Aspen’s PDX-Series (Petroleum Series) extreme duty trailers are designed for hauling skid mounted loads and construction equipment which primarily serve the Energy (Oilfield) industry and are suitable for both on road and off road applications. Capacity of this trailer is a payload of 60 tons, with axle configurations of 10 and 11 axles (including truck axles). Aspen PDX-Series trailers feature flat decks (no gooseneck) with tail rolls. PDX-Series trailers can be configured with various deck widths and lengths including custom options. The PDX-Series trailers have air-ride 8 wheels across suspensions (Wheelers), with transporter equalization achieved by combinations of jeeps & boosters with common air/regulated air suspensions. Aspen’s PDX-Series of trailers are available in specific regional configurations (mostly Western Canada) to maximize trailer configurations for specific regional regulations.