Tech Update - TIRES and CHAINS
Alliance also offers its rugged 331 Forest flotation tire, whose steel breakers provide 30 per cent more puncture resistance than nylon. Its strengthened bead area, reinforced under-tread and sidewalls, and mud guards can endure punishing forestry conditions. The 331 Forest is available in 13 sizes, from 500/60-22.5 to 800/_5-30.5.
Of similarly rugged constructionwith steel breakers, reinforced tread and sidewall areas, and tough lugsare the company’s 3_5 Forestar LS-2 tires for skidders, feller bunchers and forestry tillage machines, and its 3_6 Forestar LS-2 tires for harvesters, forwarders and harwarders. The 3_5 Forestar is available in 23.1-26, 28L-26, 2_.5-32 and 30.5-32 sizes. The 3_6 Forestar is available in 600/65-3_ and 700/55-3_ sizes. www.alliance.co.il
Firestone has also introduced seven LS-2 tires as tubeless construction. They can be used with a tube, but the advantages to the tubeless tire include: no wrestling with a tube during the tire mounting and no pulled tube valves with tire/rim slip or low air pressure operation.
Firestone continues to develop wide Flotation Logger 23 DT tires. They have a large footprint compared to conventional forestry tires, resulting in reduced ground disturbance and soil compaction. The 76 x 50.00-32 is designed to work on the largest skidders in the industry. All Firestone forestry tires feature cut resistant sidewall and tread compounds, heavy tread and sidewall gauges, and steel belted construction to minimize damaging punctures and cuts. Firestone also sells metric forestry tires for harvesters and forwarders and off-highway tires for wheel loaders. www.firestoneag.com
Mattracks provide a competitive advantage, having been proven capable, and are gaining popularity in many industries that require travel to worksites over difficult terrain. With Mattracks, it’s possible to get crew, supplies or maintenance
equipment to the job site in the worst conditions. They provide mobility and traction in mud, sand, snow, swamp and bog, allowing vehicles to get on site when access roads can no longer be traveled by tire-equipped vehicles. They fit most _x_ vehicles to 1-1/2 tons and are capable of traveling up to speeds of _0 mph on hard surfaces. They require about 30 minutes to change between tires and offer ground pressures as low as
1.5 psi. Mattracks also offers a track system rated for 20,500 lbs maximum GVW with its 200 Model Series. www.mattracks.com
Primex reports that loggers across North America are switching to its LogStomper Forestry Tires due to what the company says is the superb construction of the tires, along with the large variety of application-specific tires in its lineup. LogStompers possess a unique design. The LogStomper Fx features more lugs per tire, wider lugs than other forestry tires, and extra side bar protection through its Kevlar reinforced sidewalls and steel tread piles for tough long-lasting performance.
Compounding, developed over years of experience in the forest, reduces wear and chunking to deliver the performance expected by loggers seeking top quality and value. The LogStomper family includes the widest flotation tires in the world, according to the company, as well as the best variety of footprints, including both 23-degree (Fx) and 35-degree (SteelFlex) tread bars.
LogStompers are available in all popular North American sizes as well as metric sizes used on the latest European cut-to-length machines. The LogStomper family includes the LS-2, HF2, HF-3 and HF-4. www.gpxtire.com
The American Logger skidder tire is manufactured in the US by Specialty Tires of America, which has been manufacturing quality tires since 1915. Specialty Tires currently manufactures the American Logger tire in traditional sizes from 23.1-26 to 30.5L-32 and 18._-3_ in an LS-2 design, with a variety of ply load ratings. The American Logger tire includes the following features: four steel belts underneath the tread; rim guards to prevent stump penetration; a usable tread depth of at least 2”; and the bar is 23 degrees and spaced for easy mud cleaning and improved traction.
