Ⅰ. Material Science & Die Durability
The core of our tooling lies in the selection of premium alloy steels (such as Cr12MoV or DC53). Unlike conventional molds, our inserts undergo a vacuum quenching and cryogenic treatment process. This ensures that the mold hardness reaches HRC 60-62 without becoming brittle, effectively resisting the intense friction generated during the 2-piece or 3-piece cylinder deep drawing process.
Ⅱ. Technical Specifications & Benchmarks
| Feature Index | Performance Standard | Engineering Benefit |
| Drawing Ratio | Optimized for single-hit reduction | Minimizes work hardening and material thinning |
| Concentricity | $\leq 0.03$ mm | Ensures uniform weld seams in final assembly |
| Surface Coating | TD (Thermal Diffusion) or PVD Coating | Reduces the need for heavy lubricants; prevents galling |
| Applicable Range | 2.5kg to 50kg cylinder bodies | Versatile configuration for diverse production lines |
Ⅲ. Solving the "Thinning" Challenge
One of the primary failure points in LPG production is excessive thinning at the dome crown. Our proprietary LPG Cylinder Mould design incorporates a specialized blank holder force (BHF) control mechanism. This allows for controlled metal flow during the stroke, ensuring that the wall thickness of the finished dome remains within 95% of the original sheet gauge.
Company Profile Headquartered in the industrial hub of Hebei, Hengshui Dongmo Precision Metal Products Co., Ltd. operates as a specialized R&D and manufacturing base for complex metal stamping solutions. With decades of experience in high-pressure vessel tooling, we provide more than just molds; we provide the technical consultancy required to optimize your entire stamping shop's efficiency.
