Stage Loft Rigging Blocks
To put on the best performance possible, every detail matters, down to the blocks in your counterweight rigging system. That’s why Thern Stage Equipment has designed durable, high-quality loft blocks that are easy to install and provide smooth, quiet operation during every performance. Most importantly, these blocks are engineered with an 8:1 design factor and conform to ANSI standards for manual and motorized rigging, which guarantees they will meet safety, performance, and quality requirements.
Does your venue or rigging system require customized loft rigging blocks? Don’t worry, our engineering experts have you covered, all you need to do is get in touch.
Product Description
Each lift line in the rigging system requires a loft block to direct the wire rope lift line from a batten over to the head block. Thern Stage Equipment loft blocks feature side plates and mounting angles integrated into one solid side piece with a turned Nylatron sheave. Standard options are available in either sequential multi groove or single groove with 2” idlers, while sealed precision ball and tapered roller bearings are also available.
Designed and engineered to last, our stage loft rigging blocks are made from heavy-duty materials. We guarantee consistent service life for your Thern Stage Equipment loft block by offering a two-year limited warranty to make sure that you’re 100% satisfied.
Key Features
- 6”, 8”, and 12” sheave diameters
- Various rope diameters from 1/8″ to over 1″ grooving
- Standard Nylatron sheaves included with optional steel sheaves available
- Upright, underhung, or throat-cut orientation
- Extended legs on upright blocks to reach across grid wells
- Smooth and quiet operation with precision ball bearings
Venue Applications
Large and small theater venues, arenas, churches, museums, convention centers, places of worship, and other large event facilities.
Customization Options
Thern Stage Equipment will work with you to customize your loft block with the features and accessories you need to suit your unique stage requirements. Options include:
- Mounting clips and Unistrut mount plates
- Steel sheaves
- Idlers
- Increased load capacities
- Groove arrangements
- Compound blocks
- Multi-directional assemblies
For more information, please contact customer service at 507-454-2996.
| Series Name | Orientation | Number of Grooves | Sheave Material | Wire Rope Diameter | Capacity |
| LB6 | Upright or Underhung | 1 – 9 | Nylatron | 3/16" | 525 lbs |
| LB8 | Upright or Underhung | 1 – 9 | Nylatron | 1/4" or 3/16" | 875 lbs |
| LB12 | Upright or Underhung | 1 – 9 | Nylatron | 1/4" or 3/8" | 875 lbs |
