The CAT 320D3 Excavator is a 20-ton hydraulic excavator designed for road construction, heavy site work, and continuous earthmoving on Indian project sites. It utilizes an Ashok Leyland ALUW06DTI engine that produces 134 HP at 1,700 rpm. This model does not have an ECM for simpler operation and better uptime. Weighing around 19,800 kg, it provides strong digging output in varying soil and rock conditions. The maximum digging depth of 5,970 mm meets most medium to heavy construction excavation needs. A bucket capacity of 0.92 m³ moves material efficiently with each pass. Electronic tandem pumps deliver 7% more flow efficiency than earlier models. Boom and stick regeneration circuits lower fuel use by up to 2% while enhancing cycle times. Economy mode reduces fuel consumption by up to 20% without sacrificing lift or digging force. A one-touch low idle function quickly adjusts engine speed to 1,000 rpm during breaks. Average fuel consumption runs between 11 and 13 litres per hour. The 350-litre tank allows for extended working hours with fewer stops. The CAT excavator 320 price in India ranges from Rs. 74 to 80 lakh. This is a high-value option for contractors and infrastructure companies looking for low maintenance costs and strong daily output across India.