APPI Hydraulic Yarding Systems

High Profit Production

APPI has been supplying hydraulic yarding systems for more than 30 years with hundreds of systems in operation in the field.

Our hydraulic yarding systems can be installed either log loaders or excavators without detracting from the original use of the machine as they have the ability to switch from loading / excavating to yarding in minutes. Operators can easily set up for logging using gravity carriage (uphill settings), highlead (downhill or flat settings) logging or a combination of both.

As the equipment will be capable of multiple use you’ll have lower operating costs, diminished capital investment and increased year-round flexibility.

To discuss project specifics or request a quote contact us at (503) 626-0654.

High Performance System with:

Two speed shift-on-the-fly inhaul and high-speed power-out reverse

Sealed winch design; all components in full oil bath

Automatic, oil-cooled brake

APPI valving to integrate machine hydraulic system and control with winches

Brake interlock manifold for highlead or gravity carriage yarding

APPI cab-mounted electrical control console with indicator lights


loggingNEW


Our Solutions at work

    Typical Winch Performance (please inquire for other winch systems)
Bare Drum
Mean Drum
Full Drum
Low Speed in haul:
25,000 lbs.@ 139 fpm
16,049 lbs.@ 218 fpm
11,818 lbs.@295 fpm
High Speed in haul:
5,360 lbs.@ 646 fpm
3,437 lbs.@1,018 fpm
2,531 lbs.@1,378 fpm
High speed pay-out:
646 fpm
1,018 fpm
1,378 fpm
    Wire Rope Capacities
 
1/2″
9/16″
5/8″
3/4″
7/8″
#2 Drum
1209′
952′
728′
516′
403′

#3 Drum
1869′
1471′
1125′
797′
623′

#4 Drum
2419′
2076′
1456′
1032′
806′
      

Options Include

Cab adjustable line tension controls

Gear, vane or piston motors

Optional reduction ratios for higher speeds

Freespooling

Guyline and haywire winches

Integrated controls for:

Two-speed shift

Brake release

Motor, brake and clutch cooling