PERIWALL Mining

We produce mostly black granite which are in high demand and suitable for commercial complexes, offices, residential buildings and other architectural purposes. Available in slabs and tiles, our granite is of gorgeous black colour with specks of white. They contain heavy gloss mirror polish and stunning textural patterns.

Sri Venkatesh Infra Nirman

SRI VENKATESH INFRA NIRMAN PRIVATE LIMITED was started with a vision of serving the domestic and international markets by supplying high grade exotic natural stones from India at competitive and fair prices.

We strive for quality and reliability by mining, finishing and marketing high grade stone blocks and slabs – both nationally and internationally,

The organization currently boasts a sprawling Granite mine of 19 hectares in Uddavolu village in Therlam Mandal in Vizianagaram district of Andhra Pradesh. Uddavolu is located 57 km towards the north from the district headquarters at Vizianagaram and 650 km from the state capital at Hyderabad. The mine is classified as one of the biggest Granite mines in India.

Plants & Equipment

Quarry

Cranes for lifting big blocks
Drill hammers
Excavators
Dump trucks for transport
Compressors
Block cutter

Processing Unit

Normal gang saw
Jumbo gang saw
Circular block saw
Diamond tipped wire saw
9 head auto line polishing
Calibration machine
Chamfering machine
Edge cutting machines
Automatic edge grinding & polishing

Production Process

Granite mining is a strenuous process. Isolating a block of stone, weighing approximately 10,000 kg (or more) from the earth, and turning it into the final polished, sparkling slab or tile requires the following steps to be completed.

1 Quarrying

Each quarry presents a unique challenge for the isolation and extraction of blocks. It is the quarry manager’s job to visualize how the veining and coloration of granite “flows” within the quarry and thus formulate a plan to isolate the right blocks. Due to its structure, mining for granite is done manually and not by blasting – as the latter process can shatter the granite. Two basic methods are employed for this purpose – Drilling and Jet Piercing. We employ the former process in which vertical holes are drilled about one inch apart till the desired depth (up to 20 feet), and the granite remaining between the holes is later removed by secondary drilling.

2 Cutting / Sawing

After removal from the quarry, the granite blocks are transported to the processing facility, where they are cut into slabs of varying widths by modern diamond wire saws – saws with industrial grade diamond tips. A bridge saw is then employed to cut the stone slabs into the proper shape for its application, whether it be a counter-top or a sink. These saws typically use circular metal blades studded with diamonds, and water is sprayed onto the blade to cool it during the cutting process.

3 Dressing

Once a block of granite has been broken down to the appropriate sizes needed, the sides have to be roughly smoothed off before polishing can begin. This is known as Stone Dressing. Rough dressing was done with a blocking hammer or a dressing pick, with puncheons and chisels for finer work. A more efficient dressing tool was the bush hammer, or patent axe. Dressing of stone produces a roughly flat but uneven surface.

4 Polishing / Surface Grinding

Granite slabs are polished by special automatic machines that use large metal discs or abrasive bricks made from silicon carbide, with water as lubricant. The polishing line contains polishing heads which begin with very coarse diamond abrasives, and then move to finer and finer grit abrasives. Part of the way through this line, the granite slabs receive a coating of a resin treatment which will fill in any pits or micro fissures which are inherent to the stone in order to make the final surface easier to clean. Most of the excess resin is removed by further polishing, with only 1% remaining on the finished surface. High gloss (90 to 100+) is achieved and then these slabs are passed on for inspection to remove patches, cracks and other abnormalities.

5 Edge Cutting / Trimming

Edge Cutting and Trimming of the final polished granite slabs is carried out by compressed air drills with tungsten tipped chisels in the finishing area. It is here that a stonemason will check all pieces and carry out hand finishing using water fed hand tools to ensure the products are polished and finished to the highest standard.

6 Packaging

After being checked for quality, tiles are packed into boxes and tightly fit into wooden crates for further transportation. Slabs are bundled together and braced with a wooden framework, custom built to ensure that they stay upright during the shipping process.

Marketing & Distribution

We produce granite slabs and blocks of various sizes depending upon the requirement of our esteemed clientele.
Our products are free of visible cracks, are well polished (apart from the blocks) and feature prominent variations.
We have been supplying granite blocks to the Chinese market for quite some time now with a lot of accolade. In this fiscal year, we have started exporting to Europe and are eyeing the Middle Eastern market in the upcoming year.
Locally, we supply granite slabs to the Indian states of Bangalore and Hyderabad.

Stone Crusher Mine

Another venture in the mining sector by Sri Venkatesh Infra Nirman is a stone crusher mine producing stone chips.

With a production capacity of 200 Metrics Tons per hour, this crusher mine is equipped with modern technology, latest crusher machine and adequate transport facilities.

Situated at Bagodar, Village – Beko, District – Giridih, in the state of Jharkhand. The major supply of this mine’s production is done in the states of Jharkhand and Bihar.

Find Us

Sri Venkatesh Infra Nirman
SY No.21, Uddavolu Village,
Therlam Mandal,
District: Vizianagram, AP, India

Working Hours

Mon to Fri : 10:30 AM – 7:30 pm
Sat : 10:30 AM – 5:30 pm
Sun : We are Closed

Contact Us

Phone : +91 8500962462
Email : mining@periwall.com