Industry Value Chain
The shipping industry is an integral part of the transportation sector and the overall supply chain. Shipping moves goods across geolocations promptly, driving the economy toward a progressive path. The volume of cargo that ships carry is huge compared to other transportation modes, offering crucial economic advantages. According to the Ministry of Shipping, around 95% of India's trading by volume and 70% by value is done through maritime transport using 12 major and 205 notified minor and intermediate ports.
However, moving large volumes of goods across increasing longer distances through challenging oceanic paths means that the ships need to withstand continuous stresses, pressures and damage.
The shipping industry has established a practice of life-cycle structural integrity management that focuses on design by considering expected loads, structural failures (yielding, buckling and fatigue), and corrosion addition.
To support such needs of the industry, the shipyards are in constant need of robust, precise metal-forming solutions that can handle heavy loads and deliver accurate control over the forming process.
Himalaya's range of metal forming machines has been a first-choice of shipyards around India for 40+ years. We have closely understood the needs of the industry and have developed advanced design and engineering capabilities at our expansive manufacturing facilities that enable us to deliver efficient and precise solutions to the shipping industry.
Our plate bending machines for ship building are mainly applied in the production of hulls of the ship which is often in circular arc shape. Based on the clients’ requirements, our machines can design either symmetrical or asymmetrical patterns.
Himalaya machines have a robust steel structure made from heavy metal plates, connected to each other by a strong box design chassis with interlocking frames & strengthening ribs. These allow for parallelism of all axes and precise surfaces, as well as longevity and precision.
We design the rolls with optimal diameter and use forged carbon steel rolls machined by high precision CNC lathes. Our rolls have a special spline-based design that is extremely efficient in connecting the rolls with the planetary gear system. Our rolls are also crowned to compensate for roll deflection during the bending process.
Our machines are equipped with a hydraulic system which can work at less than full capacity when jobs less than maximum thickness are rolled. Twin speed operation also reduces the energy consumption up to 50% at slower speeds.
Himalaya Planetary driving system used in our machines is efficient and eliminates energy wastage associated with heavy-transmission systems and yet achieves the goal of speed reduction by increasing the stages in gears and pinions.
The simple yet robust design of our machines also enables ease of operations and faster manufacturing. And our full package of accessories provides quick movement of rolled plates for rolling, welding, and subsequent manufacturing activities. The high construction quality of our machines means that they can work 24 hours a day and are highly reliable with minimum downtime.
The HIMALAYA Advantage
What is done to compensate for deflection of rolls during pre-bending and rolling?All rolls are crowned (cambering) for compensating deflection.
What is the arrangement provided for balancing of top roll when swing arm is opened?Top roll is counter balanced automatically once the drop end is opened without any jacks or manual arrangement.
Is there any method to know the position of bottom rolls?DRO (Digital Readout) is housed on the operating console which gives the position of the bottom rolls with respect to the top roll.
What is the capacity for cone bending?Cones can be bent up to the edge-bending capacity of the machine. The bottom rolls can be inclined for the required cone angle.
What is the level of protection for electrical components?Some of the electrical bough outs are IP 55 like motors, switchgears etc. The electrical cabinet will be manufactured as per our standard practices and will meet IP 55 protection.
Is the main drive reversible?Forward and reverse to the main drive is provided. The bottom rolls can be moved up and down individually.
What is the type of oil required?Hydraulic oil – Enklo 68 Planetary Gear box – EP 90
Where are the main machine controls?Operating console houses push buttons for all the operations of the machine. The console is movable so that the operator can keep it at any desired location.
Can we bend hot plates on the machine to get higher thickness capacity?Although the standard machine is not meant for hot rolling, occasional hot rolling can be done (a few jobs per month) provided that suitable precautions are taken.
Some plates have high yield point (YP). The rolling capacities are rated for 26Kg/mm2. How to find the equivalent thickness?Divide the Actual YP by 26. Find square root of this number. Multiply this value by actual plate thickness to get effective thickness.
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