QUY50A hydraulic crawler crane is a kind of full hydraulic, multiple purpose, crawler mounted crane designed and manufactured with advanced technology. It can be used widely in various fields, such as building construction, transportation, sea ports, and power plant to accomplish lifting, mounting and material handling.

Features:
1. Small ground pressure makes the machine travel and work on the sand-land and field. Small slewing radius makes it suitable for narrow working area.
2. Load moment limiter provides working parameters for the driver to ensure safe operation.
3. Hook over-hoist limit device and boom backstops are mounted. The brakes are used for lifting, derricking and slewing operation to ensure safe operation.
4. Hydraulic system is total power variable displacement with load feedback. Pilot proportional control is applied in the control system. It can realize the characteristics of fine speed, smooth movement and high precision.
5. Band-type brake and band-type clutch applied in hoisting system realize the function of free fall. High efficiency and energy-saving are features to the machine.
6. Slewing cushion device is applied for smooth operation.
7. The beautiful and comfortable cab provides the driver for a good working environment. Pilot control applied on the machine realizes flexible, easy and smooth operation. Air-conditioner attached in the cab makes the driver work at a suitable temperature.