Cat Wheel Loaders:

938M Aggregate Handler Small Wheel Loader

Operating Weight
36075 lb
Bucket Capacities
2.9-3.2 m3 (3.8-4.2 yd3)
Engine Model
Cat® C7.1 ACERT™
Transmission (Gear Box)
2.9 gal

The Cat® 938M Aggregate Handler sets a new standard for productivity, fuel efficiency and comfort. A high torque, low speed C7.1 engine works in concert with an intelligent hystat power train to deliver fuel efficiency as standard. The optimized Z-bar loader linkage combined with long wear life Performance Series buckets delivers improved payloads and bucket longevity. Extremely low sound levels, large spacious cab and intuitive controls keep you working comfortably all day and even all night! Experience this industry benchmark.



Product Specs

  • Weights

  • Operating Weight
    36075lb
    Operating Weight (1)
    16 199 kg (35,712 lb)**
    Note (2)
    ^Aggregate Handler equipped with full counterweight, optional guards, roading fenders, cold start package, and 23.5R25 tires.
    Note (1)
    **Aggregate Handler machine equipped with full counterweight and optional guards.
    Operating Weight
    36839lb
  • Buckets

  • Bucket Capacities
    2.9-3.2 m3 (3.8-4.2 yd3)
    Bucket Capacities
    2.9-5.0 m3 (3.8-6.5 yd3)
  • Engine

  • Engine Model
    Cat® C7.1 ACERT™
    Emissions
    Engine meets U.S. EPA Tier 4 Final/EU Stage IV emission standards.
    Stroke
    5in
    Note
    * Range 4 power and torque is equal to Performance Mode with Caterpillar Power by Range technology.
    Note
    Net power ratings are tested at the reference conditions for the specified standard and denote power available at the flywheel when the engine is equipped with alternator, air cleaner, emission components and fan at specified speed.
    Note
    No derating required up to 3000 m (10,000 ft) altitude. Auto derate protects hydraulic and transmission systems.
    Note
    Spark arrester performance as standard – Meets the performance requirements of EN 1834-1.2000 (section 6.4.2 Visual Test).
    Maximum Gross Power
    188hp
    Maximum Gross Power - ISO 14396 (Performance Power Mode: Range 1-4)
    188HP
    Maximum Gross Power - Maximum Engine Speed (Performance Power Mode: Range 1-4)
    1800r/min
    Maximum Gross Power - Maximum Engine Speed (Standard Power Mode: Range 1-3*)
    1600r/min
    Maximum Gross Power - ISO 14396 (Standard Power Mode: Range 1-3*)
    173HP
    Engine Model
    Cat® C7.1
    Maximum Gross Power
    188HP
    Bore
    4in
    Stroke
    5in
    Displacement
    427in³
    Emissions
    The Cat C7.1 engine meets U.S. EPA Tier 4 Final, EU Stage V and Korea Tier 4 Final emission standards.
    Note (1)
    *Range 4 power and torque is equal to Performance Mode with Caterpillar Power by Range technology.
    Note (2)
    Net power ratings are tested at the reference conditions for the specified standard and denote power available at the flywheel when the engine is equipped with alternator, air cleaner, emission components and fan at specified speed.
    Note (3)
    No derating required up to 3000 m (10,000 ft) altitude. Auto derate protects hydraulic and transmission systems.
    Note (4)
    Spark arrester performance as standard – Meets the performance requirements of EN 1834-1.2000 (section 6.4.2 Visual Test).
    Rated Net Power
    182HP
    Maximum Rated Gross Power - ISO 14396
    188HP
    Maximum Rated Gross Power - ISO 14396 (DIN)
    188HP
    Maximum Rated Gross Power - Maximum Engine Speed (Performance Power Mode: Range 1-4)
    1800r/min
    Maximum Rated Gross Power - ISO 14396 (Performance Power Mode: Range 1-4)
    188HP
    Maximum Rated Gross Power - ISO 14396 (DIN) (Performance Power Mode: Range 1-4)
    188HP
    Rated Net Power - 1,800 rpm - SAE J1349 at Minimum Fan Speed (Performance Power Mode: Range 1-4)
    182HP
    Rated Net Power - 1,800 rpm - ISO 9249 (1977)/EEC 80/1269 at Minimum Fan Speed (Performance Power Mode: Range 1-4)
    184HP
    Rated Net Power - 1,800 rpm - ISO 9249 (DIN) at Minimum Fan Speed (Performance Power Mode: Range 1-4)
    186HP
    Maximum Gross Torque - ISO 14396 (Performance Power Mode: Range 1-4)
    664ft·lbf
    Maximum Net Torque - SAE J1349 (Performance Power Mode: Range 1-4)
    649ft·lbf
    Maximum Net Torque - ISO 9249 (1977)/EEC 80/1269 (Performance Power Mode: Range 1-4)
    628ft·lbf
    Maximum Rated Gross Power - Maximum Engine Speed (Standard Power Mode: Range 1-3*)
    1600r/min
    Maximum Rated Gross Power - ISO 14396 (Standard Power Mode: Range 1-3*)
    173HP
    Maximum Rated Gross Power - ISO 14396 (DIN) (Standard Power Mode: Range 1-3*)
    175HP
    Rated Net Power - 1,600 rpm - SAE J1349 at Minimum Fan Speed (Standard Power Mode: Range 1-3*)
    168HP
    Rated Net Power - 1,600 rpm - ISO 9249 (1977)/EEC 80/1269 at Minimum Fan Speed (Standard Power Mode: Range 1-3*)
    169HP
    Rated Net Power - 1,600 rpm - ISO 9249 (DIN) at Minimum Fan Speed (Standard Power Mode: Range 1-3*)
    171HP
    Maximum Gross Torque - ISO 14396 (Standard Power Mode: Range 1-3*)
    642ft·lbf
    Maximum Net Torque - SAE J1349 (Standard Power Mode: Range 1-3*)
    627ft·lbf
    Maximum Net Torque - ISO 9249 (1977)/EEC 80/1269 (Standard Power Mode: Range 1-3*)
    628ft·lbf
    Displacement
    427in3
    Bore
    4in
  • Service Refill Capacities

