Quality Mold Shop, Inc.

Quality Mold Shop, Inc http://www.quality-mold.com/ 931-668-3876Quality Mold Shop, Inc http://www.quality-mold.com/ 931-668-3876

Quality Mold Shops’ injection molding service o�ers a full range of custom prototypes and low-volume production parts from standard and

engineering-grade thermoplastic, lwith a quick turn around time. Injection molding is often used for prototyping, short-run manufacturing up to 10,000+

plastic parts and bridge tooling before customers move to large-scale manufacturing.

By using advanced aluminum alloy molds, we’re able to eliminate the costly and time-consuming custom desing intent modi�cations that normally goes into the

development of injection-mold tooling. Quality Mold Shop supports an ever-increasing maximum part size and complexity, and continues to introduce

new injection-molding processes that help designers and engineers make better products.

Design Considerations*

Size.

Materials.

Draft.

Surface Finishes.

Tolerances.

Contact QMS Engineering for product parameters

Quality Mold Shop stocks hundreds of thermoplastic resins that offer a variety of benefits for different applications and industries. Metal and liquid silicone rubberprovide additional material options. Here are some of our more frequently used injection-molding materials:

• ABS• Acetal• Acrylic• HDPE• LDPE

A taper applied to the faces of the part that prevent them from being parallel to the motion of the mold opening is called draft. This keeps the part from being damaged due to scraping as the part is ejected out of the mold. Recommended draft: • 0.5 degrees on all vertical faces is strongly advised. • Typically, 1 degree of draft per cavity depth, but 2 degrees of draft works in most situations. • 3 degrees is minimum for a shutoff (metal sliding on metal). • 3 degrees is required for light texture (PM-T1). • 5 or more degrees is required for heavy texture (PM-T2).

A number of standard finishes are available for injection moldedparts at Quality Mold Shop. Our current finishes include non-cosmetic and low cosmeticfinishes; bead-blast texturing; and up to SPI-A2 mold polishing.

Typically, tolerances of +/- 0.003 in. Utalizing good design and tooling principles.

• PBT• Polycarbonate• Polypropylene• TPE• TPU

• PEI• Nylon

Wall Thickness. With injection-molded parts, observing proper (and uniform)wall thickness helps parts avoid potential issues such as sink marks and warpage.Recommended thicknesses vary by material (ranging from 0.040 in. to 0.150 in.) andcan be found online at quality-mold.com.

Quality Mold Shop, Inc http://www.quality-mold.com/ 931-668-3876

Questions?A manufacturing specialist is available at 931-668-3876 to discuss any questions you might have regarding your design and our processes. Learn more about our manufacturing service at http://www.quality-mold.com/