Self Climber


Self Climbing Truss


The RI self climber is unique in the industry. It is designed to take problem situations and make them easy solutions. It is the most versatile truss for front of house lighting positions and overstage electrics. Each unit is equipped with two or more dual cable drums, a lifting gear motor, and a pantograph feeder system for motor and lighting power.



Each section is designed for form and function to mount drums, motors, shafts and pantographs. The machinery is actually part of the truss.

•Custom built modules of 18" X 12" box truss by James Thomas Engineering.

• Imbedded CS connector strips free truss space for the hanging of lighting equipment.

• Cable drums are CNC helically grooved with twin-helix that keeps the truss from walking end to end and have a breaking strength of 4,200 lbs each.

• Helical gearmotors with fail-safe disk brakes. Drums are connected by solid shafting with heavy duty chain couplings.

• Pantographs elegantly and neatly provide electrical and data management. The five compartment extrusion features room for lighting circuits, ground, motor and control, DMX, and NET cables. Up to 24 circuits can be accommodated with six cables. Motor control cables are run in special yellow jackets to distinguish them from other lighting cables.



• Revolutionizes access to fixtures and equipment.

• Lowers machinery to the floor for easy visual inspection.

• Lateral load on building structure is eliminated.

• Pantograph and truss can rise significantly closer to the ceiling.

• Requires minimal access above ceiling for installation.

• Able to span great distances between lift points.

• Provides solid attachment for moving fixtures.


Self climbers can be built to your specifications.  The chart below lists the most commonly used configurations and are designed for the fastest shipping.



This chart shows the most common varieties traveling at 18 FPM and the relationship of the design factors.  All SC1812's have a travel distance of 30'.  Available in 208, 240, 460 volts.  International voltages of 220v, 380v, 415v 50hz or 60hz available.

Custom variations are our specialty.  Custom sizes are available to meet any venue's needs.


ST20.5-b Proto