  • Transmission (Gear Box)
    2.9gal
    Front Axles
    9.2gal (US)
    Rear Axles
    9.2gal (US)
    Hydraulic System (Including Tank)
    44.9gal
    Hydraulic Tank
    23.8gal
    Diesel Exhaust Fluid (DEF) Tank
    5.0gal
    Cooling System
    8.5gal (US)
    Diesel Exhaust Fluid (DEF) Tank
    5gal (US)
    Engine Crankcase
    5.3gal (US)
    Fuel Tank
    51.5gal (US)
    Hydraulic System - Including Tank
    44.9gal (US)
    Hydraulic Tank
    23.8gal (US)
    Transmission - Gear Box
    2.9gal (US)
    Fuel Tank
    51.5gal
    Cooling System
    8.5gal
    Engine Crankcase
    5.3gal
  • Transmission

  • Forward and Reverse - Range 1*
    1-13 km/h (0.6-8 mph)
    Forward and Reverse - Range 2
    8mile/h
    Forward and Reverse - Range 3
    17mile/h
    Forward and Reverse - Range 4
    25mile/h
    Note
    * Creeper control allows maximum speed range adjustability from 1 km/h (0.6 mph) to 13 km/h (8 mph) in Range 1 through the secondary display when equipped. Factory default is 7 km/h (4.4 mph).
    Note
    * Creeper control allows maximum speed range adjustability from 1 km/h (0.6 mph) to 13 km/h (8 mph) in Range 1 through the secondary display when equipped. Factory default is 7 km/h (4.4 mph).
  • Cab

