The Cat 938M Small Wheel Loader sets the standard for productivity, fuel efficiency and operator comfort. The improved optimized Z-bar loader linkage delivers the quick loading performance of a traditional Z-bar with the parallelism and load handling capability of a tool carrier. A high torque, low speed C7.1 ACERT engine works in concert with an intelligent hystat power train to deliver fuel efficiency as standard. Meets Tier 4 Final/Stage V emission standards with an environmentally friendly, Clean Emission Module designed to manage itself so you can concentrate on your work. Experience the new industry benchmark.

Informações Tećnicas

• Rated Net Power: 136 kW
• Operating Weight: 16229 kg
• Bucket Capacities: 2.5-5.0 m³ (3.2-6.5 yd³)

Mais informações

Engine

• Engine Model: Cat C7.1 ACERT**
• Maximum Rated Gross Power - ISO 14396: 140 kW / 188 HP
• Maximum Rated Gross Power - ISO 14396 (DIN): 140 kW / 190 HP
• Maximum Rated Gross Power - ISO 14396 (DIN) (Performance Power Mode: Range 1-4): 142 kW / 190 HP
• Maximum Rated Gross Power - ISO 14396 (Performance Power Mode: Range 1-4): 140 kW / 188 HP
• Maximum Rated Gross Power - Maximum Engine Speed (Performance Power Mode: Range 1-4): 1800 r/min / 1800 r/min
• Rated Net Power: 136 kW / 182 HP
• Rated Net Power - 1,800 rpm - ISO 9249 (1977)/EEC 80/1269 at Minimum Fan Speed (Performance Power Mode: Range 1-4): 137 kW / 184 HP
• Rated Net Power - 1,800 rpm - SAE J1349 at Minimum Fan Speed (Performance Power Mode: Range 1-4): 137 kW / 183 HP
• Maximum Gross Power: 142 kW / 190 HP
• Bore: 105 mm / 4 in
• Stroke: 135 mm / 5 in
• Displacement: 7.01 l / 427 in³
• 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): 900 N·m / 664 ft·lbf
• Maximum Gross Torque - ISO 14396 (Standard Power Mode: Range 1-3*): 870 N·m / 642 ft·lbf
• Maximum Net Torque - ISO 9249 (1977)/EEC 80/1269 (Performance Power Mode: Range 1-4): 852 N·m / 628 lb/ft
• Maximum Net Torque - ISO 9249 (1977)/EEC 80/1269 (Standard Power Mode: Range 1-3*): 852 N·m / 628 lb/ft
• Maximum Net Torque - SAE J1349 (Performance Power Mode: Range 1-4): 880 N·m / 649 ft·lbf
• Maximum Net Torque - SAE J1349 (Standard Power Mode: Range 1-3*): 850 N·m / 627 ft·lbf
• Maximum Rated Gross Power - ISO 14396 (DIN) (Standard Power Mode: Range 1-3*): 131 kW / 176 HP
• Maximum Rated Gross Power - ISO 14396 (Standard Power Mode: Range 1-3*): 129 kW / 173 HP
• Maximum Rated Gross Power - Maximum Engine Speed (Standard Power Mode: Range 1-3*): 1600 r/min / 1600 r/min
• Note (1): 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 (2): *Range 4 power and torque is equal to Performance Mode with Caterpillar Power by Range technology.
• Note (3): **The Cat C7.1 ACERT engine meets Tier 4 Final/Stage V off-highway emission standards.
• Note (4): Spark arrestor performance as standard – Meets 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*): 126 kW / 169 HP
• Rated Net Power - 1,600 rpm - ISO 9249 (DIN) at Minimum Fan Speed (Standard Power Mode: Range 1-3*): 128 kW / 172 HP
• Rated Net Power - 1,600 rpm - SAE J1349 at Minimum Fan Speed (Standard Power Mode: Range 1-3*): 127 kW / 170 HP
• Rated Net Power - 1,800 rpm - ISO 9249 (DIN) at Minimum Fan Speed (Performance Power Mode: Range 1-4): 139 kW / 186 HP
• Displacement (Standard Power Mode: Speed Range 1-3*): 7.01 l / 427 in³
• Displacement (Performance Power Mode: Speed Range 1-4): 7.01 l / 427 in³
• Rated Net Power - 1,600 rpm - ISO 9249 at Minimum Fan Speed (Standard Power Mode: Range 1-3*): 127 kW / 170 HP
• Maximum Net Torque - ISO 9249:2007 (Standard Power Mode: Range 1-3*): 852 N·m / 628 ft·lbf
• Rated Net Power - 1,800 rpm - ISO 9249 at Minimum Fan Speed (Performance Power Mode: Range 1-4): 137 kW / 184 HP
• Maximum Net Torque - ISO 9249:2007 (Performance Power Mode: Range 1-4): 882 N·m / 650 ft·lbf

