Sem 24ton Mobile Bulldozer Sem822D Crawler Bulldozer with Ripper

• After-sales Service: Provided
• Warranty: Provided
• Type: Special Type
• Transmission: Hydraulic Transmission
• Walking Mode: Crawler
• Load and Unload Method: Front Discharge
• Model NO.: SEM822D
• Engine Power: 162kw
• Certification: CE
• Condition: New
• Color: Yellow
• Truck Width: 560mm
• Blade Width: 3720mm
• Blade Height: 1511mm
• Max. Blade Digging Depth: 563mm
• Max. Travel Speed: 11.5km/H
• Ground Pressure: 70 Kpa
• Ground Clearance: 394mm
• Engine Rated Power: 162kw
• Blade Capacity: 6.4m3
• Minimum Streeing Radius: 4225mm
• Track Shoe Width: 560mm
• Transport Package: Nude
• Specification: 23680kg
• Trademark: SINOMADA
• Origin: China
• HS Code: 8426411000
• Production Capacity: 100units/Month

Product Description

Hydrostatic transmission technology

The closed double-loop electronically controlled hydrostatic transmission system inherited from third-generation bulldozer has high operating efficiency

• German Rexroth drive pump, drive motor and high-pressure oil pipe are selected, with high reliability and long life; Control technology, precise control and high transmission efficiency
• In-situ steering, power steering, stepless speed change, saving working time and greatly speeding up work efficiency
• Eliminate torque converter, gearbox and rear axle box, saving 60% in maintenance costs

easy operation

• Multi-functional electronically controlled travel handle to realize spot steering, power steering and cruise control
• Cruise control - Press the yellow handle for 5 seconds to realize automatic operation at the set speed, freeing the driver's hands and making the operation easier
• Steering in situ - move the walking handle to the left/right to the end, and you can realize in situ steering in the corresponding direction
• Power Steering - automatically implemented, the load steering power is greater 
• The electronically controlled engine with high torque reserve coefficient can realize real-time switching of three modes of economy/standard and heavy load under any working condition through a multi-state switch to meet the requirements of different working conditions
• Accelerator pedal selection mode, which can only reduce the vehicle speed while keeping the engine speed constant, which is more convenient for the engine power to be exerted
• The electronically controlled engine continuously variable speed knob can realize precise control of engine speed, and the engine can walk at low speed
• Steering mode, which can realize fast and slow steering to meet different requirements of operators
• Hydraulic pilot control, easy to operate
• Precise Control of Jobs

Large capacity SU shovel

Standard equipped with the most popular SU shovel of the family, with large capacity

• The SU shovel combines the advantages of the straight shovel and the U-shaped shovel. It not only has the leveling function of the straight shovel, but also is compatible with the U-shaped shovel's strong soil collection ability.
• The technology L-shaped push arm has high structural strength, and the blade is close to the fuselage while ensuring a more stable thrust
• The shovel adopts a box structure, and the reinforced design of the shovel joint ensures the strength of the shovel

Long-life four-wheel belt

• The chassis is suspended by a balance beam pivot, which can effectively reduce the impact on the final drive and increase the life of the final drive
• The modular final drive design adopts one-stage spur gear plus one-stage planetary drive, with large transmission ratio and high transmission efficiency
• Wet friction disc brakes, normally closed design, spring compression hydraulic separation, 2 times longer life
• Lifetime maintenance-free design, common industry chassis

Finite Element Analysis of Structural Parts

• Use the bulldozer database information to conduct FEA (strength, fatigue life) analysis on all structural parts, and at the same time conduct OMSA (stress-strain test) analysis and verification on the stress concentration location to ensure structural strength and service life
• Structural parts welding process is adopted to eliminate weld stress and further improve structural strength

Modular Cooling System

• Standard hydraulic temperature-controlled fan, fan speed can be adjusted according to environmental needs, with automatic fan reversal function, the reversal time interval can be set by yourself, and the manual reversal function is added to save fuel consumption and facilitate radiator cleaning
• Modular design, easy to disassemble, easy to maintain, only need to replace the corresponding module after damage. Louver-type front grille, which can be opened in one direction, has good heat dissipation effect and convenient maintenance
• With low-temperature start-up function, it is convenient for the whole machine to start in a low-temperature environment
• Standard 50 degrees Celsius high temperature environment cooling package

maintenance

• Eliminate transmission components such as torque converter, gearbox and rear axle box, reducing maintenance costs
• ECM fault diagnosis system, automatic diagnosis of faults in the electrical system of the whole vehicle
• The replacement cycle of hydrostatic oil is 2000 hours, reducing the cost of use
• Three-level alarm system, automatic fault diagnosis
• External working valve, easy to check and maintain

Model	SEM 822D
Operating Weight	23680kg
Ground Pressure	70 kPa
Ground Clearance	394 mm
Max. Slope	30^°
Engine
Model	Weichai WD12G240E26
Flywheel Power	162Kw/220Hp
Work Tool
Blade Type	SU
Blade Capacity	6.4 m³(U 7.5 m³)
Blade Width	3720 mm(U 4015 mm)
Blade Height	1511 mm
Max.Blade Lift Ground Clearance	1140mm
Max. Blade Digging Depth	563mm
Max.Output Rimpull	350KN
Maximum Clearance Under Tip	640mm
Maximum Digging Depth Of Ripper	650mm
Powertrain
Type	Electric control,Dual-path,Hydrostatic Drive
Travel Speed-F/R	0-11.5km/hr(Infinitely Variable Speed Control)
Streeing & Brake	Hydrostatic Streeing,Wet,Multiple-Disc Brakes
Minimum Streeing Radius	4225mm
Undercarrige
Track Shoe Width	560mm
Track Shoe Quantity	40 piece
Length Of Track On Ground	2948mm
Track Gauge	2000mm
Track Roller Quantity	7/Side
Carrier Roller Quantity	2/Side
Hydraulic System
Type	Pilot Control
Implement Hydraulic System Pressure	19 Mpa
Service Refill Capacities
Cooling System	45L
Hrdrostatic Oil	62L
Implement Oil	110L
Fuel	460L
Pivot Shaft Case(Eash side)	0.8L