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CDM6240 Hydraulic Crawler Excavator

CDM6240 Hydraulic Crawler Excavator

疯狂赛车Construction Machinery CDM6240 features: CDM6240with strong, powerful and high quality engine and advanced negative flow control hydraulic system to achieve the best power matching and minimum costand guarantee the optimum working efficiency. CDM6240 is widely used forexcavating, handling...

Detailed description

Construction Machinery CDM6240 features:

CDM6240with strong, powerful and high quality engine and advanced negative flow control hydraulic system to achieve the best power matching and minimum costand guarantee the optimum working efficiency. 
疯狂赛车 CDM6240 is widely used forexcavating, handling and finishing of earth or stones to meet the demand of construction sites, factory, municipal engineering and park objects. With the optional bucket, the material handling, surface finishing, ditch excavation and river course cleaning can be achieved, with the optional breaking hammer, the building demolition, road surface repair and rock breaking can be achieved. The structural members are subjected to the repeated analytical calculation to ensure the rigidity and strength which can cope with the rigorous working conditions.

Cummins 6BTAA5.9-C
The original Cummins high power, high torque and turbo-charging 6-cylinder direct injection engine guarantees the high reliability and durability. The charge air cooling system over the compressed air can enhance the oxygen content upon combustion markedly. The center fuel injection under high injection pressure allows the uniform atomizing of fuel, guarantees the normal combustion and reduces the exhaust gas emission.

Filtering System
The high efficiency dual element air filter ensures the quality of engine air intake. In addition, the air pre-filter can carry out the rough filtration over the air intake to enable the operation under the poor air quality working conditions and prolong the maintenance interval of the air filter. The oil-water separator and two-stage fuel filter will filtrate the fuel many times to ensure the quality of fuel fed to the engine.

Cooling System
The parallel radiator cooling makes cooling effect better and service easier.

Maintenance and Service
The easy maintenance of direct injection engine reduces the cost of maintenance. The global after service of engine enables the sharing of global resources. This will enhance the service efficiency, relieve the customers of worry about the service and ensure the attendance rate of excavator. 

Specialist of Engine Management
The engine speed allows 10 adjustable gears through the throttle potentiometer and achieves the precise management over the engine speed through the control of engine throttle by the DC servo motor. The engine allows the auto idling/acceleration function to reduce the fuel consumption.It has a function of touch power enhancement, can handle the high resistance working condition with ease.

Control Mode
疯狂赛车 The dual pump two-circuit total power control system adopts the mature and reliable Europe and America technology to control the flow, the proportional solenoid valve regulates the two-stage pressure control of the main overflow valve. 

Functions
疯狂赛车 This machine allows the functions of straight travel, boom/armconfluence, boom/arm holding, swing priority, swinganti-reversing and regeneration ofarm cylinder. Each circuit without interference during composite action.Digging of arm and bucket as well as the lifting and swing of boom at the same time during operating, the operations of left and right motors are independent during traveling.

Auxiliary Hydraulic Valve
The main valve is provided with a set of standby valves to facilitate the installation of other accessories such as the breaking hammer. 

Filtering System
疯狂赛车 The hydraulic circuit is equipped with the high quality hydraulic oil filter which can prolong the service life of the hydraulic elements. 

Components Layout
The special design of hydraulic system and components location can enhance the system efficiency of the machine. The hydraulic oil tank, main pump and main valve are arranged closely to shorten the connecting lines and consequently reduce the line friction and pressure drop. The radiator is arranged at the right side behind the cab to effectively reduce the noise, hot air and exhaust gas received by the operator. 

Pilot System
The pilot pump is independent of main pump and supply oil to the pilot system which guarantee the stable and independent pilot control and facilitate the maintenance.

Monitor
The multi-purpose true color monitor allows the real-time monitoring and display of machine state, engine speed, coolant temperature, oil pressure and fuel level etc. 

Power Control Mode
3 power modes of heavy-duty power mode (H mode), saving power mode (S mode) and light-duty power mode (L mode) can switch at will to reduce the system power loss. The combination of 3 modes can reduce the fuel consumption and better meet the different working conditions.

