Jamna Auto is the largest manufacturer of tapered leaf springs and parabolic springs for commercial vehicles in India and is the number one supplier to Tata Motors (TML) and Ashok Leyland (ALL), the two major commercial vehicle manufacturers in Indian market for over 54 years.
The company is the largest spring manufacturer in the world with a capacity of 115,000 MTs per annum. It is the pioneer in bringing world class spring technology in India with its association with NHK Spring Company, Japan. In continuation to its commitment for higher technology, Jamna Auto has set up a state-of-the-art in-house (Research & Development) R&D centre at Malanpur, Madhya Pradesh.
Jamna Auto's 1200 workforce from various streams of specialization manages operations to the tune of Rs. 620 crore (approx. $115 Million). The company has a pan-India presence with its corporate office in New Delhi and four manufacturing facilities at Yamuna Nagar, Haryana, Malanpur, Madhya Pradesh, Chennai, Tamil Nadu and Jamshedpur, Jharkhand -- at the moment that has enabled it to retain 60% market share of Indian OEMs (Original Equipment Manufacturers). The company’s wholly-owned subsidiary -- Jai Suspension System -- has already begun commercial production and has been supplying springs to TML’s Pant Nagar (Uttaranchal) Plant. The manufacturing facilities are TS16949 certified.
1. Leaf Springs-
A leaf spring is a simple form of spring, commonly used for the suspension in wheeled vehicles. A leaf spring can be made from several leaves stacked on top of each other in layers.
A leaf spring can either be attached directly to the frame at both ends or attached directly at one end, usually the front, with the other end attached through a shackle, a short swinging arm. The shackle takes up the tendency of the leaf spring to elongate when compressed and thus makes for softer springiness. Leaf springs are mainly used in heavy commercial vehicles such as vans and trucks, SUVs, and railway carriages. For heavy vehicles, they have the advantage of spreading the load more widely over the vehicle's chassis.
• Multileaf Springs
Jamna Auto manufactures all kinds of multileaf springs being used in automobiles and special application vehicles. JAI uses the latest manufacturing technology available across the globe to achieve the highest Quality Standards.
• Parabolic Springs
JAI had been instrumental to introduce parabolic springs technology in India way back in 1988 for passenger cars and has now pioneered the same for commercial vehicles.
2. Suspension Products-
JAI has tied up with Ridewell Suspensions of USA to manufacture Air Suspension, Bogie Suspension and Lift Axles in India. Ridewell has more than 42 patents in its name for various suspension products, to speak about its leadership in the field.
• Rear Air Suspension - 'Cow Horn Style'
• Lift Axle - Steerable / Non Steerable
• Bogie Suspension - Tandem Axle
• Ford • Tata • Swaraj Mazda • Suzuki • Ashok Leyland • Toyota • Volvo • Eicher
Jai Suspension System