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519 SM 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
  • Pilot Joystick Controls
  • Single Element Return (3 mic) Filtration
  • Filtration Bypass Indicators
  • Diagnostic Nipples @ Pump for serviceability

  • 8.2 m (27’) Knuckleboom
  • 22.8 cm (9”) Grapple Mounting Knuckle

  • 96.5 cm x 142.2 cm (38” x 56”) Right Side Mounted Cab
  • Reverse Slope Windshield
  • Tinted Safety Glass
  • Lexan Skylight
  • Sun Visor
  • Adjustable Seat with Armrests
  • Operator Protection Guard
  • Pressurized Cab with Heater
  • Analog Gauges
  • Electronic Gauges
  • Horn
  • Windshield Wiper/Washer
  • Defroster Fan
  • Lighter
  • Dome Light
  • Circuit Breaker Panel
  • Steel Mounting

519 SM Optional Equipment

575 Volt (60 Hz) Electric Power Supply

Non-Continuous Limited Rotation

Oil Reservoir Heater

7.6 m (25’) Knuckleboom

9.1 m (30’) Knuckleboom

30.5 cm (12”) Grapple Mounting Knuckle

Single “V” Heel

Double “VV” Heel

Air Conditioner

Concrete Mounting

30” Subframe Riser Mounting


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.


Maximum reach 32.6 ft 9.9 m Less

Operating Specifications

Knuckleboom Length 27.0 ft 8.2 m Less
Grapple Mounting Knuckle Length 9.0 in 228.6 mm Less
Swing Bearing Diameter 43.0 in 1092.2 mm Less
Swing Bearing Gearing External External Less
Electric Motor 75.0 hp 56.0 kW Less
Electric Power Supply 460 Volt: 60 HZ 460 Volt: 60 HZ Less
Operating Weight 15915.0 lb 7218.9 kg Less


Gross Power 75.0 hp 55.9 kW Less

Hydraulic System

Cylinders - Live Heel 127 mm X 76 mm (5 in X 3 in) 127 mm X 76 mm (5 in X 3 in) Less
Cylinders - Main 152 mm X 102 mm (6 in X 4 in) 152 mm X 102 mm (6 in X 4 in) Less
Cylinders - Stick 152 mm X 102 mm (6 in X 4 in) 152 mm X 102 mm (6 in X 4 in) Less
Hydraulic Flow 167/125/83 L/min (44/33/22 gpm) 167/125/83 L/min (44/33/22 gpm) Less
Hydraulic Pressure - Swing 2400.0 psi 16547.4 kPa Less
Hydraulic Pressure - System 2200.0 psi 15168.5 kPa Less
Swing Speed 8.0 RPM 8.0 RPM Less

Service Refill Capacities

Fuel Tank 42.0 gal 159.0 L Less


Operating Weight 15915.0 lb 7218.9 kg Less

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.

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