Sample Splitters (Riffle Boxes)

Product Code : LSK-CL-10593

Sample Splitters (Riffle Boxes) (SKU LSK-CL-10593) divide a bulk sample of aggregate, gravel, sand or similar loose material into two representative portions. Pouring the material across the row of alternating chutes sends half to each side, so a large field sample can be reduced to test size without bias. Materials, highway and soil labs rely on them. Science Lab Supplies supplies riffle boxes from Ambala, India to institutions, tender contractors and distributors.

Specifications

Each riffle box is a set of equal-width chutes that open alternately to the left and right, discharging into two collecting pans. The splitters are offered in painted steel or stainless steel, so a laboratory can match the finish to the materials it handles and its cleaning routine.

Applications and Experiments for the Sample Splitters (Riffle Boxes)

Riffle boxes are used to reduce a field sample to the quantity needed for a sieve analysis, density or other test while keeping the grading of the original. They are a routine first step in aggregate testing in civil engineering labs and are standard workshop tools for technical training institutes teaching materials testing.

• B.Tech / B.E. civil engineering: reducing aggregate samples before sieve analysis.
• Diploma civil engineering: sample preparation in the building-materials lab.
• Highway and soil laboratories: splitting gravel and sand for repeat tests.
• TVET materials-testing courses: correct sample reduction technique.

For a fair split the material is spread evenly along the full width of the chutes and poured steadily; one pan is kept and the other set aside or split again until the required quantity remains.

Standard Scope of Supply

Each splitter is supplied with two collecting pans, in the painted or stainless steel finish you specify. The Sample Splitters (Riffle Boxes) are otherwise supplied as described above; any optional accessories are listed on the quotation.

Packing, MOQ and Lead Time

Quotations are prepared for one riffle box or a laboratory set, in either finish, and each states the packing, delivery time and price for the quantity requested. Aggregate density and fine-aggregate test sets can join the same quotation.

With its Importer-Exporter Code, Science Lab Supplies is a registered exporter that can ship to buyers in Bangladesh, Zambia, Rwanda, South Africa, Qatar and Sri Lanka. Enquire via the contact page, compile a list in the enquiry cart, or check the lab tender page.

Frequently Asked Questions

What materials can be split?
The riffle boxes are made for aggregates, gravel, sand and similar granular materials, dividing each sample into two representative portions.

Which finishes are available?
The splitters are available in painted steel or stainless steel. State your preference in the enquiry and it will appear on the quotation.

Are collecting pans included?
Yes. Every splitter comes with two collecting pans, one for each side of the chutes.

Who supplies these riffle boxes?
They are supplied by Science Lab Supplies from Ambala, India, with quotations sent to colleges, testing laboratories, training institutes, tender contractors and distributors.

Related Aggregate Testing Equipment

A split sample usually goes straight on to density, specific gravity or impurity testing. These items from the Concrete Laboratory range are the tests that most often follow sample reduction.

• Coarse Aggregate Density Test Set — density of the reduced coarse sample.
• Dunagan Test Set — specific gravity, absorption and silt.
• Organic Impurities Test Set — organic matter in fine aggregate.
• Los Angeles Abrasion Machine — abrasion resistance of coarse aggregate.

Browse the full Concrete Laboratory range or all TVET lab equipment.

Last updated: 25 September 2026