938M Aggregate Handler

M Series Small Wheel Loaders | At Work M Series Small Wheel Loaders | At Work
M Series Small Wheel Loaders | Overview M Series Small Wheel Loaders | Overview
Built in Quality: Cat® Small Wheel Loaders Manufactured in Clayton, NC Built in Quality: Cat® Small Wheel Loaders Manufactured in Clayton, NC
Safety and Service Overview | Cat® 926M, 930M, 938M Small Wheel Loader Safety and Service Overview | Cat® 926M, 930M, 938M Small Wheel Loader
Kick-Outs, Snubbing, Wrap-Out and Soft Detents | M Series Small Wheel Loader Operator Tips Kick-Outs, Snubbing, Wrap-Out and Soft Detents | M Series Small Wheel Loader Operator Tips
Secondary Display Navigation | M Series Small Wheel Loader Operator Tips Secondary Display Navigation | M Series Small Wheel Loader Operator Tips
Preventative Maintenance | M Series Small Wheel Loader Operator Tips Preventative Maintenance | M Series Small Wheel Loader Operator Tips
Coded Start Feature/Individual Operator Profiles | M Series Small Wheel Loader Operator Tips Coded Start Feature/Individual Operator Profiles | M Series Small Wheel Loader Operator Tips
Creeper Control | M Series Small Wheel Loader Operator Tips Creeper Control | M Series Small Wheel Loader Operator Tips
Rim Pull | M Series Small Wheel Loader Operator Tips Rim Pull | M Series Small Wheel Loader Operator Tips
Efficient Hystat Operation | M Series Small Wheel Loader Operator Tips Efficient Hystat Operation | M Series Small Wheel Loader Operator Tips
Throttle Lock | M Series Small Wheel Loader Operator Tips Throttle Lock | M Series Small Wheel Loader Operator Tips
Fine Mode Control and Perfect Parallelism | M Series Small Wheel Loader Operator Tips Fine Mode Control and Perfect Parallelism | M Series Small Wheel Loader Operator Tips
Quick Steer | M Series Small Wheel Loader Operator Tips Quick Steer | M Series Small Wheel Loader Operator Tips
Power Train Modes | M Series Small Wheel Loader Operator Tips Power Train Modes | M Series Small Wheel Loader Operator Tips
Cab Controls and Features | M Series Small Wheel Loader Operator Tips Cab Controls and Features | M Series Small Wheel Loader Operator Tips
Hydro-mechanical Applications | M Series Small Wheel Loader Operator Tips Hydro-mechanical Applications | M Series Small Wheel Loader Operator Tips
Third and Fourth Auxiliary Flow | M Series Small Wheel Loader Operator Tips Third and Fourth Auxiliary Flow | M Series Small Wheel Loader Operator Tips
Reversing Fan | M Series Small Wheel Loader Operator Tips Reversing Fan | M Series Small Wheel Loader Operator Tips
Customize Your Experience | M Series Small Wheel Loader Operator Tips Customize Your Experience | M Series Small Wheel Loader Operator Tips
Diesel Exhaust Fluid (DEF) Fill Alarm | M Series Small Wheel Loader Operator Tips Diesel Exhaust Fluid (DEF) Fill Alarm | M Series Small Wheel Loader Operator Tips
Cat® Production Measurement (CPM) | M and K Series Small Wheel Loader Operator Tips Cat® Production Measurement (CPM) | M and K Series Small Wheel Loader Operator Tips
Cat® Production Measurement (CPM) Updates | M and K Series Small Wheel Loader Operator Tips Cat® Production Measurement (CPM) Updates | M and K Series Small Wheel Loader Operator Tips
Differential Lock | M Series Small Wheel Loader Operator Tips Differential Lock | M Series Small Wheel Loader Operator Tips
Tire Pressure Monitoring System | M Series Small Wheel Loader Operator Tips Tire Pressure Monitoring System | M Series Small Wheel Loader Operator Tips
Tire Pressure Monitoring System Updates | M Series Small Wheel Loader Operator Tips Tire Pressure Monitoring System Updates | M Series Small Wheel Loader Operator Tips
Engine Idle Shutdown | M and K Series Small Wheel Loader Operator Tips Engine Idle Shutdown | M and K Series Small Wheel Loader Operator Tips
Continuously Adjustable Creep Mode | M and K Series Small Wheel Loader Operator Tips Continuously Adjustable Creep Mode | M and K Series Small Wheel Loader Operator Tips
Operator ID and Machine Security | M and K Series Small Wheel Loader Operator Tips Operator ID and Machine Security | M and K Series Small Wheel Loader Operator Tips