Buckets

• Bucket Capacities: 2.5-5.0 m³ (3.2-6.5 yd³)
• Bucket Capacities - Light Material: 3.1-5.0 m³ (4.0-6.5 yd³)
• Bucket Capacities - General Purpose: 2.5-3.2 m³ (3.2-4.2 yd³)

Weights

• Operating Weight: 16229 kg / 35778 lb

Cab

• ROPS: ISO 3471:2008
• FOPS: ISO 3449:2008 Level II
• Note (1): Cab and Rollover Protective Structures (ROPS) are standard in North America and Europe.
• Note (2): The declared dynamic operator sound pressure levels per ISO 6396:2008*, when properly installed and maintained, are:– Standard cab: 68 ±3 dB(A)– Deluxe cab: 66 ±2 dB(A)
• Note (3): *The measurements were conducted with the cab doors and windows closed and at 70% of the maximum engine cooling fan speed. The sound level may vary at different engine cooling fan speeds.

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.

Loader Hydraulic System

• 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: 120 mm / 4.7 in
• Lift Cylinder, Double Acting - Rod Diameter: 65 mm / 2.6 in
• Lift Cylinder, Double Acting - Stroke: 789 mm / 31.1 in
• Maximum Flow - Implement Pump: 190 l/min / 50 gal/min
• Maximum Flow - Implement Pump - 3rd Function*: 190 l/min / 50 gal/min
• Maximum Flow - Implement Pump - 4th Function Maximum Flow*: 160 l/min / 42 gal/min
• Maximum Working Pressure - Implement Pump: 28000 kPa / 4061 psi
• Note (1): *3rd and 4th function flow is fully adjustable from 20% to 100% of maximum flow through the secondary display, when equipped.
• Note (2): Implement system uses a dedicated load sensing variable displacement pump with dual double acting lift cylinders and a single double acting tilt cylinder.
• Note (3): Flow values listed are for a machine running in Performance Power Mode (1,800 rpm).
• Relief Pressure - Tilt Cylinder: 30000 kPa / 4351 psi
• Relief Pressure - Tilt Cylinder - 3rd and 4th Function Maximum Working Pressure: 28000 kPa / 4061 psi
• Relief Pressure - Tilt Cylinder - 3rd and 4th Function Relief Pressure: 30000 kPa / 4351 psi
• Tilt Cylinder, Double Acting - Bore Diameter: 150 mm / 5.9 in
• Tilt Cylinder, Double Acting - Rod Diameter: 90 mm / 3.5 in
• Tilt Cylinder, Double Acting - Stroke: 555 mm / 21.9 in
• Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Raise, Ground Level to Maximum Lift: 5.5 s / 5.5 s
• Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Total Cycle Time: 9.7 s / 9.7 s
• Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Total Cycle Time: 10.6 s / 10.6 s
• Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Dump, at Maximum Lift Height: 1.7 s / 1.7 s
• Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Dump, at Maximum Lift Height: 1.5 s / 1.5 s
• Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Raise, Ground Level to Maximum Lift: 6.2 s / 6.2 s
• Hydraulic Cycle Time - Performance Mode at 1,800 rpm - Float Down, Maximum Lift to Ground Level: 2.7 s / 2.7 s
• Hydraulic Cycle Time - Standard Mode at 1,600 rpm - Float Down, Maximum Lift to Ground Level: 2.7 s / 2.7 s
• Maximum Flow - Implement Pump - 3rd Function Maximum Flow*: 190 l/min / 50 gal/min