Fault Auto Warning
It allows the fault self-diagnosis auto warning display and fault message save up to 99,000 pieces approximately to facilitate the fault call and inquiry during the maintenance of equipment. There are 3 levels of warning display according to the fault severity.

Engine Overheating Auto Protection
疯狂赛车 The overheating protection will be active if the coolant temperature exceeds 102℃. Then the engine will not stall while the system will reduce the engine speed. However, if the coolant temperature is too high, the operator should shut down the machine as required and find out the fault causes. 

Low Oil Pressure Protection
When oil pressure below the standard value, the oil pressure switch will be closed, the text warning will display for 3s and then the engine will slow down to low idle speed. In such a case, the operator should shut down the machine as required. 

Maintenance Auto Remind
疯狂赛车 The monitor will periodically remind the operator of changing the engine oil, grease and filter element at the set interval to support the routine service.

Main frame
The reasonable layout of robust main frame optimizes the utilization of steels. 

Undercarriage
The X-shaped undercarriagewith heavy-duty box structure is subjected to the repeated finite element analytical calculation and enhance the overall rigidity, strength and torsional resistance.Undercarriage is welded from the low alloy structural steel plates with overall process quality control. The critical welds are fully subjected to fault detection and stress test to ensure the product quality. 

Track
疯狂赛车 There are ribs and crawler cradle in the middle of the track links. Using m-type seals to ensure the lubricating effect of the pin and pin suites. Extending the track working life effectively.

Travel Device
疯狂赛车 The drive unit employs the imported motors of high quality and the drive wheel adopts high frequency heating overall hardening process to enable the excellent wear resistance of the external gear rim.

Idler Cushion
疯狂赛车 The idler cushion with high quality sealing elements effectively guarantee the high pressure sealing inside the cylinder block, the springs are subjected to the special heat treatment to allow the excellent fatigue resistance.

Cab Shock Absorption System
疯狂赛车The cab shell is installed to the platform through the cushioning materials consisting of the silicon oil and rubber to relieve the vibration, reduce the noise and guarantee the operation comfort. 

Cab External Structure
疯狂赛车 The roof and both sides of cab are reinforced by the steel pipes to enhance the fatigue resistance and damping capacity. The falling object protection structure is bolted to the cab front directly to facilitate removal and consequently enable the machine to adapt to the working conditions and meet the specified safety requirements. 

Windows
疯狂赛车 The glass is clung to the cab directly without frame to enlarge the visual field. The windows allow free adjustment to open/close the front and upper window and windshield,besides, the front glass can be set to the roof above the operator. 

Front Wiper
疯狂赛车 The wiper located in front of cab pillar enlarges the operator's field of view, it allows the continuous and intermittent operation modes. 

Safe and Comfortable Cab
疯狂赛车 The left/right pillar type reinforced cab complies with 15012117 - 2: 2008 and the optional cab FOPS conforms to 15010262: 1998 to ensure the operator's safety. The 2.7m3 cab space makes the excavator operation comfortable. The reasonable layout of control elements inside the cab allows easy operation.

Standard Cab Equipment
The cab inside includes the cigar lighter, ash tray, cup holder, coat hook, cubbyhole and storage rack, which enhance the operation comfort. 

A/C System
The high performance and healthy A/C allows the air circulate. Concise control panel and easy press key operation, multi-direction A/C air outlet allowing fast regulation of cab inside temperature and fast defrosting. The fault self-diagnostics mode facilitates the A/C maintenance. 

Deluxe Seat
The comfortable suspension type seat is provided with a hydraulic damper, the wide seatback allows the waist support and the curve profile enables comfortable riding, the double slide track multi-way multi-step regulation enables different operators to find the best posture, the wide pedal space allows the free body stretching and relieves the operator from the long time operation fatigue. 

Safety Lock Joystick
The hydraulic safety lock joystick is located at the outside of center left armrest box in the cab. The machine control is active only when the joystick is in ON position, which can prevent the wrong operation in an effective way. 

