The Tata Hitachi ZAXIS 400 MTH is a 37-ton heavy hydraulic excavator for large-scale mining, hard rock quarry loading, and high-volume bulk earthmoving across India. It is powered by a turbocharged Isuzu AA-6HK1X water-cooled diesel engine rated at 247 HP and 2,000 rpm, providing consistent performance for continuous heavy-duty mining work. Weighing approximately 37,100 to 37,600 kg, it combines strong digging power and structural stability on rough quarry and mining terrain. It digs to a depth of 6,800 mm standard and up to 9,920 mm with a long arm, allowing for deep quarry cuts and large pit excavations across Indian mining conditions. Buckets ranging from 1. 3 to 2. 5 m³ fill quickly and empty efficiently, reducing loading cycle times on demanding mining tasks. The Mighty Track-Heavy Duty undercarriage with a reinforced track frame, rugged rollers, and heavy-duty chains is designed specifically for rough quarry and mining terrain. Advanced GI hydraulic components with dual variable-displacement pumps ensure efficient operation and fast cycle times. Wide inspection doors and easy maintenance access minimize service time.The Tata Hitachi ZAXIS 400 MTH excavator price in India ranges between Rs. 1.50–1.70 crore. A purpose-built machine for mining contractors and hard rock quarry operators needing MTH-grade undercarriage durability in a 37-ton crawler excavator.