Caterpillar 220HP (Sem822LGP) Bulldozer with Weichai Engine

Advantages

Efficient: The electronically controlled hydrostatic drive system and multi functional joystick provide high levels of performance and maneuverability

Comfortable Operation: The cabin is ergonomically designed for increased operator comfort and visibility. The advanced monitoring system tracks machine operating conditions and keeps the operator informed of all vital machines functions

Reliable: The proven hydrostat design along with world class pump and motors provide a highly reliable tractor. The undercarriage components are designed for longer life versus the leading competitor

Serviceability: The SEM tractors are designed for easy access to reduce overall maintenance time. The machines electronic control module allows for quick troubleshooting

Cat ® Product Link™

• Cat ® Product Link™ will support your business, and accurately convey information of the equipment to relevant personnel in a timely and effective manner for your better equipment management

Hydrostatic Drive System

• Upgraded hydrostatic system not only leverages Caterpillar automatic, dual path, hydro-static drive with electronic control technology of the third generation TTT, but also increas-es efficiency and reliability
• Adopt Rexroth German new generation drive pump to combine control valve, trackmotor, simplified hose line design, continue to increase the reliability
• Caterpillar high pressure hose provides reliability and durability. Caterpillar control technology provides accurate control and high transmission efficiency
• Integrated the hydrostatic oil tank and implement hydraulic oil tank to improve filtratedprecision and cooling capability of hydraulic system, increasing reliability and reducingmaintenance cost
• Maintenance costs are reduced by 60% when compared competitors with torque converter and transmission and rear axle
• Counter rotation, power turn and infinitely variable speed save lots of time, increasing working efficiency

Comfortable Operation

• Counter rotation – Tracks counter rotate to provide best in class maneuverability
•  Powered turn – Machine maintains full power through turns to increase productivity
•  Cruise control – Operators can retain previous speed settings which makes operation easily
• Multi-function joystick allows for counter-rotation, powered turn and cruise control
• Pilot joystick control provides comfortable precise blade operation

Semi-Universal Blade

• SU blade combines the excellent penetration of the S blade and the high production capacity of the U blade
• Designed for superior load retention and penetration in tightly packed materials
• L-shaped push arms bring the blade closer to the machine, providing excellent maneuverability, balance and blade penetration
• Blades feature a strong box section design, made from high tensile strength steel to stand up to the most severe applications

Undercarriage

• Undercarriage is provided by China industry expert ensures high reliability and resistance to wear
• Carrier rollers track rollers and idle rollers are all maintenance free
• Planetary final drive design delivers increased torque ratio for higher transmission efficiency and lower maintenance cost
• Durable final drive bearings and multiple wet discbrakes provide reliability, reduce system heat and extend overall life

Undercarriage

• Undercarriage is provided by China industry expert ensures high reliability and resistance to wear
• Carrier rollers track rollers and idle rollers are all maintenance free
• Planetary final drive design delivers increased torque ratio for higher transmission efficiency and lower maintenance cost
• Durable final drive bearings and multiple wet discbrakes provide reliability, reduce system heat and extend overall life

Modular Radiator

• New advanced cooling system designed to meet -40°C to +50°C ambient temperatures capability
• Modular designed radiator, easy to maintain remove and repair
• Radiator grill provides better heatdissipation, easy access or maintenance

Maintenance

• Electronic Control Module (ECM) fault diagnosis system,automatic diagnosis of eight key parameters
• Monitoring system provides three levels of alarm,to indicate fault diagnosis
• Hydrostatic system has longer service interval (2000 hrs),reduces maintenance time by 50%
• Implement valve mounted outside of hydraulic tank provides easy access to check and service

  Model	SEM 822
  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