Focus on grapples
By Staff Report
February 25, 2016 - Canadian Forest Industries checks out the latest grapples for the forestry industry.
Gripen grapples are lightweight and feature a low profile, with twin hydraulic cylinders to improve operation. Both the standard and heavy-duty grapples are available in sizes from 0.25m2 to 1.0m2.
By Staff Report
The CR X Grapple incorporates an innovative new tapered jaw profile. The new jaw shape increases timber-handling performance with the tapered profile more able to penetrate log piles, glide past obstacles and lift less debris from the forest floor. The tapered profile also offers better operator visibility of the jaw tip.
The T-Mar Extreme Series grapple is built tough with QT100 plate construction and heavy-duty service cylinders with counter balance valves. Featuring easy access to cylinders and rotary swivel, the Extreme Series provides simple trouble-free rotary swivel for heavy-duty applications. The Extreme Series is available in 60-inch and 70-inch sizes.
Due to their ability to securely clamp even thin timber with only 90 mm / 3.5 in and more, Kinshofer logging grapples are perfectly suited to handle single trunks. A sturdy construction, high quality components and a generously dimensioned bearing system contribute to the grapple’s long service life.
Doosan log grapple attachments are available in two models, one with a 52-inch opening and a second with a 58-inch opening. The LG52 is approved for use with the DX225LL, while the LG58 is approved for use with the DX300LL-3.
CWS’ Power Grapples feature durable and versatile design with hardened and chromed pins and tool cylinder control with continuous 360° rotation. They come in 20-ton, 25-ton and 30-ton models.
Mack Manufacturing’s line-up of attachments is a series of self-contained remotely operated attachments ranging from as little as 3/8 cubic yard up to a 20-yard capacity. The attachments are maneuvered by hand-held radio controls.
Hultdins by-pass type grapples offer a patented tapered sleeve pin design, sealed bushings with 1,000 hour greasing interval, cushioned cylinders, robotic welded construction throughout, and excellent arm geometry.
Rotobec Log Grapples feature an interlocking head structure structure, which maximizes durability ensuring solid uptime. The integrated cylinder guards on the jaw structure provide a high level of protection in all though handling applications. A Rotobec grapple saw can be mounted to the HD and SHD series grapples.
Pierce twin cylinder forestry grapples feature powerful 360˚ continuous rotation and are multi-purpose for excellent versatility. They feature an optimum leg shape for big wood, tight grapple closure for superior small log control.
The Power Clam Grapple from Murray Latta Progressive Machinery features high volumetric efficiency that provides minimal drifting and runs smooth at low RPM. The rotor is equipped with a piston motor and planetary gearbox. The grapple also features a powerful 360-degree rotation torque and hydraulic swivel with flow divider/combiner.