938M Aggregate Handler
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.
Maximum Gross Power
188 HP
Bore
4 in
Stroke
5 in
Specification
Value
Maximum Gross Power
188 HP
Bore
4 in
Stroke
5 in
Displacement
427 in³
Maximum Gross Torque - ISO 14396 (Performance Power Mode: Range 1-4)
664 ft·lbf
Engine Model
Cat® C7.1
Maximum Gross Torque - ISO 14396 (Standard Power Mode: Range 1-3*)
642 ft·lbf
Maximum Gross Power - ISO 14396 (Performance Power Mode: Range 1-4)
188 HP
Maximum Gross Power - Maximum Engine Speed (Performance Power Mode: Range 1-4)
1800 r/min
Maximum Rated Gross Power - ISO 14396
188 HP
Maximum Gross Power - Maximum Engine Speed (Standard Power Mode: Range 1-3*)
1600 r/min
Maximum Net Torque - SAE J1349 (Performance Power Mode: Range 1-4)
649 ft·lbf
Note (3)
No derating required up to 3000 m (10,000 ft) altitude. Auto derate protects hydraulic and transmission systems.
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.
Maximum Gross Power - ISO 14396 (Standard Power Mode: Range 1-3*)
173 HP
Emissions
The Cat C7.1 engine meets U.S. EPA Tier 4 Final, EU Stage V and Korea Tier 4 Final emission standards.
Maximum Net Torque - SAE J1349 (Standard Power Mode: Range 1-3*)
627 ft·lbf
Maximum Net Torque - ISO 9249 (Performance Power Mode: Range 1-4)
650 ft·lbf
Net Power - ISO 9249 (metric) at Minimum Fan Speed (Performance Power Mode: Range 1-4)
186 HP
Net Power - ISO 9249 at Minimum Fan Speed (Performance Power Mode: Range 1-4)
184 HP
Maximum Gross Power - ISO 14396 (metric) (Performance Power Mode: Range 1-4)
190 HP
Net Power - SAE J1349 at Minimum Fan Speed (Performance Power Mode: Range 1-4)
183 HP
Net Power - SAE J1349 at Minimum Fan Speed (Standard Power Mode: Range 1-3*)
170 HP
Net Power (Standard Power Mode: Range 1-3*)
1600 r/min
Maximum Gross Power - ISO 14396 (metric) (Standard Power Mode: Range 1-3*)
176 HP
Net Power (Performance Power Mode: Range 1-4)
1800 r/min
Maximum Rated Gross Power - ISO 14396 (metric)
190 HP
Net Power - ISO 9249 (metric) at Minimum Fan Speed (Standard Power Mode: Range 1-3*)
172 HP
Maximum Net Torque - ISO 9249 (Standard Power Mode: Range 1-3*)
628 ft·lbf
Net Power - ISO 9249 at Minimum Fan Speed (Standard Power Mode: Range 1-3*)
170 HP
Specification
Value
Bucket Capacities
2.9-5.0 m3 (3.8-6.5 yd3)
Specification
Value
Operating Weight
36839 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 (2)
16 710 kg (36,839 lb)^
Operating Weight (1)
16 199 kg (35,712 lb)**
Specification
Value
ROPS
ISO 3471:2008
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.
FOPS
ISO 3449:2005 LEVEL II
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)*
– Operator Sound Pressure Level (ISO 6396:2008): 68 dB(A)*
– Exterior Sound Power Level (ISO 6395:2008): 101 dB(A)*
Specification
Value
Maximum Flow - Steering Pump
34 gal/min
Steering Cycle Times - Full Left to Full Right - Minimum RPM: Pump Flow Limited
3.1 s
Steering Cycle Times - Full Left to Full Right - Maximum RPM: 90 rpm Steering Wheel Speed
2.3 s
Steering Cylinder, Double Acting - Bore Diameter
3.1 in
Steering Cylinder, Double Acting - Rod Diameter
2 in
Steering Cylinder, Double Acting - Stroke
15.7 in
Note (1)
Steering system uses a dedicated load sensing variable displacement pump with dual double acting cylinders.
