Plastic Overmolding on Metal
Plastic overmolding on metal involves injecting plastic directly around a metal insert—such as a stamped part, shaft, gear, or sheet metal—to produce a single, integrated part in a single operation, without the need for additional assembly.
This is a two-way precision exercise: the metal insert must be exactly to size, because there is no elasticity to compensate for any discrepancy between the dimensions of the mold gate and those of the part. Even the slightest discrepancy between the mold maker, the injection molding contractor, and the metal part manufacturer can quickly turn into a headache involving three suppliers.
Everything is made in-house, from the mold to the finished product
At Sagaert, this problem no longer arises: the mold, the insert (stamped, turned, milled, or bent), overmolding on our digitized presses, prototyping, and inspection tools are all manufactured in-house at our French plants. One point of contact, one price, and no tolerance conflicts between suppliers.
A wide range of technical applications
This expertise enables us to produce overmolded stamped inserts, overmolded shafts and gears, overmolded inserts on sheet metal, wires, or tubes, as well as two-material overmolded parts and parts with high tensile strength.
Designed and manufactured in France
Everything is manufactured in our French factories, using tooling machined in our own workshops. This complete integration—from the insert to the finished part—is why our customers trust us in this area.
Are you working on a metal overmolding project? Entrust your project to us →
In detail
The metal insert must be precisely to size: there is no flexibility to compensate for an discrepancy between the dimensions of the mold gate and those of the part. Even the slightest discrepancy between the mold , the injection molding contractor, and the metal part manufacturer can quickly become a headache for all three— —suppliers.
At Sagaert, this problem no longer arises: the mold, the insert (stamped, turned, milled, or bent), the overmolding on our digitized presses, prototyping, and the inspection tools are all manufactured in-house at our French facilities. A single point of contact, a single price, and zero tolerance conflicts between suppliers.
This expertise enables us to produce overmolded stamped inserts , overmolded shafts and gears, overmolded inserts on sheet metal, wires or tubes, as well as parts made using two-material overmolding or high- breaking strength.
Everything is manufactured in our French factories, using tooling machined in our own workshops. This fully integre —from the insert to the finished part—is why our customers trust us with this line of business.
Are you working on a metal overmolding project?
Specify the metal part (stamped part, shaft, gear, sheet metal) and your quantities: our experts will quickly assess the feasibility.
Request a QuotePlastic Overmolding on Metal: Frequently Asked Questions
This process involves injecting plastic directly around a metal insert—such as a stamped part, a , a shaft, a gear, or sheet metal—to produce, in a single operation, a single, integrated part without any separate assemblies.
Because the metal insert must be precisely to size: unlike a textile insert, there is no elasticity to compensate for any discrepancy between the dimensions of the mold and those of the part.
Yes, through stamping, turning, milling, or bending, in our French factories. The mold, insert, overmold , and inspection tools are all manufactured at Sagaert—a single point of contact, zero conflicts s in tolerances between suppliers.
Stamped inserts, shafts, gears, as well as dual-material overmolded parts or parts with high tensile strength and high- —on sheet metal, wire, or tubing.
Through our contact form: Send us your floor plan or a clear photo of the room, and a technical representative will review your request.
Want to see more applications? Head over to Plastic overmolding for the entire product line.