920 74th Street
Byron Center, MI 49315 US

Inglass U.S.A.


A Message from HRSflow

Company Profile

HRSflow, a division of INglass S.p.A., is a global company that designs and manufactures hot runner systems for all markets in plastic injection molding.

Your reliable partner for all your challenging applications

HRSflow designs and manufactures innovative hot runner systems for the injection molding industry which are used for demanding applications in the automotive, domestic appliances, technical applications, houseware, logistics & environmental segments.

FLEXflow Family: The Electrical Future You Would Never Have Expected

The electrical world at a glance: simple, safe and clean The future has arrived and it is electric.

As Seen In MoldMaking Technology

Workflow and Quality Count
A recent visit to a hot runner systems and solutions provider proved the importance of workflow and quality to a production facility’s layout.

Partnership Advances Process Control Using In-Mold Sensors
RJG and HRSflow have partnered up to provide an advanced process control solution, specifically for servo valve gate technology or independent cavity control.

K Show Report: Next-Level Efficiency and Control
With a show as big as K 2019 with more than 3,000 exhibitors from 63 nations, you may think that identifying a theme among all the technology would be difficult, but after all is said and done, two words come to mind: efficiency and control.

automotive mold

How to Better Balance Family Molds
A servo-driven valve gate can provide superior processing for family molds with significant variances in part sizes and volumes.

2018 Technology Review and Sourcing Guide: Hot Runners
MoldMaking Technology’s annual Technology Review and Sourcing Guide is an accurate, comprehensive, easy-to-read and easy-to-use use guide for researching today’s technology, equipment, products and services. The year’s latest moldmaking product developments within mold engineering/design, build and maintenance/repair are broken down into 10 sections, including hot runners.

Servo-Driven Valve-Gate System Increases Flexibility of Flow Control
HRSflow features Flexflow and Flexflow One at NPE2018. The company also has its technology featured in several exhibitor booths.

HEM Miniature Hydraulics

Technology Showcase, Hot Runners and Mold Components
Take a look at this week's slideshow to see products that make building and/or maintaining molds more efficient and cost-effective.

valve gate system

Improving Sequential Molding
For large injection-molded parts, a servo-driven valve gate system can improve surface finish and part performance.

Proving the Advantages of a Servo-Driven Valve Gate System
One innovation for improving sequential injection molding centers around the use of servomotor technology.New servo-driven valve gate systems incorporate a toggle-type mechanism that operates the valve pin position at 90 degrees from the servomotor stroke.

emerald hot runner

Slideshow: Hot Runner Technology
Check out a few of the latest products in hot runner technology.

thermal analysis of 32 drop system

Energy Savings in Multi-Cavity Molds
Simplifying maintenance and energy savings in the development of hot runner systems for multi-cavity molds for medical applications.

Product Categories of HRSflow

Hot Halves
Hydraulic Valve Gate Nozzles
Pneumatic Valve Gate Nozzles
Servo Valve Gate Nozzles
Temperature Controls, Monitors, Sensors
Thermal Hot Tip Nozzles
Valve Gate Controllers
Valve Gate Sequencers