Forestry and Logging Equipment: Skidding Tractor (Skidder) Caterpillar

Model	Specific ground pressure	Rolling bearings number on either side	Track shoes number per side	Contact with ground area	Caterpillar track length on ground level	Clearance
D5H TSK serie II		7		2.8 m2 - 4324.5 inch2	2740 mm - 9 ft.	559 mm - 1.8 ft.
D4H TSK serie II		7		2.4 m2 - 3751 inch2	2640 mm - 8.7 ft.	559 mm - 1.8 ft.
D4H	50 kPa - 7.3 lb / sq. inch	7	44	2.4 m2 - 3751 inch2	2636 mm - 8.6 ft.	559 mm - 1.8 ft.
545C grapple						533 mm - 1.7 ft.
545						605.5 mm - 2 ft.
535C grapple						533 mm - 1.7 ft.
535B						463 mm - 1.5 ft.
528						610 mm - 2 ft.
528						610 mm - 2 ft.
527 grapple		7		3.2 m2 - 4944.5 inch2	2850 mm - 9.4 ft.	531.8 mm - 1.7 ft.
527	55.2 kPa - 8 lb / sq. inch	7	41	3.2 m2 - 4944.5 inch2	2846 mm - 9.3 ft.	1080 mm - 3.5 ft.
525C grapple						581 mm - 1.9 ft.
525B						463 mm - 1.5 ft.
525						527 mm - 1.7 ft.
518 grapple						470 mm - 1.5 ft.
518 Cable						470 mm - 1.5 ft.
518						505 mm - 1.7 ft.
517 grapple		8		3.5 m2 - 5456 inch2	2910 mm - 9.5 ft.	635 mm - 2.1 ft.
515						457 mm - 1.5 ft.
508 grapple						521 mm - 1.7 ft.
508 Cable						521 mm - 1.7 ft.