GROUP OF COMPANIES

In green sand systems, clay is the key binder. Active clay hydrates with water to bond grains, giving strength, plasticity, and moldability, measured by the Methylene Blue Test. Dead clay, burned out by heat, loses bonding power, builds up as fines, reduces permeability, and raises defect risk. Balancing active and dead clay through testing and controlled additions is essential for stable sand properties and casting quality.

Sieve analysis results may vary due to sampling errors, moisture effects, operator technique, mesh blockage, electrostatics, or sieve wear. Each factor has a measurable scientific effect—ranging from sampling variance ( 𝜎 𝑠 2 = 𝐶 𝑑 3 / 𝑀 σ s 2 ​ =Cd 3 /M) to reduced open area or PSD shifts. Remedies include representative sampling, moisture control, SOPs, ultrasonic cleaning, and calibrated sieves. Versatile’s ASTM E11,ISO 3310-1 stainless steel monolithic sieves ensur

1. Introduction Sand casting remains a cornerstone of the metal casting industry, valued for its versatility in producing a wide range of...

Analytical sieves require careful cleaning, drying, and storage to ensure accuracy and long life. Routine brushing, ultrasonic cleaning for fine meshes, vertical storage, and calibration are essential. Versatile’s stainless steel monolithic sieves, ASTM E11 & ISO 3310-1 compliant, deliver durability, stability, and reliable results.

The brand new series of handheld mould and core hardness tester, which connects effortlessly to your smartphone via Bluetooth are a game...

Black Box, is an entire foundry laboratory in a box. The tests offered to be done with the Black Box include, Sieve analysis + Sieve...

Compactability is one of the most direct and practical measures of green sand performance. Unlike tests on fixed-geometry specimens, the squeezing method reflects how sand behaves under real moulding forces. This article explains the mathematical basis of online compactability measurement, the effect of density variability on moisture, permeability, and strength results, and most importantly, how these values should be interpreted to predict actual pouring outcomes.

Testing the compactability of green sand can be a serious business, but who says we can’t have a little fun while we’re at it? Here’s a...