Intelligent Temperature Control Coated Sand Prototype Machine
(QR-SAR-II)
Product Overview
The QR-SAR-II Intelligent Temperature Control Coated Sand Prototype
Machine is a precision instrument designed to prepare laminated sand bending and tensile standard specimens. It is widely applied in production, scientific research, teaching, and quality inspection for evaluating the mechanical performance of coated sand
materials.
The instrument is equipped with a heater, sample core box, bracket, and digital temperature
controller, with independent control for the upper and lower heating molds. This ensures uniform heating and provides stable and consistent specimen strength values across batches. With digital timing, PID temperature control, and
alarm functions, the QR-SAR-II is simple, reliable, and highly
efficient.
Main Specifications
| Parameter | Specification |
|---|
| Maximum temperature | 300 ℃ |
| Temperature control accuracy | ±1% |
| Sample size (bending test) | 22.36 × 11.18 × 70 mm |
| Sample size (tensile test) | 22.36 × 11.18 × 66 mm |
| Timing range | 0 – 999 seconds |
| Power supply | AC220V ±10%, 50Hz, 1500W |
Instrument Features
Microcomputer control of specimen temperature and time.
Digital display for intuitive operation and monitoring.
Provides constant temperature output for stable sample preparation.
Independent control of upper and lower heating molds, ensuring uniform heating.
Digital PID control system for precise temperature regulation and improved accuracy.
Timing and alarm functions, enhancing ease of use and safety.
Main Applications
The QR-SAR-II is widely used in:
Foundry and casting industries – preparing coated sand specimens for performance testing.
Machinery manufacturing – ensuring reliable mold material evaluation.
Scientific research institutions – studying coated sand properties under controlled conditions.
University laboratories – teaching and practical training in molding sand technology.
Quality inspection departments – producing standardized samples for accurate testing.
✅ Why Choose QR-SAR-II?
Produces highly uniform and reliable coated sand specimens.
Ensures accurate and consistent heating with separate upper and lower mold control.
Easy to operate and maintain with digital interface and alarms.
Suitable for industrial, educational, and research applications.
