Specifications include, but are not limited to: 2.1.1. The trailer is to be the manufacturer’s current heavy-duty design with all standard advertised equipment/accessories provided unless otherwise superseded by these specifications. The delivered trailer shall be certified for highway travel with a 25-ton payload at 50 mph. The trailer must be designed with appropriate weight distribution, (without counterweights) both empty and loaded, to track straight when travelling down the highway.2.1.2.FRAME: The frame shall be designed with appropriate safety factors and electronically welded where steel meets steel. One-piece tongue, main beam, and beaver tail, cold formed. Main frame beams shall be sized appropriately for weight rating required, 12” deep minimum, and be high tensile steel. Cross members shall be 6” deep, minimum, high tensile steel, and the side members shall be 8” deep, minimum, high tensile steel. All cross members shall be pierced through the main frame on 16” centers maximum. Head rail shall be at least 8”. The trailer shall have a 7” minimum headboard, full width. 2.1.3.UNDERCARRIAGE:The undercarriage shall be equipped with:2.1.3.1.Three axles, 22,500# minimum rating, with oil wheel seals. Filled with synthetic oil.2.1.3.2.Provide and install hub meter prior to delivery.2.1.3.3.Hutch 9700 suspension, or as appropriate for a 25-ton GVWR.2.1.3.4.Full air brakes, with ABS, on each axle with breakaway control valve and air reservoir tank. 2.1.3.5.Provide 3030 MGM black Max brake chambers P/N - 3232951. 2.1.3.6.The air tank(s) shall be equipped with a remote bleeder. 2.1.3.7.Air brake hoses shall extend a minimum of 4’ ahead of the pintle eye and come complete with couplers and dust covers.2.1.3.8.Provide 8 bolt hub piloted wheels. Twelve (12) tires, minimum 215/75R17.5 16-ply radials. One spare wheel and tire shall be provided with each trailer.2.1.3.9.Provide valve stem extensions on inside wheels.2.1.4.DIMENSIONS:2.1.4.1.The trailer shall be designed so that 12 to 15 percent of the empty trailer weight is on the pintle eye.2.1.4.2.Bed length 29’-0”, including 5’ beaver tail.2.1.4.3.Width: 8’-6”.2.1.4.4.Standard, removable, spring assisted metal ramps.2.1.4.5.Height when loaded: 33” maximum.2.1.4.6.5’-6”, tongue with expanded metal bottom. To include a lockable chain/toolbox.2.1.5.Provide an optional quote for manufacturers standard air operated ramps, if available to meet the following specifications: Sized appropriately for loading and unloading tracked excavators weighing approximately 38,000 pounds. Removable ramps with 2” oak decking, stored vertically, with a locking mechanism. Lock shall be installed so that the tracks of an excavator will not contact lock or any of their mounting points.