Maximum Working Pressure - Steering Pump
3500 psi
Note (2)
Flow values listed are for a machine running in Performance Power Mode (1,800 rpm).
Specification
Value
Relief Pressure - Tilt Cylinder - 3rd and 4th Function Relief Pressure
4351 psi
Relief Pressure - Tilt Cylinder - 3rd and 4th Function Maximum Working Pressure
4061 psi
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.
Tilt Cylinder, Double Acting - Bore Diameter
5.9 in
Relief Pressure - Tilt Cylinder
4351 psi
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 - Total Cycle Time
9.7/10.6 seconds
Tilt Cylinder, Double Acting - Rod Diameter
3.5 in
Maximum Flow - Implement Pump
50 gal/min
Note (2)
Flow values listed are for a machine running in Performance Power Mode (1,800 rpm).
Tilt Cylinder, Double Acting - Stroke
21.9 in
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
Maximum Flow - Implement Pump - 4th Function Maximum Flow*
42 gal/min
Note (3)
* 3rd and 4th function flow is fully adjustable from 20% to 100% of maximum flow through the secondary display when equipped.
Lift Cylinder, Double Acting - Stroke
31.1 in
Maximum Working Pressure - Implement Pump
4061 psi
Lift Cylinder, Double Acting - Bore Diameter
4.7 in
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
Lift Cylinder, Double Acting - Rod Diameter
2.6 in
Maximum Flow - Implement Pump - 3rd Function Maximum Flow*
50 gal/min
Specification
Value
Rear Axles
9.2 gal (US)
Hydraulic System - Including Tank
44.9 gal (US)
Hydraulic Tank
23.8 gal (US)
Diesel Exhaust Fluid (DEF) Tank
5 gal (US)
Engine Crankcase
5.3 gal (US)
Cooling System
8.5 gal (US)
Front Axles
9.2 gal (US)
Transmission - Gear Box
2.9 gal (US)
Fuel Tank
51.5 gal (US)
Specification
Value
Brakes - Parking
Spring applied hydraulically released
Rear Axle - Traction Aid - Optional
Limited slip differential
Rear Axle - Oscillation Angle by Tire Size - 23.5 R25
± 7 degrees
Rear Axle
Oscillating
Rear Axle - Oscillation Angle by Tire Size - 20.5 R25, 550/65, 600/65, 650/65
± 10.5 degrees
Note (2)
Offset rims available to meet European roading requirements.
Note (1)
Power train is governed by the Caterpillar exclusive Intelligent Power Management system to deliver peak performance and efficiency.
Brakes - Service
Outboard wet disc
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.
Front Axle
Fixed
Front Axle - Traction Aid*
Locking differential (standard)
Specification
Value
Forward and Reverse - Range 4
25 mile/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).
Forward and Reverse - Range 1*
1-13 km/h (0.6-8 mph)
Forward and Reverse - Range 2
8 mile/h
Forward and Reverse - Range 3
17 mile/h
Specification
Value
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.
Specification
Value
Full Turn Tip Load (2)
10 662 kg (23,504 lb)^
Full Turn Tip Load (1)
10 551 kg (23,260 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.
Specification
Value
Recyclability
94%
INCREASED PAYLOAD
Additional counterweight improves stability without reducing ground clearance or departure angle to maximize performance.
LONG LIFE SAND AND GRAVEL BUCKETS
Performance Series Buckets deliver higher fill factors and better material retention for significant productivity and fuel efficiency improvements. The buckets feature a long floor, open throat, curved side bars and additional serviceable wear plates including corner guards.
PROTECT YOUR POWER TRAIN
Increase your fording depths with optional elevated breathers. Remote mounted high on the machine for the front and rear axles and hydrostatic gear box. Allows settling pond clean out without contamination.
Additional counterweight improves stability without reducing ground clearance or departure angle to maximize performance.
LONG LIFE SAND AND GRAVEL BUCKETS
Performance Series Buckets deliver higher fill factors and better material retention for significant productivity and fuel efficiency improvements. The buckets feature a long floor, open throat, curved side bars and additional serviceable wear plates including corner guards.
