519 SM/EHC

Caterpillar has a full line of stationary mount loaders for a wide range of mill yard applications. Four models are available with onboard or remote power. Caterpillar stationary mount loaders are completely pre-wired, tested and ready for on-site electric hookup, including installation kits with the required fasteners for mounting to steel or concrete pedestals. And with the Resilient Pad Mounting system, your workday will be productive and comfortable.


SPECIFICATIONS
Dimensions
Maximum Reach 30 ft


Operating Specifications
Knuckleboom Length 27 ft
Grapple Mounting Knuckle Length 9 in
Swing Bearing - Diameter 43 in
Swing Bearing - Gearing External
Electric Motor 75 HP
Electric Power Supply 460 Volt: 60 Hz
Operating Weight 15315 lb


Engine
Gross Power 75 HP


Hydraulic System
Cylinders - Live Heel 127 mm X 76 mm (5 in X 3 in)
Cylinders - Main 152 mm X 102 mm (6 in X 4 in)
Cylinders - Stick 152 mm X 102 mm (6 in X 4 in)
Hydraulic Flow 167/125/83 L/min (44/33/22 gpm)
Hydraulic Pressure - Swing 2400 psi
Hydraulic Pressure - System 2200 psi
Swing Speed 8 r/min


Service Refill Capacities
Fuel Tank 42 gal (US)


Weights
Operating Weight 15315 lb


BENEFITS & FEATURES
Operator Station


On standard loaders with operator's station, the hydraulic pilot joystick controls and rocker swing pedal are ergonomically designed for ease of operation and maximum loader control required for the high cycle millyard applications. The operator station is designed with comfort in mind. The spacious cabs feature a large, fully adjustable suspension seat with lumbar support. Fold-up armrests are fully adjustable to allow adjustment of the joystick controls to match the operator for ease of operation, increased performance. Excellent visibility of the work area is provided through large tinted cab windows. Overhead visibility is maximized through the large, tinted Lexan skylight. Operator protection is afforded through the front guard. This swing-out guard is designed for quick and simple access to allow cleaning of the front window.

Mounting System


The Resilient Pad Mounting System includes a set of special rubber isolators on each mounting fastener that absorbs stress in two directions. An additional hydraulic accumulator is built into the main boom cylinder circuit to further absorb peak-load shocks.

Enclosed Components


Weatherproof electric service panels include starters, controls, transformers, circuit breakers and fuse blocks.

Motor Options


Electric motors range in horsepower from 75 to 100 hp and are totally enclosed and rated for severe duty. Power supply wiring packages provide for 440V/60Hz US or 575V/60Hz Canadian service.

Boom Length Options


Heavy-duty boom options range in length from 7.6 m to 10.9m (25' to 36') for handling a variety of tree lengths.

EQUIPMENT
Standard Equipment

Motor Power Supply
  • Electric Motor, 56 kW (75 HP) @ 1800 RPM
  • 460 Volt (60 Hz) Electric Power Supply
  • Four (4) Ring High Voltage Collector Ring
  • Service Panel, NEMA 12 Enclosure
  • Pump Drive, Direct Through Flex Coupling
  • Across-the-line Magnetic Starting System
  • Turntable Power Supply Mounting
Hydraulic System
  • Three (3) In-Line Gear Pumps
  • Radial Piston Swing Motor
  • Continuous Rotation
  • Electro Hydraulic (EHC) Controls
  • Single Element Return (3 mic) Filtration
  • Filtration Bypass Indicators
  • Diagnostic Nipples @ Pump for serviceability
Booms
  • 8.2 m (27') Knuckleboom
  • 22.8 cm (9”) Grapple Mounting Knuckle
Structural
  • Steel Mounting


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