Increases Productivity in Metal Spinning Operations
Duraspin® is an advanced roller tool material with exceptionally high compressive strength and excellent wear resistance, even at high temperatures. Duraspin maintains its strength and stiffness during burnishing. Unlike other roller tool materials, Duraspin does not require water coolant. This means machinery is not exposed to liquid coolants making cleanup fast and easy.

Duraspin is ideal for hydraulic, flow forming, necking-in and pressure compensating metal spinning equipment.

Key Benefits:

• Up to 30 times longer roller tool life
• Less downtime for redressing - Increased productivity
• No lubricant or coolant is required - Lower clean-up costs
• Superior finish with minimal secondary operations

Duraspin does not require the frequent redressing that other non-metallic materials require. Other materials may require machining to smooth their surface and restore their concentricity - often several times during a single shift. This process consumes valuable production time and destroys productivity.

Duraspin is available as "close to size" blanks, reducing the cost of finish machining and minimizing material waste. Duraspin roller tools typically last 8 shifts before redressing is needed. In a roller tool life comparison (actual data supplied by US lighting manufacturer), Duraspin® had a life span of 192 hours as compared to Nylon and Acetal at 8 hours and Laminated Phenolic at 16 hours.

Case Study - Duraspin® vs. Competitive Roller Tool Materials

Cost Category	Duraspin®	Nylon	Acetal	Laminated Phenolic
a. Roller Tool Material	$1,286.00	$300.00	$320.00	$490.00
b. Fabrication Cost	125.00	125.00	125.00	125.00
c. Installation and Redressing (Labor)	35.00	35.00	35.00	35.00
d. Downtime for Installation	250.00	250.00	250.00	250.00
e. Total Installed Cost (a thru d)	$1696.00	$710.00	$730.00	$900.00
f. Relative Part Life	192 hours	8 hous	8 hours	16 hours
g. Parts Neede per Year (1,040 hrs./yr.)	6.0	130.0	130.0	65.0
Annualized Cost In Use	$10,176.00	$92,300.00	$94,900.00	$58,500.00

Machining information for successful fabrication of Quadrant EPP Duraspin
Duraspin roller tool parts perform under conditions that are normally considered too harsh for thermoplastic materials. With a Continuous Use Temperature (CUT) of 450°F, Duraspin maintains superior strength and stiffness at elevated temperatures.

Duraspin is machined using techniques similar to those used for metals. However, because Duraspin is very abrasive to standard and high speed tools, it is recommended that carbide tipped tools or, preferably diamond tipped insert cutting tools are used. Diamond tipped tools typically outlast carbide tools and provide an economic advantage.

When machining Duraspin® roller tools remember...

• Thermal expansion is approximately 3 times greater than steel
• Plastics lose heat much more slowly than metals
• Plastics operating temperatures are typically much lower than metals
• Plastics are much more elastic than metals

Because of plastic's inherent differences, you may wish to experiment with tool materials, angles, speeds and feeds to obtain optimum results.

Other Machining Tips Thin sections and sharp corners must be worked with care to prevent breakage and chipping Positive tool geometries with ground peripheries are recommended Carbide or diamon-tipped tooling with polished top surfaces should be used Use adequate chip clearances to prevent clogging Properly support the material to prevent it from springing away from the cutting tool	Turning Depth of Cut Speed Ft./Min. Feed In./Rev. .025" in deep cut 300-800 .004-.025 When cutting off, it may be necessary to chamfer the ID before cutting to prevent the material from chipping out.
Coolants Coolants are typically not required, but may be used for optimum finishes or close tolerances If coolants are used, a pray mist of water soluble oil is recommended Pressurized air or vacuum is commonly used for chip removal and as a light coolant	Drilling Nominal Hole Diameter Feed In./Rev. .062" .125" .250" .500" .750" 1.00" 1.50" 2.00" and greater .007-.015 .007-.015 .007-.015 .015-.025 .015-.025 .020-.050 .020-.050 .020-.050