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938M Aggregate Handler Small Wheel Loader

Overview

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 the new industry benchmark.

938M Aggregate Handler Small Wheel Loader - Specifications

Engine
Maximum Gross Power
188 HP
140 kW
Bore
4 in
105 mm
Stroke
5 in
135 mm
Displacement
427 in³
7.01 l
Engine Model
Cat® C7.1 ACERT™
Maximum Rated Gross Power - ISO 14396 (DIN) (Standard Power Mode: Range 1-3*)
175 HP
129 kW
Maximum Net Torque - SAE J1349 (Standard Power Mode: Range 1-3*)
621 ft·lbf
843 N·m
Maximum Net Torque - SAE J1349 (Performance Power Mode: Range 1-4)
621 ft·lbf
843 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 - ISO 9249 (1977)/EEC 80/1269 (Performance Power Mode: Range 1-4)
628 ft·lbf
852 N·m
Maximum Gross Torque - ISO 14396 (Standard Power Mode: Range 1-3*)
648 ft·lbf
879 N·m
Maximum Gross Torque - ISO 14396 (Performance Power Mode: Range 1-4)
648 ft·lbf
879 N·m
Emissions
Engine meets U.S. EPA Tier 4 Final/EU Stage IV emission standards.
Maximum Rated Gross Power - Maximum Engine Speed (Standard Power Mode: Range 1-3*)
1600 r/min
1600 r/min
Rated Net Power - 1,800 rpm - SAE J1349 at Minimum Fan Speed (Performance Power Mode: Range 1-4)
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
182 HP
136 kW
Maximum Rated Gross Power - Maximum Engine Speed (Performance Power Mode: Range 1-4)
1800 r/min
1800 r/min
Maximum Rated Gross Power - ISO 14396 (Performance Power Mode: Range 1-4)
188 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 (DIN)
190 HP
140 kW
Maximum Rated Gross Power - ISO 14396 (Standard Power Mode: Range 1-3*)
173 HP
129 kW
Note (1)
* Range 4 power and torque is equal to Performance Mode with Caterpillar Power by Range technology.
Maximum Rated Gross Power - ISO 14396
188 HP
140 kW
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.
Rated Net Power - 1,800 rpm - ISO 9249 (DIN) at Minimum Fan Speed (Performance Power Mode: Range 1-4)
186 HP
137 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 - 1,600 rpm - ISO 9249 (DIN) at Minimum Fan Speed (Standard Power Mode: Range 1-3*)
171 HP
126 kW
Rated Net Power - 1,600 rpm - ISO 9249 (1977)/EEC 80/1269 at Minimum Fan Speed (Standard Power Mode: Range 1-3*)
169 HP
126 kW
Note (4)
Spark arrester performance as standard – Meets the performance requirements of EN 1834-1.2000 (section 6.4.2 Visual Test).
Note (3)
No derating required up to 3000 m (10,000 ft) altitude. Auto derate protects hydraulic and transmission systems.
Weights
Operating Weight
36075 lb
16368 kg
Buckets
Bucket Capacities
2.9-3.2 m3 (3.8-4.2 yd3)
Cab
ROPS
ISO 3471: 2008, FOPS: ISO 3449: 2005 LEVEL II
Note (2)
The Blue Angel environmental label is an optional attachment for Europe only.
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.
Declared Sound Levels
– Operator Sound Pressure Level (ISO 6396:2008): 68 dB(A)* – Exterior Sound Power Level (ISO 6395:2008): 101 dB(A)*
Power Train
Note (1)
Power train is governed by the Caterpillar exclusive Intelligent Power Management system to deliver peak performance and efficiency.
Rear Axle - Traction Aid - Optional
Limited slip differential
Rear Axle - Oscillation Angle by Tire Size - 23.5 R25
± 7 degrees
Rear Axle - Oscillation Angle by Tire Size - 20.5 R25, 550/65, 600/65, 650/65
± 10.5 degrees
Rear Axle
Oscillating
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.
Note (2)
Offset rims available to meet European roading requirements.
Front Axle - Traction Aid**
Locking differential (standard)
Front Axle
Fixed
Brakes - Service
Outboard wet disc
Brakes - Parking
Spring applied hydraulically released
Service Refill Capacities
Diesel Exhaust Fluid (DEF) Tank
5 gal (US)
19 l
Cooling System
8.5 gal (US)
32 l
Front Axles
9.2 gal (US)
35 l
Engine Crankcase
5.3 gal (US)
20 l
Transmission - Gear Box
2.9 gal (US)
11 l
Fuel Tank
51.5 gal (US)
195 l
Hydraulic System - Including Tank
44.9 gal (US)
170 l
Rear Axles
9.2 gal (US)
35 l
Hydraulic Tank
23.8 gal (US)
90 l
Operating Specifications
Full Turn Tip Load
23466 lb
10647 kg
Loader Hydraulic System
Tilt Cylinder, Double Acting - Stroke
21.9 in
555 mm
Tilt Cylinder, Double Acting - Rod Diameter
3.5 in
90 mm
Tilt Cylinder, Double Acting - Bore Diameter
5.9 in
150 mm
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
Maximum Working Pressure - Implement Pump
4061 psi
28000 kPa
Relief Pressure - Tilt Cylinder
4351 psi
30000 kPa
Note (3)
* 3rd function flow is fully adjustable from 20% to 100% of maximum flow through the secondary display when equipped.
Cycle Times - Performance (HP+) at 1,800 rpm/Standard Power Mode at 1,600 rpm - Total Cycle Time
9.7/10.6 seconds
Note (2)
Flow values listed are for a machine running in Performance Power Mode (1,800 rpm)
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.
Maximum Flow - Implement Pump - 3rd Function*
50 gal/min
190 l/min
Maximum Flow - Implement Pump
50 gal/min
190 l/min
Lift Cylinder, Double Acting - Stroke
31.1 in
789 mm
Lift Cylinder, Double Acting - Rod Diameter
2.6 in
65 mm
Lift Cylinder, Double Acting - Bore Diameter
4.7 in
120 mm
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 - 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 - Dump (at Maximum Lift Height)
1.5/1.7 seconds
Steering
Steering Cycle Times - Full Left to Full Right - Maximum RPM: 90 rpm Steering Wheel Speed
2.3 s
2.3 s
Steering Cylinder, Double Acting - Stroke
15.7 in
399 mm
Steering Cylinder, Double Acting - Rod Diameter
2 in
50 mm
Steering Cylinder, Double Acting - Bore Diameter
3.1 in
80 mm
Steering Cycle Times - Full Left to Full Right - Minimum RPM: Pump Flow Limited
3.1 s
3.1 s
Note (2)
Flow values listed are for a machine running in Performance Power Mode (1,800 rpm).
Note (1)
Steering system uses a dedicated load sensing variable displacement pump with dual double acting cylinders.
Maximum Working Pressure - Steering Pump
3500 psi
24130 kPa
Maximum Steering Torque - 40° (Full Turn)
31398 ft·lbf
42570 N·m
Maximum Steering Torque - 0° (Straight Machine)
42506 ft·lbf
57630 N·m
Maximum Flow - Steering Pump
34 gal/min
130 l/min
Transmission
Forward and Reverse - Range 4
25 mile/h
40 km/h
Forward and Reverse - Range 3
17 mile/h
27 km/h
Forward and Reverse - Range 2
8 mile/h
13 km/h
Forward and Reverse - Range 1*
1-13 km/h (0.6-8 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).