Hess – The Leader in Concrete Technology

Hess Group

Manoj Kumar
Hess Group, the global leader in Concrete Machinery has been putting the slogan 'we put concrete into shape' entered into India in 2009. During the interaction with Mr. Manoj Kumar, Managing Director of Hess India who gave the concrete answers to the questions raised by the NBM Media team. Within short period of time Hess has successfully installed and commissioned the plants for Ultratech, Ecologic, Jindal (JSPL), KJS Concrete and Kankaria Group. Further projects in progress with JK Lakshmi Cements, Lanvin Infra, Chelsea Concrete and UAL Industries. Other than this, the Hess company Schlosser installed the pipe plants for Bharat pipes, Unichem, BSR and RBBR together with GCI castings. Within this short period of time after entering into the Indian market, Hess identified the right partners and issues pertaining to India. Considering the market size and its potential, the company decided to address those challenges with the right solution. In this regard, Hess started offering complete solution on ash utilization. Hess system is able to avoid environmental and pollution issues, transportation, manual handling and maximum usage of ash in construction sector. In this way, the top and bottom ash can be transferred to Hess plant with a pneumatic closed conveyor system for conversion. After the process of batching, mixing and curing, the final products come out in bundles for storage and transportation. In a single day, Hess machines are able to convert around 400 tons of ash into building materials. This way, Hess could eliminate the ash related issues, saving agricultural land which are utilized for clay brick production. After proper studies, Hess started offering the concrete block and interlocking paver machines, light weight aerated concrete block machines, high pressure wet cast kerb and slab machines partially from India. The benefit to customer will be saving on import duty, freight cost, local parts and service other than the price. With a worldwide presence and an impressive range of products, Hess group emerged as the true concrete machinery expert and eager to share the knowledge in Indian market. With excellent safety features and easy spare parts availability, Hess machines stands in the top of concrete machines. A true testimony to Hess products could be seen in the rapidly expanding production facilities worldwide. The latest in this addition is the new facility which is going to open on 14th February 2013 in Bangalore.

Hess Concrete Technology

Construction is the backbone of every economy and building materials play a vital role. Different types of materials are used worldwide in the construction industry for centuries. Normally the main building materials used in the form of concrete blocks, clay bricks, fly ash bricks and AAC-Autoclaved Aerated Concrete and precast products.

The quality of such products ultimately reflects the value and life of the construction. Image of the buildings changed from the 'place of survival to place of show'. In this regard for special appearance, we are able to use different material finishes apart from the normal products. This has become necessary to use different colors and finishes for interlocking pavers, flag tiles, kerb stones and split stones in this modern world. Indian market is in an early stage to this industry comparing with other modern cities. Technology grown in a way to give the best quality together with beauty not only to single houses but to the cities as well as to the entire country. To support the economic growth of India as well as to create awareness in the market, Hess started participating in number of trade shows and seminars.

The Hess machine using the patented vibrating system called as the "variotronic" vibration system. The vibrating method based on servo/frequency controlled motors. The blocks produced by machines equipped with this patented technology are all uniform in size, shape and density. This high level of precision is the major advantage of this technology. The latest innovation is variotronic together with oil bath system will avoid regular greasing and bearing changes for longer periods which are time consuming acts.

Lets us go a little deeper into the technology behind this system. The vibration system is integrated with the filling program (the position and number of shakes for the filler box and the filler box agitators can be entered very easy). This ensures even and accurate filling of concrete into the moulds which will result in the production of high precision concrete products. Furthermore, the machines also have automatic height adjustment stops. The mould and tamper head vibration will automatically be stopped when the specified height is reached. This will avoid further compaction. The overall vibrations are drastically less because the motors are mounted on rubber buffers and equipped with special bearings. The flexibility that we have in adjusting the frequency and amplitude helps in quality output. The latest innovation in Hess technology is the oil bath vibration system. In this system, there is no need of bearing changes and the entire vibration system under warranty for 3 years.

Cocrete Blocks

The machine includes the main press and main mix hopper with filler box. The machine has fast mould changer, compact hydraulic power pack and modern visualization control system from Siemens. Mobile process visualization system like a remote control can be attached to check the settings from any point. For special requirements, magnetic plate stacking buffer system, split line, washing machine and grinding line can be added to the machine. The machines are provided with the most modern operating panel by Siemens with S7-400 to control the functions.

Flyash Bricks

Polystyrene Blocks
The Planetary mixers manufactured by Hess, under the brand name Schlosser Pfeiffer are specially designed for the semi-dry mix for the concrete industry. These mixers are the perfect choice for processing a wide range of different concrete types containing a large variety of aggregates, colour pigments, and materials of any kind. The mixing arms are height-adjustable. The level of precision used for fine-tuning and adjusting the tools translates directly into better mixing results, reduces wear and tear, and protects the drives from impact stress. The Schlosser mixers are designed with multiple discharge openings. A discharge accelerator is also available to reduce time up to 50%.

All the machines manufactured by Hess Group is benefitted by the excellent control and conveying systems which are upgradable at any point of time. Hess machines work with electric, electronic and software functions and comparatively less hydraulics than the competitors. This helps in fault detection and troubleshooting process easier and faster. Different types of conveyors are used for each application like belt conveyor, weigh batcher, skip system, bucket conveyor and latch conveyor to transfer the materials. All these operations are controlled and synchronized from a central system highly integrated with PLC. Recently, Hess commissioned the plant for Jindal Steel & Power Ltd (JSPL) next to the power plant. So the fly ash as well as bottom ash (pond) could transfer to the machine through a pneumatic conveying system. The advantage with this system is complete environment-friendly and avoiding the vehicle transportation, manual interference and pollution issues. There will not be any ash disposal and instead of that the bi-product will convert to building materials.

Concrete Block Machine

According to Mr. Manoj Kumar the mission to India will be challenging but definitely show the shapes and strength of concrete to this market. As a market leader and specialists, we are here to show the latest and innovative technology and not ready to compromise on quality. Hess is here to define the bench mark in this industry and the others will force to follow it. The growing reputation and expanding facilities show the aggressiveness of Hess in India. The priority should be on technology, not on price but Hess is delivering the German quality with Indian price, but of course this will not be competitive with China. Hess India will be a hub for the operations in Asia, Far East, Middle East and upto Africa where the Indian domination is there. In those regions, most of the administration and management is handled by Indians and this make big sense to support the operations from India. Apart from that 24/7 service will provide from India as the plant operators could easily interact with the local engineers for support and the language or time will not be a barrier in this case.

Hess is participating at bC India in German Pavillion in Hall 1 and Stand No. H 21 as we think this show is the biggest and prominent in India where we can showcase the best products and technology available in this industry. We believe in showing the products in actual as seeing is believing and are also very much sure to get favorable response and success from here.

Hess wants to be an active partner in building the nation and has already taken numerous steps to support the infrastructure development in the best way. We are helping to build the roads, bridges and housing within the stipulated time schedule. The other area which we focused at the moment is on power plants and ash utilization. Ash is the biggest issue as most of the power producers are facing and we are able to provide a total solution to this problem.

But at the same time we are also looking towards government support and wish that it would take some strong decision and implement the same in the coming years. The private sector is already a part of it and showing the interest but the government should direct the right ways and start supporting private sector to bring the latest technology. For the right technology, the people should get the benefit in the form of tax and others. Currently, the cheaper suppliers from our neighboring countries are benefitted and not the real technology players which needs to be changed.
NBM&CW February 2013
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