PROTECT YOUR POWER TRAIN
Increase your fording depths with optional elevated breathers. Remote mounted high on the machine for the front and rear axles and hydrostatic gear box. Allows settling pond clean out without contamination.
The Cat® C7.1 engine provides cleaner, quieter operation while delivering superior performance and durability through a high torque, low speed design. Caterpillar's exclusive Intelligent Power Management system monitors operator input and power availability to keep the machine working at peak efficiency and provide the operator with greater customization to suit their application.
A choice of Power Modes allows you to choose between maximum fuel efficiency or boosted power along with hydraulic speed.
STANDARD POWER MODE
Lock up and go with fully locking front differential axle that can be engaged on the move at full torque. Maximize your traction with optional Limited Slip Differential on the rear axle to keep you climbing.
A choice of Power Modes allows you to choose between maximum fuel efficiency or boosted power along with hydraulic speed.
STANDARD POWER MODE
- Saves fuel and reduces cab sound levels
- Biggest gains are seen during load and carry, snow removal and roading applications
PERFORMANCE POWER MODE - Enabled at the push of a button (HP+), boosts engine power by up to 10% and engine speed by over 12%
- Increases hydraulic cycle times and productivity
Lock up and go with fully locking front differential axle that can be engaged on the move at full torque. Maximize your traction with optional Limited Slip Differential on the rear axle to keep you climbing.
A spacious, quiet and comfortable operator environment helps keep you relaxed and productive throughout the day. Experience superior all around visibility with single piece front windshield, redesigned linkage and clean hydraulic lines routing. Seat-mounted controls featuring low effort joystick for lift and tilt functions along with integrated Forward/Neutral/Reverse switch, differential lock trigger and optional third and fourth auxiliary functions.
- Automatic climate control with heated rear glass and external mirrors
- Information at a glance with large primary LCD display
- Heated and cooled seat option
- Optional Ride Control
- Exclusive electro-hydraulic cylinder snubbing
- An extra eye on the job site with optional integrated rear object detection and optional* rearview camera
The M Series Aggregate Handler will remember you and your personal settings with unique operator codes to make this machine truly yours and keep it secure.
Work as one with your machine by customizing your controls.
Work as one with your machine by customizing your controls.
- Select your Power Train Mode
- Reduce tire wear using Rimpull
- Fine tune ground speed with Creeper Control
- Adjustable Electo-Hydraulic Controls
- Set Directional Shift Response based on job application
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 optional 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 fans per inch coolers as standard.
- Integrated Autolube (optional) with adjustable greasing frequency.
With renowned Cat dealer support, rely on your Cat dealer to help you every step of the way with new or used machine sales, rental or rebuild options to meet your business needs.
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.
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.
- The Cat® C7.1 engine meets U.S. EPA Tier 4 Final, EU Stage V and Korea Tier 5 emission standards.
- Engine Idle Management System (EIMS) helps maximize fuel efficiency and reduce greenhouse gas emissions while maintaining machine performance.
- Engine Idle Shutdown Timer reduces fuel burn, greenhouse gas emissions and unnecessary idle time by shutting down the machine after a pre-set idling period.
- Performance Series Buckets have rounded side boards, a longer floor and open angle to carry more and load quicker so each pass is the most efficient.
- Rimpull Control is a quick way to adjust the torque to the tires for less slipping and tire wear.
- Cat® Production Measurement provides real-time payload weighing which help you maximize productivity, reduce fuel burn and greenhouse gas emissions, all while improving job site efficiency and lowering costs.
- Extended maintenance intervals not only reduce downtime but decrease the amount of fluid and filters that are replaced over the life of the machine.
- Power on Demand, transparent to the operator, provides full-time efficiency and power when you need it.
- Tire Pressure Monitoring provides real-time tire pressure information to the operator to help increase tire wear and achieve better fuel efficiency and reduced greenhouse gas emissions.
- Intelligent Hystat Transmission helps improves control and reduces fuel consumption and greenhouse gas emissions in load and carry applications.
- Variable Displacement Pumps match power to load as application requirements change.
