Precision Plastic Injection Molding & Integrated Mold Expertise | Sagaert
Your Trusted Partner for Engineering Plastics
From small technical parts to high-volume components, Sagaert Plastique is your industrial partner for all your plastic injection molding projects. With over 20 years of experience in thermoplastic processing, we have evolved our business to offer you complete control over the manufacturing process.
Our goal: to ensure the best technical tooling solution for high-quality injection-molded parts, delivered in large volumes at an optimized cost per part.Injection molding is a forming process that requires precise control at every stage of the injection cycle.
For example, we manufacture :
Plastic hardware
Component integration
Fiberglass-reinforced injection-molded parts
Promotional items
Military helmet
Silicone Injection
Automotive interior parts
Plastic Household Appliances
Aviation Parts
Material Handling
Micro parts
Small coil
Soft guards
Fuel cells and electrolyzers
Large technical parts
Automotive elastomer
Plastic paving
Plexiglass covers
High-volume packaging
Plastic civil engineering
Plastic channels
Transparent parts
Pet bins
Luminaires
Gratings
Plastic Injection Molding: Our Expertise
State-of-the-art machinery and optimal capacity
Sagaert Plastique currently operates about 50 state-of-the-art electric injection molding machines, which are at the heart of our success.
Precision and speed: Our presses deliver exceptional repeatability and speed. Precise control of temperature and internal pressure minimizes the risk of defects and mechanical degradation.
How Injection Molding Works: The process begins with the feeding of pellets into the hopper. The plasticizing screw, located inside the barrel, heats the material and pushes it toward the hot nozzle under high pressure, injecting the molten material into the closed mold.
Cycle time: Our machines optimize cycle time for rapid mass production—the cooling phase remains critical before the part is ejected.
Specific Technical Skills
We have mastered the most demanding molding processes to meet your challenges:
- Multi-material molding: overmolding and co-injection molding, such as plastic overmolding on metal or the assembly of synthetic resins and elastomers.
- High strength: molded parts reinforced with fiberglass or other materials, providing excellent mechanical strength and good impact resistance.
- Specialized molding: blow molding and a wide range of thermoformable materials, for applications such as the medical field (silicone injection molding) or cleanroom environments.
End-to-End Control: From Mold Manufacturing to Final Inspection
Sagaert's greatest strength lies in the vertical integration of our business units: we have brought together in France the expertise needed to manufacture complex plastic parts.
- Mold Manufacturing: CNC machining allows us to produce steel or aluminum injection molds, including multi-cavity or custom molds.
- Tooling Design: Our engineering teams have a thorough understanding of draft angles and the precise positioning of the parting line to facilitate mold opening and part ejection.
- Quality Control: We rigorously check the thickness of the main wall and the projected surface using our own inspection tools to ensure the part’s final shape.
This integrated approach remains your key advantage: a single point of contact throughout the entire process, optimized implementation to minimize the cost per part, and continuous monitoring of the part's strength.
Demanding Industrial Sectors
Automotive & Aerospace — critical parts, high mechanical strength, strict compliance with standards:
- Automotive interior parts (dashboards, engine components)
- Automotive elastomer
- Aviation Parts
- Fiberglass-reinforced injection-molded parts
Defense & Security — high-pressure components, impact resistance, military specifications:
- Military helmet (components and subassemblies)
- Plastic hardware
- Component integration
- Soft guards
Industry & Construction — from fluid management to structural components, mass production:
- Large technical parts
- Plastic flooring and grating
- Plastic channels
- High-VolumeHandling and Packaging
- Plastic civil engineering
Electronics, Medical & Miscellaneous — microcomponents and parts with a high-quality finish:
- Silicone injection molding (ideal for the medical industry)
- Micro-parts and small spools
- Plastic for Household Appliances and Lighting Fixtures
- Transparent parts and plexiglass covers
- Fuel Cells and Electrolyzers
- Pet bins
- Promotional items
Plastic Injection Molding: Frequently Asked Questions
What is your production capacity for plastic injection molding?
We operate about 50 state-of-the-art electric injection molding machines, which enable us to produce everything from small technical parts to high-volume components.
Do you make your own molds, too?
Yes, we perform the CNC machining of our injection molds (steel or aluminum, including multi-cavity molds) in-house, as well as quality control using our own inspection tools —a single point of contact from the mold to the finished part.
Do you offer overmolding and dual-injection molding?
Yes, in addition to conventional injection molding, we also perform overmolding and two-component injection molding, particularly to bond plastic to metal or combine resin with elastomers.
Do you work in a medical setting or a cleanroom?
Yes, we offersilicone injection molding suitable for the medical industry, as well as ISO-certified cleanroom production for parts with strict contamination tolerance requirements.
Which industrial sectors do you serve?
The automotive and aerospace industries, defense and security (including military helmets), heavy industry and civil engineering, as well as electronics, medical devices, and promotional items.
Can you manufacture both micro-parts and large parts?
Yes, our press fleet covers the entire range: from precision micro-parts to large-scale technical parts.
How do I get started on a plastic injection molding project with Sagaert?
Contact us with your design or specifications: we’ll evaluate the technical tooling solution best suited to your part and production volume.