Overview
The Cat® FM538 forestry machine is built for log loading , Processing, and forestry roadbuilding. Operators get smooth control and visibility, while Cat forestry grapples and mulchers maximize efficiency.
Key Features
More Comfort. More Performance. More Versatility.
Designed for Comfort and Ease
Forestry ROPS cab with clear sightlines, low noise, and ergonomic controls makes logging safer and easier.
Boosts Production
High swing torque, heavy-lift mode, and fast travel move timber faster. Cat forestry tools expand capability.
Saves Time and Money
Extended-life filters and simplified hydraulics mean less maintenance and more uptime.
Specifications
| Engine Model | Cat C7.1 |
|---|---|
| Net Power - ISO 9249 | 172 hp |
| Engine Power - ISO 14396 | 174 hp |
| Net Power - ISO 9249 (DIN) | 175 hp (metric) |
| Engine Power - ISO 14396 (DIN) | 176 hp (metric) |
| Bore | 4 in |
| Stroke | 5 in |
| Displacement | 428 in³ |
| Biodiesel Capability | B20¹ |
| Emissions | Meets U.S. EPA Tier 4 Final, EU Stage V emission standards. |
| Note (1) | Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system, and alternator with engine speed at 1,800 rpm. Advertised power is tested per the specified standard in effect at time of manufacture. |
| Note (2) | ¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) and are compatible* with ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)*** 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. *While Caterpillar engines are compatible with these alternative fuels, some regions may not allow their use. ** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. *** Engines with no aftertreatment devices are compatible with higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer). |
| Maximum Travel Speed | 3 mile/h |
|---|---|
| Maximum Drawbar Pull | 57551 lbf |
| Main System - Maximum Flow | 124 gpm |
|---|---|
| Maximum Pressure - Equipment | 5076 psi |
| Maximum Pressure - Equipment - Lift Mode | 5511 psi |
| Maximum Pressure - Travel | 5076 psi |
| Maximum Pressure - Swing | 4351 psi |
| Swing Speed | 11 r/min |
|---|---|
| Maximum Swing Torque | 72281 lbf·ft |
| General Forestry | 66140 lb |
|---|---|
| Note (1) | High Wide undercarriage, 165 mm (6.5") riser, Reach boom, R3.7 m (12'2") Drop Nose stick, 700 mm (28") double grouser shoes, no processor head. |
| Log Loader (U/U) | 69640 lb |
| Note (2) | High Wide undercarriage, 1219 mm (48") riser, Log Loader boom, 3.5 m (11'6") Under/Under stick with live heel, 700 mm (28") double grouser shoes, no grapple. |
| Fuel Tank | 262 gal (US) |
|---|---|
| Cooling System | 5 gal (US) |
| Engine Oil | 7 gal (US) |
| Swing Drive | 3 gal (US) |
| Final Drive - Each | 1 gal (US) |
| Hydraulic System - Including Tank | 69 gal (US) |
| Hydraulic Tank | 38 gal (US) |
| DEF Tank | 11 gal (US) |
| Note (1) | General Forestry with 5.7 m (18'7") Reach boom and 2.9 m (9'7") Thumb ready stick |
|---|---|
| Shipping Height - Tilted Cab | 11.2 ft |
| Handrail Height | 10.8 ft |
| Length: General Forestry - Boom Stretched Out | 42.2 ft |
| Length: Log Loader - Boom Stretched Out | 44.9 ft |
| Tail Swing Radius | 10.3 ft |
| Counterweight Clearance | 4.2 ft |
| Ground Clearance | 2.5 ft |
| Track Length | 15.3 ft |
| Track Length to Center of Rollers | 158 ft |
| Track Gauge | 9.2 ft |
| Transport Width | 11.4 ft |
| Max Reach at Stick Nose at Ground Level - General Forestry Road Builder | 28.8 ft |
|---|---|
| Max Reach at Grapple Mount on Heel at Ground Level - Log Loader Under/Under | 35.9 ft |
| Note (1) | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.8 (FIX CAB)/2.0 (48" Riser CAB) kg of refrigerant, which as a CO2 equivalent of 2.574/2.860 metric tonnes. |
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