Injection Molding

Production tooling and molded parts for one-off through high-volume programs.

  • Single + Multi-Cavity
  • Engineering Resins
  • Overmold + Insert

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Injection Molding

Single-cavity prototype tooling through multi-cavity production molds. Engineering-grade resins, carbon-filled materials, overmold and insert assemblies — quick-turn for prototypes, scaled cleanly for volume.

Materials
PC, PA, ABS, PEI/Ultem, PS-CF, PPA-CF, PEEK
Tolerances
±0.05–0.15 mm typical
Lead time
Tooling 4–8 wks · First parts 1–2 wks after tool
Volume
100 → 1M+ parts
Request a Quote See the case study
Capabilities
  • Single + multi-cavity tooling
  • Engineering-grade resins
  • Carbon-filled (PS-CF, PPA-CF)
  • Overmold + insert molding
  • Quick-turn prototype tooling
  • Production-volume scale-up
Manufacturing focus
  • Mold design review
  • PPAP / first article
  • Tool sourcing + qualification
  • Cycle-time optimization
  • Production scale-up
  • Resin selection

Tooling engineered for the second batch, not just the first. Gating, cooling, and ejection decided before any steel is cut.

Engineering process

Injection Molding in 3 phases

A structured engineering workflow — same team across every phase, no handoffs.

  1. 1

    Mold design review

    Gating, cooling, and ejection layout reviewed against the part — DfM corrections before steel is cut.

  2. 2

    Tool build

    Single- or multi-cavity tooling sourced and qualified to a verified part dimension report.

  3. 3

    First-article + ramp

    PPAP-style first-article validation, then ramp to bridge or production volumes.

Featured case study

69/LED Taillight Assembly

A multi-component taillight program for the classic Camaro community — injection-molded lenses, custom housings, PCB integration, and finished assembly.

69/LED Taillight Assembly
Challenge
Replace a discontinued OEM taillight with a multi-component assembly that buyers can install straight from the box — matching original fitment while modernizing the lamp logic.
Engineering solution
Multi-cavity injection-mold tooling for housings and lenses, custom PCB integration, sequential LED logic, and full assembly plus functional test — all under one program team.
Manufacturing outcome
Fully assembled, tested, ship-ready units delivered to the restoration community.
View full case study
What you'll receive

Deliverables, not deliverables-speak

Concrete artifacts in your hands — files, parts, reports, and packages ready to use.

  • Single + multi-cavity tooling
  • Prototype + production molded parts
  • Mold design review
  • Resin recommendation
  • First-article inspection reports
  • Tool maintenance plan
  • Production runs (100 → 1M+)
  • Overmold + insert assemblies
Why M² engineering

Why companies trust M² Engineering

  • Carbon-filled experience

    PS-CF and PPA-CF handled in-house since these polymers became viable — high stiffness, low warp.

  • Overmold + insert

    Two-shot and insert programs scoped end-to-end, not handed to a sub.

  • Bridge to volume

    Same tool path serves 100-part runs and 100k-part production — no re-engineering.

  • Direct access

    Communicate directly with experienced engineers throughout the project.

  • 3Decades of combined experience
  • $120MManufacturing company built
  • 25+Years engineering leadership
  • 100%Direct founder access
Industries served

Where this capability ships

  • Automotive
  • Consumer Products
  • Electronics
  • Industrial Equipment
  • Specialty Manufacturing
Start the conversation

Talk directly with the engineers who will work on your project

Send drawings, a sketch, or a product concept. Buzz or Jack will respond personally with practical engineering guidance — typically the same business day.

Request a Quote Email Buzz directly