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Ensinger

Solutions To Today's Engineering Problems - Part 3

Parts machined from engineering plastics can replace steel, malleable iron, aluminum, brass, stainless steel, rubber and urethane in machinery.

Ensinger offers a wide selection of engineering plastics in rod and slab shapes. Parts machined from these plastics can replace steel, malleable iron, aluminum, brass, stainless steel, rubber and urethane in machinery and plant process equipment.

Compared with the materials they replace, these parts can offer:

Noise reduction
Low / no maintenance
No process contamination -- no lubrication required
Increased process equipment reliability
Increased plan productivity -- lighter parts can be moved more rapidly
Cost savings -- low machining costs and short lead time

Machining plastic is a good choice for:

Large or thick section parts that can be molded
Intricate or close-tolerance parts
Small quantity applications
Prototype parts to test a design concept
Short lead time

Manufacturers are using engineering polymers today, instead of metal, to gain important competitive advantages. Selecting the best material for a specific use from Ensinger's full line of engineering polymers isn't difficult. All you need is some general information about operating conditions, such as temperature extremes, and impact loading. With these facts in hand, you can match your intended use with the drawing below and determine which of Ensinger's materials is most likely to give you the best performance. Your local Laird Plastics representatives are always ready to provide additional recommendations and engineering data as needed.

16. Application: Pneumatic Cylinder

Material Replaced: Steel, Aluminum
Material used: DELRIN®
Benefits:

Increased reliability -- dent resistant plastic
Flexibility -- tailored sizes can be machined out of plastic, limited selection in metal
Cost savings
Weight savings

Needs: Tensile strength, impact resistance, wear resistance

17. Application: Safety Window

Material Replaced: Tempered Glass
Material Used: TECANAT™
Benefits:

Less maintenance -- ease of installing (routing holes, drilling, etc.) as compared to glass
Meets OSHA safety standards -- increased protection due to much better impact strength

Needs: Impact strength, clarity

18. Application: Holding Bearing For Conveyer Chain

Material Replaced: Steel, Bronze
Material used: DELRIN®
Benefits:

Ease of machining -- time and cost savings
Lower maintenance -- corrosion resistant plastic replaces corrosion prone steel
Light weight

Needs: Tensile strength, durability, wear resistance

19. Application: Wear Guide

Material Replaced: UHMW
Material Used: DELRIN®
Benefits:

Improved heat resistance
Low friction
Wear resistance

Needs: No warpage from steam cleaning

20. Application: Pneumatic Cylinder

Material Replaced: Steel, Aluminum
Material used: DELRIN®
Benefits:

Increased reliability -- dent resistant plastic
Flexibility -- tailored sizes can be machined out of plastic, limited selection in metal
Cost savings
Weight savings

Needs: Tensile strength, impact resistance, wear resistance

21. Application: Conveyer Rollers

Material Replaced: Steel, Aluminum, Rubber
Material Used: TACAMID™ 6/6 Nylon
Benefits:

Lower maintenance -- more durability and scratch resistant
Less noise

Needs: Wear resistance, lubricity

PRODUCT PROFILES

TECAMID™ Nylon

The industrial standard for machined plastic. High strength and toughness combined with high temperature properties and excellent resistance to grease, oil and solvents.

Primary Applications:

Gears
Seals
Wear plates
Timing screws
Washers
Bushings
Bearings

Grades Available:

Tecamid™ 6/6 -- standard grade
Tecamid™ 6/12 -- low moisture absorption
Tecamid™ ST801
Tecamid™ 6/6 MDS -- low surface friction, enhanced lubricity

Chemical Resistance

Aliphatic, Aromatic Hydrocarbons -- excellent (fuels, oils, solvents)
Organic compounds -- excellent (ketones, esters, aldehydes)
Partially halogenated hydrocarbons -- good to poor (methylene chloride, chloroform)

Physical Properties:
Service Temperature 250°F

Coefficient of friction:

Tecamid™ 6/6 on Tecamid&trade 6/6 -- Static-0.36, Dynamic-0.11
Tecamid™ 6/6 on steel -- Static-0.31, Dynamic-0.17

Other Physical Properties:

High wear resistance
High tensile strength
FDA approved grades

TECANAT™
TECANAT™ GF20

An unfilled machine grade polycarbonate. GF20 is a 20% glass filled polycarbonate. It has very high impact strength, and excellent clarity and tensile properties.

Primary Applications: