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SEM822D

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SEM822D
Operating Weight (w. SU blade, Ripper): 26,520kg
Ground Pressure (GB/T 30965): 71.2kPa
Minimum Ground Clearance (Excludes Grouser Height): 400mm
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Product Description

SEM822D

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

SEM822D

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

SEM822D

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

SEM822D

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

SEM822D

Structures

  • Machine structures are analyzed using Finite Element Analysis (FEA) and On Machine Stress Analysis (OMSA) to identify and protect high stress areas
  • Advanced structure welding technique, relieving welding stress.

SEM822D

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

SEM822D

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

SEM822D

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
Model
Model822D
ConfigurationSTDLGPCHDSWHFR
Main Specifications
Operating Weight (w. SU blade, Ripper)26,520kg27,880kg27,280kg27,140kg28,560kg28,280kg
Ground Pressure (GB/T 30965)71.2kPa43.0kPa62.4kPa41.7kPa43.8kPa76.5kPa
Minimum Ground Clearance (Excludes Grouser Height)400mm
Gradeability30°
Engine
Engine ModelWD10G178E25
Advertised Power (ISO 14396)175kW
Rated Speed1,800r/min
Powertrain
Transmission TypeDual-path, closed loop electronically controlled hydrostatic drive system
Travel Speeds - Forward and ReverseInfinitely variable speeds 0-10 km/h
Steering and Brakehydrostatic steering; wet,multi-disc brake
Implement Hydraulic
Typecenter close, pilot control
System Pressure19MPa
Pump TypeGear pump
Blades
Blade TypeSU/SLGP SCoal/ULGP SWHForestry
Blade Capacity (ISO 9246)6.4m³/5.8m³5.5m³9.2m³/7.5m³5.5m³12.7m³8.7m³
Blade Width (w/End Bit)3,660mm/3,800mm4,510mm3,900mm4,510mm4,510mm3,660mm
Blade Height11,520mm/1,510mm1,350mm1,620mm/1,420mm1,350mm1,945mm1,830mm
Blade Lifting Height1,140mm1,165mm1,140mm1,165mm1,165mm1,140mm
Blade Digging Depth570mm665mm570mm665mm665mm570mm
Blade Tilt Height (Middle Hole)540mm640mm550mm640mm640mm540mm
Blade Weight (w/o Push Arm)1,645kg2,085kg2,242kg2,085kg2,442kg2,050kg
Minimum Turning Radius4,215kg4,300kg4,500kg4,300kg4,300kg4,215kg
Single Shank Rippers
TypeParallelogram (with pitch adjustment)
Maximum Penetration (Shank Pinned in the Top Hole)860mm
Maximum Clearance Under Tip (Shank Pinned in the Bottom Hole)640mm/742mmN/A640mm742mm615mm615mm
Ripper Weight2,390kgN/A2,390kgN/AN/A2,390kg
Undercarriage
Track Shoe Width560mm915mm660mm915mm915mm560mm/660mm
Track Shoes Number (Each Side)404540454540
Track Rollers Number (Each Side)787887
Carrier Roller Number (Each Side)222222

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