CT85 Mini Excavators (Hydraulic Crawler Excavator)

CT85 Mini Excavators (Hydraulic Crawler Excavator)

CARTER MINI EXCAVATOR (HYDRAULIC CRAWLER EXCAVATORS) SPECIFCATIONS

CT85-7A Mini Excavator

Engine CUMMINS B3.3(BC30060)

Power 60KW/2200RPM

In conformity with the EU III emission control regulations, a guarantee of super power

Imported hydraulic system with dual pump and dual circuit, stable work performance, fast speed.

Guarantee for 3 yrs under normal use and maintenance

Imported hydraulic components, Japan made  TOSHIBA main pump, Japan made KYB multi-circuit valve, swing motor, walking motor, Japan made or South Korea made gasoline tank

On-line digital monitoring and control system

GPS satellite position and remote diagnose system(optional)

Cold&warm air conditioner supply under different kinds of weather conditions

Light and handy pilot operating system

Steel pedrail

SPECIFICATIONS

Engine Model       U.S CUMMINS B3.3-C       

Operating weight 8.300 kg      

Travel speed 4.6/2.9km/h

Bucket Capacity   0.36~0.4m3 

Tracking force      70.8kn

Engine power       60KW/2.200RPM

gradeability   300(58%)

Swing speed 11.0RPM      

Bucket digging force   54.8 kn

Ground Pressure 38KPa   

Arm digging force       46.6 kn

DIMENSIONS

Boom Length       3.905 mm

Arm Length   1.750 mm

Upperstructure width   2.170 mm

Undercarriage width    2.100 mm

Overall Height with cabinet       2.540 mm

Rear swing radius       1.835 mm

Clearance under counter weight      785 mm

Tumbler Distance 2.200 mm

Ground clearance       370 mm

Overall length for transportation      6.430 mm

 working range

MAX digging radius     6.810 mm

MAX digging radius at ground lever 6.680 mm

MAX digging depth      4.375 mm

MAX vertical wall digging depth 3.200 mm

MAX digging height     7.310 mm

MAX dumping height   4.950 mm

MAX dozer cutting depth    430 mm

MAX dozer lifting height     310 mm

JAPAN KYB HYDRAULIC SYSTEM

 MAIN PUMP             JAPAN KYB AXIAL PISTON PUMP

JAPAN KYB       2 PUMP 2 CIRCUIT HYDRAULIC SYSTEM

                           WITH CONSTANT HORSEPOWER CONTROL

 FLOW/PRESSURE   79.2*2 L/MIN / 2.200 RPM / 27.5 MPA

 PILOT PUMP           GEAR PUMP

 FLOW/PRESSURE    20.9 L/min / 2.200 rpm / 3.9 mpa

 SWING MOTOR        setting pressure 20.6MPA

 ATTACHMENTS        over load pressure 

 BOOM / ARM / BUCKET 30.5 MPA

An excavator is an consisting of an articulated arm (boom, stick), bucket and mounted on a (a rotating platform, like a ) atop an undercarriage with or . Their design is a natural progression from the .

Usage

Excavators are used in many ways:

Digging of , holes, Material handling Brush cutting with hydraulic attachments

General grading/landscaping Heavy lift, e.g. lifting and placing of pipes , especially, but not only

Driving , in conjunction with a Configurations

Excavators come in a wide variety of sizes. The smaller ones are called a mini-excavator or . One manufacturer's largest model weighs 84,980 (187,360 ) and has a maximum bucket size of 4.5 m3 (5.9 yd3). The same manufacturer's smallest mini-excavator weighs 1470 kg (3240 lb), has a maximum bucket size of 0.036 m3 (0.048 yd3) and the width of its tracks can be adjusted to 89 cm (35 inches). Another company makes a mini excavator that will fit through a doorway with tracks that can be adjusted to only 70 cm (28 inches) wide.

Excavator attachments

In recent years, hydraulic excavator capabilities have expanded far beyond excavation tasks with . With the advent of hydraulic powered attachments such as a , a or an , the excavator is frequently used in many applications other than excavation. Many excavators feature quick-attach mounting systems for simplified attachment mounting, increasing the machine's utilization on the jobsite. Excavators are usually employed together with and . Most wheeled versions, and smaller, have a small backfill (or dozer-) blade. This is a horizontal bulldozer-like blade attached to the undercarriage and is used for pushing removed material back into a hole. Prior to the 1990s, all excavators had a hang over, or "conventional" counterweight that hung off the rear of the machine to provide more digging force and lifting capacity. This became a nuisance in tight turn areas - the machine could not swing the second half of its cycle due to restricted turn radius. In the early 1990s The Komatsu Engineering Company launched a new concept excavator line that did away with the "conventional" counterweight design, and so started building the world's first tight tail swing excavators (PC128.PC138,PC228,PC308). These machines are now widely used though out the world.

CT85 Mini Excavators (Hydraulic Crawler Excavator)