High-Performance Molds for Complex Parts
At Steelplus, we specialize in the development and manufacturing of molds for a wide range of complex and high-performance part typologies. Our engineering and tooling expertise allow us to tackle technical challenges across various industries, always delivering precision, reliabilityand production efficiency.
Thanks to advanced molding technologies and decades of experience, we support our clients in producing parts with demanding geometries, surface requirementsand functional integrations.
Below are some of the part typologies we manufacture molds for:
                                            Threads / Unscrewing Mechanisms
For parts that require threaded closures or internal/external screw geometries, we develop molds with automatic unscrewing systems — ensuring perfect thread formation and dimensional consistency. Ideal for caps, closuresand mechanical components.
Bi-Injection (2K & 3K)
We design molds for dual and triple-material injection, enabling the production of multi-color or multi-material parts in a single cycle. This includes rigid-soft combinations, optical-functional integrationand overmolded seals.
                                            
                                            Gas-Assisted Technology
Our gas-assisted molding solutions reduce part weight, avoid sink marksand improve surface quality — especially useful for thick-walled parts or aesthetic components like handles, panelsand frames.
MuCell® Technology
We support foam injection molding (MuCell®) for lightweight structural parts. This microcellular process improves dimensional stability while reducing material consumption and cycle time — ideal for automotive and technical applications.
                                            
                                            Chrome, Metallization & Painted Parts
Steelplus molds are engineered for parts that undergo post-molding surface treatments. We ensure high-quality surface finishes and textural uniformity, allowing flawless chrome plating, vacuum metallization, or paint adhesion.
Transparent Parts
Optical clarity requires perfect surfaces. We manufacture molds for transparent components with high-polish finishes and strict control over flow lines, weld linesand shrinkage. Used in lighting, medicaland cosmetic packaging.
                                            
                                            Overmolding
Overmolding enables part integration and functional design. We create tools for both insert overmolding and 2-shot solutions, allowing plastic-on-rubber or plastic-on-metal combinations (among others), improving grip, comfortand durability.
Stack Molds
For high-volume production, our stack molds double the output without increasing machine footprint. This requires advanced thermal management, ejection systemsand mechanical stability — all handled in-house by our experts.
                                            
                                            Tight Tolerance Parts
We produce tooling for highly precise components with micron-level tolerances. These are common in the electronics, medicaland fluid control sectors, where consistency and accuracy are critical.
Belt Lines / Conveyors
Our molds support the production of components for conveyor and belt systems, including guiding elements, housingsand roller supports. These parts require mechanical strength, low frictionand durability.
                                            
                                            Fans & Ventilation Parts
From blades to housings and diffusers, we provide tooling for ventilation systems used in HVAC, automotiveand electronics. These parts demand dynamic balance, low weightand aerodynamic precision — all built into the mold.
And More
From high-cavitation consumer parts to functional industrial components, our capacity goes beyond this list. If it can be molded — Steelplus can engineer the solution.
Need help developing a new part or converting a concept into production-ready tooling?
