Insert & Injection Molding Metal Stampings
Insert molding and overmolding combine precision metal stampings with molded plastics - creating complete components that integrate connection, insulation and structural function in a single part.
- ISTAMPING runs both halves in-house: the stamped inserts come off 21 high-speed presses and are molded on our own 43 injection molding machines, including vertical insert-molding cells. Our multi-material insert/overmolding assemblies serve automotive, EV and appliance customers, delivering complete parts that reduce downstream assembly cost.
🔒 NDA Protected⚡ 2-Hour Quote Response📁 STEP, IGES, X_T, DWG
Trusted Tier-1 & OEM Standards:
CHALLENGES WE SOLVE
Insert & Injection Molding Stamping Challenges & Our Solutions
ISTAMPING runs both halves in-house: the stamped inserts come off 21 high-speed presses and are molded on our own 43 injection molding machines, including vertical insert-molding cells. Our multi-material insert/overmolding assemblies serve automotive, EV and appliance customers, delivering complete parts that reduce downstream assembly cost.
01
EV busbar assemblies
The Challenge
Off-spec or inconsistent ev busbar assemblies cause assembly failures and field returns.
Our Solution
Insert molded EV busbar assemblies - stamped copper busbars encapsulated in engineered plastics for insulation and mechanical protection.
02
Insert molded connectors
The Challenge
Unreliable supply of insert molded connectors disrupts production schedules.
Our Solution
Precision stamped contacts insert molded into connector housings - one complete part instead of multiple sub-assemblies.
03
Overmolded cable assemblies
The Challenge
Off-spec or inconsistent overmolded cable assemblies cause assembly failures and field returns.
Our Solution
Stamped terminals overmolded with cable assemblies for sealed, strain-relieved connections in automotive and appliance applications.
04
Sensor housings
The Challenge
Unreliable supply of sensor housings disrupts production schedules.
Our Solution
Insert molded sensor housings combining stamped metal elements with molded plastic bodies for integrated function.
Need Insert & Injection Molding Stampings That Meet Spec?
Send your drawing for a free DFM review and quote within 24 hours.
ENGINEERING CAPABILITIES
Insert & Injection Molding Stamping Specifications & Equipment
Part Specifications
| Specification Parameter | Automotive & EV Standard | High-Precision Custom |
|---|---|---|
| Part Thickness | 0.10 mm – 3.0 mm | Per drawing |
| Standard Tolerance | ±0.025 mm (±0.001 in) | Tighter on critical features |
| Positioning Precision | 0.005 mm | — |
| Press Capacity | 25–110 tons (21 presses) | — |
Equipment
Aida High-Speed Presses
20 presses, 25–80T, up to 300 SPM with 0.005 mm positioning.
In-House Quality Lab
CMM, optical measurement and in-line vision systems verify critical features on every lot.
In-House Tool Room
Wire EDM, CNC machining and optical profile grinding keep die design and build in one loop.
Reel-to-Reel Plating
Selective gold (2-8 µm), tin and zinc (5-12 µm) plating through approved partner lines for corrosion and conductivity.
From Drawing to Production
DFM Review
Free design-for-manufacturability analysis within 24 hours.
Tooling
In-house die design, build and try-out.
Production
High-speed stamping with in-line vision inspection.
Delivery
QC, packaging and on-time shipment.
APPLICATION & INDUSTRY SOLUTIONS
Metal Stampings for Insert & Injection Molding
EV busbar assemblies
Insert molded EV busbar assemblies - stamped copper busbars encapsulated in engineered plastics for insulation and mechanical protection.
Insert molded connectors
Precision stamped contacts insert molded into connector housings - one complete part instead of multiple sub-assemblies.
Overmolded cable assemblies
Stamped terminals overmolded with cable assemblies for sealed, strain-relieved connections in automotive and appliance applications.
Sensor housings
Insert molded sensor housings combining stamped metal elements with molded plastic bodies for integrated function.
Insert Molded Components with Precision Metal Stampings
Insert molding combines precision metal stampings with molded plastics to create complete components that integrate connection, insulation and structural function in one part. ISTAMPING's multi-material insert/overmolding assemblies serve automotive, EV and appliance customers, reducing downstream assembly cost.
- Metal stamping and injection molding under one roof
- Eliminates downstream assembly - complete parts ship ready to install
- Multi-material options for automotive, EV and appliance programs
- Reduced total cost through integrated production
Metal-to-Plastic Bonding That Holds
Insert molding only performs as well as the metal it starts with. We control every variable that determines bond integrity: reel-to-reel selective plating keeps adhesion layers precisely where resin will flow, while ±0.005 mm positioning accuracy and in-house progressive dies hold insert geometry stable shot after shot. Because stampings run on Aida high-speed presses under IATF 16949:2016 process control, dimensional consistency survives the thermal cycling of molding and end-use — so plated interfaces resist peeling, inserts stay anchored under vibration and heat, and assemblies hold up across thousands of cycles.
