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John Deere GR66B Rock Grapple
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GR66B Rock Grapple
Construction Attachments
Overview:
The GR66B Rock Grapple's marketing value story highlights its heavy-duty construction, versatile use for various tasks, enhanced operator visibility, and integrated hydraulic capability, making it essential for efficient land clearing and material handling.
- Land Clearing
- Brush Removal Applications
- Jobsite Clean-Up
- Enhanced Visibility
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Features
Increased Capacity and Improved Design
The rock grapple features 3-in. (7.6-cm) spaced tines supported on both sides for maximum bend resistance and a serrated cutting edge for penetrating tough ground. Its heavy-duty build includes a solid backplate, thickened components, and wide independent-action grapple arms to handle large, uneven loads efficiently.
Heavy-Duty Construction for Demanding Applications
Featuring thickened side cutters, side sheets, and backplates, the GR Series Rock Grapple provides unparalleled durability. The increased cylinder size supports high grapple forces, while weld-in serrated edges enhance ground penetration capabilities.
Two Independent-Action Grapples
Each unit includes two independent-action grapples that allow for optimal clamping action when grappling objects with non-uniform sizes such as root balls, large rocks, or demolition debris.
Specifications
Dimensions
| Weight | 510.3 kg |
| Weight | 1125 lb. |
| Bucket Width | 1676.4 mm |
| Bucket Width | 66 in. |
| Grapple Arm Width | 619.8 mm |
| Grapple Arm Width | 24.4 in. |
| Grapple Width | 1538.2 mm |
| Grapple Width | 60.6 in. |
| Bucket Depth Length | 970.3 mm |
| Bucket Depth Length | 38.2 in. |
| Grapple Closed Length | 1033.8 mm |
| Grapple Closed Length | 40.7 in. |
| Grapple Opened Length | 1059.2 mm |
| Grapple Opened Length | 41.7 in. |
| Grapple Closed Height | 828 mm |
| Grapple Closed Height | 32.6 in. |
| Grapple Opened Height | 1168.4 mm |
| Grapple Opened Height | 46 in. |
| Grapple Opening (Tine Tip) | 950 mm |
| Grapple Opening (Tine Tip) | 37.4 in. |
| Grapple Opening (Grapple Closed) | 459.7 mm |
| Grapple Opening (Grapple Closed) | 18.1 in. |
| Grapple Opening (Grapple Opened) | 1036.3 mm |
| Grapple Opening (Grapple Opened) | 40.8 in. |
| Pivot Pin Diameter | 34.9 mm |
| Pivot Pin Diameter | 1.375 in. |
Vehicle Compatibility
| Hydraulic Connection | 12.7-mm (0.5 in.) quick-connect couplers |
| Compact Track Loaders | 317G |
| Skid Steer Loaders | 312GR, 314G, 316GR, 318G |
Hydraulics
| Cylinder Bore Diameter | 63.5 mm |
| Cylinder Bore Diameter | 2.5 in. |
| Cylinder Rod Diameter | 35.6 mm |
| Cylinder Rod Diameter | 1.4 in. |
| Cylinder Stroke | 205.7 mm |
| Cylinder Stroke | 8.1 in. |
| Maximum Operating Pressure | 24131.7 kPa |
| Maximum Operating Pressure | 3500 psi |
Options
| Bolt-On Side Plates | Yes |
Contact Us
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325 Walt Messick Road
Harrington, Delaware 19952
Phone: (302) 398-3729
Toll Free: (800) 237-1272