Overview
The Cat® FM528 handles clearing, mulching, and timber with stability and comfort. VisionLink™ and Cat forestry tools boost uptime, backed by dealer service and parts support.
Key Features
More Comfort. More Performance. More Versatility.
Built for Operators
Certified forestry cab with wide visibility and fatigue-reducing comfort helps you stay sharp in tough woods work.
Multiple Configurations
From log loading to mulching, Cat attachments adapt the FM528 to multiple forestry applications with ease
Low Owning and Operating Costs
Efficient hydraulics, long-life filters, and dealer support keep downtime low and profits high.
Specifications
| Engine Model | Cat C4.4 |
|---|---|
| Net Power - ISO 9249 | 170 hp |
| Engine Power - ISO 14396 | 173 hp |
| Net Power - ISO 9249 (DIN) | 173 hp (metric) |
| Engine Power - ISO 14396 (DIN) | 175 hp (metric) |
| Bore | 4 in |
| Stroke | 5 in |
| Displacement | 269 in³ |
| Biodiesel Capability | B20¹ |
| Emissions | Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 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 2,200 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 | 3.5 mile/h |
|---|---|
| Maximum Drawbar Pull | 45187 lbf |
| Main System - Maximum Flow | 113 gpm |
|---|---|
| Maximum Pressure - Equipment | 5076 psi |
| Maximum Pressure - Equipment - Lift Mode | 5511 psi |
| Maximum Pressure - Travel | 5076 psi |
| Maximum Pressure - Swing | 3989 psi |
| Swing Speed | 11 r/min |
|---|---|
| Maximum Swing Torque | 60480 lbf·ft |
| General Forestry | 59700 lb |
|---|---|
| Note (1) | High long undercarriage (High LC), 165 mm (6.5") fixed riser side entry cab (SEC) 5.7 m (18'7") reach boom, R3.7 m (12’2”) drop nose stick, 700 mm (28”) double grouser (DG) shoes, no processor head |
| Log Loader (U/U) | 63300 lb |
| Note (2) | High LC, 1219 mm (48") tilting riser SEC, 5.9 m (19’6”) straight boom, 3.5m (11'6") u/u stick with live heel, 700mm (28") double grouser (DG) shoes, no grapple |
| Forestry Road Builder | 62170 lb |
| Note (3) | High LC, 165 mm (6.5”) fixed riser SEC, 5.7 m (18'7") reach boom, R2.9 (9'7") thumb ready stick, 700mm (28") double grouser shoes, 1.2 m³ (1.6 yd³) HD bucket. |
| Log Loader (MH Stick) | 63050 lb |
| Note (4) | High LC, 1219 mm (48") tilting riser SEC, 5.9 m (19’6”) Straight boom, 5.8 m (19') drop nose log loader stick, 700mm (28") double grouser shoes, no grapple |
| Fuel Tank | 91.1 gal (US) |
|---|---|
| Cooling System | 6.6 gal (US) |
| Engine Oil | 4 gal (US) |
| Swing Drive | 1.3 gal (US) |
| Final Drive - Each | 1.3 gal (US) |
| Hydraulic System - Including Tank | 65.6 gal (US) |
| Hydraulic Tank | 34.1 gal (US) |
| DEF Tank | 6.9 gal (US) |
| Note (1) | General Forestry configuration with High LC, SEC with 165 mm (6.5") fixed riser, 5.7 m (18'7") Reach boom, 2.8 m (9'7") Thumb ready stick, 700 mm (28") double grouser (DG) shoes |
|---|---|
| Shipping Height - Tilted Cab | 11.3 ft |
| Handrail Height | 9.8 ft |
| Length: General Forestry - Boom Stretched Out | 38.3 ft |
| Length: Log Loader - Boom Stretched Out | 44.1 ft |
| Tail Swing Radius | 9.3 ft |
| Counterweight Clearance | 3.4 ft |
| Ground Clearance for Standard Undercarriage | 1.4 ft |
| Ground Clearance for High Undercarriage | 2 ft |
| Track Length | 14.7 ft |
| Track Length to Center of Rollers | 11.9 ft |
| Track Gauge | 7.8 ft |
| Transport Width | 11 ft |
| Max Reach at Stick Nose at Ground Level - General Forestry Road Builder | 32.3 ft |
|---|---|
| Max Reach at Grapple Mount on Heel at Ground Level - Log Loader Under/Under | 36 ft |
| Max Reach at Stick Nose at Ground Level - General Forestry Processor | 29.1 ft |
| Max Reach at Stick Nose at Ground Level – Log Loader MH Stick | 38.1 ft |
| Note (1) | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 2.1 (22" Riser CAB)/2.2 (48"/72" Riser CAB) kg of refrigerant, which as a CO2 equivalent of 3.003/3.146 metric tonnes. |
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