Overview
Performance and availability describe the Cat® 558 Forest Machine. Purpose built, it features extreme-duty component frames that can handle the machine’s powerful engine and hydraulics systems ensuring productivity, durability and lower operating costs. Options are available to fit the 538 to your specific forestry tasks.
Engine
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| Engine Model |
Cat C7.1 |
| Net Flywheel Power |
239HP |
| Gross Power |
239HP |
| Displacement |
428in³ |
| Engine Speed - Operation |
1750r/min |
| Engine Speed - Travel |
1800r/min |
| Gross Power at 2,200 rpm |
239HP |
| Number of Cylinders |
6 |
Service Refill Capacities
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| Cooling System |
7.9gal (US) |
| Swing Drive |
2.9gal (US) |
| Hydraulic Tank |
46.2gal (US) |
| Fuel Tank - CWT |
261.4gal (US) |
| Hydraulic System - Total |
81.9gal (US) |
| DEF Tank |
12.2gal (US) |
| Engine Crankcase |
6.3gal (US) |
| Final Drive - Each |
2.9gal (US) |
Operating Specifications
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| Maximum Speed - Turtle |
1.5mile/h |
| Maximum Speed - Rabbit |
2.3mile/h |
| Maximum Drawbar Pull |
72164lbf |
| Maximum Swing Speed (GF) |
7.5r/min |
| Swing Torque (GF) |
74494ft·lbf |
Hydraulic System
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| Main Pumps - Maximum Flow - Per Pump |
63.4gal/min |
| Main Pumps - Maximum Flow - Both Pumps |
126.8gal/min |
| Maximum System Pressure - Implements |
5076psi |
| Maximum System Pressure - Travel |
5076psi |
| Maximum System Pressure - Swing |
4641psi |
| Maximum System Pressure - Heavy Lift Mode |
5511psi |
| Auxiliary Pump - Reach with Rotate: Maximum Flow |
37.2gal/min |
| Auxiliary Pump - Reach with Rotate: Maximum Pressure |
1499psi |
| Auxiliary Pump - Reach with Rotate: Pump Drive Gear Ratio |
1.28:1 |
Undercarriage
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| Undercarriage Pitch |
8.5in |
| Ground Clearance |
29.5in |
| Track Gauge |
115in |
| Track Length |
199.7in |
Weights
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| Estimated Operating Weight without Attachment: General Forestry (Reach) |
85239lb |
Dimensions - General Forestry - Boom Stretched Out
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| Boom Height |
146.5in |
| Distance Between Idler and Sprocket Centerline |
158.2in |
| Ground Clearance |
29.5in |
| Height of Tilted Side Entry Cab |
137.7in |
| Overall Height |
164.5in |
| Overall Length (Reach) |
499.2in |
| Tail Swing Radius |
143.8in |
| Track Gauge |
115in |
| Track Length |
199.7in |
| Width - With 700 mm (28 in) Shoes |
142.6in |
