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Explosive growth in the compact track loader market can be attributed to the low ground pressure and increased tractive force provided by rubber tracks vs. wheels. But closely examine the rubber track undercarriage systems on competitive units and you quickly realize there are major design differences.

Some manufacturers opt for suspensions systems; others mount the undercarriage rigidly to the frame. Some undercarriage systems are more complex with more moving parts, and drive and idler components vary between manufacturers.

The unique design of the undercarriage is really what sets the performance of one manufacturer's compact track loader apart from the rest. It is important to understand the differences prior to making a final purchase decision. Let's explore some of the key track designs available. Track systems from other manufacturers should closely parallel one of the systems discussed here.

ASV

"ASV's technology can be divided into three equally important categories: contact points, internal drive and suspension," says Brad Lemke, director of new product development.

Contact points (bogie wheels) transfer the vehicle weight through the track into the ground. "By having more contact points, more area of the track is transferring vehicle weight, thereby allowing much more traction," says Lemke. "Having more contact points also reduces the amount of weight per wheel.