J Ring Apparatus — Manufactured in India by Astra Scientific, exported to institutions across 45+ countries worldwide. Built to international quality standards with full export documentation & installation support.
- Custom-built training equipment for technical colleges & universities
- Worldwide export experience — ready for international tenders
- Installation, commissioning & training support available
- Comprehensive teaching manuals & lab worksheets included
Description & Specification for Lab Tenders
Detailed product overview for J Ring Apparatus — suitable for institutional purchases and international tender submissions.
Technical Specification
Complete technical data, dimensions, capacity and performance parameters for J Ring Apparatus.
The J-ring test can be used to determine the passing ability of self-consolidating concrete. It is applicable for laboratory use in testing different concrete mixtures for passing ability or can be used in the field as a quality control test. It is typical to also perform a slump flow test with the J-ring test. This test is similar to the J-ring except the J-ring is not used. The difference between the results of the two tests provides an indicator of the passing ability of the concrete.Designed for durability, J-ring set includes a slump cone, J-ring with smooth or rebar rods and steel base plate with engraved positioning rings.
The J-Ring test is used for determining the passing ability, the flow spread and the flow time of self compacting concrete as the concrete flows through the JRing apparatus. The J-Ring narrow gap with ø18 mm x 16 smooth bars is manufactured from stainless steel. The Slump Cone is made from sheet steel protected against corrosion, with diameters; top 100 mm, base 200 mm and with a height of 300 mm. The Base plate is 900x900x3 mm square, made of stainless steel with engraved circles of 200 mm and 500 mm diameter conforming to EN 12350- 8. The Steel weighted collar is used to stabilize the slump cone on J-Ring or slump flow tests. Minimum apparatus for the J-Ring test are J-Ring with narrow gap and slump cone.
Common Questions About J Ring Apparatus
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J Ring Apparatus — India-Based Manufacturer for Labs & Tenders
Astra Scientific is a leading manufacturer, exporter and supplier of J Ring Apparatus in India, serving Engineering Colleges, Polytechnic Institutes, TVET Colleges, Vocational Training Centres, Universities and Research Laboratories across Africa, Asia, the Middle East, Latin America and beyond. Our J Ring Apparatus is engineered to deliver hands-on, demonstrable learning outcomes for students — backed by detailed teaching manuals, lab worksheets and instructor guides.
Built with industrial-grade components and rigorously quality-checked, our J Ring Apparatus is supplied to international Concrete Testing Lab Equipment tenders — including Africa Tender Supply, World Bank funded TVET projects, ministry of education procurements, ADB grants and university capital equipment grants in Kenya, Tanzania, Uganda, Rwanda, Nigeria, Ghana, Ethiopia, Zambia, Zimbabwe, Botswana, Namibia, South Africa, Senegal, Cameroon, Cote d’Ivoire, Egypt, Morocco, Algeria, Tunisia, Sudan and many more nations.
Why choose Astra Scientific for J Ring Apparatus? — In-house engineering team, customisation to your curriculum, prompt international shipping, on-site installation & faculty training, comprehensive teaching manuals, and competitive export pricing. For bulk enquiries, tender support documents, technical datasheets or a custom quote on J Ring Apparatus, reach out to our export desk.
- Custom-built training equipment for technical colleges, polytechnics & universities
- Suitable for engineering, electronics, automotive, mechatronics & TVET curricula
- Backed by detailed teaching manuals and lab worksheets
- Worldwide export experience — ready for international tenders
- Installation, commissioning & training support available
