Work machine

A work machine comprising:

• a vehicle body;
• a working device rotatably attached to the vehicle body;
• a hydraulic cylinder for driving the working device;
• an operating device for operating the working device;
• a hydraulic pump;
• a flow control valve for controlling a flow rate of a hydraulic oil supplied from the hydraulic pump to the hydraulic cylinder;
• a solenoid valve for generating an operating pressure of the flow control valve;
• and
• a controller that calculates a target speed of the hydraulic cylinder based on an operating variable of the operating device so that an operating range of the working device is limited to a target surface and above, calculates a target operating pressure of the flow control valve based on the target speed, and controls the solenoid valve according to the target operating pressure, wherein
• the work machine further includes a pressure sensor for measuring a meter-out pressure of the hydraulic cylinder, and
• the controller calculates a correction value of the target operating pressure to keep the measured meter-out pressure within a range from a predetermined first lower limit value to a predetermined first upper limit value while driving the hydraulic cylinder to perform a predetermined operation on the working device, and corrects the target operating pressure according to the correction value.