  • ROPS
    ISO 3471: 2008, FOPS: ISO 3449: 2005 LEVEL II
    Declared Sound Levels
    – Operator Sound Pressure Level (ISO 6396:2008): 68 dB(A)* – Exterior Sound Power Level (ISO 6395:2008): 101 dB(A)*
    Note
    * Measurements were conducted at 70% of maximum engine cooling fan speed. Sound level may vary at different engine cooling fan speeds. The cab was properly installed and maintained. The measurements were conducted with the cab doors and the cab windows cl
    Note
    The Blue Angel environmental label is an optional attachment for Europe only.
    FOPS
    ISO 3449:2005 LEVEL II
    ROPS
    ISO 3471:2008
    Declared Sound Levels
    Declared Sound Levels
    – Operator Sound Pressure Level (ISO 6396:2008): 68 dB(A)*
    – Exterior Sound Power Level (ISO 6395:2008): 101 dB(A)*
    Note (1)
    * Measurements were conducted with cab doors and windows closed and at 70% of maximum engine cooling fan speed. Sound level may vary at different engine cooling fan speeds.
    Note (2)
    The Blue Angel environmental label is an optional attachment for Europe only.
  • Operating Specifications

  • Full Turn Tip Load
    23466lb
    Note (2)
    ^Aggregate Handler equipped with full counterweight, optional guards, roading fenders, cold start package, and 23.5R25 tires.
    Note (1)
    **Aggregate Handler machine equipped with full counterweight and optional guards.
    Full Turn Tip Load
    23466lb
  • Loader Hydraulic System

  • Cycle Times - Performance (HP+) at 1,800 rpm/Standard Power Mode at 1,600 rpm - Float Down (Maximum Lift to Ground Level)
    2.7/2.7 seconds
    Cycle Times - Performance (HP+) at 1,800 rpm/Standard Power Mode at 1,600 rpm - Total Cycle Time
    9.7/10.6 seconds
    Note (1)
    Implement system uses a dedicated load sensing variable displacement pump with dual double acting lift cylinders and a single double acting tilt cylinder.
    Note
    Flow values listed are for a machine running in Performance Power Mode (1,800 rpm)
    Note
    * 3rd function flow is fully adjustable from 20% to 100% of maximum flow through the secondary display when equipped.
    Maximum Flow - Implement Pump - 4th Function Maximum Flow*
    42gal/min
    Lift Cylinder, Double Acting - Bore Diameter
    4.7in
    Lift Cylinder, Double Acting - Rod Diameter
    2.6in
    Lift Cylinder, Double Acting - Stroke
    31.1in
    Maximum Flow - Implement Pump
    50gal/min
    Maximum Working Pressure - Implement Pump
    4061psi
    Note (2)
    Flow values listed are for a machine running in Performance Power Mode (1,800 rpm).
    Note (3)
    * 3rd and 4th function flow is fully adjustable from 20% to 100% of maximum flow through the secondary display when equipped.
    Relief Pressure - Tilt Cylinder
    4351psi
    Relief Pressure - Tilt Cylinder - 3rd Function Maximum Working Pressure
    4061psi
    Relief Pressure - Tilt Cylinder - 3rd Function Relief Pressure
    4351psi
    Tilt Cylinder, Double Acting - Bore Diameter
    5.9in
    Tilt Cylinder, Double Acting - Rod Diameter
    3.5in
    Tilt Cylinder, Double Acting - Stroke
    21.9in
    Maximum Flow – Implement Pump
    50gal/min
    Maximum Flow - Implement Pump - 3rd Function*
    50gal/min
    Maximum Working Pressure – Implement Pump
    4061psi
    Relief Pressure – Tilt Cylinder
    4351psi
    Relief Pressure - Tilt Cylinder - 3rd and 4th Function Maximum Working Pressure
    4061psi
    Relief Pressure - Tilt Cylinder - 3rd and 4th Function Relief Pressure
    4351psi
    Lift Cylinder: Double Acting – Bore Diameter
    4.7in
    Lift Cylinder: Double Acting – Rod Diameter
    2.6in
    Lift Cylinder: Double Acting – Stroke
    31.1in
    Tilt Cylinder: Double Acting – Bore Diameter
    5.9in
    Tilt Cylinder: Double Acting – Rod Diameter
    3.5in
    Tilt Cylinder: Double Acting – Stroke
    21.9in
    Cycle Times - Performance (HP+) at 1,800 rpm/Standard Power Mode at 1,600 rpm - Raise (Ground Level to Maximum Lift)
    5.5/6.2 seconds
    Cycle Times - Performance (HP+) at 1,800 rpm/Standard Power Mode at 1,600 rpm - Dump (at Maximum Lift Height)
    1.5/1.7 seconds
  • Steering

