SuperGrip II-A

SuperGrip II-A

This unique A-grapple has arms with asymmetrically angled knives, hence the name. Everything that the tips of the arms grab hold of is pulled into the grapple while everything else is pushed out. This means that you don’t need to start over as often as with a regular grapple. The tips of the arms also make it easier to separate the timber and select individual logs. You can easily pick things up with greater precision, a bit like using your thumb and forefinger. As the grapple body closes around the timber, it settles into place.

Improved grasping and less debris

The angled knives help the timber roll into the grapple. With straight knives, there is a substantial risk of a log or branch landing perpendicular and interfering with the closing of the grapple. The A-grapple’s angled knives, on the other hand, feed everything that the arms grab into the grapple while forcing everything else out. This means that nothing ever gets stuck between the knives and the grapple easily dips into the log pile. Minimal surface contact with the ground also means that the A-grapple scoops up less soil and moss compared to a conventional grapple. The large spaces formed between the tips of the knives when closing also help keep the grapple free from debris.

Higher productivity with both roundwood and brushwood

In a study from Skogforsk, the Forestry Research Institute of Sweden, an A-grapple enabled roundwood to be loaded 4% faster and unloaded 7% faster than a conventional grapple. In addition to an A-grapple considerably increasing roundwood productivity, it makes for an excellent brushwood grapple. Unlike the airy bird’s nest-like bundles a regular brushwood grapple makes, the A-grapple’s angled arms compress the brushwood into tight bundles. This contributes to both heavier loads on the forwarder/timber truck and tidier brushwood piles.

Unbeatable in steep terrain

With an A-grapple, you can also pick up a log that is lying or standing on a steep slope. Simply rotate the arm tips inwards, lower the grapple so that the tips pass the midpoint of the stem, and close the grapple. The log will then simply roll into the grapple.

SuperGrip II-A
SuperGrip II-A
SuperGrip II-A

compare the models

SGII 260A

SGII 260A

Grapple Area 0.26 m2
Max. Load 3 500 kg
Weight 200 kg

SGII 300A

SGII 300A

Grapple Area 0.30 m2
Max. Load 3 500 kg
Weight 205 kg

SGII 360A

SGII 360A

Grapple Area 0.36 m2
Max. Load 5 000 kg
Weight 326 kg

SGII 420A

SGII 420A

Grapple Area 0.42 m2
Max. Load 5 500 kg
Weight 370 kg

Technical specifications

260A 300A 360A 420A Weight kg 200 212 343 377 Max. load kg 3 500 3 500 5 000 5 500 Gripping area m2 0,26 0,30 0,36 0,42 Max. gripping width mm 1 520 1 485 1 840 2 037 Overall grapple width mm 460 460 548 548 Height, arms tip–tip mm 945 975 1 060 1 129 Max. height arms open mm 830 876 888 928 Min. height arms closed mm 583 579 689 695 Grapple jaw width mm 388 388 468 468 Min. gripping diameter mm 110 110 150 180 Gripping force, arms open, at 25 MPa kN 12,0 12,0 19,0 20,2 Gripping force, arms tip–tip, at 25 MPa kN 14,3 14,3 22,9 24,3 Opening time, at 50 l/min s 1,0 1,0 1,8 2,6 Closing time, at 50 l/min s 1,7 1,7 2,6 3,5 Max. operating pressure MPa 25 25 25 25

documentation

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