Blow Molding
OEM Custom

Blow Molding

With the addition of extrusion Blow Molding machines, Den Hartog Industries has expanded its capabilities. A recent expansion doubled the size of our blow molding facilities and we continue our belief in innovation, vertical integration, and customer service. Blow Molding offers the advantage of producing large volumes of high quality products at a reasonable cost. Den Hartog Industries welcomes the opportunity to quote your high-volume part and help you bring your design from concept to completion.

1-Concept and Design Proposal

Start with your own idea for a product to be produced in high volume. DHI will review your idea and offer suggestions to improve the manufacturability of your product. Using the latest design software, DHI will create part designs and/or mold designs for your review.

2-Consultation and Computer Simulation

DHI will consult with you throughout the development process and assess pricing issues, quality, and serviceability. Our engineers use state-of-the-art software to produce a computer simulation of your design. This helps ensure the design is functional and determines the best process of molding.

3-Tooling Capabilities

In-house tooling capabilities ensure that future requirements and needs, such as revisions or repairs, are met with quick response. In addition, DHI has relationships with domestic and overseas tooling vendors to meet special needs or specifications.


DHI will produce your part design utilizing the latest technology in production equipment, operated by highly qualified, well-trained employees who take pride in their work.

5-Manufacturing Services and Quality Assurance

Secondary finishing operations are available to complete your product. DHI also provides full Quality Assurance services to meet your specific audit requirements. Our Quality Assurance Department uses TQM principles to assure process control.


DHI provides indoor, climate-controlled warehousing to ensure cleanliness and quality. Our warehouse, shipping, and production staff use computerized inventory management tools.


DHI provides full transportation services utilizing our custom fleet of 18 trucks or a carrier of your choice. Our Transportation Department will effectively plan and manage your shipments.