Used GP Pre Rigged

GP Pre Rigged

Pre-Rig truss is 30" x 26" in size. It is manufactured from aluminium tube 6082-T6 with 2" x .125"
wall thickness for main tubes and 1" x .125" wall tube for the diagonals. Each truss piece has 4 Castor
wheels for easy maneuverability and bolts for the connection of truss pieces.
Each truss is designed to carry 2 lighting bars complete with lanterns. The lighting bars are stored
internally in the truss and can be lowered to the working position when in use. This design reduces the
amount of space required for lighting and rigging in the truck. Each truss is also designed to carry a
varying amount of lanterns, the 10' section cArries 2 bars of 8 lanterns, 7' 7"section cArries 2 bars of 6
lanterns, 5' section cArries 2 bars of 4 lanterns, and the 3' 9-1/2" section cArries 2 bars of 3 lanterns. This
feature enables great flexibility in the truss design.
The Pre-Rig truss accepts a modified lighting bar which have 2 sleeved holes in them. The lighting
bars are located inside the truss by guide rods. In the storage position the bars are securely held in the
truss by shank hooks. The whole system can be used with our Ground Support System by using suitable
sleeve BLOCKs and towers.

Used James Thomas Engineering

James Thomas Engineering Ltd began February 1977 in a small garage located in Bishampton, England. James Thomas and John Walters engineered and built the first spun aluminum Par Lantern which has become the industry standard. The company moved to Pershore in 1978 to a converted office unit and then to a 5,000 square foot unit in 1980. James Thomas Engineering started manufacturing truss and soon after the General Purpose Truss came into being. The total product range began to expand with additional sizes of Par Lanterns, Lighting Bars, Par 36 Spot Banks, Pinspots and other sizes of General Purpose Truss. In 1983, James Thomas developed the original Pre-rigged Truss System which was used by a major rock band on its world tour. In 1984, the company relocated into a 10,000 square foot factory at Station Approach, Pershore. The first Ground Support Tower System was also developed that year. Then in July 2000, the UK office moved to a 52,700 square feet facility with additional welding facilities, shipping warehouse, electrical department, drawing office, and administrative offices. Meanwhile in 1990, James Thomas Engineering began manufacturing in the USA to allow simultaneous production of truss on both sides of the Atlantic. This operation continues to expand and now occupies 15,000 square feet of space. In 1992, the Supertruss system was designed and has proved that the innovative skills at James Thomas Engineering still lead the way in the industry. In 1996, the company started production of the Baby Tower. In October 2001, the US office relocated to a new purpose built facility providing 30,000 square feet on a 6.28 acre site. This has allowed James Thomas Engineering to continue to offer the service the industry requires. James Thomas Engineering offers Truss Design and designs including Roof Truss Design, Steel Truss Design, and Metal Truss Design.

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Used Pre-Rig Truss

A pre-rig truss is a truss that comes already rigged together and ready to use – therefore, it cannot be flat packed, folded away or taken apart. Often used in theaters and outdoor concert venues, the pre-rig truss is the principal structure for stage lighting fixtures to be secured to. They are incredibly strong structures, able to comfortably bear the weight of all kinds of lighting fixtures, which can be very heavy. The pre-rig truss is capable of bearing incredibly heavy loads, although users should be aware that the longer the span of the pre-rig truss, the less load bearing ability it actually has, as more stress is applied to longer spans. Polished aluminum tubing is the material of choice used in a pre-rig truss, as this metal is both affordable and lightweight, while it is also very strong. The diagonal braces are also typically made from aluminum, and it is these braces that give the pre-rig truss its strong load bearing ability. Various different lengths and sizes are available when buying a pre-rig truss, so buyers can choose a truss that is best suited for their needs. Two of the most common sizes of pre-rig truss are the 15” x 23.5” pre-rig truss, and the 30” x 26” pre-rig truss, although many other sizes are available too. One disadvantage of the pre-rig truss is that it is unable to fold up, or be packed away very easily, as it is a solid, pre-made structure, and so transportation of this equipment isn’t easy. Therefore, these trusses are often preferred for permanent installations.