Operating Specifications

• Full Turn Tip Load: 10028 kg / 22107 lb

Power Train

• Brakes - Parking: Spring applied hydraulically released
• Brakes - Service: Outboard wet disc
• Front Axle: Fixed
• Front Axle - Traction Aid - Standard: Locking differential
• Note (1): Power train is governed by the Caterpillar exclusive Intelligent Power Management system to deliver peak performance and efficiency.
• Note (2): Differential front locking axle can be engaged on the go at full torque up to 20 km/h (12.4 mph) on the 938M.
• Note (3): Offset rims available to meet European roading requirements.
• 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 - Oscillation Angle by Tire Size - Solid Tires, 750/65, 620/65, Skidder: ± 7 degrees
• Rear Axle - Traction Aid - Optional: Limited slip differential

Service Refill Capacities

• Cooling System: 32 l / 7.9 gal (US)
• Diesel Exhaust Fluid (DEF) Tank: 19 l / 5 gal (US)
• Engine Crankcase: 20 l / 5.3 gal (US)
• Front Axles: 35 l / 9.2 gal (US)
• Fuel Tank: 195 l / 51.5 gal (US)
• Hydraulic System - Including Tank: 170 l / 44.9 gal (US)
• Hydraulic Tank: 90 l / 23.8 gal (US)
• Rear Axles: 35 l / 9.2 gal (US)
• Transmission - Gear Box: 11 l / 2.9 gal (US)
• Note: DEF used in Cat SCR systems must meet the requirements outlined in the International Organization for Standardization (ISO) standard 22241-1.

Steering

• Maximum Flow - Steering Pump: 130 l/min / 34 gal/min
• Maximum Steering Torque - 0° (Straight Machine): 57630 N·m / 42506 ft·lbf
• Maximum Steering Torque - 40° (Full Turn): 42570 N·m / 31398 ft·lbf
• Maximum Working Pressure - Steering Pump: 24130 kPa / 3500 psi
• 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: 80 mm / 3.1 in
• Steering Cylinder, Double Acting - Rod Diameter: 50 mm / 2 in
• Steering Cylinder, Double Acting - Stroke: 399 mm / 15.7 in
• Steering Articulation Angle - Each Direction: 40°
• Number of Steering Wheel Turns - Full Left to Full Right or Full Right to Full Left: 3.3 turns / 3.3 turns
• Steering Cycle Times - Full Left to Full Right - At 1,800 rpm: 90 rpm Steering Wheel Speed: 2.3 s / 2.3 s

Transmission

• Forward and Reverse - Range 1*: 1-13 km/h (0.6-8 mph)
• Forward and Reverse - Range 2: 13 km/h / 8 mile/h
• Forward and Reverse - Range 3: 27 km/h / 17 mile/h
• Forward and Reverse - Range 4: 40 km/h / 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).

Sound

• Note (1): European Union Directive “2000/14/EC”
• Average Exterior Sound Pressure (ISO 6395:2008): 101 dB(A) / 101 dB(A)
• Operator Sound Pressure (ISO 6396:2008): 72 dB(A) / 72 dB(A)

Tires

• Note (1): Other tire choices are available. Contact your Cat dealer for details.
• Standard Size: 20.5 R25, radial (L-3)
• Note (2): In certain applications, the loader’s productive capabilities may exceed the tire’s tonnes-km/h (ton-mph) capabilities.
• Other Choices Include: 20.5 R25, radial (L-2); 20.5 R25, radial (L-5); 20.5-25 12PR (L-2); 20.5-25 12PR (L-3); 20.5-25 16PR (L-5); 23.5 R25, radial (L-3); 650/65 R25 radial (L-3); Skidder/Agriculture; Solid Tires
• Note (3): Caterpillar recommends that you consult a tire supplier to evaluate all conditions before selecting a tire model.

Axles

• Rear: Oscillating ±11 degrees; Open differential (standard); Limited slip differential (optional)
• Front: Fixed; Locking differential (standard)