Kris Withouck, Alcami Co-founder

Plastic injection molding in Thailand, mastered.

Your part, molded to the same tolerance on the ten-thousandth cycle as on the first — with molds designed, machined and revised on our own shop floor, all under one ISO-certified roof.

Free quotation  ·  Reply within 1 business day

Quality
certified
ISO 9001 ISO 14001 ISO 22000
Message Mr. Kris WithouckAlcami Co-founder

Injection molding for
global product leaders

  • Dyson
  • Western Digital
  • Stanley Black & Decker
  • Greiner Bio-One
Why plastic injection molding

Molten plastic in. Identical parts out.

Injection molding melts plastic and injects it into a custom mold, where it cools into a single-piece part that is strong, consistent and repeatable. That is why it remains the default process for high-volume work where tolerance and finish both matter.

Founded in 2001, Alcami designs and manufactures plastic molds, parts and casings across four facilities in Thailand, the Philippines and Singapore — and injection molding is the cornerstone of what we do.

Why it wins

Excellent for mass production

The big costs come once, up front, in the tooling. After that, a single mold turns out large numbers of identical parts at a very low cost per part.

Single-piece strength

Each cycle molds one uniform, single-piece part — no joints, no welds — which is what gives molded parts their strength and clean finish.

Low scrap, high repeatability

Runners and offcuts are minimal, in line with our ISO 14001 commitment — and the ten-thousandth part matches the first.

In-house tooling

We make our own molds.

What separates our plastic injection factory from most contract molders in the region: mold design, CAM programming and CNC machining all happen in-house — on our own equipment, by our own engineers.

Molds machined in-house · ThailandDesign · CAM · CNC

When a first article comes back with a short shot or a witness line in the wrong place, the fix is a job on our shop floor — not a purchase order to a mold shop in another country.

  • Mold design & CAM programmingOur engineers design your mold and prepare the CAM files in-house — one team from CAD model to cutting path.
  • CNC machining on our own floorMolds, jigs and cutting tools machined on our own CNC equipment, steps away from the presses they will run in.
  • Aluminium molds as standardFaster builds, faster cycles and a shorter road to the first good part — and design revisions take days on our shop floor rather than weeks in a shipping container.
  • Steel when the job demands itFor very high volumes or abrasive-filled materials we also build in hardened and pre-hardened steel — the right tooling for your volume, honestly advised.
Injection molding vs. thermoforming

Choose the right process — honestly.

We run both injection molding and thermoforming in-house. Tell us your part and volume, and we will point you to the process that actually fits — not the one that is easiest to sell.

Injection molding

Choose injection molding when…

Small, intricate, identical parts — at volume.

  • Parts are small and highly detailed
  • Volumes are high and stable
  • Tight, repeatable tolerances are critical
  • Geometry needs ribs, bosses or molded-in threads
  • Per-part cost matters more than tooling cost
Thermoforming

Choose thermoforming when…

Larger, lighter parts — fast and affordable to tool.

  • Parts are large or deep — trays, housings, panels, covers
  • The part is sheet-based — uniform walls, no ribs or bosses
  • You need tooling quickly and affordably
  • The design may still change between runs
  • You want light, durable parts in PET, PP, ABS or PVC

Not sure which way to go? We do both — send your part and we will tell you which is right for you.

What we mold

Parts injection molding does best.

From precision electronics casings to cleanroom medical components, plastic injection molding shapes the small, precise, identical parts that other processes struggle to match.

Electronics casings & housings

Precision casings, housings and internal components for consumer electronics — molded, tested and DI-washed for clean assembly.

Casings · Housings · Internals

Medical & laboratory

Medical-grade components molded in cleanroom conditions, DI-washed and double-sealed — ready for controlled environments.

Cleanroom · DI-washed · Sealed

Molds, jigs & CNC machining

Aluminium and steel molds, jigs and cutting tools designed and machined in-house — plus CNC work in PU, PVC, PC, ABS and POM.

Molds · Jigs · CNC

Technical & industrial components

Tight-tolerance technical parts in engineering plastics like POM, PA and PC — held to dimension, CMM-verified and repeatable.

POM · PA · Tight tolerance

Consumer products

Durable everyday parts and casings, molded and finished — including overmolded soft-touch grips, seals and multi-color parts.

Casings · Grips · Multi-color

Finished, assembled products

One supplier for the finished item — molded, assembled, welded, tested and packed, ready for your warehouse or ours.

Assembly · QC · One supplier
Materials

The right plastic for the job.

We mold the standard commodity and engineering polymers — matched to your strength, temperature, wear and food- or medical-contact requirements.

