Previously, the Indian concrete equipment sector was highly fragmented, with many proprietary concerns in the unorganized sector. However, with the entry of organized players / MNCs like SSIPL, the sector has seen a lot of streamlining and development. As an equipment manufacturer, SCHWING Stetter India has always been a frontrunner in extending vital support to India’s infrastructure sector. The company manufactures the entire range of concreting equipments like batching plants for concrete preparation, transit mixers for concrete transportation, concrete pumps for concrete placement, shotcreting plants and recycling plants for recycling of concrete. The equipments manufactured are complimentary to each other.
SCHWING Stetter always try to understand the needs of the customers properly and they offer products and solutions matching their requirements. SCHWING Stetter is known world over, for introducing technological innovations and adding value in the products.
- Stetter Batching Plants, ranging from 18 to 240 M3/hr capacity, including M2 mobile batching plant with 94 M3/hr capacity for concrete preparation
- Stetter Transit Mixers with 4M3, 6M3, 8M3, & 10M3 capacities for concrete transportation
- Schwing Concrete Pumps (Trailer, Line and Truck Mounted) ranging from 30M3 to 120M3 for placing the concrete. It also has the SP 1400, the fourth category of pumps to join SCHWING Stetter’s range of concrete pumps in India.
- Specialized equipment like Spraycon 20.7 (a shotcreting machine will be extremely useful for hydropower and tunnel projects), concrete recycling plants (which work to recycle waste concrete from project sites) and the F12 belt conveyor (a useful addition to a truck mixer, which can be attached to any Schwing Stetter truck mixer).
SCHWING Stetter GmbH has adopted the theme go green, which is being reflected in all its initiatives. As a market leader, the company has assumed the responsibility to adopt certain practices that will work to create a healthier and sustainable environment. Keeping this in view, the company has incorporated certain green features to its products. The motto go green has a challenging undertone, intended to motivate people, both inside and outside the company to get involved. SCHWING GmBH has taken considerable measures to reduce CO2 emissions by 100 tonnes annually, for instance. It is known to offer products that are extremely energy-efficient, thereby resulting in lesser fuel consumption. This implies that the go green initiative is also supported and practiced by its customers, combined with the pleasant effect of saving operating costs and expenses due to wear and tear.
Bandra-Worli Sealink ProjectThe Bandra-Worli Sealink Project was successfully executed by HCC. However, they faced a major challenge in pumping the concrete for this project. When HCC started the project, they had the responsibility of pumping 95,000 cubic metre concrete out of a total concrete of 2,25,000, which is of highest grade (M60). Since the concrete had to be pumped into the sea, it had to withstand severe corrosion by sea water, and also withstand challenges of nature temperature difference, high tide, cyclone, etc. The concrete specified had a particular design, which included micro silica. Besides, a huge volume of concrete had to be pumped in one go. The concrete-setting time had to be delayed to ensure that there was no cold joint in the concrete. The project authority and the consultant had suggested sikka 1 and super plasticizer - BASF admixture for retarding the setting time.
In March / April, 2003, HCC faced considerable difficulty in pumping the concrete, at a distance of 174 metres, horizontally. At that point of time, they used SCHWING’s BP 1800 Concrete Pump Model to execute this task. When they started doint it, the pumping was too slow and SSIPL suggested that the concrete specification be checked and modified for pumpability. SSIPL arranged the visit of Mr. Karl Ernst V. Eckardstein, the author of the internationally renowned book, Pumping Concrete, and Mr. Andreas Godowski, the practical pumping engineer, to come to the project site. They interacted with Mr. Robert Allen and others and explained to the customer, how certain changes could be made to the product specifications resulting in concrete pumpability, without affecting the strength of the concrete itself. The customer discussed this suggestion with THAR, a UK-based consultancy firm who were involved in the project, and SCHWING’s suggestion was accepted. Once the decision was made, in May 2003, a BP 1800 concrete pump, with a pipeline of 175 metres was laid and concrete pumping began there and than. The resulting smooth pumping proved that concrete pumpability had been the issue, thereby reinforcing SCHWING’s original reading of the situation. The customer was able to comprehend the situation in its entirety and went on to purchase another 5 BP 1800 concrete pumps from SCHWING and began the concreting process very comfortably for the project.
The next challenge confronted when the customer initiated a vertical pumping operation on Pier 19, which had a horizontal distance of more than 300 metres and a height of 132 metres. This was successfully overcome when SCHWING’s concrete pump model, BP 3500 was deployed with the aid of a separate placing boom model, DVMK 42.