SPECS SUMMARY

Engine Model Cat® C7.1 ACERT™
Maximum Rated Gross Power - ISO 14396 188 HP (140 kW)
Maximum Rated Gross Power - ISO 14396 (DIN) 190 HP (140 kW)
Maximum Rated Gross Power - ISO 14396 (DIN) (Performance Power Mode: Range 1-4) 190 HP (140 kW)
The Cat 938M Aggregate Handler sets a new standard for productivity, fuel efficiency and comfort. A high torque, low speed C7.1 ACERT 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 the new industry benchmark.


Specifications

Engine Model Cat® C7.1 ACERT™
Maximum Rated Gross Power - ISO 14396 188 HP (140 kW)
Maximum Rated Gross Power - ISO 14396 (DIN) 190 HP (140 kW)
Maximum Rated Gross Power - ISO 14396 (DIN) (Performance Power Mode: Range 1-4) 190 HP (140 kW)
Maximum Rated Gross Power - ISO 14396 (Performance Power Mode: Range 1-4) 188 HP (140 kW)
Maximum Rated Gross Power - Maximum Engine Speed (Performance Power Mode: Range 1-4) 1800 r/min (1800 r/min)
Rated Net Power 182 HP (136 kW)
Rated Net Power - 1,800 rpm - ISO 9249 (1977)/EEC 80/1269 at Minimum Fan Speed (Performance Power Mode: Range 1-4) 184 HP (137 kW)
Rated Net Power - 1,800 rpm - SAE J1349 at Minimum Fan Speed (Performance Power Mode: Range 1-4) 182 HP (136 kW)
Bucket Capacities 2.9-3.2 m3 (3.8-4.2 yd3)
Operating Weight 36075 lb (16368 kg)
Maximum Gross Power 188 HP (140 kW)
Bore 4 in (105 mm)
Stroke 5 in (135 mm)
Displacement 427 in³ (7.01 l)
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 (1) * 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 closed.
Note (2) The Blue Angel environmental label is an optional attachment for Europe only.
Emissions Engine meets U.S. EPA Tier 4 Final/EU Stage IV emission standards.
Maximum Gross Torque - ISO 14396 (Performance Power Mode: Range 1-4) 648 ft·lbf (879 N·m)
Maximum Gross Torque - ISO 14396 (Standard Power Mode: Range 1-3*) 648 ft·lbf (879 N·m)
Maximum Net Torque - ISO 9249 (1977)/EEC 80/1269 (Performance Power Mode: Range 1-4) 628 ft·lbf (852 N·m)
Maximum Net Torque - ISO 9249 (1977)/EEC 80/1269 (Standard Power Mode: Range 1-3*) 628 ft·lbf (852 N·m)
Maximum Net Torque - SAE J1349 (Performance Power Mode: Range 1-4) 621 ft·lbf (843 N·m)
Maximum Net Torque - SAE J1349 (Standard Power Mode: Range 1-3*) 621 ft·lbf (843 N·m)
Maximum Rated Gross Power - ISO 14396 (DIN) (Standard Power Mode: Range 1-3*) 175 HP (129 kW)
Maximum Rated Gross Power - ISO 14396 (Standard Power Mode: Range 1-3*) 173 HP (129 kW)
Maximum Rated Gross Power - Maximum Engine Speed (Standard Power Mode: Range 1-3*) 1600 r/min (1600 r/min)
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 - 1,600 rpm - ISO 9249 (1977)/EEC 80/1269 at Minimum Fan Speed (Standard Power Mode: Range 1-3*) 169 HP (126 kW)
Rated Net Power - 1,600 rpm - ISO 9249 (DIN) at Minimum Fan Speed (Standard Power Mode: Range 1-3*) 171 HP (126 kW)
Rated Net Power - 1,600 rpm - SAE J1349 at Minimum Fan Speed (Standard Power Mode: Range 1-3*) 168 HP (125 kW)
Rated Net Power - 1,800 rpm - ISO 9249 (DIN) at Minimum Fan Speed (Performance Power Mode: Range 1-4) 186 HP (137 kW)
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
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 - 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 - Total Cycle Time 9.7/10.6 seconds
Lift Cylinder, Double Acting - Bore Diameter 4.7 in (120 mm)
Lift Cylinder, Double Acting - Rod Diameter 2.6 in (65 mm)
Lift Cylinder, Double Acting - Stroke 31.1 in (789 mm)
Maximum Flow - Implement Pump 50 gal/min (190 l/min)
Maximum Flow - Implement Pump - 3rd Function* 50 gal/min (190 l/min)
