Quality Plastics NZ is pleased to offer design and engineering assistance for our plastic injection molding services, to ensure your finished custom injection mold is exactly what you need. Our project management team is happy to join your product development initiatives at any point in the process, which can supplement your in-house staff and accelerate parts production.

Custom Plastic Injection Molding

Quality Plastics NZ is equipped to provide cost projections for custom injection molding and other tooling, production inventory management and related services.

The earlier you invite our team into your plastic injection molding process, the more we we’ll have to offer. Allow us to participate in your custom plastic injection molding design phase, so we can provide innovative recommendations. Our requirements survey extends much farther than the custom injection mold’s intent, as we study its longevity, durability requirements and production considerations. This includes projected volumes, product performance and any supplementary operations to be handled at our facility or down the line in the future.

Value Added Services

Unlike other plastic injection molding companies, Quality Plastics NZ offers a number of secondary operations, serving as a comprehensive manufacturing resource. Our in-line post molding operations provide cost-effective part production by reducing or even eliminating labor and additional handling at your facilities. Capabilities range from a simple decoration of a part, to complete fulfillment and Just-In-Time delivery of fully assembled products in their final packaging.

During the consultation phase of your plastic injection molding project, we will present value-added service options:


  • Adhesive Bonding
  • Sonic Welding
  • Metal Insertion
  • Heat Sealing
  • Heat Staking
  • Other

Learn about Assembly


  • Drilling
  • Reaming
  • Tapping
  • Boring
  • Counterboring
  • Countersinking

Learn more about Machining


  • Bulk/Layered
  • Kitted
  • Case/Over pack
  • Individual
  • Blister
  • Labeling/Bar Code

Learn more about Packaging

Custom Plastic Injection Molding

Plastic Injection Molding

Our custom plastic injection molding company has the capacity to meet all of your unique project specifications. We have a wide-variety of molding machines, ranging from 35 to 400 ton capacity and up to 35 ounce shot size. Quality Plastics NZ is pleased to offer a 24/7 production capacity, coupled with mold and machinery preventative maintenance programs, to ensure production availability and on-time delivery.

Our Injection Molding Equipment ranging from 90 ton to 365 ton:
(1) Toshiba ISG 90, 90 ton clamp, 3 ounce shot capacity
(1) Milacron VV55, 55 ton clamp, 4.4 ounce shot capacity
(1) Kawaguchi K-180-I, 180* ton clamp, 13 ounce shot capacity
(1) Kawaguchi KS-200, 200* ton clamp, 12 ounce shot capacity

(1) Toyo TM – 200G2, 200* ton clamp, 13 ounce shot capacity
(1) Kawaguchi JEKS-265, 265* ton clamp, 20 ounce shot capacity
(1) Kawaguchi K-265-I, 265* ton clamp, 24 ounce shot capacity
(1) Kawaguchi JEKS-365, 365* ton clamp, 35 ounce shot capacity
* indicates Metric Tons

Additionally, we have the full spectrum of equipment for materials handling, process support, parts/product handling and warehousing.

When searching for plastic injection molding manufacturers, choose a company that has the capacity to get the job done right. You can count on Quality Plastics NZ to produce a top notch product at a cost-effective price. Call us today at (626) 289-9248.