L-Box Apparatus Manufacturer,Supplier and Exporter in India

L-Box Apparatus (Product Code: SLE/CE/16) is an L-shaped test box used to measure the passing ability of freshly mixed self-compacting concrete in civil engineering and concrete technology laboratories. Colleges, research labs and site quality teams use it to see whether an SCC mix can flow through a screen of 12 mm diameter bars set 41 ± 1 mm or 59 ± 1 mm apart. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer of engineering lab equipment in India, at its own factory in Ambala.

Specifications

What Is the L-Box Used For?

The L-box test shows whether self-compacting concrete will pass between closely spaced reinforcement without blocking or separating. The fresh sample is placed in the vertical section; once released, it flows through the bar screen and along the horizontal section, and the concrete heights at the two ends of that horizontal run are compared to express passing ability.

The 41 mm gap imitates more congested reinforcement and is the more demanding setting, while the 59 mm gap suits less congested sections, so set the spacing your mix design or test method calls for. Stand the box on a firm, level surface and wash both hoppers straight after each test so hardened paste does not affect the next result. It is a core item of engineering educational equipment in India for SCC mix trials and final-year project work.

OEM Manufacturer

ScienceLab is the trading name of Jain Scientific Equipments Private Limited, and the company is the OEM (original equipment manufacturer) of this L-Box Apparatus. The box is made and assembled at its own licensed factory at Saha, Ambala, Haryana, India, rather than bought in from a trader. Engineering colleges, polytechnics, research laboratories, dealers and importers therefore deal directly with the maker for supply, repeat orders and replacement parts — just ask us. Read more on the ScienceLab company profile.

Related Civil Engineering Lab Equipment

Self-compacting concrete is normally judged with several fresh-concrete tests, so these items from the same range are often ordered with the L-box for a complete SCC test bench.

• J Ring Apparatus — a second passing-ability check that works together with the slump-flow test.
• V Funnel Test Apparatus — times the flow of the same SCC batch.
• U Shape Box Apparatus — an alternative box test for SCC.
• Fill Box Apparatus — checks how well the mix fills a container under its own weight.
• Slump Test Apparatus — for routine workability checks on fresh concrete.

Browse the full Civil Engineering Lab Equipment range for concrete, cement, soil and aggregate testing.

Frequently Asked Questions

What does the L-Box Apparatus measure?
The L-Box Apparatus measures the passing ability of freshly mixed self-compacting concrete: how well the mix flows through a screen of 12 mm diameter bars into the horizontal section without blocking, which tells a lab whether the SCC will pass congested reinforcement.

What bar spacing can be set on the L-Box Apparatus?
The distance between the 12 mm diameter bars of the L-Box Apparatus can be set at 41 ± 1 mm or 59 ± 1 mm. The narrower gap gives the more severe passing test; the wider gap suits concrete meant for less congested reinforcement.

What is supplied with the L-Box Apparatus?
The L-Box Apparatus is supplied complete with its filling hopper and base, and its vertical and horizontal hoppers are designed for ease of cleaning. If you also need other SCC test apparatus, list it in the same enquiry so everything is quoted together.

Who manufactures the L-Box Apparatus?
The L-Box Apparatus is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab) as the OEM, at the company's own licensed factory at Saha, Ambala, Haryana, India. Quotations, repeat supply and replacement-part enquiries are handled directly by the manufacturer.

How should the L-Box Apparatus be cleaned after a test?
Clean the L-Box Apparatus immediately after each test, before the cement paste starts to set. Its vertical and horizontal hoppers are designed for ease of cleaning, so washing the hoppers and bar screen with water and a soft brush keeps later readings dependable.

What should a quotation request for the L-Box Apparatus include?
A quotation request for the L-Box Apparatus should state the product code SLE/CE/16, the quantity, the delivery location and any other self-compacting concrete test apparatus you need. Send it through the contact page or the enquiry cart for a reply from the manufacturer.

Does ScienceLab supply the L-Box Apparatus for export?
Yes. ScienceLab supplies the L-Box Apparatus to laboratories, institutions, dealers and importers in India and international markets. For bulk or export orders, share the quantity and destination country in your enquiry so the quotation can cover delivery.

Request a Quote

To order the L-Box Apparatus (SLE/CE/16), send your requirement through the contact page or add it to the enquiry cart. Quotations come straight from the manufacturer, Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala.

Last updated: 24 September 2026