Specialized Device For Producing Standard Resin Sand Samples Vibration Compaction Test Results With QR-SAH Prototype

Product Overview

The QR-SAH Resin Sand Sampling Machine is a specialized device designed to produce standard resin sand samples for detecting gas permeability, compressive strength, shear resistance, tensile strength, and thermal stability.

Its working principle combines vibration energy and the pressure of a heavy block to ensure uniform compaction of samples. The vibration compacts the lower portion of the sand, while the upper portion is densified by the applied block weight. By selecting appropriate weights, the machine eliminates differences in compactness between the upper and lower parts of the sample, ensuring reliable and accurate test specimens.

Working Principle Formula

• Vibration energy = G × H × N

• Compaction energy = Q × H × N

Where:

• G = sample sand weight

• Q = heavy block weight

• H = shock height

• N = number of hits

• Energy loss due to shock is accounted for by a coefficient.

Main Specifications

Instrument Features

1. Compact structure composed of rack, bottom plate, sample box, pre-filled box, broaches, guide plate, weight block, handwheel, and cam.

2. Capable of preparing multiple standard samples simultaneously, improving efficiency.

3. Ensures consistent density distribution across specimens.

4. Durable aluminum alloy molds for different test applications.

Main Applications

The QR-SAH Resin Sand Sampling Machine is widely used in:

• Foundry and casting industries – preparing resin sand specimens for mechanical and thermal testing.

• Machinery manufacturing – quality control and material evaluation.

• Scientific research institutions – development and analysis of resin sand properties.

• University laboratories – teaching and training in molding sand testing.

• Quality inspection departments – standard sample preparation for reliable testing.

✅ Why Choose QR-SAH?

• Produces accurate, standardized resin sand samples.

• Eliminates density variation between upper and lower specimen parts.

• Can prepare different types of test samples (compression, tensile, thermal stability).

• Strong structure, simple operation, and reliable performance.