ABS
Acrylonitrile butadiene styrene
Tough, rigid, impact-resistant — housings & casings
PS
Polystyrene
Light, rigid, economical — high-volume parts
PP
Polypropylene
Durable, chemical-resistant — living hinges & closures
HDPE
High-density polyethylene
Tough, chemical-resistant — containers & caps
PC
Polycarbonate
High-impact, high-clarity — guards & covers
POM
Polyoxymethylene (acetal)
Low-friction, dimensionally stable — gears & precision parts
PA
Polyamide (nylon)
Strong, wear-resistant — mechanical parts
PMMA
Polymethyl methacrylate (acrylic)
Optical clarity — lenses & light guides
TPU
Thermoplastic polyurethane
Flexible, rubber-like — seals & soft-touch overmolds

We also mold specialty sustainable materials — bio-based, biodegradable and recycled grades. Working to a spec, food-contact or medical grade? Send it over — we will match the material to your part.

What's included

One molding partner, end to end.

Molding is where the job starts, not where it ends. Washing, testing, welding, packing and transport all happen on the same site — so your plastic molding and manufacturing stays in one place.

Cleanroom line · ThailandClass 10,000 / ISO 7 molding
  • Cleanroom moldingInjection molding in Class 10,000 / ISO 7 cleanrooms — for medical, food-contact and precision electronics parts.
  • DI washing & cleanroom packingUltra-pure deionized washing from our in-house DI plant, with double-sealed Class 100 bagging or vacuum sealing.
  • Overmolding & insert moldingTwo or more materials in one part — seals, soft-touch surfaces, multiple colors or molded-in metal inserts — removing an assembly step.
  • In-house testing labUV chamber, weatherability, drop, vibration, salt spray and ESD testing, plus CMM measurement — during and after production.
  • Assembly & weldingSub-assembly plus heat and ultrasonic welding, done on the same floor as molding.
  • Warehousing & transportPacking, warehousing and domestic transport — one supplier from molding to your dock.
How it works

From CAD file to packed pallet.

Getting a molded part into production takes three steps — and our engineers stay involved throughout, happy to advise your design team on what will and will not run well on our machines.

01

Send us the part

A 3D CAD file with a print sheet showing tolerances, material specification and volumes. Design not final? Our engineers will review it for moldability before you commit to tooling.

02

Approve the tool and the numbers

We quote tooling and cost per part separately, so you can see where your money goes — then build and test the mold.

03

Sign off the first article

Once the tool passes QA and you approve the parts, production runs at your volume — parts molded, finished, packed and delivered.

Inside one molding cycle

  1. 01Clamp

    The two mold halves close and clamp under pressure, ready for the shot.

  2. 02Inject

    Melted plastic is injected into the closed mold until the cavity is filled.

  3. 03Cool & reload

    The part cools — timed to its thickness and material — while the machine reloads for the next shot.

  4. 04Eject

    The mold opens and ejector pins push the finished part out. Then the cycle repeats, identically.

Start with step 01 → Free quotation · Tooling & cost per part priced separately · No commitment
Inside the factory

See where your parts are molded.

Take a 360° virtual tour of our flagship plastic injection molding factory in Prachinburi, Thailand — see the presses, cleanroom and skilled team in action.

Proven on the floor

Molded parts, real results.

Medical-grade wearable · Overmolding
3 months

Concept to production-ready

Waterproof by overmolding

A wearable sports-sensor startup came to us with 3D concept models. Our engineers overmolded a TPE seal directly onto the medical-grade casing and insert-molded the metal charging pin — taking the design to production-ready in three months.

Read the medical-grade wearable story →
Product · Patented 2004
Scraperite

A brand we manufacture end-to-end

From part to product line

Established and patented in 2004, Scraperite is a line of plastic razor blades and holders for cleaning and scraping surfaces where metal blades would cause damage. After its 2019 rebrand, Scraperite chose Alcami as its turnkey manufacturer — from CAD and mold making to production molding, packing and palletized delivery.

Read the Scraperite story →
“
Working with Alcami is a smooth experience — from engineering & design, through to molding & mass production.
Claire SouchetRegional Director · LR Paris
“
Alcami is an excellent, highly professional manufacturer for our quality plastic parts.
Noah ShepherdAdvanced Manufacturing Director, Asia-Pacific · Stanley Black & Decker
Why Alcami

Engineered to be relied on.

Cost is what brings buyers to Thailand for plastic molding manufacturing. Our own tooling shop, cleanrooms and test lab are why they stay with Alcami.

