Understanding the SSZ Shock-Swing Sand Screening Machine: Principle and Applications

　　The SSZ Shock-Swing Sand Screening Machine is a laboratory screening instrument used for particle-size analysis of molding sand,silica sand,ceramic sand,and other granular materials.It is typically operated together withφ200 mm standard test sieves to determine the gradation of sand samples in foundry laboratories,quality-control rooms,and material-testing environments.

　　Working Principle

　　The machine adopts a combined swinging and shock motion to improve screening efficiency and repeatability.During operation,the sieve stack swings and rotates while receiving periodic vertical impacts.This dual movement helps fine particles pass through the sieve apertures more evenly,prevents material from staying in one position for too long,and reduces the effect of particle agglomeration.As a result,the test results become more stable and easier to compare between different batches.

　　Key Features

　　Dual motion system:Swinging and shock actions work together for uniform particle separation.

　　Standard sieve compatibility:Designed forφ200 mm laboratory test sieves commonly used in sand testing.

　　Timed screening cycle:A built-in timer allows each test to run for a preset duration,improving consistency.

　　Compact laboratory design:Suitable for small testing spaces such as foundry labs and research rooms.

　　Simple operation:Easy to install the sieve stack,set the time,and start the screening process.

　　Reliable structure:The motion mechanism is designed for repeated laboratory use and routine sand gradation testing.

　　Typical Applications

　　The SSZ Shock-Swing Sand Screening Machine is widely used for foundry sand testing,silica sand grading analysis,ceramic sand evaluation,construction sand laboratory inspection,and raw-material quality control.It is also suitable for teaching and research applications where consistent particle-size distribution data is required.

　　Representative Technical Parameters

　　The typical swinging frequency is about 230 times per minute,and the shock frequency is about 175 times per minute.The shock height or amplitude is usually within the range of 0–6 mm or 1–3 mm,depending on the specific model and manufacturer.The timer is commonly adjustable up to 15 minutes,and the motor power is around 370 W.The standard power supply is often AC 380 V/50 Hz,and the machine is compatible withφ200 mm test sieves.

　　Because specifications may vary between manufacturers,the exact voltage,amplitude,timer range,and sieve configuration should be confirmed with the supplier before purchase.

　　Why It Is Useful

　　In casting and sand-processing applications,sand gradation has a direct influence on permeability,strength,compaction behavior,and casting surface quality.The SSZ Shock-Swing Sand Screening Machine provides a controlled and repeatable method for evaluating sand particle-size distribution,making it a practical choice for laboratories that require reliable test data rather than high-capacity production screening.

　　Purchasing Note

　　When sourcing this machine,it is recommended to confirm the model version,motor voltage,timer range,compatible sieve set,spare parts availability,and after-sales support.For international buyers,checking whether the equipment can be adapted to local voltage standards is also important.