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Global-CE > Crawler Excavators > Cat Crawler Excavators > CAT CAT®308.5 Mini hydraulic excavator
CAT CAT®308.5 Mini hydraulic excavator

CAT CAT®308.5 Mini hydraulic excavator

Operating mass of complete machine (kg):
8668
Rated power (KW/rpm):
51.8/2200
Engine model:
Cat C3.3 B
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Product Feature

Cat® 308.5 mini excavator with compact size,Surging power and excellent performance,Easily handle a wide range of applications。

Site safety

Your safety is our top priority.。Cat Mini excavators are specially designed,Helps you work safely at all times。We have many safety features in the machine.,Uch as a work light delay-off feature and a retractable fluorescent safety belt。

All-weather comfort experience

Sealed, pressurized cab with improved air conditioning、Adjustable wrist rest and suspension seat,Helps you work comfortably throughout the day。

And is easy to operate

Controls are easy to use。Next-generation monitors offer customizable preferences,Machine information is intuitive and easy to read。

Single Handle Travel Mode

Use Cat Handle travel mode,The movement of that device can be more easily control。Just press the button.,You can switch from conventional ride control using the joystick and foot pedal to joystick control。New controls make operation easier,Everything is under control.。

Mini in shape but excellent in performance

Better lifting ability、Slewing capacity、Ride ability and versatility help you get the job done more efficiently,And“Bucket shovel fit”Function for easy cleanup。

Easy to maintain,Reduce downtime

Cat Mini excavators are easier to maintain、Convenient。Maintenance points are centralized,Maintenance panel is sturdy。Stand on the ground.,Daily checkpoints can be easily checked。

Lower operating costs

Cat Mini excavators are equipped with automatic idle speed、Automatic energy-saving shutdown of engine(Off by default)、Functions such as efficient hydraulic system and variable displacement pump,Designed to reduce your operating costs。

Unmatched Dealer Support

Cat Dealers are ready to help you achieve your business goals。From equipment solutions to operator training,Then to maintenance services and so on.,Cat Agents are always available to assist you.。

Product Parameter


Engine

 

Engine model

 Cat C3.3B

The speed is 2200 rpm At the time
Rated net power ISO 9249/EEC 80/1269

51.8 kW

Total power ISO 14396

 55.4 kW

Cylinder bore

94 mm

Stroke

120 mm

Displacement

3.33 L

Weight

 

Minimum Operating Weight(Cab included)

 8334 kg

Maximum operating weight(Cab included)

8668 kg

**Minimum weight based on steel track、
Counterweight、Operator、Fill it up
Fuel tank、Standard Stick and Bucket。

**Maximum weight based on steel track、
Counterweight、Operator、Full fuel tank
、Standard stick、Blade and Bucket。

Weight increase for minimum configuration

 

Counterweight

 250 kg

Blade

333 kg

Travel system

 

Travel speed – High speed

 4.4 km/h

Travel speed – Low speed

2.7 km/h

Maximum traction – High speed

29.3 kN

Maximum traction – Low speed

71 kN

Ground pressure – Minimum weight

36.2 kPa

Ground pressure – Maximum weight

37.6 kPa

Gradeability(Max)

 30 degrees

Maintenance refill capacity

 

Cooling system

 10.0 L

Engine oil

11.2 L

Fuel tank

145 L

Hydraulic oil tank

 53 L

Hydraulic system

104 L

Hydraulic system

 

Equipped with variable displacement piston pump
The Load Sensing Hydraulic System

The speed is 2400 rpm Pump flow at

 167 L/min

Work pressure – Equipment

 285 bar

Work pressure – Drive

285 bar

Work pressure – Turn around

250 bar

Main auxiliary circuit

 

Flow rate

 131 L/min

Pressure

 285 bar

Digging force – Arm(Standard)

 41.7 kN

Digging force – Bucket

 61.5 kN

Slewing system

 

Machine swing speed

10.6 rpm

Blade

 

Width(Standard)

 2300 mm

Width(Wide type)

2450 mm

Height

 431 mm

Certification - Cab

 

Roll-over protection structures(ROPS)

 ISO 12117-2:2008

Anti-rollover protection structures(TOPS)

 ISO 12117:1997

Top shield

 ISO 10262:1998(II Level)

Noise

 

Operator sound pressure
(ISO 6396:2008)

72 dB(A)

Average external sound pressure
(ISO 6395:2008)

 99 dB(A)

Size

 

Standard stick

 

1 Excavation depth

 4202 mm

2 Maximum Vertical Digging Depth

 3375 mm

3 Maximum ground reach

 6214 mm

4 Maximum Reach

6370 mm

5 Maximum Digging Height

7374 mm

6 Max. unloading height

 5339 mm

7Boom retract position

1812 mm

8 Rear radius of gyration(With counterweight)

 1995 mm

Tail radius of gyration(No counterweight)

 1800 mm

9Maximum blade height

 363 mm

10Maximum Blade Depth

414 mm

11 Transport height

 2682 mm

12 Cab height

 2574 mm

13Swing bearing height

789 mm

14Overall undercarriage length

 2880 mm

15 Total length of transportation

6190 mm

16 Shoe width

450 mm

17Overall width of track

 2300 mm

18 Ground clearance

 403 mm

19Stick length

1820 mm

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