- Reel-to-reel selective plating puts adhesion finishes exactly where resin will flow, maximizing pull-out strength without plating waste
- ±0.005 mm insert positioning held by precision progressive dies, verified by CMM and in-line vision before molding
- Burr-controlled edges let 0.05-3.0 mm stamped inserts seat cleanly and stay fixed in mold cavities across high-speed runs
- IATF 16949:2016 process control keeps plating thickness and dimensional stability consistent from first article to full production
Insert & Injection Molding Applications
EV busbar assemblies
Insert molded EV busbar assemblies - stamped copper busbars encapsulated in engineered plastics for insulation and mechanical protection.
Insert molded connectors
Precision stamped contacts insert molded into connector housings - one complete part instead of multiple sub-assemblies.
Overmolded cable assemblies
Stamped terminals overmolded with cable assemblies for sealed, strain-relieved connections in automotive and appliance applications.
Sensor housings
Insert molded sensor housings combining stamped metal elements with molded plastic bodies for integrated function.
MATERIALS & COMPLIANCE
Materials for Insert & Injection Molding Applications
Material certifications and compliance documents available on every lot.
Brass
Common Alloys
Finishing
Copper
Common Alloys
Finishing
Phosphor Bronze
Common Alloys
Finishing
Need a Specific Alloy or Coating?
Tell us the material grade and finish — we confirm availability and certification before quoting.
🔒 MTC / CoC / RoHS available per lot
DFM & ENGINEERING SUPPORT
Design for Manufacturability for Insert & Injection Molding
We review material, tolerance, bend and volume economics before tooling starts.
What We Review
EV busbar assemblies geometry
Feasibility of ev busbar assemblies — material formability, bend radii, tolerance stack-up and plating compatibility.
Insert molded connectors geometry
Feasibility of insert molded connectors — material formability, bend radii, tolerance stack-up and plating compatibility.
Overmolded cable assemblies geometry
Feasibility of overmolded cable assemblies — material formability, bend radii, tolerance stack-up and plating compatibility.
Sensor housings geometry
Feasibility of sensor housings — material formability, bend radii, tolerance stack-up and plating compatibility.
DFM to Production
Submit Drawing
STEP / IGES / DWG / PDF with quantity and material.
24H DFM Feedback
Cost-down suggestions and feasibility confirmation.
Tooling & Samples
In-house die build with first-article inspection.
Mass Production
High-speed stamping with SPC and PPAP documentation.
Get a Free DFM Review
Send your drawing — receive feasibility feedback and a quote within 24 hours.
STEP / IGES / X_T / DWG / PDF
QUALITY ASSURANCE & INSPECTION
IATF 16949:2016 Certified, Verified on Every Lot
CMM, optical measurement and in-line vision inspection at press speed.
🔬 Inspection HardwareIn-House Quality Lab
- CMM & optical measurement for flat and 3D parts
- In-line vision systems inspecting at press speed
- SPC on critical features to catch drift as a trend
🎯 Quality StandardsIATF 16949:2016 Certified
- IATF 16949:2016 automotive quality management
- ISO 14001:2015 environmental management
- PPAP documentation for automotive & EV programs
📜 TraceabilityFull Lot Traceability
- First-article inspection against the drawing
- Lot-level material traceability back to the coil
- Inspection records on every shipment
Download Sample Quality Control & Inspection Reports
Review our standard CMM inspection sheet, Material Composition Certificate, and RoHS report templates.
CASE STUDIES
Insert & Injection Molding Case Studies
EV Battery · Case Study
EV Busbar Case Study: Battery Pack Interconnects
High-volume busbar stamping for EV battery pack interconnects — tolerance, plating and delivery evidence.
Automotive · Case Study
Progressive Die Case Study: Automotive Terminal Program
A multi-million-piece terminal program run on progressive dies with SPC and PPAP evidence.
ORDERING PROCESS & FREQUENTLY ASKED QUESTIONS
How to Order Insert & Injection Molding Stampings & Frequently Asked Questions
📁 Step 1
Submit CAD & Specs
Send 2D/3D drawings (STEP, DWG, PDF) with quantity, material, and tolerance requirements.
⏱️ Step 2
24H DFM & Quotation
Our engineering team conducts DFM analysis and provides a competitive quote within 24 hours.
⚙️ Step 3
Precision Manufacturing
High-speed progressive die stamping, secondary forming, finishing, and surface treatment per your specifications.
✈️ Step 4
100% QC & Express Shipping
100% dimensional inspection, anti-corrosion packaging, and global express delivery.
What is the MOQ for Insert & Injection Molding metal stampings?
We support prototyping from 1 piece and mass production from roughly 100k pieces upward, depending on tooling economics.
Ready to Start Your Precision Stamping Program?
Send your drawing today for a free DFM review and detailed quotation within 24 hours.
🔒 100% Confidential | NDA Protected | 24H Response
RELATED INDUSTRIES
Related Industries
Aerospace
Aerospace metal stamping for EMI shields, connector terminals and precision brackets - material certifications, lot traceability and documented process controls on every shipment, from 25-110 ton high-speed progressive dies.
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Appliance
Home appliance manufacturers require high-volume stamped components that balance cost, quality and reliability - often with complex geometries and specific finish requirements.
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Automotive
The automotive industry is our most demanding and most important market. IATF 16949-certified production, PPAP documentation and zero-defect quality are the baseline for automotive stamping suppliers.
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