Caps Injection Mold

If you have your own injection molding machine and prefer a cap injection mold to manufacture your own caps instead of buying finished caps, we are happy to make the new mold for you. Almost all plastic caps we are selling on our site, the molds were made by ourselves. The caps mold we are good at include flip top cap, shampoo flip cap, condiments cap, disc top cap, plain screw cap, jar lid, child-resistant cap, tamper proof cap, pull-push cap, theft-proofing cap, easy tear cap, 5 gallon barrel cap, laundry detergent cap, essential oil cap, cooking oil bottle cap, wet tissue cap and more custom caps.

Flip top

Shampoo flip


Disc top

Plain screw

Twist Cap

Jar Lid


Tamper Proof


Barrel use

Easy tear

Let’s walk through the process:

Basic Information Required

First of all, we need basic information of cap and your injection molding machine.

  • usage
  • neck size
  • weight
  • dimension (better provide us your bottle neck information)
  • sample (or photo at least)
  • injection machine injection weight & tie bar distance

If you don’t have an idea, we will discuss your needs, purpose and objective thoroughly and provide a concept that will satisfy your situation. We will work with you from the ground up.

  • Note: To get a quick quote, please fill out our Custom Cap Form as bottom

Cap Design

The next step is to take the basic or idea and workup both 2D and 3D drawing detailing all the features. Following the drawings we then digitize the new cap and render it out for a very close approximation of what the final cap will look like. This is where it really starts to come to life.

3D Print Sample Support

If you still got worries about 2D & 3D drawings, we can provide a 3D print sample and send to you via express, so that you can have a closer look of the final design and to ensure you will make the correct cap & mold.

Mold Design

After you confirm the cap drawing, we start make mold design based on the cap structure & your injection molding machine parameters.

Mold Manufacturing

Next, we start the mold manufacturing. Every detail will be strictly stick to the drawings.

Mold Trial

Usually we will do twice mold trial at least. At T0 (first time) trial the main purpose is to test mold movement, parts matching situation and tolerance. At T1 trial, we will keep mold continuous running for 4 hours at least, to make sure everything works properly. If testing works well, we will do the lettering (such as recycling symbol, your LOGO) to the mold and send you real samples for final confirmation. This is where your ideal cap becomes a reality.

Water Leakage Testing

This is a very import process, we will get every cap made from every cavity of mold well tested with Vacuum Leakage Testing, to 100% ensure you will get the perfect caps.

Mold Delivery Or Mass Production

The last step is deliver the mold to you. We can provide both of air & sea shipment with economical cost. Or if you want the caps only, we can do the mass production for you.

01  Information Collection

02  Cap Design

03  Mold Design

04  Mold Trial

05  Water Leakage Tesing

Basic Technical Specifications

About this Product

Bottle Caps Injection Mold


Mold Cavity Steel:

H13, S136, 718

Mold Core Steel:

H13, S136, 718

Mold Frame:

LKM standard frame

Cavity Number:

according to cap design & your injection machine

Runner System:

Hot runner / Cold runner

Hot runner Brand:

standard is local brand and YUDO

Cooling System:

best cooling water way design, BeCu available as per need

Demould Way:

motor rotating, eject pins, slider, push platen ,air gate or force as per design

Mold Life:

1 to 3 million shots guarantee, depends on mold steel chosen

Delivery Time:

20 to 70 days as per cap design

Advanced Mold Design

This video shows an Advanced Design flip top cap mold we made for our France customer.

The feature is:

Close the cap inside mold while mold running, instead of close it with another machine or manually.

At NABO company, we take pride in serving our customer with most the most advanced processing technology.

To watch more video of our cap molds running, visit our

We believe in making quality molds

Get a Quick Quote!

Please fill below form as detailed as possible, it will be great helpful for us to provide you a quick quote!

  1. The below information with * is required.
  2. If you fill out all information as listed below, you will get a quick quotation in one hour!

    Required information of Cap
    *Usage or Cap Type

    Gram Weight

    Output Required

    *Your Injection Machine Tonnage


    It will be much helpful if you already have a drawing / photo / file of the cap, or file of your Injection Molding Machine technical specifications.

    More to share?

    *Your Name

    Phone Number

    *Your Email