The American Logger has been field tested, and is made of rubber that resists tears and chunking. Also offered is a line of tires for industrial loaders and tractors primarily 2_” and 25” bead diameter. These tires are marketed under the American Contractor name. That line is offered as G/L2 Grader/Loader, E/L3 and E/L_ Rock Loader, L5 and L58 Mining/Loader and R_ Industrial Tractor. Specialty Tires is actively seeking new tire additions to serve the needs of the logging industry. The American Logger, American Contractor and other Specialty Tires products are distributed throughout North America. www.stausaonline.com
Trelleborg Wheel Systems
And the open tread pattern means these tires have excellent self-cleaning properties. The _28 has a wide, open tread pattern and enlarged contact areas, designed for maximum traction. The reinforced shoulders provide stability and comfort and create a safer working environment for the driver, not to mention reduced wear-and-tear on machinery. The company also offers a full range of popular skidder tire sizes. www.trelleborg.com
For demanding terrain deep in the woods or snow, the Profil-Greifsteg offers a diamond pattern with dense mesh for maximum grip. It has a specially-designed profiled grip link to ensure maximum traction. The Super-Greifsteg is designed for traction on packed down or smooth snow, as well as on bare ice.
The dense and continuous Kantenspur chain offers maximum grip, smooth running and long mileage. The Alligator is primarily used for snow removal or forestry operations. It features high-grip square links, is reversible and is extremely smooth running.
The Greifsteg and Greifsteg Twin feature intelligent chain technology, protecting against winter hazards. They have additional grip links with a unique grip profile designed to increase the traction and save wear and tear of tires. They are also economical thanks to the long-life chain mesh that can be used on both sides. www.rudchain.com
Readers Service Card #178
The deep biting lugs cut deeply into the terrain and the heavy-duty ring units put steel in the strategic points, protecting expensive tires from rocks, stumps and site debris. They are easy to install and are designed to wear out evenly. If any service work is required, common welding techniques and materials will get the job done quickly and easily.
LaGrand offers a wide range of ring skidder chains, available in either fixed ring or floating ring, with 9/16”, 5/8” or 3/_” tag chains to fit all popular sizes. And LaGrand’s floating ring system has oversized heavy-duty wear links connecting tag chains to its full 1-1/8” diameter rings. 1-800-288-0887
The large round studs of the double diamond or triple diamond double-studded net chain continuously penetrate the terrain for stability in harsh conditions and are available in 17/32”, 9/16”, 5/8” and 3/_” sizes. Bull Dozer ring chains offer oversize components in critical stress areas. The grip cleats are large and super hard, with sizes including 9/16” 5/8”, 3/_” and 7/8”. The special net skidder chain is two studs per link. Continuous aggressive traction and stability are available with Tight-Dozer (3/_”) and Mega-Dozer (7/8”) chains. The lug rings are close to each other, protecting the tires and providing a smooth ride. Made of alloy steel and fully case-hardened and annealed after assembly, Norse chains have been made in Norway for more than 70 years. The line also includes ATV, truck and tractor chains as well. www.novainternationalltd.com
Peerless Chain Company
The Peerless DUO-TRAC product offering covers truck, tractor and heavy equipment with varied options including standard or heavy duty cross chains, and regular or cam fastened truck chains. V-bar chains are also readily available. The DUOTRAC line is manufactured to the highest standards in the US. Additional purchased truck chains are also available through Peerless.
The latest Peerless development is the AUTO-TRAC, which is a self-tightening, self-centring, easy-to-use diamond pattern passenger and light truck chain. Peerless has eliminated the need
for additional tighteners to keep these chains snug, making re-
Trygg Tire Chain
All chains from Quebec Traction Chains Ltd undergo a surface hardening treatment process that increases the carbon and nitrogen content at the periphery of each treated piece, making the surface more resistant to wear and breakage, while improving the mechanical characteristics of its interior, the company says. All chain models are available in a variety of sizes and are suitable for use in heavy conditions in forestry applications, performing well in mud, snow and ice.
Quebec Traction Chains has a forestry chain to meet virtually every need, including regular ring chains, floating ring chains, net link with studs, diamond chains with bars, net link with bars, Forestrac (flat link chain), super grip, power chain, and ladder chain. www.chainestraction.com