Steel Mould

completes 3D modeling of rotomolding steel molds in accordance with customers’ product requirements. We draw separate drawings for mold processing, mold splitting and vent system layout. Meanwhile, we plan parting surfaces, reserve draft angles for demolding, check wall thickness uniformity and design mounting positions for inserts. This ensures the molds conform to rotomolding forming processes and prevents forming defects from the very beginning.

Complete 3D modeling of rotomolding steel molds in accordance with customers’ product requirements, and draw separate drawings for mold machining, mold splitting and venting system design. Meanwhile, perform parting surface layout, draft angle allowance reservation, wall thickness uniformity verification and insert mounting position design, to ensure the molds comply with rotomolding process specifications and prevent molding defects at the source.

uses robotic automatic welding and manual welding to splice mold components, delivering uniform, high-strength welds and effectively lowering welding deformation. After welding, overall pre-assembly is carried out to assemble and commission parting surfaces, rotating shaft structures and vent systems. This guarantees smooth mold opening and closing, even clamping force distribution, and perfect compatibility with subsequent rotomolding production.

Robot automatic welding combined with manual welding is adopted for splicing mold components, delivering uniform weld seams with high strength and effectively reducing welding deformation. After welding, overall pre-assembly is carried out, followed by assembly and commissioning of parting surfaces, rotating shaft structures and venting systems. This ensures smooth mold opening and closing, even clamping force distribution, and full compatibility with subsequent rotomolding production.

conducts multi-stage grinding and polishing on the inner cavity of steel molds, achieving a surface roughness of  mirror finish, which ensures flawlessly smooth surfaces of finished rotomolded products. Hard chrome plating, blackening and other surface treatment services are available upon customer requests to enhance rust resistance and wear resistance, extend mold service life, and suit mass production scenarios.

Multi-stage grinding and polishing are implemented on the inner cavity surface of iron molds to achieve mirror-level surface roughness, guaranteeing flawlessly smooth surfaces of finished rotomolded products after molding. We offer surface treatments such as hard chrome plating and blackening upon customer requests to enhance the mold’s rust resistance and wear resistance, extend service life, and meet high-volume production demands.

carries out comprehensive quality inspection for every set of rotomolding steel molds, covering dimensional accuracy, parting surface fitting tightness and ventilation smoothness of vent systems. Afterwards, molds are mounted on machines for trial molding. Actual rotomolding forming is conducted to verify uniform heating, cooling efficiency and demolding performance. Minor process adjustments are made to fix wall thickness deviation and forming defects until the molded products fully meet customer standards, before delivery for mass production.

Backed by mature manufacturing techniques for rotomolding steel molds, a complete quality control system and a professional technical team, Starway Roto provides high-quality custom rotomolding mold services for clients at home and abroad, helping customers achieve stable and efficient production of various rotomolded products.

Starway Roto conducts full-item quality inspection for every set of rotomolding steel molds, covering dimensional accuracy, parting surface fitting tightness and vent system unobstructed performance. Afterwards, molds are mounted on machines for trial molding. Actual rotomolding forming verifies the mold’s heating uniformity, cooling efficiency and product demolding performance. Fine-tuning of processes is implemented to rectify wall thickness deviations and forming defects until the molded products fully meet customer specifications, after which the molds are delivered for mass production.

Backed by mature manufacturing techniques for rotomolding iron molds, a comprehensive quality control system and a professional technical team, Starway Roto provides high-quality custom rotomolding mold services for domestic and overseas clients, supporting stable and efficient production of all types of rotomolded products.