Tinius Olsen’s Triaxial Test System is modular in design and can be customized to match a

Tinius Olsen’s Triaxial Test System is modular in design and can be customized to match a broad range of customer requirements. The system is composed of various components, with the key items being: This 50 kN capacity machine is delivered complete with an in-built electronic kit for triaxial testing of soil specimens up to 100 mm diameter x 200 mm long. It consists of a sturdy twin-column construction with an integral, completely variable microprocessor controlled drive unit and LCD display comprising a touch-sensitive keyboard. It is bench-mounted for easy installation and operation. The use of a microprocessor controlled drive system and keyboard entry offers the load frame with a broad range of features, including pause and speed reset during test, operator programming of speed and control functions, RS232 interface for computer control, and self-test diagnostics. A strongly constructed steel case accommodates the motor drive system and safeguards against water and dirt. All operating controls are mounted on the front panel of the machine, which is angled and recessed to avoid environmental and physical damage. The cells are for testing specimens that measure 38 mm diamete...

How trailer manufacturers are extending trailer lifecycles

Some trailer manufacturers have tried to help ease the maintenance burden by using more advanced and durable materials during construction. Brett Wilkie, field service engineer for advanced design and material for Wabash National, said component manufacturers also have upgraded factory coating application systems, which have shown to limit areas of minimal coating thickness. For barrier coatings, polymer-based products such as urethane, epoxy, vinyl, nylon, acrylic, polyester, wax and rubberized undercoatings typically are used. Sacrificial metal coatings such as zinc (hot-dipped galvanized), nickel, galvalume (zinc and aluminum) and biopolymer also are used to fight corrosion, said Chris Lee, vice president of engineering for Great Dane. Trailers can sit idle for long periods of time, making their steel components highly susceptible to corrosion. “The trailer (OEMs) have gotten rid of paint on the rear ends,” Steve Zaborowski, senior vice president for Xtra Lease, said. “We have all galvanized frames on dry van trailers. We have stainless on the rear frames of refrigerated trailers, and most of our flatbeds are now a combination of aluminum and steel combined. The less steel i...