Log grapple 4042HD with rotator RT-252

Product catalog summary

Specifications:
The Log Grapple with Rotator 4042HD RT-252 features a 42-inch (1067 mm) opening and a closing volume of 2.7 square feet (0.25 square meters). It has a rotator lifting capacity of 25,000 lbs (11,340 kg) and weighs 1,170 lbs (531 kg). The grapple is constructed from high tensile strength steel with a thickness of 3/4 inch (19 mm) and a tensile strength of 165,000 psi (1138 MPa).

Performance Parameters:
The grapple operates with a maximum pressure of 5,000 psi (345 bars) and a recommended flow of 9 gpm (34 l/min) for the rotator. The torque at relief pressure is 16,150 in.lb (1825 Nm). The grapple cylinder can complete an open/close cycle in approximately 4 seconds with a flow range of 15-23 gpm (57-87 l/min) and a pressure range of 2,500-5,000 psi (172-345 bars). The rotator can achieve a speed of 30 rpm at 1,450 psi (100 bars).

Options and Features:
Optional features include a log protection package with shaft on jaw tips and protection strips on jaw edges, and jaw tip modification to prevent log damage. An impact protection relief valve is also available. These options are standard on super-heavy-duty models.

Dimensions:
The grapple has a diameter of 3 1/2 inches (89 mm) and various reference dimensions for front and side views, including 4 1/8 inches (105 mm) for certain components.

Contact Information:
Rotobec Inc. provides contact details for their head office and branches serving different regions in Canada and the USA.

Note:
Specifications are subject to change without notice or obligation.

Catalog excerpts

Log grapple 4042HD with rotator RT-252-1

Log grapple 4042HD with rotator RT-252 Opening 42 in. (1067 mm) Closing .170 1388 Volume Area tip to tip 2.7 sq. ft. (.25 sq. meter) Rotator lifting capacity 25000 lb (11340 kg) Weight 1170 lb (531 kg) B C D E F G 3/4" (19 mm) OPTIONS: Log protection package, including shaft on jaw tips and protection strips on jaw edges. Jaw tip modification to prevent log damage (available on heavy-duty models, standard on super-heavy-duty models). Impact protection relief valve. Reference Dimension Front view Side view Steel* thickness Rotator Maximum pressure: 5000 psi (345 bars) Recommended flow: 9 gpm (34 l/min.) 4 1/8 in. (105 mm) cord of 8 ft. wood 4 1/8 in. (105 mm) 42 in. (1067 mm) 52 3/4 in. (1340 mm) 57 3/4 in. (1467 mm) 7 1/2 in. (191 mm) 16 1/2 in. (419 mm) 19 1/2 in. (495 mm) *High tensile strength steel: 165,000 psi (1138 MPa) H Torque at relief pressure 16150 in.lb (1825 Nm) Grapple cylinder maximum flow will theoretically produce a complete grapple open/close cycle in 4 seconds. 3 1/2" (89 mm) Diameter 2500 - 5000 psi (172 - 345 bars) Pressure range 15 - 23 gpm (57 - 87 l/min.) Flow range yes Cylinder Lock valves Standard 3000 psi (207 bars) Recommended pressure Rotator recommended flow will produce a speed of 30 rpm. @ 1450 psi (100 bars) A web site: www.rotobec.com e-mail: [email protected] We reserve the right to change specifications and to improve our products without notice or obligation. Rotobec Inc.: Head office serving OEM's and Eastern Canada Ph: (418) 383-3002 Fax: (418) 383-5334 Rotobec West: Branch serving Western Canada and Western USA Ph: (250) 765-1161 Fax: (250) 765-0035 Rotobec USA: Branch serving Eastern and Central USA Ph: (603) 444-2103 Fax: (603) 444-0327 V.06/2009

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