Control Lever
The reasonable design of control lever saves the operating effort by the lever principle, the ergonomic design enables the operator to maintain the natural wrist and arm posture. The moderate joystick stroke relieves the degree of fatigue and ensures the accurate control. 

Switch Control Panel
The control panel on the left/right pilot box is in concise and esthetic layout and the operation of keystroke is easy.

Boom and Arm
疯狂赛车 To cope with high load during operation, the design & development team of LONKING adopts lots of up-to-date design ideas, preserves the higher safety factor, employs finite element analysis, calculation and optimum design to finish the development of boom and arm and selects the high strength low alloy structural steels for the boom and arm fabrication. 

Pin Shaft
The pin shaft is the core element for the connection of the working equipment. LONKING chooses the professional pin shaft suppliers and subject the pin shafts to the strict fault detection to ensure the quality. The pin shaft of LONKING excavators has thick chrome plating coat and high surface finish.The special treatment enables the extremely high wear resistance and corrosion resistance.

Bucket
The bucket body is made of low alloy and high tenacity materials and the external structure is made of high strength and wear-resistant steels, which constitute the entire reinforced bucket. This excavator provides different bucket options to meet different working demands. 

Easy Maintenance and Service
疯狂赛车 The design and layout of CDM6240consider to providing convenience for maintenance personnel. Most maintenance locations can be accessed from the ground level to enable the fast and high efficiency maintenance. 3 side doors can be opened during the routine inspection and maintenance and each service point is within the easy reach. The maintenance points are clearly identified, easy to operate. The electrical elements are centralized in the electromechanical control box in the cab to facilitate the maintenance. 

Long Maintenance and Service Cycle
The maintenance and service cycle has been prolonged to reduce the maintenance parts collection and enhance the availability.

Specifications

CDM6240

Engine

Model

Cummins6BTAA5.9-C (Tier 2,standard)

Rated power

疯狂赛车133kW (178hp) /2000 rpm

疯狂赛车Max. torque

疯狂赛车708N.m/1500 rpm

疯狂赛车Bore× Stroke

102mm×120mm

Displacement

5.9 L

Comment

Maintain the rated power at 2300m elevation.

Operating weight

Summary

Operating weight:22000kg
疯狂赛车The operating weight includes the weight of 5700 mm standard boom,2900 mm standard arm,1.16m3 standard bucket,600 mm track shoes, lubricating oil, coolant,the full diesel oil tank and the rest standard configuration units.

Ground pressure

疯狂赛车45 kPa (Lengthened type:50 kPa)

Fluid capacity

Fuel tank

350 L

疯狂赛车Cooling system

23 L

Engine oil

18 L

疯狂赛车Swing drive unit

3.8 L

Traveling gear

2×3.3 L

疯狂赛车Hydraulic oil tank

220 L

Swing mechanism

疯狂赛车High torque plunger motor and 2-stage planetary reducer drive.Brake inside loading motor is applied by spring and released by hydraulic unit. The automatic braking is available when the swing control lever is in neutral position.

Swing speed :12.1 rpm
    (Lengthened type:8 rpm)

Travel drive

Summary

The integrated 2-speed plunger hydraulic motor and reducer drive, motor and hydraulic pipeline are arranged inside the  track frame to prevent the damage caused by the rugged road surface; The motor inside is provided with the service brake and shock absorption valve to ensure the smooth running and stop and the reliable braking.

疯狂赛车Taveling speed

3.0 - 5.1 km/h

疯狂赛车Gradeability

35°(70%)

疯狂赛车MaximumTraction

222 kN

Traveling mechanism

疯狂赛车Standard track shoe width

600 mm

疯狂赛车No. of track shoe

疯狂赛车49 (each side)

疯狂赛车No. of carrierrollers

疯狂赛车2 (each side)

疯狂赛车No. of track rollers

疯狂赛车9 (each side)

Hydraulic system

Main pump

Duplex axial variable plunger pump

Pilot pump

gear pump (integrated in main pump)

Max. flow of system

2×217 L/min

Max. pressure of equipment

34.3 MPa

Max. pilot pressure

4.9 MPa

Operating equipment

Each machine action is under the pilot control. The right lever controls the motion of boom and bucket while the left lever controls the arm motion and upper structure swing. The foot pilot valve is provided with the lever joystick to control the machine traveling or turning by the foot or lever. The traveling gear shift adopts the solenoid switch control.

