APT Tooling and Prototype Injection Molding

Are you looking for traditional injection molded parts in higher quantities? If so, APT Mold has you covered! We can offer you very high precision parts from molds we build and maintain ourselves. The lead-times for our tooling is the best in the market, far quicker than the traditional 8-12 weeks you’d find elsewhere, and our costs just can’t be beat. We will work closely with you to determine the most applicable tooling material based upon your anticipated annual needs, then provide complete DFM recommendations to help you fine-tune your design for the most cost-effective parts possible.

What is DFM?

DFM is an acronym for “Design For Manufacturability”. What that means is that we extensively study the 3D CAD files you provide and we make sure your design can be built as you intended. We then provide you a report for each part that summarizes the part information (size, weight, material, finish, color, etc.) and addresses any concerns regarding tooling or part design. Not only that, but our DFM also includes our recommendations on how to best resolve any issues to help you revise the design if necessary. All our DFM reports are created at no cost to you.

Draft Analysis

Wall thickness Analysis

Gating Quality Prediction

What materials do you utilize for tooling?

That depends entirely on the quantity of parts needed. The higher the anticipated quantity, the harder the tool material must be to resist wear from numerous molding cycles. Although each case is unique, please refer to the table below as a starting point for what we may recommend for your particular parts:


Tool Life: 1,000-10,000 parts
Tool Material: Aluminum or S50C steel
Tool Lead Time: 1-3 weeks for general tooling (may be slightly longer for more complex tools)


Tool Life: 10,000-100,000 parts
Tool Material: P20 steel or 738H steel
Tool Lead Time: 2-4 weeks for general tooling (may be slightly longer for more complex tools)


Tool Life: 100,000-1,000,000 parts
Tool Material: NAK80 or S136 steel
Tool Lead Time: 4-6 weeks for general tooling (may be slightly longer for more complex tools)

If I need really high quantities of parts, what steps do you take to assure my parts are as inexpensive as possible?
We look at many different ways to assure the lowest cost parts possible.

  • We use well-engineered cooling systems to reduce the cycle time.
  • Where applicable, we use multi-cavity tools to meet large volume capacity and reduce part cost.
  • We often use hot tip gates, sub gates, hook gates, and automatic cutting gates to reduce labor cost.
  • We have mechanical arms and conveyor belts installed on our Injection Molding Machines to help handle the molded parts automatically and efficiently.

Multi-cavity tools with hot tip gates

Conveyor belts

Do you have limits on the types of plastics materials you can mold?

Absolutely not. We can mold anything from inexpensive commodity resins like PP, HDPE, and styrene to engineering resins like PC, POM, nylon, and TPE all the way to ultra-performance materials like PEEK, polyimide, polysulfone, PPS, and more. And if your needs include fiberglass-reinforced resins, we can accommodate those as well.

material triangle

What about colors and finishes?

The ranges of finishes we can provide are almost limitless. We routinely polish our tools so that clear parts are truly transparent and we can take that one more step if optical-quality clear parts are required. We can also chemically etch our tools to replicate a wide variety of textured finishes, including selectively textured parts where some areas are textured while other areas remain gloss or matte. As far as colors go, if you provide a color chip, we can match it in most resins. We can also utilize overmolding to achieve both functional and cosmetic improvements.

surface finish

What is overmolding?

Over-molding is a common process in injection molding for specific uses. There are three general over-molding approaches:

  • Metal part insert-molded into rigid plastic, such as brassnuts insert-molded into a plastic housing —used for screw assembling
  • Soft material over-molded onto rigid plastic, such as TPE (thermoplastic elastomer) over-mold on ABS or ABS/PC material — used for soft touch grips, switch buttons, sealing, etc.
  • Rigid plastic over-molded onto rigid plastic, such as ABS over-mold on clear Polycarbonate — used to combine opaque and transparent functions in one part.

APT Mold has experience with all three types of overmolding and we can help determine if this process is right for your particular needs.

Can you paint and print graphics on our parts?

Yes, we have full painting capabilities for those cases where molded-in color is not feasible, including the ability to mask portions of a part to create two-tone finishes. We can also add the final touch by printing graphics directly from your artwork via pad printing or screen printing onto the finished cosmetic surface, whether molded or painted. We can also include graphics by adding a separate printed label or overlay.

Sample Our Work

At  APT Mold, we have experience making highly cosmetic parts (exterior housings, lenses, etc.) as well as less visible mechanical parts (chassis, brackets, gears, etc.). We service markets ranging from industrial to home appliance, from automotive to consumer products, and from medical to scientific.

Please review the following portfolio of parts and products to see the breadth and quality of our work.

Over-molded parts

Electronic product housing
(Clear PC over-mold with ABS)
Material: PC/ABS
Finish: Glossy/Texture
Dimension(mm): 115x80x12

Sanitary product cover
(Brass nut insert-mould in plastic)
Material: ABS
Finish: Texture
Dimension(mm): 230x230x90

Air conditioner screen plate
(Nylon net mould on PP)
Material: PP
Finish: Polishing(SPI A-3)
Dimension(mm): 200x160x10

Clear parts

Housing for cosmetic
Material: PC
Finish: High polished
Dimension(mm): 67x67x28

Lighting reflector
Material: PMMA
Finish: High polished
Dimension(mm): 150x130x60

Clear cover
Material: PC
Finish: High polished
Dimension(mm): 91x95x30

Parts in a wide variety of materials

Plastic housing
Material: PC
Finish: High gloss and Painting
Dimension(mm): 160x80x50

Structure component
Material: PPS
Finish: Smooth(SPI B-1)
Dimension(mm): 60x60x50

Plastic tube
Material: HDPE
Finish: Smooth(SPI B-1)
Dimension(mm): 180x25x25

Decorated parts

Plastic cover
Material: PC
Finish: Metallic Painting
Dimension(mm): 170x140x80

Plastic shell
Material: Translucent PC
Finish: High gloss and pad printing
Dimension(mm): 160x120x50

Lighting component
Material: PC
Finish: High gloss and electroplating
Dimension(mm): 100x100x80

Technical Support

The support from APT team will help you shorten the lead time and cost saving in new product development. We will support your project design for manufacturing.

Innovative Ideas

We have innovative ideas based on design. Our manufacturing experience will help you trouble shooting and turn your idea into reality, get things done.

Advanced Technology

Our rapid prototyping technology in Computer Aided Design(CAD) and Computer Aided Manufacturing(CAM) also with experienced technician will make the parts in high quality.


Fast Response

We keep a close eyes on your every project, you will usually receive our quotation and get a reply for project within 24 hours.

What is Your Next Step?

This will guide you through our very simple quote submission process. We are excited for the chance to earn your business!