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Valby Tractor Grapple Model SGR 76

Bypass Tractor Grapple: 

The modern bypass tractor grapple is an improvement over clamp grapples.  The Valby tractor grapple is unique in that it has a double jaw on one side, and a single jaw on the other.  As the grapple closes, the double jaw inter-meshes with the single jaw.  The form of the bypass grapple provides for easy "roll in" of the logs.  The logs are then held firmly in place because the load is supported from all directions by the bypass jaws

Click here to watch a short video of the SGR76 tractor grapple.  This may take up to 2 1/2 minutes to download, depending on the speed of your internet connection.

 

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The Valby SGR76 Grapple converts your farm tractor into a productive forest machine.  It can be used three ways: 

Skidding: 

The skidding grapple is your best choice machine if you work on flat terrain, which is dry, and you have a large tractor with sufficient front end weights.  The ruggedness of the grapple enables multiple tree length stems to be skidded out at one time. 

Transport of Small Stems:

Small stems, stacks of pulp wood, brush, and slabs can be lifted clear off the ground.  This keeps the material clean, and transfers the weight of the material to the rear tires, for added traction.

Stacking:

The side-shift function enables easy placement of the material in stacks.  The hight of the stacks depends on the tractor, but four to five foot stacking heights are typical. 

Side-Shift:

The Valby SGR76 can be side-shifted 30 degrees to either side, as shown in the photo below.  Side shifting allows the operator to grab loads from the side, without spending time maneuvering the tractor.  The side shifting also allows for controlled stacking of pulpwood and similar materials. 

wpe9E.jpg (20277 bytes) The Valby SGR 76 has a hydraulic side shift, which enables it to be used for stacking.

Durable Design:

The grapple is designed to endure years of professional use.   The materials used are thick, and the jaws are boxed for added strength. 

Both cylinders of the grapple are welded design, and have an inside diameter of over 3".  That provides strong holding pressure for the jaws that hold onto the logs.  The cylinders can take pressure of up to 2900 PSI.   The piston is also overdimentioned, and has a diameter of almost two inches.   Click here for a close up of the cylinder.

Every joint has a grease fitting, and the unit weighs 680lbs.   The head-board plate can be used to bunch the logs into piles suitable for transport by the tractor grapple.   The jaws are made to withstand hard use, and the pins have large diameters.

 

Mounting:

The grapple mounts on the three point hitch of any category II tractor between 50 and 100 HP.  The tractor must be equipped with a full set of front end weights.  The grapple has a parking stand, which enables easy hook up and removal of the machine. 

The grapple needs two pairs of hydraulic outlets off the tractor.  One pair opens and closes the grapple.  The other pair works the side shift.  If the grapple is used for skidding, when the ends of the stems drag on the ground, then one will benefit from having a floating position on the valve that operates the side-shift.  Your dealer can retrofit older tractors with a valve that has a float position. 

For front end weight requirements, click here.  Skidding grapples work best in clear-cuts.   If you are working in hilly, wet, or slippery terrain, or if you want to reduce damage to the  stand by selective cutting, there is equipment that will work better than a skidding grapple.  Click here to read about the Farmi Tree Harvesting Method.

Technical Data
Weight: 680 lb.
Max. Grapple Opening: 76"
Side Shift: 30 degrees right or left
Cylinder Inside Diameter 3"
Cylinder Piston Diameter 1 15/16"
Max. Working Pressure 2900 psi
Mounting: Cat. II tractors, 50 to 100 HP
 

Northeast Implement Corporation.  Please email us at   valby@baka.com  with any questions concerning our products.

Phone: (607) 589-6160  Fax: (607) 589-4026  Mail:   PO Box 402, Spencer, NY 14883