Sample Splitters (Riffle Boxes)
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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. They suit materials, highway and soil laboratories. Riffle boxes can be ordered from Science Lab Supplies in Ambala, India by institutions, tender contractors and distributors.
Specifications
The riffle box specification is broken into single-fact rows. In short, each splitter is a set of equal-width chutes that open alternately to the left and right and discharge into two collecting pans, offered in painted steel or stainless steel to match the materials and cleaning routine of the laboratory.
| Specification | Value |
|---|---|
| SKU | LSK-CL-10593 |
| Also known as | Riffle box, riffle sample splitter |
| Function | Precise division of a sample into two representative portions |
| Construction options | Painted steel or stainless steel |
| Collecting pans | 2, supplied with the splitter |
| Suitable materials | Aggregates, gravel, sand and similar materials |
| Supplied by | Science Lab Supplies, Ambala, India |
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 before density testing on the Coarse Aggregate Density Test Set.
- Diploma civil engineering: preparing sand portions for the Organic Impurities Test Set.
- 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, together with any extra collecting pans you request.
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, so sample reduction and testing are priced together.
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. State the finish you prefer on the contact page, or collect riffle boxes and follow-on test sets in the enquiry cart; formal bids are explained on 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 so that a large field sample can be reduced to test size without bias.
Which finishes are available?
The splitters are available in painted steel or stainless steel. State your preference in the enquiry, and the chosen construction will be named on the quotation along with the packing, delivery time and price.
Are collecting pans included?
Yes. Every splitter comes with two collecting pans, one for each side of the chutes, so both halves of the divided sample are caught and either can be split again.
Who supplies these riffle boxes?
Science Lab Supplies supplies the riffle boxes from Ambala, India, and its quotations go to colleges, testing laboratories and training institutes as well as to tender contractors and distributors.
Related Aggregate and Soil Sampling Equipment
A split sample usually goes straight on to density, specific gravity, abrasion or grading work. These items from the Concrete Laboratory and Soil Mechanics ranges cover the tests and drying that follow sample reduction, so they can be quoted with the riffle boxes.
- Dunagan Test Set — specific gravity and absorption of fine and coarse aggregates in one kit.
- Los Angeles Abrasion Machine — abrasion resistance of coarse aggregates in a 508 mm long rolled steel drum.
- Bulk Density Kit — five brass cylinders of 60, 30 and 10 mm length for known-volume soil samples.
- Drying Oven — for drying large quantities of aggregate and soil samples, with 3 shelves in 4 positions.
- Particle Size Analysis Test Set — 700-watt immersion heater in a stainless steel mixing chamber, holding 8 hydrometer jars.
- Grain Size Chart — precision-sieved sedimentary particles mounted in recessed die-cut cavities.
- Sand Gauge Chart — particle shape panels from angular to rounded, with a checklist for field notes.
Browse the full Concrete Laboratory range, the Soil Mechanics range for grading and sampling apparatus, or all TVET lab equipment.
Last updated: 9 October 2026
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