full screen background image

Global Experts in Processing Ultra-High Performance Polymers
from Manufacturing Materials to Fabrication

普通话

FAQs

Stock Shapes for Machining

The stock shapes segment of the plastics industry is a lesser known segment of the plastics industry which is dominated by large companies molding typically low-cost polymers such as polyethylene, polypropylene, ABS, PVC and others. Higher performance polymers solve many design challenges that do not have the volume to justify expensive tooling needed to economically produce very large quantities of parts. Soon after these engineering-oriented polymers were introduced the stock shapes followed by making extruded rods, plates and tubes available for parts that were more economical as machined components.

Not only are parts machined from an extruded shape more economical in smaller series and faster in delivery, the performance of parts in service is likely to be better. The process of selecting materials and processes for high performance parts should always consider machining from extruded shapes.

From our early beginnings in 1996, Drake developed a reputation for being a global leader in extruding the most difficult to process polymers into shapes for those machining high performance polymer parts.

Reinforcing this reputation we:

• Preserve properties made possible by the resin supplier thus maximizing product performance
• Provide Batch (resin, lot) and Run traceability on every shape
• Run every product in single piece tooling minimizing piece to piece and lot to lot variation
• Identify each shapes extrusion direction to help machining consistency
• Every shape is annealed or in the case of Torlon® cured using a cycle developed for that shape

We extrude and stock:

• 10 grades of Torlon, the highest performance melt processable thermoplastic
• 8 grades of PEEK, one of the most durable materials with superior chemical and heat resistance
• 3 grades of AvaSpire, offering optimal performance in a tight temperature range
• Ryton R4, 40% glass reinforced PPS the original high temperature, high strength thermoplastic
• 2 grades of Ultem PEI

Today’s size capability ranges from:

• Rod: 1.27 to 257 mm diameter
• Plate: 3.2 to 44.5 mm thick plate in both 102 and 305 mm widths
• Seamless Tube: 25.4 OD x 12.7 mm ID to 194 OD x 89 mm ID



If you are looking for a size or product outside that range, or one you don’t see, just ask.

Every size in every quality was made because a customer needed it.