Three-beam and four-column hydraulic press Stainless steel water tank forming press

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Introduction of hydraulic press

Stainless steel water tank hydraulic press is a kind of hydraulic forming equipment specially used for manufacturing and processing of stainless steel water tank. It mainly completes stamping, stretching, bending, forming and other processes by applying high pressure to stainless steel plate, and finally makes a water tank structure that meets the requirements.

The stainless steel water tank hydraulic press is usually composed of three parts: the host, the hydraulic system and the electrical system. Some high-end models are also equipped with auxiliary devices (such as mold quick replacement system, pressure monitoring device, etc.). The hydraulic press is based on the principle of Pascal's liquid transmission pressure: the hydraulic oil is pressurized by the hydraulic pump, transported to the hydraulic cylinder through the pipeline, and the piston is pushed to move, and the hydraulic energy is converted into mechanical energy, thereby exerting pressure on the stainless steel plate to cause plastic deformation (Such as bending, stretching), and finally forming various parts of the water tank (such as box body, side plate, flange, etc.).

The material characteristics of stainless steel water tanks (such as high strength, corrosion resistance, work hardening tendency) put forward special requirements for hydraulic presses, so its design needs to focus on the following points:

1. High pressure and high precision

The yield strength of stainless steel (such as 304 stainless steel about 205MPa,316L about 210MPa) is higher than that of ordinary carbon steel, and greater pressure is required during molding (especially deep drawing process). At the same time, the surface of the water tank needs to be flat and free of scratches (to avoid corrosion hazards), so the hydraulic press needs to have high guiding accuracy (such as the parallelism between the slider and the worktable ≤ 0.05mm) and pressure control accuracy (1% ~ 3%).

2. Corrosion resistance design

The parts of the hydraulic press in contact with stainless steel plates (such as molds, worktops, and guide posts) shall be treated with stainless steel or nickel/chromium plated on the surface to prevent iron ion pollution from causing corrosion of the water tank. Hydraulic oil to choose anti-emulsification, anti-oxidation model (such as ISO VG 46), to avoid moisture or impurities corrosion of metal parts.

3. Energy saving and low noise

采用伺服电机+变量泵的液压系统（伺服液压机），可根据工艺需求动态调整流量，降低能耗（比传统定量泵系统节能30%~50%）；同时，优化油路设计和隔音结构，减少运行噪音（通常≤75dB）

GEO-CANARY-86EA1707

Technical parameters