SK-AB Vibrating Wire Anchor Bolt Load Cell
Short Description:
Overview
The Enviko SK-AB vibrating wire anchor bolt load cell, also called a bolt stress meter, measures bolt load and its changes online. It is used to monitor bolt preload and current stress in shield tunnel segment bolts, steel structure bolts and post-tensioned prestressed anchors. A built-in temperature sensor records ambient temperature, and a smart chip can be added on request.
Key Features
- Direct measurement of bolt preload, more accurate than controlling preload by torque
- Rated capacities of 200, 500, 1000 and 1500 kN
- 50% overload capacity
- Online, continuous monitoring of load changes
- Built-in temperature sensor; optional smart chip
Applications
- Shield tunnel segment fixing bolts
- Steel structure bolted connections
- Post-tensioned prestressed anchors
Specifications
Overview
The Enviko SK-AB vibrating wire anchor bolt load cell, also called a bolt stress meter, measures bolt load and its changes online. It is used to monitor bolt preload and current stress in shield tunnel segment bolts, steel structure bolts and post-tensioned prestressed anchors. A built-in temperature sensor records ambient temperature, and a smart chip can be added on request.
Key Features
- Direct measurement of bolt preload, more accurate than controlling preload by torque
- Rated capacities of 200, 500, 1000 and 1500 kN
- 50% overload capacity
- Online, continuous monitoring of load changes
- Built-in temperature sensor; optional smart chip
Applications
- Shield tunnel segment fixing bolts
- Steel structure bolted connections
- Post-tensioned prestressed anchors
Specifications
| Parameter | Specification |
|---|---|
| Models | SK-AB-20 / SK-AB-50 / SK-AB-100 / SK-AB-150 |
| Rated capacity | 200 / 500 / 1000 / 1500 kN |
| Overload capacity | 50% |
| Resolution | 0.05% FS |
| Non-linearity | ≤ 0.5% FS (linear); ≤ 0.1% FS (polynomial) |
| Accuracy | ±0.1% FS |
| Temperature range | −20 °C to +80 °C |
| Temperature accuracy | ±0.1 °C |
| Water pressure resistance | 0.5 MPa (up to 3 MPa on custom models) |
| Insulation resistance | ≥ 50 MΩ |
Product Detail
Enviko has been specializing in Weigh-in-Motion Systems for over 10 years. Our WIM sensors and other products are widely recognized in the ITS industry.
