PRODUCT DETAILS
The Heavy-Duty Column Clamp with Ratchet Strap is designed to provide a stable mounting platform for total stations and other 5/8"-11 survey equipment. It uses a heavy-duty nylon ratchet strap to secure the clamp to structural columns, tunnel linings, railway poles, beams, and other suitable supports without drilling or permanent modification.
The adjustable column provides up to 12 inches (30 cm) of vertical adjustment, while the fine adjustment and rotating mounting structure help position the instrument accurately. This makes the clamp useful when a traditional tripod setup is difficult or when survey equipment needs to be mounted directly to an existing structure.
The 5/8"-11 thread adapter provides compatibility with common surveying instruments, including total stations, laser scanners, alignment lasers, and other equipment using a standard 5/8"-11 mounting thread.
The high-visibility yellow finish makes the clamp easier to identify in tunnels, construction areas, and low-light work zones. Its reinforced construction is suitable for demanding surveying and infrastructure applications where stability and repeatable positioning are important.

Specifications
| Specification | Details |
|---|---|
| Product Type | Heavy-Duty Column Clamp |
| Mounting Thread | 5/8"-11 |
| Platform | 6 in Flat Platform |
| Vertical Adjustment | Up to 12 in (30 cm) |
| Distance from Centerline | Approx. 10 in (26 cm) |
| Strap | Heavy-Duty 2 in (5.08 cm) Nylon Ratchet Strap |
| Strap Length | 10 ft (3.05 m) |
| Material | Structural Aluminum with Stainless Steel Hardware |
| Load Rating | Up to 2,200 lb (1,000 kg) |
| Approx. Product Weight | 10.35 lb (4.65 kg) |
| Platform Diameter | Approx. 6 in (15 cm) |
| Finish | High-Visibility Yellow Powder Coating |
| Packaging Dimensions | 47 × 37 × 29 cm (18.5 × 14.6 × 11.2 in) |
Package Includes
- 1 × Heavy-Duty Column Clamp
- 1 × Heavy-Duty Ratchet Strap
Applications
Tunnel Surveying
Mount a total station, scanner, or alignment instrument to tunnel structures when a conventional tripod setup is difficult or space is limited.
Railway Surveying
The ratchet strap system allows temporary mounting on suitable railway support structures without drilling or welding, making it useful for railway alignment and infrastructure measurement.
Construction Surveying
Use the clamp on structural columns, beams, and other suitable supports to create a stable instrument mounting point in active construction areas.
Structural Monitoring
The adjustable mounting system can help position surveying equipment for monitoring work on bridges, tunnels, buildings, and other infrastructure.
Industrial Measurement
The robust construction and high load rating make this column clamp suitable for demanding industrial measurement and alignment tasks.
Why Choose This Column Clamp?
This Heavy-Duty Column Clamp provides a practical alternative to traditional tripod setups when surveying equipment needs to be installed on an existing structure. The combination of a 5/8"-11 thread, adjustable column, fine adjustment bolt, rotating mount, and heavy-duty ratchet strap gives surveyors a stable and flexible mounting solution.
It is especially useful for tunnel surveying, railway surveying, construction layout, structural monitoring, and industrial measurement, where fast installation, equipment stability, and flexible positioning are important.