  • Steering Cycle Times - Full Left to Full Right - Minimum RPM: Pump Flow Limited
    3.1s
    Steering Cycle Times - Full Left to Full Right - Maximum RPM: 90 rpm Steering Wheel Speed
    2.3s
    Note
    Steering system uses a dedicated load sensing variable displacement pump with dual double acting cylinders.
    Note
    Flow values listed are for a machine running in Performance Power Mode (1,800 rpm).
    Maximum Flow - Steering Pump
    34gal/min
    Maximum Steering Torque - 0° (Straight Machine)
    42506ft·lbf
    Maximum Working Pressure - Steering Pump
    3500psi
    Note (1)
    Steering system uses a dedicated load sensing variable displacement pump with dual double acting cylinders.
    Note (2)
    Flow values listed are for a machine running in Performance Power Mode (1,800 rpm).
    Steering Cylinder, Double Acting - Bore Diameter
    3.1in
    Steering Cylinder, Double Acting - Rod Diameter
    2in
    Steering Cylinder, Double Acting - Stroke
    15.7in
    Steering Cylinder: Double Acting – Bore Diameter
    3.1in
    Steering Cylinder: Double Acting – Rod Diameter
    2in
    Steering Cylinder: Double Acting – Stroke
    15.7in
    Maximum Flow – Steering Pump
    34gal/min
    Maximum Working Pressure – Steering Pump
    3500psi
    Maximum Steering Torque – 0° (Straight Machine)
    42506lbf-ft
    Maximum Steering Torque - 40° (Full Turn)
    31398ft·lbf
  • Power Train

  • Front Axle
    Fixed
    Front Axle: Traction Aid**
    Locking differential (standard)
    Rear Axle
    Oscillating
    Rear Axle - Oscillation Angle by Tire Size - 20.5 R25, 550/65, 600/65, 650/65
    ± 10.5 degrees
    Rear Axle - Oscillation Angle by Tire Size - 23.5 R25
    ± 7 degrees
    Rear Axle - Traction Aid - Optional
    Limited slip differential
    Brakes: Service
    Outboard wet disc
    Brakes: Park
    Spring applied hydraulically released
    Note
    Power train is governed by the Caterpillar exclusive Intelligent Power Management system to deliver peak performance and efficiency.
    Note
    Offset rims available to meet European roading requirements.
    Note
    **Differential front locking axle can be engaged on the go at full torque to 20 km/h (12.4 mph) on the 938M.
    Front Axle - Traction Aid*
    Locking differential (standard)
    Brakes - Parking
    Spring applied hydraulically released
    Brakes - Service
    Outboard wet disc
    Front Axle
    Fixed
    Front Axle - Traction Aid**
    Locking differential (standard)
    Note (1)
    Power train is governed by the Caterpillar exclusive Intelligent Power Management system to deliver peak performance and efficiency.
    Note (2)
    Offset rims available to meet European roading requirements.
    Note (3)
    *Differential front locking axle can be engaged on the go at full torque to 20 km/h (12.4 mph) on the 938M.
    Rear Axle
    Oscillating
  • Air Conditioning System

  • Air Conditioning
    The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential – 1430. The system contains 1.9 kg of refrigerant which has a CO2 equivalent of 2.717 metric tonnes.

