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U.S.-BASED CUSTOM PLASTIC INJECTION MOLDINGCustom Plastic Injection Molding & Turnkey Manufacturing

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60 + Years

Continuous Operation Since 1962

Up To

2000 Tons

Across 30 Injection Molding Machines

100 %

Fully Domestic U.S.-Based Manufacturing

24 Hour

Email Reply Standard

Why UPM?Clear accountability across the program

End-to-end domestic execution: From first-pass DFM through full-scale production, assembly, and distribution, UPM runs every stage in one ~130,000 sq ft facility under one ISO 9001:2015 quality system.

Scale with direct access: ~300 employees, $30M+ in annual revenue, and department-level staffing in Quality, Engineering, Maintenance, and Customer Service — with second-generation leadership in place since 2007 and direct executive access for active programs.

One point of accountability: The Account Manager and the Program Manager are the same person — one contact from quote through production. No vendor blame between molder, finisher, assembler, and warehouse.

Tooling and IP under U.S. law: Customer-owned tooling stays in Baldwin Park under U.S. legal jurisdiction and transfers to the customer upon payment in full. Domestic production stabilizes landed cost year over year and reduces inventory buffer requirements.

PUBLISHED PERFORMANCE Measured, not asserted

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99.33% On-Time Delivery
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5.4 DPMO Sigma Quality
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98% Customer Retention
UPM publishes its operating performance as 12-month rolling averages and reviews the same data in Executive Business Reviews held annually with all active customers.
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UPM structures its capabilities around the three teams that evaluate a molding program — supply chain, engineering, and program management.

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Supply Chain & Procurement

Lower Total Cost of Ownership through domestic production and 2-to-3-week post-tooling lead times. Reduce buffer inventory, and de-risk sourcing from tariff exposure, freight volatility, and offshore supply chain risk.

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Engineering & Product Development

First-pass DFM at no additional cost, mold flow analysis on complex parts, and material selection reviewed on STEP files — across 150-to-2,000-ton capacity for both precision components and large structural parts.

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Program & Operations Management

A single accountable contact, a 24-hour email reply standard, and a fully integrated turnkey model — molding, finishing, assembly, kitting, and distribution — under one roof.

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WHY COMPANIES ARE RESHORING Reshoring reduces total supply chain risk

Offshore sourcing often looks less expensive on piece price alone. Accounting for freight volatility, tariff exposure, inventory carrying cost, demurrage, and IP risk changes the total picture.

Reshoring with UPM allows you to:

  • Reduce the 4 to 5 months of buffer inventory typical of offshore programs
  • Stabilize landed cost year over year
  • Keep customer-owned tooling and intellectual property under U.S. legal jurisdiction
  • Resolve production issues in days, not shipping cycles

Our CapabilitiesBuilt for complex production programs

UPM’s capabilities run as one integrated system — each built to reduce risk, eliminate handoffs, and keep production under one accountable operation.

  • Custom Injection Molding
    universal plastic mold, home

    Custom Injection Molding

    UPM supports projects from intricate, high-tolerance components to large-format parts, using 30 machines from 150 to 2,000 tons. First-pass DFM at no additional cost identifies sink marks, knit lines, and gating issues before tooling is cut — preventing costly revisions after steel is committed.

  • Large Part & High Tonnage Molding
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    Large Part & High Tonnage Molding

    With 5 presses at 1,500+ tons — including 3 at 2,000 tons — UPM holds among the largest tonnage capacity available on the U.S. West Coast. This supports large structural components, complex housings, and specialty vehicle parts at a single supplier, without splitting production across vendors.

  • Design for Manufacturability (DFM)
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    Design for Manufacturability (DFM)

    First-pass DFM is included at no additional cost on every program. UPM reviews gating, wall thickness, and material selection on STEP files and runs mold flow analysis on complex parts — identifying defects before tooling investment.

  • Kitting, Packaging & Distribution
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    Kitting, Packaging & Distribution

    UPM manages kitting, custom packaging, labeling, and distribution logistics in-house, delivering consolidated, market-ready product instead of requiring separate warehousing and fulfillment providers.