Tooling on our own floor

Mold design, CAM programming and CNC machining in-house — so a design revision is a same-week job on our own floor, not a round trip in a shipping container.

Aluminium molds as standard

Quicker tool builds, shorter cycle times and a faster first good part — with steel available when your volume demands it.

Overmolding built in

Materials combined in one molded part for sealing, soft-touch surfaces or multiple colors — removing an assembly step from your line.

Cleanroom & DI washing

Class 10,000 / ISO 7 cleanroom molding with in-house DI washing, and double-sealed Class 100 bagging or vacuum sealing.

Tested in-house

Environmental, mechanical and ESD testing plus CMM measurement — all under one roof.

One supplier, finished item

Molding, machining, assembly, packing, warehousing and transport — with certificate copies supplied for your supplier qualification file on request.

Let's build together

Ready for a plastic molding company you can rely on?

Tell us about your part and volume — we will come back with a tooling cost, a cost per part and an honest view on the right process.

Start your project →
Where we operate · Thailand

Four factories, one standard.

25yrs
Molding plastics since 2001
Thailand · HQ

Alcami Industries (Thailand)

64/189 Moo 4, Eastern Seaboard Industrial Estate, Pluakdaeng, Rayong 21140

About the Rayong plant →
Thailand

Alcami Manufacturing (Thailand)

693 Moo 10 Tha-Tum, Srimahaphote 25140, Prachinburi

About Alcami Manufacturing →
Thailand

Alcami Technology (Thailand)

693 Moo 10 Tha-Tum, Srimahaphote 25140, Prachinburi

All Alcami facilities →
Philippines

Alcami Industries (Philippines)

Lot 1-A Block 9 Millennium Drive, LISP III SEZ, San Rafael 4234, Santo Tomas, Batangas

About the Philippines plant →
Singapore · Sourcing & trading

Alcami Global Pte Ltd

100 Peck Seah Street #08-14 PS100, Singapore 079333

About the Singapore hub →
FAQ

Injection molding, answered.

Still have a question about your part or project? Ask our team →

What is plastic injection molding?

Injection molding melts plastic and injects it into a custom mold, where it cools into a single-piece part that is strong, consistent and repeatable. That repeatability is why it remains the default process for high-volume parts where tolerance and finish both matter.

Injection molding or thermoforming — which is right for my part?

As a rule of thumb, injection molding wins for small, precise parts at high volumes; thermoforming wins for larger parts and faster, cheaper tooling. We run both in-house, so we recommend the process that genuinely fits your part and volume — not just the one we would like to sell.

Why does Alcami use aluminium molds? Will they last?

We work primarily in aluminium because it gives faster mold builds, faster cycle times and easier revisions than steel. For very high volumes or abrasive-filled materials we also build in hardened and pre-hardened steel — we recommend the tooling material that fits your volume, not a default.

Can you mold in a cleanroom for medical or electronics parts?

Yes. We mold in Class 10,000 / ISO 7 cleanrooms, wash parts with ultra-pure deionized water from our in-house DI plant, and finish with double-sealed Class 100 bagging or vacuum sealing for parts that must arrive clean.

Do you offer overmolding?

Yes. Overmolding combines two or more materials in a single molded part — a seal, a soft-touch grip or a second color — which removes an assembly step and improves the finished product.

Which materials can you mold?

ABS, PS, PP, HDPE, PC, POM, PA (nylon), PMMA and TPU as standard, plus bio-based, biodegradable and recycled options. Working to a food-contact or medical spec? Send it over and we will match the material to your part.

What do you need from me to quote?

A 3D CAD file with a print sheet showing tolerances, material specification and volumes. We quote tooling and cost per part separately, so you can see where your money goes. If the design is not final, our engineers will review it for moldability before you commit to tooling.

What is your minimum order quantity (MOQ)?

MOQ is assessed per project, because the right volume for a promotional toy is not the right volume for an electronic device casing. Share your part and target volume and we will quote accordingly.

Which certifications do you hold?

We are certified to ISO 9001 (quality), ISO 14001 (environment) and ISO 22000 (food safety), and we mold in cleanroom conditions. Certificate copies are supplied for your supplier qualification file on request.

Request a quote

Tell us about your part.

Send us the part drawing and your annual volume. We will come back with a tooling cost, a cost per part and an honest view on whether injection molding is the right process for it.

We reply to quote requests within 1 business day.

Your details stay confidential.

Alcami Manufacturing Prachinburi, Thailand · loading map…
Alcami ManufacturingPrachinburi, Thailand · Open in Maps →
Factory
Industrial Park 304, Srimahaphote,
Prachinburi, Thailand
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