Injection Molding
Tooling and molding for your repeat plastic parts.
Insert Molding Servicesfor Your Metal & Plastic Parts
Bring your inserts, resin and critical interfaces into one reviewed molding plan. Define position, thread protection and joint requirements before your tool is built.
Get Your Part QuotePart CAD · insert drawing · resin · quantity · target delivery
Insert molding places a preformed component in the mold before resin is injected around it. Your insert and plastic become one molded assembly.
Match the Insert to Your Part’s Function
Compare 5 insert types. Select an insert to review the details for your application.
Threaded Insert Molding for Your Mounting Points
Review thread size, insert geometry and the loads your joint must carry.
| Insert spec | Drawing, thread, alloy and coating |
|---|---|
| Mating features | Joint loads and usable thread depth |
| Resin pairing | Grade, filler and molding conditions |
Final insert selection is reviewed for your application.
Keep Your Pivot and Fastener Bores Usable
For metal insert molding, define the bore and exposed faces needed for motion or clamping.
| Insert spec | Bore, outside diameter and sleeve length |
|---|---|
| Mating features | Clearance, bearing load and alignment |
| Resin pairing | Shrinkage, wall support and service temperature |
Final insert selection is reviewed for your application.
Locate Your Assembly Around Its Metal Features
Specify which end locates your assembly and which portion is captured by the plastic.
| Insert spec | Pin or stud drawing, alloy and surface |
|---|---|
| Mating features | Position, orientation and exposed length |
| Resin pairing | Retention geometry and thermal movement |
Final insert selection is reviewed for your application.
Protect Your Connector’s Contact Surfaces
For insert molding connectors, separate exposed mating surfaces from resin-covered support features.
| Insert spec | Contact drawing, plating and lot identity |
|---|---|
| Mating features | Pitch, orientation and mating envelope |
| Resin pairing | Insulation, temperature and requested ratings |
Final insert selection is reviewed for your application.
Review Your Custom Insert as Part of the Tool
Bring nonstandard hubs, brackets or inserts into the tooling review before committing to supply.
| Insert spec | Controlled drawing and inspection scope |
|---|---|
| Mating features | Joint function and loading orientation |
| Resin pairing | Resin compatibility and mechanical interlock |
Final insert selection is reviewed for your application.
Design Around Your Insert’s Critical Interfaces
Select one of 6 topics to see what we review before tooling.
Keep Your Insert Where Your Assembly Needs It
Review locating features, seating and orientation before tooling. Mark the interfaces that control your fit.
| Your input | Datums, exposed length and orientation |
|---|---|
| Our review | Insert location, seating and tool support |
Insert molding tolerances are agreed by feature and measurement condition.
Keep Your Threads and Contact Faces Usable
Mark surfaces that must remain exposed. Review locating and shut-off details around threads, bores and contact faces.
| Your input | Protected surfaces and usable thread depth |
|---|---|
| Our review | Locating features and shut-off interfaces |
Acceptance criteria are agreed for your drawing.
Design Retention Around Your Joint Loads
Review knurls, grooves and shoulders with the surrounding plastic. Match the geometry to your resin and assembly needs.
| Your input | Load direction, mating parts and use conditions |
|---|---|
| Our review | Mechanical interlock and plastic coverage |
Final performance is assessed using agreed sample tests.
Reduce Cracking Risk Around Your Insert
Review wall transitions, fillets and resin shrinkage around the insert. Thick bosses alone do not establish joint strength.
| Your input | CAD, loading, temperature and chemicals |
|---|---|
| Our review | Plastic coverage, stress concentrations and cooling |
Recommendations depend on insert geometry and the selected resin grade.
Review Flow Around Your Loaded Inserts
Discuss gate location and flow paths around metal features before they affect a load-bearing joint.
| Your input | Load paths, visible faces and gate restrictions |
|---|---|
| Our review | Flow obstruction and weld-line locations |
Simulation and validation scope, when required, are agreed in your quote.
Pair Your Insert and Resin for Your Working Conditions
Review differential thermal movement, moisture and exposure when pairing brass or stainless inserts with plastic.
| Your input | Alloy, coating, resin grade and service environment |
|---|---|
| Our review | Thermal movement, conditioning and compatibility |
Nylon insert molding requires an agreed moisture condition for fit and testing.
Define What Your Assembly Must Pass
Select one of 4 checkpoints to review your sample and production requirements.
Check Your Inserts Before They Enter the Mold
Review your controlled insert drawing and lot before loading.
- Drawing revision, dimensions and surface
- Threads, coating and visible damage
- Lot identity and agreed acceptance records
Acceptance methods and limits are agreed for your project.
Check Your Interfaces Before Production
Review the molded part against the agreed insert drawing, location and thread requirements.
- Insert presence, position and orientation
- Usable threads and exposed surfaces
- Sample results and required functional checks
Acceptance methods and limits are agreed for your project.
Agree the Loads Your Joint Must Withstand
Define retention and fastening requirements around your actual assembly.
| Your requirement | What to define |
|---|---|
| Pull-out resistance | Axial load, fixture and pull-out acceptance limit |
| Torque-out resistance | Test method and torque-out limit |
| Assembly torque | Fastener, mating part and assembly tightening conditions |
Acceptance methods and limits are agreed for your project.
Release Your Parts with Agreed Records
Review insert identity, molded acceptance and part protection before dispatch.
- Agreed checks and production identification
- Protected contact faces and usable threads
- Packing, labels and shipment records
Acceptance methods and limits are agreed for your project.
Plan Your Insert Supply and Total Part Cost
Your Insert Supply
| Supply route | Customer-supplied, specified purchase or custom sourcing |
|---|---|
| Control | Drawing revision, alloy, coating and lot identification |
Confirm who supplies and replenishes inserts, incoming acceptance and responsibility for rejected lots.
Your Quote Inputs
- Part CAD and insert drawing
- Resin grade, first order and annual demand
- Critical interfaces and test requirements
- Target delivery and ship-to location
Compare 4 cost drivers: tooling, insert loading, validation and secondary assembly. Your quantity and insert supply route shape the quote.
Dallas-Area Support. China Manufacturing.
Coordinate your engineering review, manufacturing and delivery requirements. Confirm the production and support scope in your quote.
Answers for Your Insert Molding Project
Insert molding or post-mold installation?
Mold-in inserts are positioned before injection. Thermal, ultrasonic and press-in methods add suitable inserts after molding. Review the route against your design, material and expected volume.
Can I supply my own inserts?
Customer-supplied inserts can be reviewed for your project. Share the controlled drawing, material, coating, lot records and replenishment plan. Agree incoming acceptance and responsibility for rejected lots before production.
How does this differ from overmolding?
Insert molding captures a preformed component, often metal, within molded plastic. Overmolding often adds another material onto a substrate. Identify your component and required interface first so the process scope is clear.
Can the insert or resin change later?
Changes can affect location, shut-off, shrinkage and retention. Review the revised drawing or grade and agree sample checks before releasing the next order.
What determines tooling and part cost?
Custom insert molding quotes depend on geometry, loading method, insert sourcing, resin, order quantity and validation. Supply part CAD, the insert drawing and first-order plus annual demand; minimum order and tooling lead time are confirmed in your quote.
