All crushers are provided with soft starters and latest electronic controls, says V Venkataramana, Vice President, Puzzolana Machinery Fabricators. In an interview with Equipment India, Venkataramana speaks about the advanced safety features in corporate in the range of equipment.What is the demand-supply scenario of aggregates for different sectors? For the organised/planned projects of road construction, hydro projects and railway ballasts, it is well planned and both customers and manufacturers are/can gear up. Only in case of real estate and housing, most of these are under unorganised and by individual promoters, leading to shortage of plants and quality aggregates. Also, the projects being close to the cities are creating problems in terms of pollution of dust and noise.How has this growth in demand for aggregates influenced the OEMs? They have consolidated and made the size of plants bigger at the crushing zones. They have introduced pollution norms like water sprinklers, hoods on conveyors, etc. They have made safety norms mandatory.The use of optimum size equipment for energy conservation and productivity is on the rise. Trained manpower for plants through operation contracts is assured, so that customers gain maximum benefit. Stock points to reduce the breakdown hours and improve on availability of plants is another benefit.What is the market potential for crushers and screens? The market potential is approximately 10,000 million for various types of crushing and screening equipment. Puzzolana is the market leader in the construction and infrastructure sectors.What are the factors that have brought the shift in terms of capacity? The bigger size of projects increased aggregate requirements. Mechanised operations made restrictions in use of manual labour, economics in operation and maintenance. Better safety and pollution controls, and better material handling trucks, trippers, earth moving equipment are other factors.What is the market for stationary plants, and mobile/tracked plants? Stationary plants are almost nil except for process-based crushing in industries. Basically today there are three types - crawler, wheel mounted plants and skid mounted plants. Crawler crushers are used where the plant is required to move on a daily basis or in the mine sites at smaller quarries. Wheel-mounted plants are most commonly used for all infra structure projects where crushers need to be moved in 12-18 months duration; it needs about 20 days for dismantling and 15 days for re-erection and start. Skid plants are of complete steel supports with little permanent structures, mostly for commercial aggregate suppliers.What are the features incorporated in terms dust/noise suppression? Water sprinklers and dust hoods for dust suppression are the features; all our equipment have dust seals to avoid dust generation.Tell us about the features inbuilt for energy efficiency. It is about operation of equipment at full/optimum capacities so that cost per tonne of production is minimum. All crushers are provided with soft starters and latest electronic controls.What are the safety features inbuilt in the machines? All machine drives are provided with safety guards, over load and short circuit tripping. All major conveyors are with walka-ways and platforms with railings, for ease of maintenance.What are the services provided by Puzzolana? We offer training of operation personnel at sites and in our factory, offer parts guarantee contract, offer maintenance and parts contract, ultimately operation and maintenance contracts, and health check and refurbishment of old plants.What are the technological advancements incorporated? We have developed a new higher range of equipment, and all our equipment are continuously improved in terms quality and productivity.