Sidwal, a subsidiary of Amber Group, is a leading name in railway subsystems, HVAC, and precision cooling with over four decades of expertise. Recognized for engineering excellence and energy-efficient designs, we deliver reliable solutions across railways, metros, and defence mobility.
In 1991, Sidwal developed India’s first Roof-Mounted Modular Compact Air Conditioners for Rail Coaches. Since then, more than 35,000+ units have been supplied and approved by the RDSO, Ministry of Railways, serving trains such as Vande Bharat Express, Shatabdi Express, Rajdhani Express, and luxury coaches, including the Palace on Wheels and Maharaja Express.
In 2004, we expanded into metro rail with advanced HVAC systems. To date, more than 3,600 units have been deployed across metro projects in Delhi, Kolkata, Jaipur, Mumbai, Bangalore, and Chennai, ensuring consistent performance for millions of passengers.
Sidwal is your trusted partner for innovative, reliable, and certified HVAC solutions for transportation and different environments. The company offers comprehensive mechanical, electrical, and electronics expertise powered by multidisciplinary CAD, software, and testing teams. Sidwal ensures cutting-edge and dependable HVAC designs tailored to customer needs.
With in-house automatic psychrometric laboratories, Sidwal conducts precise performance testing up to 20TR (70kW) cooling and 35kW heating capacities, including complete ambient condition simulations. The company specializes in railway and metro HVAC systems ranging from 1.2 to 17.5TR (4–62kW), featuring durable stainless-steel and aluminum structures designed for demanding operational conditions.
Sidwal’s smart control architecture incorporates advanced microprocessor and PLC systems with MODBUS, Ethernet, and CAN network integration, delivering superior control and connectivity.
All products comply with leading global railway, safety, EMI, and software standards, including EN 45545 HL2/HL3, IEC 61373, ISO 9000, and IEEE 50128, demonstrating Sidwal’s unwavering commitment to quality and reliability.
To be the FIRST CHOICE of customers
To innovate and deliver advanced mobility solutions that enhance the efficiency, safety, and comfort of transportation systems worldwide. We are dedicated to sustainable practices, technological excellence, and providing superior quality products that cater to diverse mobility needs.
Values
Philosophy
Our strategically located facilities allow for quick turnarounds, efficient logistics, and close collaboration with clients.
Proven Innovators
Pioneering railway climate systems since 1991 – including India’s first roof-mounted AC for coaches.
Complete Quality Control
End-to-end in-house manufacturing ensures unmatched precision and reliability.
Tested to Perform
Every unit undergoes certified testing in controlled environments, approved by ISI and RDSO.
Customer-Centric Approach
Respect. Responsiveness. Results. We put relationships first.
Zero-Defect Focus
Built to meet the highest standards, with zero compromise.
Expert Team
Skilled professionals are driving innovation, quality, and trust at every step.
Our products are engineered for the real world – Every unit is tested in controlled climate chambers to ensure consistent performance, ruggedness, and longevity in the harshest conditions.
At Amber, we are committed to positively impacting society and the environment. Our CSR initiatives focus on education, healthcare, environmental sustainability, and community development. By investing in local communities and promoting ethical business practices, we strive to uplift the quality of life for all stakeholders. Our responsibility extends beyond our business operations, and we are dedicated to creating a sustainable future through meaningful contributions and partnerships.