This industrial heavy-duty spliced water tank rotational molding mould is built with thick carbon iron plate welding and an integral reinforcement structure, featuring a large circular positioning frame and multi-point lifting support. The entire mould undergoes stress relief treatment and a professional anti-rust surface coating, ensuring durability for long-term repeated rotomolding production. It is specially engineered for manufacturing large sectional spliced plastic water storage tanks used in water treatment, agriculture, and irrigation.

SUNMORE ROTO provides full customization for mould inner diameter, tank height, reinforcing rib structure, connecting flange, outlet position, and installation base. With a finely polished inner cavity, uniform heat conduction, and precise dimensional control, this cast iron rotomould ensures a smooth surface and stable forming quality of finished spliced water tanks, making it perfectly suitable for mass continuous production in rotomolding factories worldwide.

• Heavy-Duty Cast Iron Structure: Made of thick carbon iron plate with firm welding and stress relief treatment, high temperature resistant and anti-deformation, supporting long-cycle industrial production.
• Precision Polished Inner Cavity: Smooth inner mould surface without burrs, effectively reducing product post-grinding and trimming work, ensuring a consistent and beautiful finished tank appearance.
• Integrated Reinforced Frame & Lifting Lugs: Equipped with a large reinforced support frame and welded lifting lugs, convenient for overall hoisting, installation, and disassembly on large rotomolding machines.
• Excellent Structural Stability: Reinforced rib design on the mould body resists deformation during the high-temperature heating process.
• Fully Customizable Structure: Supports custom tank diameter, height, internal reinforcing ribs, outlet holes, embossed logo, and flange structure.
• Stable & Uniform Heat Conduction: Optimized mould structure design realizes uniform heat absorption, stable molding effect, and uniform product wall thickness, greatly improving production efficiency.
• Long Service Life & Easy Maintenance: Professional anti-rust paint surface treatment effectively resists corrosion in humid workshop environments, and is easy to clean and maintain after long-term use.