab width - mm 1030 1030
O Cab height above bonnet - mm 925 925
P Height over cab - mm 2640 2640
Q Ground clearance - mm 362 362
R Track height - mm 670 670
S Shoe width std. - mm 450 450
T Track gauge - mm 1850 1850
U Overall width - mm 2300 2300
  Boom swing distance, left - mm 704 704
  Boom swing distance, right - mm 837 837

 

 

* Working range

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  Boom length - mm 3380  
  Arm length - mm 1700 2250
  Bucket capacity - m³ 0.28 0.28
A Max. digging reach - mm  6915 7430
B Max. digging reach (ground) - mm 6765 7295
C Max. digging depth - mm 4175 4725
D Max. loading height - mm 4645 4995
E Min. swing radius - mm 2550 2635
F Max. digging height - mm 6630 6980
G Max. bucket pin height - mm 5655 6005
H Max. vertical wall depth - mm 3245 3755
I Max. radius vertical - mm 4730 4905
J Max. digging depth (8´ level) - mm 3815 4420
K Min. radius 8´ line 1510 1480
L Min. digging reach 580 -55

 

 

* Weight

With 2.25 m arm and 0.28 m³ bucket 

  Shoe width (mm) Operating weight (kg) Ground pressure (kgf/cm²)
Rubber 450 8600 0.39
Steel 450 8630 0.39

 

* Digging forces (ISO)

    Boom: 3.38 m
 Arm: 1.7 m 
Bucket: 0.28 m³
Boom: 3.38 m
 Arm: 2.25 m 
Bucket: 0.28 m³
Bucket
(SAE / ISO)
t 5.50 / 6.30 5.50 / 6.30
  kN 53.9 / 61.8 53.9 / 61.8
Arm
(SAE / ISO)
t 4.25 / 4.39 3.57 / 3.66
  kN 41.7 / 43.0 35.0 / 35.9

 

* Buckets

Capacity
(m³)
Width
(mm)
  Weight
(kg)
Boom:
3380 mm
 
SAE With side 
cutters
W/O side 
cutters
  Arm:
1700 mm
Arm:
2250 mm
0.28 813 707 232 B B
0.20 646 540 199 A A

A: Suitable for materials with a density less than or equal to 2000 kg/m³
B: Suitable for materials with a density less than or equal to 1600 kg/m³
For reference only.

 

 

Lifting capacities

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Standard configuration - Dozer up
Standard track width: 2300 mm • Boom: 3380 mm • Arm: 1700 mm • W/O Bucket • Shoe: 450 mm                    Units: 1000 kg

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Standard configuration - Dozer down
Standard track width: 2300 mm • Boom: 3380 mm • Arm: 1700 mm • W/O Bucket • Shoe: 450 mm                    Units: 1000 kg

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Option 1 - Dozer up
Standard track width: 2300 mm • Boom: 3380 mm • Arm: 2250 mm • W/O Bucket • Shoe: 450 mm                    Units: 1000 kg

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Option 1 - Dozer down
Standard track width: 2300 mm • Boom: 3380 mm • Arm: 2250 mm • W/O Bucket • Shoe: 450 mm                    Units: 1000 kg

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1. Lifting capacities are in compliance with ISO 10567:2007(E).
2. The load point is at the end of the arm.
3. * = The nominal loads are based on hydraulic capacity.
4. The nominal loads shown do not exceed 75% of tipping loads or 87% of hydraulic lifting capacity.
5. For lifting capacity with bucket, simply subtract the actual weight of the bucket from the values.
6. The configurations indicated do not necessarily reflect the standard equipment of the machine.

 

 

Technical specifications

* Engine  
• Model Yanmar 4TNV98
4-Cycle Water-Cooled, Direct injection
• No. of cylinders 4
• Rated power at 2100 rpm 44.3 kW (59.4 HP) (SAE J1349)
• Max. torque at 1365 rpm 24.6 kgf/m (241 Nm)
• Idle (low - high)  1050 [± 10] - 2250 [± 10] rpm 
• Piston displacement 3319 cm³
• Bore x stroke 98 mm x 110 mm
• Starter 12 V / 3.0 kW
• Batteries – Alternator 12 V / 100 Ah – 12 V, 80 A
• Air filter Double element with automatic dust evacuation.

 

* Fluid capacities  
Fuel tank: 110 l
Cooling system (radiator capacity): 10 l
Hydraulic oil tank: 87 l
Engine oil: 10.2 l
Swing drive: 1.5 l
Travel device: 2 x 1.2 l

 

* Environment
Noise levels comply with environmental regulations (dynamic values).
 
