Sun Valley, California

Precision
Injection
Molding

Local. Fast. Flexible. Circle K Plastics delivers quality injection molding for manufacturers across the San Fernando Valley โ€” from small runs to production volumes.

9
Machines
5K
Sq Ft Facility
400
Tons Capacity
50+
Ton Min Clamp

Your Local
Molding Partner

Circle K Plastics is a Sun Valley-based injection molding shop built for manufacturers who need a reliable, nearby supplier โ€” no long lead times, no overseas headaches.

We specialize in low-to-medium complexity parts for local manufacturers, product developers, and industrial suppliers across the greater Los Angeles area. Quick turnaround and direct communication are what set us apart.

Whether you need a short prototype run or ongoing production support, we make it easy to work with us โ€” no red tape, just results.

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Locally Based

Sun Valley, CA โ€” serving the San Fernando Valley and greater LA area.

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Fast Turnaround

Short scheduling queue means faster lead times than large shops.

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Flexible Runs

We welcome small and medium production runs โ€” no minimum too small.

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Direct Access

Talk directly to the people running your job, not a sales intermediary.

What We Do

Capabilities

01

Thermoplastic Molding

ABS, PP, PE, nylon, acetal, and more โ€” we work with most standard engineering-grade thermoplastics.

02

Prototype & Short Runs

Ideal for product development, testing, or low-volume production where large shops won't bother.

03

Production Runs

Consistent, repeatable parts at volume. We'll work with your molds or help source tooling.

04

Customer-Supplied Molds

Bring your existing tooling โ€” we'll qualify it, maintain it, and run consistent parts from it.

05

Industrial Components

Brackets, housings, knobs, covers, spacers, and other structural plastic parts for industrial use.

06

Packaging & Consumer Parts

Simple containers, lids, clips, handles, and similar consumer-facing components.

Our Equipment

9-Machine Fleet

Our press tonnage ranges from 50 to 400 tons, giving us the flexibility to run small delicate parts and larger structural components โ€” all under one roof.

50 ton
Small precision parts
100 ton
Light industrial
150 ton
Medium components
200 ton
Multi-cavity runs
250 ton
Larger housings
300 ton
Structural parts
400 ton
Heavy-duty runs

Get a
Free Quote

Tell us about your part and we'll get back to you quickly. We're local โ€” so you can also just call.

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Address 11345 Penrose St, Sun Valley, CA 91352
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Hours Mon โ€“ Fri, 7:00 AM โ€“ 4:00 PM