Mortar Cube Vibrating Machine Manufacturer,Supplier and Exporter in India
Product Code : EL-CACTE-9465
Jlab Export is a leading Mortar Cube Vibrating Machine Manufacturer,and suppliers in India
Cement mortar cubes for strength tests are compacted by vibration, so each cube is packed in the same way. This machine vibrates the mould at 12,000 ± 400 cycles per minute, driven by a revolving eccentric shaft. The vibrator rests on four coiled springs. Its centre of gravity, with the mould in place, lies at the shaft centre or within 25 mm below it.
Specifications
| Vibration frequency | 12,000 ± 400 cycles per minute |
| Drive | Revolving eccentric shaft |
| Mounting | Four coiled springs |
| Centre of gravity | At the eccentric shaft centre or within 25 mm below it, with the cube mould |
| Cube mould | Quick to fit and remove |
| Minimum order quantity | 1 unit |
| Dispatch time | Usually 14–18 working days |
| Manufacturer | JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India |
Cement Mortar Cube Practicals
In a cement strength practical, students prepare mortar of cement and standard sand in the Cement Mortar Mixer. They fix an oiled mould from the Cube Moulds on the machine, fill it with mortar and run the vibrator for the set time. The filled mould is then lifted off the machine, and the cube is demoulded the next day.
The cubes are cured in water and crushed on the Compression Testing Machine at 3, 7 and 28 days. Compressive strength is the failure load divided by the area of the loaded face, in N/mm², which is the same as MPa. Comparing vibrated cubes with hand-rammed ones shows how much compaction changes the result.
Frequently Asked Questions
Why are mortar cubes compacted by vibration?
Hand tamping varies from person to person, and air left in the mortar lowers the strength. A fixed frequency for a fixed time compacts every cube the same way, so differences in results come from the cement and not from the casting.
What frequency does the machine run at?
It vibrates at 12,000 ± 400 cycles per minute. The motion comes from a revolving eccentric shaft, and the coiled springs let the vibrator move freely while keeping most of the vibration out of the bench.
Why does the centre of gravity matter?
The centre of gravity of the vibrator with its mould lies at the eccentric shaft centre or within 25 mm below it. Keeping it there makes the mould vibrate evenly instead of rocking, so all parts of the cube get the same compaction.
How does it differ from a jolting apparatus?
This machine compacts cubes by fast, continuous vibration from an eccentric shaft. The Jolting Apparatus compacts mortar prisms by lifting a table on a cam and dropping it, one jolt at a time, for a set count.
Other Cube Compaction Equipment
- Vibrating Machine (supplied with a 70.6 mm cube mould)
- Vibrating Table (for concrete cubes)
- Concrete Vibrator (poker needles)
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Last updated: 5 November 2026