  • Quality, PPAPs & First Articles
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    Quality, PPAPs & First Articles

    UPM is ISO 9001:2015 certified (Certificate #1715) and IATF 16949 compliant. Standard documentation includes PPAP Level 3 submissions, First Article Inspections (FAI), and full lot-level traceability — meeting OEM requirements in regulated and high-precision industries.

universal plastic mold, home

Custom Injection Molding

UPM supports projects from intricate, high-tolerance components to large-format parts, using 30 machines from 150 to 2,000 tons. First-pass DFM at no additional cost identifies sink marks, knit lines, and gating issues before tooling is cut — preventing costly revisions after steel is committed.

universal plastic mold, home

Large Part & High Tonnage Molding

With 5 presses at 1,500+ tons — including 3 at 2,000 tons — UPM holds among the largest tonnage capacity available on the U.S. West Coast. This supports large structural components, complex housings, and specialty vehicle parts at a single supplier, without splitting production across vendors.

universal plastic mold, home

Design for Manufacturability (DFM)

First-pass DFM is included at no additional cost on every program. UPM reviews gating, wall thickness, and material selection on STEP files and runs mold flow analysis on complex parts — identifying defects before tooling investment.

universal plastic mold, home

Kitting, Packaging & Distribution

UPM manages kitting, custom packaging, labeling, and distribution logistics in-house, delivering consolidated, market-ready product instead of requiring separate warehousing and fulfillment providers.

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Quality, PPAPs & First Articles

UPM is ISO 9001:2015 certified (Certificate #1715) and IATF 16949 compliant. Standard documentation includes PPAP Level 3 submissions, First Article Inspections (FAI), and full lot-level traceability — meeting OEM requirements in regulated and high-precision industries.

Case StudiesReal programs, measured results

On the Water Heater Pan program, UPM’s DFM-driven redesign cut part weight 65% — from 24+ lbs to 8.37 lbs — reduced the press requirement from 2,000 tons to 1,000 tons, and brought the unit price from ~$78 down to $26.28, in production within 30–45 days of approval.

INDUSTRIES SERVEDFour primary verticals, one molding partner

UPM is built for mid-market OEMs running hard-tooled production programs.

UPM also takes on selective consumer goods and hardware work. Many of the strongest partnerships begin before requirements are fully defined — when teams need manufacturing insight and a clear path to production.

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Automotive & Specialty Vehicles

Automotive and specialty vehicle programs demand durability, dimensional precision, and consistent cosmetic quality across extended production cycles. Manufacturing performance directly impacts safety, structural integrity, and brand presentation.
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Industrial & High-End Electronics

Industrial and high-end electronic products demand dimensional accuracy, cosmetic consistency, and reliable assembly integration. Enclosures, housings, and structural components must protect internal systems while maintaining tight tolerances and professional finish standards.
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Complex & Reusable Packaging

Reusable and structural packaging systems must perform consistently across repeated cycles of handling, transport, and storage. Durability, dimensional stability, and material performance are critical to protecting products and maintaining supply chain efficiency.
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Non-Sterile Medical & Laboratory Equipment

Medical and laboratory equipment components require dimensional accuracy, surface consistency, and repeatable production performance. Even in non-sterile environments, documentation discipline and process control are essential.
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FAQsFrequently Asked Questions

  • What does UPM do?

    Universal Plastic Mold (UPM) is a family-owned custom plastic injection molder founded in 1962 in Baldwin Park, California. UPM provides custom injection molding across 30 machines from 150 to 2,000 tons, large-part and high-tonnage molding, Design for Manufacturability, complex assembly and finishing, PCB integration, kitting, packaging, and distribution — all under one ISO 9001:2015 quality system.

  • What is UPM’s largest press tonnage?

    2,000 tons. UPM operates 30 injection molding machines from 150 to 2,000 tons, including 5 presses at 1,500+ tons and 3 at 2,000 tons — among the largest tonnage capacity available on the U.S. West Coast.

  • What certifications does UPM hold?

    UPM is ISO 9001:2015 certified (Certificate #1715) and IATF 16949 compliant. Standard documentation includes PPAP Level 3 submissions, First Article Inspections (FAI), and full lot-level traceability.

  • What industries does UPM serve?

    Automotive & Specialty Vehicles; Industrial & High-End Electronics; Complex & Reusable Packaging; and Non-Sterile Medical & Laboratory Equipment, with selective consumer goods and hardware work. UPM is built for mid-market OEMs in the $50M to $500M revenue range running hard-tooled production programs.

  • Where is UPM located, and does it ship nationwide?

    UPM operates one ~130,000 sq ft facility in Baldwin Park, California, with all molding, finishing, assembly, kitting, and packaging in-house. UPM ships nationwide and supports West Coast diversification and reshoring programs for U.S.-based OEMs regardless of location.

Have Questions? Ready to Get Started?

Simplify your supply chain with one accountable partner.