Suitable for medium-to-deep blast hole drilling in open-pit operations such as mining, quarrying, railways, transportation, water conservancy, construction materials, and military engineering.
It also sees wide application in rock bolting, channel excavation, and drilling for sewerage projects, enabling high-efficiency rock drilling operations.

The KZH4A is an upgraded version based on the original 910F model developed by Kaizuan. It features optimized improvements to the control console, travel components, hydraulic system, feed beam, and rotary head, aiming to maximize the rig’s overall performance.

The travel system adopts plunger motors and heavy-duty crawler tracks, significantly extending the rig’s service life in movement.
A major advancement lies in the redesigned control console, which has been upgraded from a two-person operation to single-operator control, enhancing work efficiency while reducing labor costs — a thoughtful improvement designed with customer needs in mind.