Equipment

  • Power Train
    • Axle Duo-Cone seal guards
    • Axle seal guards
    • Auto idle shut down feature
    • Auto idle shut down feature
    • Cat C7.1 engine
      – Power modes (Standard and Performance)
      – Power by range (High Power in Range 4)
      – Turbocharged and aftercooled
      – Diesel particulate filter (Fit for Life)
    • Cat C7.1 ACERT engine: – Power Modes (Standard and Performance) – Power by Range (High Power in Range 4) – Turbocharged and aftercooled – Filtered crankcase breather – Diesel particulate filter (Fit for Life)
    • Coded start (requires secondary display)
    • Coolant protection to –34° C (–29° F)
    • Differential lock in front axle
    • Differential lock in front axle
    • Enclosed wet disc full hydraulic brakes
    • Dry type air cleaner
    • Hydraulically driven demand cooling fan
    • Enclosed wet disc full hydraulic brakes
    • Hydrostatic transmission with electronic control
      – Operator modes (Default, TC, Hystat, and Ice)
      – Directional Shift Aggressiveness (fast, medium, slow)
      – Rimpull control, adjust wheel torque
      – Creeper control, adjust ground speed
    • Fuel priming pump, automatic
    • Parking brake, electric
    • Fuel water separator
    • Single plane cooling package wide six fins per inch density
    • Hydraulically driven demand cooling fan
    • Oil sampling ports
    • Intelligent hydrostatic transmission: – Power train modes – Directional Shift Aggressiveness – Rimpull control, adjust wheel torque – Creeper control, adjust ground speed
    • Throttle lock and max speed limiter
    • Lubed for life driveshafts
    • Parking brake, electric
    • Wide spaced 6 fins per inch cooling package
    • S·O·SSM sampling ports
    • Throttle lock and maximum speed limiter
  • Hydraulics
    • Automatic lift lower and tilt kickouts, adjustable in-cab
    • Bucket and fork modes, adjustable in-cab
    • Cylinder damping at kickout and mechanical end stops
    • Fine mode control (fast, medium, slow)
    • Hydraulic response setting (fast, medium, slow)
    • Automatic lift, lower and tilt kickouts
    • Load sensing hydraulics and steering
    • Bucket and Fork Modes, adjustable in-cab
    • Seat-mounted hydraulic joystick controls
    • Cylinder damping at kickout and end stops
    • Fine Mode control in Fork Mode
    • Hydraulic Response setting
    • Load sensing hydraulics and steering
    • Seat-mounted hydraulic joystick controls
  • Electrical
    • Alternator, 115 amp, heavy duty
    • Batteries, 1,000 CCA (2) 24V system, disconnect switch
    • Back-up alarm
    • Emergency shutdown switch
    • Halogen work and roading lights, LED rear tail lights
    • Alternator, 115-amp, heavy duty
    • Product Link PRO with three year subscription
    • 12V power supply in cab (2)
    • Remote jump start post
    • Batteries, 1,000 CCA (2) 24 volt system
    • Resettable main and critical function breakers
    • Back-up alarm
    • Emergency shutdown switch
    • Heavy duty gear reduction starter
    • Product Link PRO with subscription
    • Remote jump start post
    • Resettable main and critical function breakers
  • Operator Environment
    • 75 mm (3 in) High-Vis retractable seat belt, with audible alarm and indicator
    • Automatic temperature control
    • Cab, pressurized
    • Camera, rearview
    • External heated mirrors with lower parabolic
    • Ground level cab door release
    • 75 mm (3 in) retractable seat belt, with audible alarm and indicator
    • Hydraulic control lockout
    • Automatic temperature control
    • Mirror, single
    • Cab, enclosed and pressurized
    • Lunch box storage
    • Cup holders
    • Radio ready speakers
    • External heated mirrors with lower parabolic
    • Rear window defrost, electric
    • Ground level cab door release
    • Column mounted multi function control – lights, wipers, turn signal
    • Gauges: – Digital hour meter, odometer, tachometer, ground speed and direction indicator – Engine coolant temperature gauge – Fuel and Diesel Exhaust Fluid level – Hydraulic oil temperature gauge
