High-Temperature 250°C Metal Glue Probe Position Sensor

1. Why You Need It

Adhesive glue pots and hot-melt application lines hold glue at temperatures up to 250 °C — far beyond the rating of standard level probes. This high-temperature metal glue probe position sensor is built for 250 °C service, with a Teflon probe and aluminum alloy control box that withstand the heat. It provides fast, reliable glue level and position detection in adhesive pots, protecting against dry-run and overflow in demanding adhesive applications.

2. Working Principle

The sensor detects the glue level or probe position through contact sensing at the Teflon probe, switching its normally-open/normally-closed output when the medium reaches the set point. The Teflon probe resists both heat and adhesive build-up, while the aluminum alloy control box and IP65 shell protect the electronics. A <1 s response time and overload protection ensure dependable operation in high-temperature adhesive service.

3. Key Advantages

• 250 °C high-temperature rated
• Built for adhesive glue pots
• Teflon probe resists adhesion
• Aluminum alloy control box
• IP65 shell protection
• DC 24 V supply
• <1 s response time
• Normally open / closed output
• Overload protection
• 43 mm probe length

Common Pain Points & Solutions

Application Cases

Technical Specifications

FAQ

Q: What is a high-temperature glue probe position sensor?

It is a level/position sensor with a Teflon probe rated for 250 °C, designed to detect the level or position of molten glue in adhesive glue pots and hot-melt application lines. It survives the high temperatures that would damage standard sensors.

Q: Can it handle 250 °C?

Yes. It is rated for 250 °C high-temperature service, making it suitable for adhesive glue pots and hot-melt lines where the glue is held at elevated temperatures.

Q: Why is Teflon used for the probe?

Teflon (PTFE) resists high temperature and prevents adhesive build-up on the probe. For molten glue, this non-stick property keeps the sensor accurate and reduces cleaning requirements.

Q: What is the response time?

The response time is less than 1 second, providing real-time level detection for glue pots and application lines. This fast response supports accurate feed control and dry-run protection.

Q: What output does it provide?

It provides a normally-open / normally-closed output, which can be configured to match the control logic of the adhesive application equipment.

Q: What protection does it have?

It has IP65 shell protection against dust and water jets, plus overload protection. The aluminum alloy control box provides additional durability in the high-temperature environment.

Q: What power supply does it need?

It operates on DC 24 V, the standard for industrial control systems. This integrates directly with glue pot and packaging line controls.

Q: How is it installed?

The Teflon probe (43 mm long) is installed into the glue pot or adhesive tank, with the aluminum alloy control box mounted nearby. The output connects to the machine's PLC or relay.

Q: What media does it detect?

It detects molten glue, hot melt adhesive and other high-viscosity media at elevated temperature. The Teflon probe handles the stickiness and heat of these materials.

Q: Where is it used?

It is used in adhesive glue pots, hot melt application lines, bonding adhesive tanks and edge banding glue pots. It provides reliable high-temperature glue level and position detection.