Web tension control refers to the various methods used to measure and adjust tension in a moving web.

Load Cells

The terms load cell is used interchangeably to describe a sensor that accurately measures the tension in a moving web.

Installation of Load Cell

Basic method

1. The operator estimates the web tension by hand and makes manual adjustments to the process.

This approach requires 100% operator intervention.

Better Method

2. Load cells are used to measure tension and the value is displayed on an indicator.

The operator still manually adjusts the tension.

This requires a great deal of operator intervention.

Best Method

3. Load cells are used along with controllers and actuators to automatically measure and adjust web tension.

This approach requires minimum operator intervention.

Types of Load Cell

Model C Tension Transducer

NW Narrow Web Tension Transducer

Tension Roll® Transducer and STR Segmented Tension Roll transducer

Tension Roll® transducers and dead-shaft idler roll are combined in one integral unit.

Ribbon Filament Transducer

VNW Very Narrow Web Transducer

LT - Low Tension Transducer

Model F Heavy Duty Transducer