938M Aggregate Handler Small Wheel Loader
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 | 140 kW |
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| Engine Model | Cat® C7.1 |
| Bore | 105 mm |
| Stroke | 135 mm |
| Displacement | 7.01 l |
| Emissions | The Cat C7.1 engine meets U.S. EPA Tier 4 Final, EU Stage V and Korea Tier 4 Final emission standards. |
| Maximum Gross Power - ISO 14396 (metric) (Performance Power Mode: Range 1-4) | 140 kW |
| Maximum Gross Power - ISO 14396 (metric) (Standard Power Mode: Range 1-3*) | 129 kW |
| Maximum Gross Power - ISO 14396 (Performance Power Mode: Range 1-4) | 140 kW |
| Maximum Gross Power - ISO 14396 (Standard Power Mode: Range 1-3*) | 129 kW |
| Maximum Gross Power - Maximum Engine Speed (Performance Power Mode: Range 1-4) | 1800 r/min |
| Maximum Gross Power - Maximum Engine Speed (Standard Power Mode: Range 1-3*) | 1600 r/min |
| Maximum Gross Torque - ISO 14396 (Performance Power Mode: Range 1-4) | 900 N·m |
| Maximum Gross Torque - ISO 14396 (Standard Power Mode: Range 1-3*) | 870 N·m |
| Maximum Net Torque - ISO 9249 (Performance Power Mode: Range 1-4) | 882 N·m |
| Maximum Net Torque - ISO 9249 (Standard Power Mode: Range 1-3*) | 852 N·m |
| Maximum Net Torque - SAE J1349 (Performance Power Mode: Range 1-4) | 880 N·m |
| Maximum Net Torque - SAE J1349 (Standard Power Mode: Range 1-3*) | 850 N·m |
| Maximum Rated Gross Power - ISO 14396 | 140 kW |
| Maximum Rated Gross Power - ISO 14396 (metric) | 140 kW |
| Net Power (Performance Power Mode: Range 1-4) | 1800 r/min |
| Net Power (Standard Power Mode: Range 1-3*) | 1600 r/min |
| Net Power - ISO 9249 (metric) at Minimum Fan Speed (Performance Power Mode: Range 1-4) | 137 kW |
| Net Power - ISO 9249 (metric) at Minimum Fan Speed (Standard Power Mode: Range 1-3*) | 127 kW |
| Net Power - ISO 9249 at Minimum Fan Speed (Performance Power Mode: Range 1-4) | 137 kW |
| Net Power - ISO 9249 at Minimum Fan Speed (Standard Power Mode: Range 1-3*) | 127 kW |
| Net Power - SAE J1349 at Minimum Fan Speed (Performance Power Mode: Range 1-4) | 137 kW |
| Net Power - SAE J1349 at Minimum Fan Speed (Standard Power Mode: Range 1-3*) | 127 kW |
| 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. |
| Operating Weight | 16710 kg |
|---|---|
| Note (1) | **Aggregate Handler machine equipped with full counterweight and optional guards. |
| Note (2) | ^Aggregate Handler equipped with full counterweight, optional guards, roading fenders, cold start package, and 23.5R25 tires. |
| Operating Weight (1) | 16 199 kg (35,712 lb)** |
| Operating Weight (2) | 16 710 kg (36,839 lb)^ |
| Bucket Capacities | 2.9-5.0 m3 (3.8-6.5 yd3) |
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| Note (1) | **Aggregate Handler machine equipped with full counterweight and optional guards. |
|---|---|
| Note (2) | ^Aggregate Handler equipped with full counterweight, optional guards, roading fenders, cold start package, and 23.5R25 tires. |
| Full Turn Tip Load (1) | 10 551 kg (23,260 lb)** |
| Full Turn Tip Load (2) | 10 662 kg (23,504 lb)^ |
| Fuel Tank | 195 l |
|---|---|
| Cooling System | 32 l |
| Diesel Exhaust Fluid (DEF) Tank | 19 l |
| Engine Crankcase | 20 l |
| Front Axles | 35 l |
| Hydraulic System - Including Tank | 170 l |
| Hydraulic Tank | 90 l |
| Rear Axles | 35 l |
| Transmission - Gear Box | 11 l |
| ROPS | ISO 3471:2008 |
|---|---|
| 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)* |
| 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. |
| 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. |
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| 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 |
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| 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 | 120 mm |
| Lift Cylinder, Double Acting - Rod Diameter | 65 mm |
| Lift Cylinder, Double Acting - Stroke | 789 mm |
| Maximum Flow - Implement Pump | 190 l/min |
| Maximum Flow - Implement Pump - 3rd Function Maximum Flow* | 190 l/min |
| Maximum Flow - Implement Pump - 4th Function Maximum Flow* | 160 l/min |
| Maximum Working Pressure - Implement Pump | 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 and 4th function flow is fully adjustable from 20% to 100% of maximum flow through the secondary display when equipped. |
| Relief Pressure - Tilt Cylinder | 30000 kPa |
| Relief Pressure - Tilt Cylinder - 3rd and 4th Function Maximum Working Pressure | 28000 kPa |
| Relief Pressure - Tilt Cylinder - 3rd and 4th Function Relief Pressure | 30000 kPa |
| Tilt Cylinder, Double Acting - Bore Diameter | 150 mm |
| Tilt Cylinder, Double Acting - Rod Diameter | 90 mm |
| Tilt Cylinder, Double Acting - Stroke | 555 mm |
| 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 |
| Maximum Flow - Steering Pump | 130 l/min |
|---|---|
| Maximum Working Pressure - Steering Pump | 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 |
| Steering Cycle Times - Full Left to Full Right - Minimum RPM: Pump Flow Limited | 3.1 s |
| Steering Cylinder, Double Acting - Bore Diameter | 80 mm |
| Steering Cylinder, Double Acting - Rod Diameter | 50 mm |
| Steering Cylinder, Double Acting - Stroke | 399 mm |
| Forward and Reverse - Range 1* | 1-13 km/h (0.6-8 mph) |
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| Forward and Reverse - Range 2 | 13 km/h |
| Forward and Reverse - Range 3 | 27 km/h |
| Forward and Reverse - Range 4 | 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). |
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