High-Precision LPG Cylinder Manufacturing Moulds for Global Production Lines
In the global pressure vessel industry, manufacturing liquefied petroleum gas (LPG) cylinders demands the ultimate level of safety, structural integrity, and repeatability. To achieve this, every production stage relies on high-end, reliable tooling. As an industry-leading LPG cylinder mould manufacturer, Hengshui Dongmo Precision Metal Products Co., Ltd. delivers turnkey, heavy-duty stamping dies designed to meet strict international standards (such as DOT, EN, and ISO).
Whether you are upgrading an existing production line or setting up a new automated LPG cylinder manufacturing plant, our rugged tooling solutions ensure high efficiency, minimum material waste, and impeccable part dimensions.
End-to-End Mould Solutions for LPG Cylinder Production
We design and manufacture the complete suite of industrial molds required to produce standard 3kg, 5kg, 6kg, 12kg, 15kg, and 50kg LPG bottles:
LPG Cylinder Deep Drawing Die: The core of the cylinder body. Our deep drawing tools optimize metal flow during the hydraulic press stage, preventing any wrinkling, localized thinning, or micro-cracking in the steel blanks-ensuring the cylinder shell meets extreme burst-pressure tests.
Blanking & Trimming Dies (落料模): High-speed, heavy-duty blanking tools that cut perfect circular steel discs from coils with zero burrs, reducing the need for edge grinding.
Guard Ring & Foot Ring Forming Moulds (护罩/底座模具): Specialized bending, punching, and rolling dies to form ergonomic handle guards and stable bottom foot rings that withstand rough transport handling.
Valve Seat / Bung Punching Tooling: High-precision single-stage or progressive tooling for perfect alignment of the cylinder neck ring, guaranteeing gas-tight welding and valve installation.
Engineered for Extended Tool Life & Maximum Safety
LPG cylinder steel (such as HP295 or SG295) is thick and tough, placing massive stress on tooling. Hengshui Dongmo solves this through superior engineering:
Premium Cr12MoV & SKD11 Tool Steel: We only utilize top-grade, vacuum-heat-treated tool steels and apply advanced surface coatings (such as TD coating or PVD) to drastically reduce friction, eliminate galling, and extend tool life to hundreds of thousands of strokes.
Strict Quality Inspection & Trial Runs: Every LPG bottle mold undergoes rigorous simulation and internal press trials before shipment. We provide sample stamping parts to our clients for verification to ensure 100% compliance.
Custom Engineering & DFM Support: Our team works closely with your engineers to adjust parameters based on your specific hydraulic press tonnage, automation level, and raw material thickness.
Optimize Your LPG Cylinder Production Today
Partner with a trusted Chinese mold manufacturer to secure high-performance, cost-effective tooling. Contact our engineering support team now for technical consultation, detailed 3D design reviews, and factory-direct pricing.
Company Name: Hengshui Dongmo Precision Metal Products Co., Ltd.
Address: East of Guangming Street, Gucheng Town, Fucheng County, Hengshui, Hebei, China
Phone/WhatsApp: +8615930861038
Email: 15930861038@163.com