• Noise level LwA
Guaranteed:                   98 dB(A) (2000/14/EC)
Measured:                      97 dB(A) (2000/14/EC)
 
• Operator LpA:            71 dB(A) (ISO 6396)     

 

* Undercarriage
Very robust construction throughout. All welded structures designed to 
limit stresses. High-quality, durable materials. Lateral chassis welded and 
rigidly attached to undercarriage. Track rollers lubricated for life. Idlers and 
sprockets fitted with floating seals. Track shoes (option) made of inductionhardened alloy with triple grouser. Heat-treated connecting pins. Hydraulic 
track adjuster with shock-absorbing tension mechanism.
• Number of rollers and links per side 

Upper rollers: 1 (ø 160 mm)
Lower rollers: 5 (ø 156 mm)
Number of links: 39
Overall track length: 2825 mm

 

 

* Hydraulic system
• The hydraulic system enables independent or combined operations
• Load sensing closed centre hydraulic with variable displacement 
piston pump
• Proportional joystick control 
• Two travel speeds offer either increased torque or high speed 
• Auto-idle 
• Auto shift travel
• Control of flow in auxiliary hydraulic circuits

 

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• Maximum system pressure  
Boom/arm/bucket: 316 kg/cm²
Work/travel: 300 kg/cm² 
Swing: 220 kg/cm²

 

 

* Swing mechanism
• High-torque, axial piston motor with planetary reduction gear 
• Swing bearing: single-row, shear type ball bearing with inductionhardened internal gear
• Internal gear and pinion immersed in lubricant
• Max. swing speed:                                        9.5 rpm
• Max. swing torque:                                  1950 kgf/m
• Boom swing angle L/R:                                70° / 55°

 

* Drive
Each track is driven by an independent, high-torque axial piston motor 
through a planetary reduction gearbox. Two levers / foot pedals guarantee 
smooth travel with counter-rotation on demand.

• Travel speed (low - high) 2.7 - 4.7 km/h
• Maximum traction (low - high) 3.9 t - 6.6 t
• Maximum gradeability 35° / 70%

 

 

* Hydraulic cylinders

Piston rods and cylinder bodies of high-strength steel. Shock-absorbing 
mechanism fitted in cylinders for shock-free operation and extended life.

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All-round versatility and improved fuel efficiency

Whatever your application you can rely on the DX85R-3 ideal working range with reduced tail swing to take 
on all these tasks with efficient, dependable performance that saves you time and money.
• Optimised engine, now compliant with the Stage IIIB European regulations using EGR (Exhaust Gas 
Recirculation) and DPF (Diesel Particulate Filter)
• Improved load sensing closed-centre hydraulic system uses the engine power more effectively, maximising 
pump output and offering more comfort, smoothness and accuracy regardless the load
• Increased digging power, swing torque, lifting capacity, travel speed and traction force for higher performance
• Improved fuel efficiency means you can keep costs down and reduce the environmental impact
• The dozer blade float function allows fast finishing work, simply by travelling backwards

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Higher gradeability and work capability
Thanks to the high tractive effort and strong 
swing torque, the DX85R-3 offer excellent 
capability for working on slopes.
Boom swing
The swing bracket and the 
boom swing cylinder size 
ensure powerful and stable 
performance.
RPM dial / Auto idle
Thanks to the electronic 
control, the optimal engine rpm 
can be set per workload. The 
auto idle function applied as 
standard helps fuel efficiency 
and reduces noise levels.
Main control valve
The machine can be precisely 
controlled in single and 
complex operations and the 
front hydraulic flow matched to 
the work load. This contributes 
to great fuel economy and 
smooth operation.

 

Maximum controllability in every situation

Proportional auxiliary flow means that the excavator’s power is matched by smooth, confident manoeuvres. 
Using sensitive joysticks and clear controls positioned for convenient access, you are able to work safely 
and confidently with minimum effort. Even the switches have been ergonomically placed on the right-hand 
control stand and positioned according to the frequency with which they are used. The highest standards of 
efficiency are just a finger’s reach away.

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The ideal workspace – designed around you

The DX85R-3 is designed to provide you with the best possible working conditions. The sophisticated ROPS 
cab is ISO-certified for your safety. Its spacious interior offers a fully adjustable and comfortable seat. 
Comfortably seated, you have easy access to several storage compartments and a clear all-round view of 
the worksite. Noise and vibration levels are reduced while air conditioning allows you to maximise your 
productivity and return on investment.

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Ergonomic operator environment
Spacious cab with ample leg room, robust 
ergonomic pedals, large & flat floor, cup holder, etc.
Adjustable seat, head rest 
and arm rests
For more operator comfort.
Air conditioning
Allows the operator to adjust 
the airflow to suit conditions.

 

 

More durability – less maintenance

A reinforced X-chassis provides strength, while the optimised boom shape ensures uniform load distribution 
for more durability. Top quality materials, the most advanced computer-aided design and endurance testing 
under the most demanding conditions ensure your excavator will keep on performing.
The DX85R-3 is designed for low maintenance with longer intervals resulting in more machine availability 
while skilled Doosan-trained technicians are available to provide extra support when needed.