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SEM921

SEM921

Advantages

* High Productivity: Load sensing hydraulic system provides consistent and precise blade movement

* High Reliability: A-frame designed drawbar provides strength in all blade positions

* Comfort: World Class industry control layout with low lever efforts for reduced operator fatigue

Inquiry
Features Specification Video Photo

SEM Tandem Axle

  • Leveraging Caterpillar designing and experience on MG tandem axle
  • Improved bearing Layout and optimized load distribution with 4 planetary gears final drive
  • Less down time and reduced labor and service cost for maintenance and repairing
  • Longer service interval for lubrication oil change
  • Leading in class manufacturing and quality control level, mandatory  performance testing before delivering to MG assembly line

Control System

  • 7 position link bar with electric over hydraulic control allows ease of operation from within the cab
  • Optimum blade reach capability, quick DCM re-positioning for greater reach for better working on high bank side slope
  • The link bar is essential for extending reach capability when cutting a bank slope or back slope of a ditch
  • Replaceable bushings reduce service time and cost

Blade Float

  • Standard blade float function allows blade to lower without hydraulic pressure for increased versatility
  • Blade float is engaged by pushing the left and right lift cylinder controls all the way forward past the detent
  • Provides protection for machine and pavement during snow removal and snow plowing

Hydraulic System

  • Proportional Priority Pressure Compensating (PPPC) Valves contain specifically cut spools for motor grader applications, continuously matching of hydraulic flow and pressure to power demands, allowing ease of multi-function control for optimizing working efficiency
  • World-class variable displacement piston pump, efficiently reduces power consumption and hydraulic system heat, improving fuel efficiency
  • Load-sensing hydraulic system provides consistent and precise blade movement, improving finishing performance
  • Inboard lock check valves within PPPC, prevents inadvertent cylinder movement and potential leaks

Drawbar

  • A-frame tubular design drawbar provides maximum strength and durability
  • Replaceable drawbar draft ball (bolted – not welded) for less service time and cost
  • Easy removal of wear shims to adjust drawbar

Front Frame

  • Flanged box section design removes welds from high stress areas, improving reliability and durability
  • Continuous top and bottom plate construction provides consistency and strength, improving front frame durability
  • Hydraulic hose routing minimizes exposure to damage and provides quick access for service
  • Maintenance-free bushings improve durability and reduce overall service cost

Control Layout

  • Short throw levers are efficiently spaced, allowing ease of multi-function control
  • Short lever travel (40mm) with low lever effort reduces operator fatigue

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.

Large Cab

  • High performance dashboard with 3 levels alarming monition system
  • Cab mounted on the front frame provides exceptional view to blade and front axle even during articulation
  • Large cab with 1.9m height and 30% larger space than most competitors, provides exceptional comfort
  • Item
    Unit
    Params
  • Items
     
    SEM921
  • Operation Weight (Base Machine)
    kg
    15,930
  • Overall Dimensions (L*W*H)
    mm
    8,854*2,630*3,360
  • Blade Length (L*W*H)
    mm
    4,279*25*607
  • Max. Lifting Height
    mm
    475
  • Max. Depth of Cut
    mm
    715
  • Max. Drawbar
    kN
    ≥85
  • Wheelbase
    mm
    6,140
  • Frame Articulation Angle
    °
    20
  • Min. Turning Radius
    m
    7.8
  • Engine Brand
     
    SDEC SC9DK220G3
  • Rated power
    kW
    162
  • Transmission Type
     
    Hangchi 6WG180
  • Travel Speed (Forward/Rear)
    km/h
    40/25
  • Rear Axle/Tandem
     
    SEM ST22
  • Service brake
     
    Outboard disc with brake caliper,Air to oil Control
  • Oscillation (Front up/Rear up)
    °
    15/25
  • Max. Oscillation Angle
    °
    ±16
  • Steering Angle (Left/Right)
    °
    47.5
  • Max. Lean Angle of Front Wheels
    °
    18
  • Hydraulic System
     
    Load sensing,PPPC
  • Service Refill Capacity
  • Fuel Tank
    L
    320
  • Engine Oil
    L
    22
  • Coolant
    L
    65
  • Transmission
    L
    28
  • Rear Axle (Main Reducer & Tandem)
    L
    157
  • Circle Drive (Standard)
    L
    2
  • Circle Drive (with Slip Clutch)
    L
    7
  • Hydraulic Oil Tank
    L
    55
  • TV Show of SEM Motor Grader in Uruguay


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