Self-Climbing Trusses by Thern Stage Equipment
When overhead space is limited, Thern Stage Equipment’s self-climbing truss allows you to lower and raise stage elements and production equipment with ease.
What Is a Self-Climbing Truss?
Our self-climbing truss consists of a hoist installed inside of an aluminum truss with wire rope that winds onto rigidly mounted internal drums. These hoists are controlled by electronic control systems for precise and consistent lifting and positioning. The self-climbing truss system is ideally suited for smoothly and reliably raising and lowering pre-rigged stage elements and equipment.
How a Self-Climbing Truss Works
A line shaft style hoist is integrated into a truss for a self-contained solution. For lifting and lowering, wire ropes are wound into drums that are mounted inside the truss. This allows for the raising and lowering of curtains, lighting, drapes, scenery, and other equipment. Self-climbing trusses help simplify complex lifting loads on venue structures as well. Our self-climbing truss can be combined with various control options for easy operation.
Why Choose a Thern Stage Equipment Self-Climbing Truss?
With robust, durable construction and reliable operation, our self-climbing trusses can provide many years of high-quality performance. We can also provide customized self-climbing truss systems to perfectly meet the needs of your venue, including longer travel distances, finishes, controls, and much more.
Product Description
Designed to reduce or eliminate the need for rafter-mounted rigging equipment, this self-climbing truss is the ideal solution for raising and lowering lighting, curtains, drapes, scenery, and other equipment without requiring overhead space. It can also simplify complex lifting loads on a building and expedite installation. Lift lines connect to the overhead structure for a convenient, complete solution with no machinery mounted to the structure itself. The Thern Stage Equipment self-climbing truss is an excellent solution for front-of-house lighting where a stable and versatile lighting position is needed.
Made to last, our components are constructed with durable, heavy-duty materials. We guarantee consistent service life for your Thern Stage Equipment self-climbing truss by offering a two-year limited warranty to make sure you’re 100% satisfied.
Key Features
- Easy-to-install modular design
- 12” x 18” or 20” x 20” truss sizes available
- Lengths up to 70 feet
- Self-contained
- Minimal headroom required
- Adjustable drum spacing
- Primary and secondary brakes come standard
- Stable suspension with two lift lines per pick point
- Available in multiple three-phase voltages
Operation Guidelines
For installation, preparation, cleaning, and additional operation instructions, please refer to the owner’s manual.
Venue Applications
Large and small theater venues, arenas, churches, museums, convention centers, places of worship, and other large event facilities.
Customization Options & Accessories
Thern Stage Equipment will work with you to customize your self-climbing truss with the features and accessories you need to suit your specific application. Options include:
- Pantograph with integrated recessed truss sections for compact storage heights
- Raceway
- Lengths
- Travel distances
- Speeds
- Structure anchors
- Simple and advanced controls
- Truss finishes
| Series Name | Gross Load Rating* | Min. # of Drums** | Travel Distance*** | Wire Rope Diameter |
| CT25 | 2,500 lbs | 4 | 30' | 3/16" |
| CT40 | 3,920 lbs | 4 | 40' | 1/4" |
*Gross Load Rating includes all equipment including truss, hoist, pantograph, raceway, lighting equipment, and other loads. Net available capacity is dependent on factors such as options and length.
**Standard unit is comprised of three drum sections and one motor section.
***Greater travel distances are possible. Contact the factory for a quote.
Frequently Asked Questions
What is a self-climbing truss used for?
Lifting, lowering, and positioning equipment like lighting, curtains, scenery, drapes, and other stage production elements, without the need for ceiling-mounted rigging.
How much weight can a Thern self-climbing truss hold?
Up to 3,920 lbs.
What sizes and lengths does the Thern self-climbing truss come in?
Sizes are 12” x 18” or 20” x 20”, with lengths up to 70 feet available.
Where can a Thern self-climbing truss be installed?
Self-climbing trusses can be installed over stages with limited rafter room or as solutions for front-of-house elements like lighting. Contact a licensed structural engineer before installing trusses of any kind in your venue.
Does the Thern self-climbing truss come with a warranty?
Yes, our self-climbing trusses come with our standard two-year warranty.
Upgrade Your Venue’s Lifting System
For venues searching for lifting and positioning solutions with limited space, self-climbing trusses are the perfect option. If you aren’t sure about the best self-climbing truss for your venue, contact our team or give us a call at 507-693-6463. You can also reach out to our engineering experts to find custom solutions.