Maximum Working Pressure - Implement Pump 4061 psi (28000 kPa)
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 (2) Flow values listed are for a machine running in Performance Power Mode (1,800 rpm)
Note (3) * 3rd function flow is fully adjustable from 20% to 100% of maximum flow through the secondary display when equipped.
Relief Pressure - Tilt Cylinder 4351 psi (30000 kPa)
Relief Pressure - Tilt Cylinder - 3rd Function Maximum Working Pressure 4061 psi (28000 kPa)
Relief Pressure - Tilt Cylinder - 3rd Function Relief Pressure 4351 psi (30000 kPa)
Tilt Cylinder, Double Acting - Bore Diameter 5.9 in (150 mm)
Tilt Cylinder, Double Acting - Rod Diameter 3.5 in (90 mm)
Tilt Cylinder, Double Acting - Stroke 21.9 in (555 mm)
Full Turn Tip Load 23466 lb (10647 kg)
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
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
Cooling System 8.5 gal (US) (32 l)
Diesel Exhaust Fluid (DEF) Tank 5 gal (US) (19 l)
Engine Crankcase 5.3 gal (US) (20 l)
Front Axles 9.2 gal (US) (35 l)
Fuel Tank 51.5 gal (US) (195 l)
Hydraulic System - Including Tank 44.9 gal (US) (170 l)
Hydraulic Tank 23.8 gal (US) (90 l)
Rear Axles 9.2 gal (US) (35 l)
Transmission - Gear Box 2.9 gal (US) (11 l)
Maximum Flow - Steering Pump 34 gal/min (130 l/min)
Maximum Steering Torque - 0° (Straight Machine) 42506 ft·lbf (57630 N·m)
Maximum Steering Torque - 40° (Full Turn) 31398 ft·lbf (42570 N·m)
Maximum Working Pressure - Steering Pump 3500 psi (24130 kPa)
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 Cycle Times - Full Left to Full Right - Maximum RPM: 90 rpm Steering Wheel Speed 2.3 s (2.3 s)
Steering Cycle Times - Full Left to Full Right - Minimum RPM: Pump Flow Limited 3.1 s (3.1 s)
Steering Cylinder, Double Acting - Bore Diameter 3.1 in (80 mm)
Steering Cylinder, Double Acting - Rod Diameter 2 in (50 mm)
Steering Cylinder, Double Acting - Stroke 15.7 in (399 mm)
Forward and Reverse - Range 1* 1-13 km/h (0.6-8 mph)
Forward and Reverse - Range 2 8 mile/h (13 km/h)
Forward and Reverse - Range 3 17 mile/h (27 km/h)
Forward and Reverse - Range 4 25 mile/h (40 km/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).

Benefits and Features

Work as one with your machine by customizing the controls.

Independent service brakes on front and rear axles provide robust stopping performance while a push button electronic park brake allows you to safely secure the machine with ease.

Get up and running quickly with ground level, daily service access and optional engine compartment lighting. Three large service doors can be opened and closed in any order to give full access to filters and service points. Extended service intervals on hydraulic and power train filters reduce service time and maximize uptime. Additional service features include:

  • Product Link™ PRO standard with three year subscription to VisionLink®.
  • Maintenance reminders through secondary display at scheduled intervals.
  • Fit for Life Diesel Particulate Filter that is designed to exceed the engine overhaul life.
  • Quick fuel filter service with Caterpillar's exclusive electric fuel priming pump.
  • Jump start studs as standard equipment.
  • Extended cleanouts with single plane cooling system and wide spaced 6 fins per inch coolers as standard.
  • Integrated Autolube (optional) with adjustable greasing frequency.

Maximize your machine uptime with unsurpassed worldwide parts availability, trained technicians and customer support agreements.

Let us earn your business. Experience an M Series Small Wheel Loader and join the Caterpillar family.