    • Tilt and telescopic steering wheel
    • Hydraulic control lockout
    • Tinted front glass
    • Interior cab lighting, door and dome
    • Wet arm wiper/washer, 2-speed and intermittent, front, lights, wipers, turn signal
    • Interior rearview mirrors (2)
    • Suspension seat, fabric
    • Lunch box storage
    • Operator warning system indicators
    • Radio ready speakers
    • Rear window defrost, electric
    • Seat-mounted controls, adjustable
    • Sliding glass on the side windows
    • Column mounted multi function control – lights, wipers, turn signal
    • Suspension seat, fabric
    • Tilt and telescopic steering wheel
    • Wet arm wiper/washer, front and rear
  • Other Standard Equipment
    • Large-access enclosure doors with adjustable close/open force
    • Cat optimized Z-bar linkage with parallel lift
    • Recovery hitch, with pin
    • Remote mounted lubrication points
    • Lockable compartments and enclosures
    • Large-access enclosure doors
    • Parallel lift loader linkage
    • Recovery hitch with pin
    • Remote mounted lubrication points
    • Lockable compartments and enclosures
  • Cab, Deluxe (standard In Europe):
    • Automatic blower control
    • Electrically adjustable heated mirrors (2)
    • LED interior lighting
    • Secondary display to adjust settings
  • Optional Equipment
    • Autolube, integrated in secondary display
    • Auxiliary flow, third and fourth function
    • Differential, limited slip, rear
    • Beacon light, strobe
    • Cab, deluxe (standard in Europe)
      – Camera, rearview integrated into advanced display
      – Electrically adjustable external heated mirrors (2)
      – Secondary display to enable features and adjust parameters
      – LED interior lighting
      – Sunscreen, front and rear
      – Touchscreen secondary display
      – Ride control adjustable speed activation
      – Preventative maintenance reminders
      – Integrated help function (26 languages)
    • Camera, roof mounted, front view with separate display
    • Cold start package
      – Ether starting aid, block heater and additional batteries, 1,000 CCA (4 total)
    • Counterweight, additional options
    • Coupler, (Fusion and ISO 23727)
    • Debris packages (low, medium, high)
    • Fenders (extended cover and full coverage)
    • Guarding packages
    • Linkage, high lift
    • Lights, auxiliary, halogen or LED with engine and DEF compartment lights
    • Payload Technology
      – Cat Production Measurement (CPM)
      – CPM Printer
    • Product Link ELITE with capabilities for software push, data logging, histogram and trend mapping
    • Radio packages
    • Rear Object Detection
    • Ride Control System, adjustable through secondary display
    • Seats
      – Deluxe seat – fully adjustable fabric air suspension seat with mid seat backrest
      – Premium seat – fully adjustable leather and fabric air suspension with high backrest and air lumbar support. Seat is heated and ventilated on bottom cushion and backrest.
    • Steering
      – Dual mode and secondary
    • Tire Pressure Monitoring (TPM)
  • Cold Start Package:
    • Ether starting aid, block heater and additional batteries 1,000 CCA (4 in total)
  • Guards
    • Power train, (lower, side, driveshaft and crankcase)
    • Windshield and lights
    • Cylinders, tilt and steering
  • Radio Packages:
    • Radio ready with Bluetooth
    • Radio, AM/FM with Bluetooth and clock
    • Radio, AM/FM with CD player deluxe, weatherband, Bluetooth and clock
  • Seats:
    • Deluxe seat – fully adjustable fabric air suspension seat with high seat backrest
    • Premium seat – fully adjustable leather and fabric air suspension with high backrest and air lumbar support. Heated and cooled bottom cushion and backrest.
  • Steering:
    • Dual mode and Secondary
  • Tires:
    • Bias ply, 17.5, 20.5-25
    • Radial, 17.5, 20.5, 23.5, 550/65, 600/65, 650/65 R25

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