Injection Molding
In injection molding, material is fed through a hopper into a barrel where a reciprocating screw mixes and melts the material then injects it into a mold.
Narrow Your Injection Molding Search
ESSENTIAL READING
VIEW ALL
AIM Institute Continues to Grow Plastics Education and Training on 10th Anniversary
The AIM institute was created in response to the rising need for skilled injection molding professionals, providing individuals with a fundamental understanding of plastic rheology and plastic flow through a mold.
Read More
Bulk, Solid and Melt Density: How to Calculate These Values and Why They Matter — Part 2 of 2
Understanding and calculating solid density and melt density will help molders with everything from material and machine selection to determining piece part costs.
Read More
Process Monitoring or Production Monitoring — Why Not Both?
Molders looking to both monitor an injection molding process effectively and manage production can definitely do both with tools available today, but the question is how best to tackle these twin challenges.
Read More
Optimizing Pack & Hold Times for Hot-Runner & Valve-Gated Molds
Using scientific procedures will help you put an end to all that time-consuming trial and error. Part 1 of 2.
Read More
A Systematic Approach to Process Development
The path to a no-baby-sitting injection molding process is paved with data and can be found by following certain steps.
Read More
Three Key Decisions for an Optimal Ejection System
When determining the best ejection option for a tool, molders must consider the ejector’s surface area, location and style.
Read MoreLatest Injection Molding News And Updates
Husky Expands Facilities and Services in India
The company says its expanded presence in India helps clients meet the country’s sustainability mandates — which require 30% recycled plastic content in packaging by 2026 and 60% by 2029.
Read More
Engel Opens Injection Molding Machine Manufacturing Plant in Mexico
With a capacity to produce between 180 and 200 injection molding machines per year, Engel has inaugurated its first production plant on the North American continent. This long-term project will expand in phases to offer vertical integration in manufacturing, automation and a solutions center.
Read More
Sumitomo (SHI) Demag North America Names New Executive Leadership
The company has appointed Liam Burns to serve as president and John F. Martich III to serve in the expanded role of chief operating officer.
Read More
AIM Institute Continues to Grow Plastics Education and Training on 10th Anniversary
The AIM institute was created in response to the rising need for skilled injection molding professionals, providing individuals with a fundamental understanding of plastic rheology and plastic flow through a mold.
Read More
LSR Molding Dosing System Designed for Precision, Efficiency and Compliance
The system offers a variety of features to successfully produce high-quality silicone parts with the most economic use of material, space, working time and energy.
Read More
All-Electric Injection Machines Enable More Sustainable, Energy-Efficient Processing
Stork’s all-electric injection molding machines include a breaking energy feedback system in which recovered energy can be fed back into the customer energy grid.
Read More
Featured Posts
5 Trends in 3D Printed Injection Mold Tooling
3D printing has moved beyond conformal cooling, and is now being applied to injection molds more broadly. Observations on additively manufactured mold tooling from the Plastics Technology Expo — PTXPO 2025.
Watch
PTXPO Recap: Lightweighting with Foaming Technologies
Check out what you missed on the PTXPO show floor. Foaming technologies have long offered molders a way to reduce part weight, but a new approach demonstrated by Engel and Moxietec takes it further.
Watch
Moving Beyond the Relative Viscosity Curve — Determining Optimum Plastic Flow Rates: Part 1
Should injection molders consider using a range of plastic flow rates, versus the selection of one plastic flow rate from the relative viscosity curve?
Read More
Looking to Run More Regrind? PTXPO Workshop Tackles How
When it comes to making injection molding operations more sustainable, the lowest hanging fruit is the use of regrind, but that doesn’t mean it’s not without challenges.
Read More
Molding Machine Maintenance Matters
At PTXPO 2025, a focused workshop featuring industry experts will share best practices in molding machine maintenance.
Read More
Take Top Shops 2025 Injection Molding Survey Today
The Top Shops injection molding benchmarking survey could help you replace “I think,” “It seems,” or “I’d guess” with “I know” when it comes to how your operation stacks up with the competition.
Read MoreFAQ: Injection Molding
Plastic injection molding is a cyclical manufacturing process that allows for cost-efficient production of a mass number of identical parts made from either thermoplastic or thermoset materials.
Cushion values in injection molding ultimately are an indication of a part’s quality, especially its dimensions. A consistent cushion will create consistent part dimensions.
It is important to determine which type of bubble your part has, and what the root cause might be. Determining bubble type will allow you to pinpoint the source and determine your next course of action to eliminate the problem.
Most molders are still relying on “general-purpose” screw designs that go back 30 years. With all of the technical improvements that have been made on machines over that time, nothing has been done to improve melt uniformity. We still use “general-purpose” (GP) screws, which well-known screw designer Bob Dray wisely has called “no-purpose” screws. That is they do not melt plastic uniformly. Processing with a uniformly melted plastic would seem like a high priority, but it has seen little if any attention.
Injection Molding Supplier Categories
- Thermoformers
- Injection Molding Machines
- Platens
- Thermoforming Molds
- Extrusion Blow Molding Machines
- Pre-expanders, Polystyrene Bead
- Trimmers, Deflashers for Blow Molding
- Stretch-Blow Molding Machines
- Nonferrous Metals for Molds
- Mold/Die Management Systems
- Injection Molds
- Mold Steels
- Injection Blow Molding Machines
- Dip-Blow or Compression-blow Molding Machines
- Cutting, Stamping, Trimming Dies
- Quick-mold-change Equipment
- Mold Making and Repair Equipment
- Injection Molding Nozzles
- Parison Programmers
- Mold Components
- Injection Blow Molds
- Presses, Polystyrene Bead
- Spray Coating Systems (for Bottles)
- Rotational Molds
- Inserts
- Accumulators (Melt)
- Structural Foam Machines (for Thermoplastics)
- Injection Molding Non-return Valves
- Mold Evacuation Systems
- Mold Grease
- Rotational Molding Machines
- Compression/Transfer Molds
- Mold-cleaning and Maintenance Chemicals
- Nonmetallic Tooling Materials
- Hot Runner Components
- Foam Molds
- Compression/Transfer Presses
- Prototype Molds