Plastics – Global Trendsetting Technology
Plastic Thickness Gauge TG-2000
Jasch has been working in the plastics measurement industry for more than 28 years. Over this time, we have developed gauging solutions for many different production processes, including raffia tape plants, sheet extrusion lines, coating and laminations, calendaring lines, BOPP | Polyester and CPP lines.
The is designed to provide reliable, continuous and non-contact measurement during production. It helps manufacturers keep product quality consistent while also giving operators the information they need to improve process control.
Many leading manufacturers continue to rely on Jasch gauging systems because they are built for long-term industrial use. Some Jasch systems have been operating for more than 28 years.
As technology changes, existing systems can also be upgraded with newer EnvisionUltra, control and sensor technologies. This helps customers extend the life of their equipment instead of replacing a complete system.
Industry Processes
The system can be used with a wide range of plastics production
processes, including:
- Sheet extrusion
- Film coating
- Laminations
- Cast film
- Cellophane film
- Foam extrusion
- Co-extrusion
Measurement & Control
The system can be configured for different measurement and process
control requirements, such as:
- Non-contact thickness measurement
- Density measurement
- Basis weight measurement
- Co-extrusion measurement
- Layer discrimination
- Cascade MD control
- Roll control
- APC control
- SPOT-Track same-spot control
- Vision surface inspection
- Colour interpretation
- Data history
- Process analysis
- Remote connectivity
- Open architecture
The system is designed for reliable measurement in demanding production environments.
Key features include:
- Non-contact measurement
- High-speed scanning up to 250 mm per second
- Large colour TFT display for industrial environments
- Air-gap temperature compensation for measurement on hot webs
- Automatic calibration at predefined intervals
- Automatic web edge detection for accurate profile mapping
- Touch-screen controls for simple operation
- Precise O-frame construction, with optional pressurisation
- Rugged construction designed to reduce deflection and alignment issues
- Detailed production reports
The gauge sensor uses a large-volume pressurized ionization chamber combined with a stable electrometer amplifier. This design provides reliable and consistent measurement during production.
The scanner is built on a rugged steel structure designed to keep the sensor accurately positioned. Its linear motion components are CNC machined for precise alignment and long service life.
The frame uses an enclosed construction to help protect mechanical and electronic components from dust and corrosion.
The scanner connects to the operator station through a high-speed LAN communication. The operator station uses standard PC hardware and software, which makes future upgrades and local support easier.
The touch-screen interface gives operators access to important production information such as:
- Cross-web profiles
- Machine-direction profiles
- Trends
- Product recipes
- Roll reports
- SPC charts as an optional feature
The system can be integrated with process control systems to help
maintain consistent production.
Machine Direction Control
Machine direction control can be achieved through:
- Line speed control
- Extruder screw speed control
Cross Direction Control
Cross direction control options include:
- Die bolt heating control
- Roll bending control
- Cross-axis control
- Roll gap control
- Coating knife or blade control
These options allow the gauging system to work together with the production
line and help operators respond to measurement changes during manufacturing.
The measuring principle is based on the attenuation of Beta or X-ray radiation as it passes through the material.
A radiation source produces energy with a known intensity. As the radiation passes through the material, part of the energy is absorbed. The system detects this change and uses it to determine the material thickness or basis weight.
Because the measurement is continuous and takes place directly on the production line, the collected data can also be used for automatic process control.
This gives manufacturers better visibility of the process and helps maintain consistent product quality.
TG-2000 — KR-85
| Specification | Details |
|---|---|
| Radioactive Source | Krypton-85, 200 mCi |
| Accuracy & Repeatability | ±25% or 0.25 GSM, whichever is greater |
| Measurement Range | 10–1200 GSM (g/m²) |
| Air Gap | Up to 15 mm |
| Operating Temperature | 0–50°C |
| Sampling Time | 10 ms |
TG-2000 — SR-90
| Specification | Details |
|---|---|
| Radioactive Source | Strontium-90, 50 mCi |
| Accuracy & Repeatability | ±25% or 0.5 GSM, whichever is greater |
| Measurement Range | 30–5000 GSM (g/m²) |
| Air Gap | Up to 30 mm |
| Operating Temperature | 0–50°C |
| Sampling Time | 10 ms |
TG-2000 — X-Ray
| Specification | Details |
|---|---|
| Source | X-Ray, selectable energy and power according to application |
| Accuracy & Repeatability | ±1% or 0.1 GSM, whichever is greater |
| Measurement Range | 10–10000 GSM (g/m²) |
| Air Gap | Up to 25 mm |
| Operating Temperature | 0–50°C |
| Sampling Time | 10 ms |
Let's find the right gauging solution.
Talk to our team about your production requirements and application.