One of the reasons for the hydraulic pressure gauge showing no pressure on the solar water barrel forming hydraulic press is due to the loose pressure adjustment screw on the hydraulic press, leakage on the oil circuit board of the hydraulic press for solar water barrel molding, damaged oil pump, leaking solenoid valve core, and worn piston seal on the cylinder.

Adjust pressure by turning clockwise, modify the hydraulic oil route panel, replace or repair the oil pump, replace the solenoid valve, and replace the seals.

The hydraulic oil cylinder for solar water tank molding is analogous to a closed-end cylindrical pressure vessel. From a material mechanics perspective, the stress state varies with the ratio of the cylinder's inner diameter to wall thickness (D/t). Therefore, when calculating the comprehensive stress and thickness of the wall of the solar water tank molding hydraulic oil cylinder, it is necessary to consider different ratios of D/t and materials.
The solar water barrel molding hydraulic press can be selected for its operating mode based on specific usage requirements, rather than remaining stationary. Additionally, it's important to note that such solar water barrel molding hydraulic presses typically come with an independent power unit and electrical system, which can be controlled via buttons to ensure the product operates normally.