Hitachi Upgrades Zaxis-7 Medium, Large Excavators

Models ZX250LC-7, ZX300LC-7, ZX350LC-7, ZX490LC-7, ZX690LC-7 and ZX890LC-7 Hitachi excavators have been updated to Dash 7. The medium and large Zaxis-7 excavators range in operating weight from 60,407 to 188,936 pounds.

The new Hitachi Construction Machinery Americas excavators fill out its Zaxis-7 lineup.

The redesigned cab is larger with less vibration and noise. It features increased head clearance and leg room with a one-touch adjustable air suspension seat synchronized to move with the console for simplified adjustments. This console features an ergonomic layout with intuitive controls for operator convenience and enhanced visibility on the right side of the cab.

A thicker rear glass minimizes noise, and a seal has been added between the cab and floor plate to improve the airtightness of the cab. Four fluid-filled elastic cab mounts reduce vibration when traveling.

Aerial Angle peripheral vision camera system provides five different camera views from inside the cab on an 8-inch anti-glare LCD monitor, including a wide 270-degree bird’s-eye view of the machine’s immediate environment. The operator can select a view on the monitor that best suits the situation. A rearview camera allows the operator to see the area right below the counterweight.

The multifunctional monitor indicates preset maintenance intervals each time the key is turned on. Engine oil and coolant levels can be checked from the operator’s seat.

Design upgrades include heavy-duty boom and stick configurations, and strengthened undercarriage components, such as idlers, rollers, and improved seals. An anti-mud-compaction lower roller design helps prevent mud from entering and damaging the oil seals. The upper and lower rollers also feature improved idler sealing. A track undercover protects the joint from potential damage.

Other design enhancements include an inner element of the engine air filter to protect the engine from dust ingress while cleaning the outer element. The air conditioner is also protected with a sealed internal filter that prevents intrusion of dust.