The Coated Sand Peeling Performance Tester (STK-A) is a professional testing instrument designed to evaluate the peeling properties of coated sand, an essential material widely used in modern foundries. By accurately replicating working conditions through controlled heating and timed testing, the STK-A provides reliable data to assess the performance and durability of coated sand, ensuring the quality and stability of casting production.

With its intelligent temperature controller, precision heating system, electronic timer, and automatic process control, this instrument offers consistent and repeatable results. It has become a trusted tool in foundries, research laboratories, universities, and quality inspection departments for studying and monitoring the peeling performance of coated sand.

1. Importance of Peeling Performance Testing in Coated Sand

Coated sand is widely used in the production of shell molds and cores for precision casting. Its performance directly affects mold strength, surface finish, dimensional accuracy, and defect prevention. One of the most critical performance indicators of coated sand is its peeling property—the ability of the sand to withstand heating and subsequent separation without deterioration.

Poor peeling performance can lead to defects such as:

• Weak mold release

• Surface cracks in castings

• Sand adhesion and inclusions

• Reduced casting precision

Therefore, reliable testing with instruments like the STK-A Coated Sand Peeling Performance Tester is essential to ensure quality consistency, process optimization, and defect-free castings.

2. Main Specifications

• Working Temperature: 232 ± 1 ℃

• Accuracy: ± 1.5%

• Controlling Temperature Range: 0–232 ℃

• Timer Setup: Discretionary, electronic digital timer

• Rated Power: ≤ 1.2 kW

• Power Source: AC 220V/50Hz (customized available)

These specifications ensure that the instrument can simulate industrial casting conditions with high precision and repeatability, making it an indispensable tool for foundry laboratories.

3. Instrument Features

1. Intelligent Temperature Controller

   • Ensures stable and precise heating of the tray.

   • Eliminates fluctuations and maintains consistency in testing conditions.

2. Electronic Digital Timer

   • Easy setup with high accuracy.

   • Provides full control of test duration according to experimental requirements.

3. Automated Test Process

   • Once parameters are set, the system automatically manages heating, timing, and process execution.

   • Reduces operator workload and minimizes human error.

4. Robust Design with Reliable Components

   • Includes a motor, funnel, heating tray, thermostat, sand plate, and timer.

   • Engineered for durability and long-term laboratory use.

4. Advantages of STK-A

• High Accuracy: ±1.5% measurement accuracy ensures reliable results.

• Consistent Temperature Control: Heating tray stability provides repeatable testing conditions.

• User-Friendly Operation: Simple setup with intuitive electronic timer and controls.

• Automatic Control: Minimizes manual intervention, saving time and labor.

• Energy Efficient: Low rated power (≤1.2 kW) with stable performance.

• Customizable Power Source: AC 220V/50Hz standard, with customization options for global users.

5. Applications

The STK-A is widely applied in multiple industries and sectors, including:

• Foundries – for evaluating coated sand performance in production and improving casting quality.

• Machinery and Casting Plants – ensuring reliable mold release and preventing defects.

• Quality Inspection Departments – as a standard tool for material testing and certification.

• Scientific Research Institutes – for studying the behavior of coated sand under controlled heating.

• Universities and Educational Laboratories – for teaching material science, foundry engineering, and applied research.

By using the STK-A, these sectors can ensure process stability, better casting surface quality, and improved product reliability.

6. Why Choose the STK-A Coated Sand Peeling Performance Tester?

The STK-A offers a balance of precision, automation, and ease of use, making it one of the most reliable instruments for coated sand testing. Key reasons to choose STK-A include:

• Designed specifically for coated sand peeling performance evaluation.

• Stable temperature control ensures accurate replication of real casting conditions.

• Digital timer and automated operation improve repeatability and efficiency.

• Compact, energy-efficient design suitable for laboratories and industrial use.

• Strong track record in foundries and research environments worldwide.

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Conclusion

The STK-A Coated Sand Peeling Performance Tester is a specialized, high-precision testing instrument that plays a vital role in evaluating the peeling properties of coated sand. With its stable temperature control, automated testing process, and easy-to-use interface, it enables foundries, laboratories, and research institutions to ensure consistent casting quality and reliable mold performance.

By integrating modern intelligent control systems with practical functionality, the STK-A has become a preferred solution for coated sand testing, supporting industries in maintaining higher efficiency, improved product reliability, and defect-free casting results.