Gilmore Needle Apparatus Manufacturer,Supplier and Exporter in India
Product Code : EL-CACTE-9455
Jlab Export is a leading Gilmore Needle Apparatus Manufacturer,and suppliers in India
Gilmore needles show when a cement paste begins to set and when it has fully set. A stand with a vertical shaft carries two horizontal arms, one for each needle, and the lower arm adjusts for height. The initial needle is 1/12 in across and the final needle 1/24 in, and a glass base plate holds the pat.
Specifications
| Stand | Base with vertical shaft and two horizontal arms |
| Lower arm | Adjustable for height |
| Initial needle | 1/12 in dia, 1/4 lb |
| Final needle | 1/24 in dia |
| Base plate | Glass |
| Test | Time of setting of hydraulic cement |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 4–6 working days |
| Manufacturer | JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India |
Setting Time Practicals for Cement
Students first make a paste of normal consistency, finding the right water content with the plunger of the Vicat Apparatus. They gauge the paste with a Standard Spatula, shape a pat with a flat top on the glass plate and note the time the water went in. The pat is kept in moist air between readings.
At intervals they lower the initial needle gently onto the pat. Initial set is reached when it no longer leaves a clear mark, and final set when the final needle rests on the paste without marking it. Testing the same cement on the Vicat apparatus lets the class compare the two methods. Repeating the test with warm and cool mixing water shows how temperature speeds up or slows down setting.
Frequently Asked Questions
What is the difference between initial and final setting time?
Initial set is when the paste starts to stiffen and lose its plasticity, so it can no longer be placed and worked well. Final set is when it has hardened enough to carry the fine final needle without taking a mark.
How does the Gilmore test differ from the Vicat test?
Both judge setting by needle penetration. The Vicat apparatus lowers a loaded needle into paste held in a mould and reads the depth on a scale. Gilmore needles rest on the surface of a pat, and the test asks only whether they leave a mark, so the two methods give different times.
Why are the two needles different sizes?
The initial needle is 1/12 in across and the final needle 1/24 in. A finer tip puts more pressure on the paste, so the final needle needs a harder paste before it stops marking the surface.
How do I keep the readings consistent?
Lower each needle vertically and let it rest on the pat under its own weight without pressing. Use a fresh spot each time, away from earlier marks and the edge, and keep the pat in moist air between readings.
What is the glass base plate for?
The pat is formed on it. Glass is flat and does not soak up water, so the paste keeps its moisture. The pat can also be moved under the needles without being disturbed.
Other Cement Paste Test Apparatus
- Le Chatelier Mould
- Brass Ring Mould Pat Test (soundness of hydrated lime and gypsum plasters)
- Cement Sampler
For a quote, use Add To Cart or send us a message through the contact page.
Last updated: 5 November 2026