Electrical system

System voltage:24 V
    Battery:12 V,120 A×2


Transport Size
疯狂赛车The following sizes approximate to that of the equipment of standard configuration.


Working Device type

Standard

Long Reach

Boom Length (mm)

5700

8500

Arm Length (mm)

2900

6500

a Transport length(mm)

9522

12290

b Total transport height(mm)

3032

3160

c Tumblers distance (mm)

3645

d Tail slewing radius(mm)

2830

e Counterweight ground clearance(mm)

1103

f Track gauge(mm)

2390

g Total transport width(mm)

2990

h Upper structure width(mm)

2730

i Standard track shoe width(mm)

600

J Min. ground clearance(mm)

480

Operating Range
疯狂赛车The following sizes approximate tothat of the equipment of standard configuration.

Working Device type

Standard

Long Reach

Boom Length (mm)

5700

8500

Arm Length (mm)

2900

6500

疯狂赛车aMax. digging radius(mm):

9917

15746

疯狂赛车b     Max. digging depth(mm):

6566

12004

疯狂赛车c     Max. digging height(mm):

9715

13366

d     Max. dumping height(mm):

6830

10994

疯狂赛车e     Max. digging radius on ground(mm):

9745

15639

疯狂赛车Max. bucket breakout force-ISO(kN):

147

90.4

Max. arm breakout force-ISO(kN):

107

54.8


Standard Equipment
疯狂赛车The following equipment items are part of the whole standard equipment of CDM6240. In addition, the standard configuration will change along with the product modification. For more information, contact the local LONKING agent.

疯狂赛车50 A alternator

疯狂赛车Aerial and harness (excluding radio speaker)

Platform working lamp (1)

疯狂赛车Suspension type adjustable seat

Boom working lamps (2)

Retractable seat belt (2" width)

疯狂赛车Refuelling pump

疯狂赛车Ash tray and cigar lighter

Powertrain

Cup holder

Original Cummins engine

疯狂赛车A/C system allowing fast defrosting

Radial seal air filter

Hydraulic safety lock joystick

疯狂赛车Air prefilter

Radio

疯狂赛车Oil-water separator

File pocket

疯狂赛车Fuel filter

Hat-and-coat hook

Rippled wall radiator with cleaning space

Left/right side storage

疯狂赛车High-volume fuel tank

Interior lighting equipment

Auxiliary hydraulic valve (1)

疯狂赛车Double stereo speaker

Auto swing parking brake

疯狂赛车Openable skylight

Boom/Armholding control function

疯狂赛车Wiper and washer

Counterweight

Cab positive pressure filtration and ventilation system

Top bonnet

Rear window (escape exit)

Gate lock and cover lock

疯狂赛车Escape hammer

A/C stationary condenser

疯狂赛车Washable rubber floor mat

Arm re-activation circuit

疯狂赛车Fire extinguisher

Boom/Armconfluence

Color graphic display

疯狂赛车Straight travelling hydraulic circuit

疯狂赛车Economic mode selection

Double speed travel

Date and time display

疯狂赛车Front idler and idler cushion

疯狂赛车Machine state display

疯狂赛车Trailer ring on base frame

Working hour display, maintenance remind

疯狂赛车Chain guard rack

Current engine speed display

疯狂赛车Adjustable seat armrest

疯狂赛车Warning message


Optional Equipment 
The optional equipment may be different from this manual. For more information, contact the local LONKING agent.

Bucket

Operating console

疯狂赛车Undercarriage

疯狂赛车Auxiliary hydraulic unit and pipeline

Loose material bucket 1.2m³、Loose material bucket 1.35m³

Working warning lamp

疯狂赛车700mm triple grouser shoes

疯狂赛车Breaking hammer pipeline

Cab roof protecting net

800mm triple grouser shoes

Hydraulic breaking hammer

疯狂赛车Cab front protecting net

Track rubber block

疯狂赛车Travel warning device

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