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UK Mainland (excluding Scottish Highlands & Islands)
All orders over £50 (before vat) are Free Delivery
All orders under £50 (before vat) are at £5.95 (+ vat)
Pre 12pm next day £9.95 (+ vat)
Pre 12pm Saturday Morning £19.95 (+ vat)
(Orders need to be received by 2pm
for next day & pre 12 deliveries)
Scottish Highlands & Islands (Ex Shetland)
All deliveries would be £20 (+ vat)
All deliveries would be £25 (+ vat)
Isle of Wight
All deliveries would be £10 (+ vat)
Isles of Scilly
All deliveries would be £20 (+ vat)
Isle of Mann, Jersey & Guernsey
All deliveries would be £20 (+ vat)
Southern Ireland & Shetland
Please contact us here or call us on 0114 256 0889
Rest of the World
Please contact us here
Spend £50 or More (excluding VAT)
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Get a Nice 5% Discount
Spend £250 or More (excluding VAT)
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- Delrin Rod
Please select the Length you require
- Our price is for the total amount of pieces your entire order needs to be cut into:
- Buy 1 sheet/rod and have it cut into 15 pieces = £10
- Buy 3 sheets/rods and have each one cut into say 5 pieces (total = 15 pieces) = £10
What to do:
- Click the "Cutting" tab in our menu to visit the cutting section (if you're not already there)
- Click the "Buy Now" button of whichever quantity corresponds to your needs
- See bottom of this page, on how to advise your sizes and any notes
Want more than 300 pieces?
- Please give our sales team a call on 0114 2560889
- Please allow at least 4mm in your cutting allowance calculations for the width of the saw cut
- We use table saws and horizontal band-saws, so edges will have a sawn finish
- We only use sawing equipment, so we are unable to offer high precision items
- Tolerances are +2mm to minus 0mm
- We aim to cut as squarely as possible although incoming materials are sometimes out of square
- We are unable to cut or machine shapes but we are happy to obtain a custom quotation for machined
shapes or parts (please call us on 0114 2560889)
How to advise your sizes:
- Please checkout your basket/cart
- Fill in your details as usual on the checkout page
- At section 5 of our checkout page, there's a "customer notes" box for you
- Please enter your sizes and any notes for us there
Delrin Rod Tolerances
Manufacturers produce engineering plastics that are slightly oversize in either diameter and/or thickness.
This oversize tolerance, which is listed in the tables below, is provided to assist customers to produce
very accurate items within the size shown and remove any minor surface imperfection.
What is Delrin Rod?
This is the "Homo-Polymer" grade of Acetal and Delrin® is DuPont’s trade name for it. It has excellent load-bearing qualities in both tension and compression. It will absorb minimal amount of moisture and are resistant to a wide range of solvents. The service temperature range is -29º to 85º C, intermittent at 93.3º C. It has high yield strength at elevated temperatures. Properties include low friction (very slippy), high wear resistance and ease of fabrication.
What are the advantages of Delrin Rod?
Good abrasion resistance
Good mechanical strength
Low coefficient of friction
Pretty good heat resistance
Good electrical and dielectric properties
Low water absorption
What are the disadvantages of Delrin Rod?
Susceptible to being attacked by both strong acids and oxidizing agents
Is not readily available in a flame-retardant grade
Typically very difficult to bond
How does Delrin Rod perform?
Delrin® offers high tensile strength, stiffness, and creep resistance, and significantly outperforms many other polymers on impact resistance, allowing for thinner and lighter part design. In addition it offers outstanding low and high temperature performance, good colour ability, and good mating with metal and other polymers. It provides dimensional stability in high precision moulding and flexibility of design.
What is Delrin Rod used for?
Typical applications include high performance engineering components (e.g. gear wheels, ski bindings, fasteners, crash pegs on motorcycles). It is also widely used in the automotive and consumer electronics industry.
What are Delrin Rod applications?
Mechanical gears, slide-ways and guiding elements, housing parts, screws, nuts, fan wheels, pump parts, valve bodies.
Electrical Engineering: insulators, bobbins, connectors, parts for electronic devices etc.
Vehicle: Fuel sender unit, Light stock (including shifter for light, turn signal), power windows, door lock systems, articulated shells.
Medical: insulin pen, Metered dose inhalers (MDI)
Furniture: hardware, locks, handles, hinges.
Construction: Structural Glass - pod holder for point
Packaging: aerosol cans, vehicle tanks.
What is Delrin Rod not suitable for?
In areas where very high wear is needed, it has very good resistance but there are better materials such as Nylon and UHMWPE. Areas where strong chemicals are around, this may be the job of its close relative The Co-Polymer Acetal.
What are Delrin Rod's machining characteristics?
Delrin® rod is excellent for machining using traditional methods such as turning, milling, drilling etc. The material is free-cutting, but does require sharp tools with a high clearance angle. It usually leaves little or no burrs. The use of soluble cutting lubricant is not necessary, but is recommended. Because the material lacks the rigidity of most metals, care should be taken to use light clamping forces and sufficient support for the work piece.
Machined Delrin® can be dimensionally unstable in comparison with metals, especially with parts that have large variations in wall thicknesses. It is recommended that such features are ‘designed-out’ e.g. by adding fillets or strengthening ribs. Annealing of pre-machined parts before final finishing is an alternative. A rule-of-thumb is that in general, small components machined in Delrin ® suffer from less warping.
Can Delrin Rod be Glued and bonded?
Delrin ® is typically very difficult to bond. Special processes and treatments have been developed to improve bonding. Typically these processes involve surface etching, flame treatment or mechanical abrasion. Typical etching processes involve chromic acid at elevated temperatures. Once the surface is prepared, a number of adhesives can be used for bonding. These include epoxies, polyurethanes, and cyanoacrylates.
Epoxies have shown 150-500 psi shear strength on mechanically abraded surfaces and 500-1000 psi on chemically treated surfaces. Cyanoacrylates are useful for bonding to metal, leather, rubber and other plastics. Solvent welding is typically unsuccessful on it, this is due to its excellent solvent resistance.
Is Delrin Rod suitable for food applications?
Delrin® can be used to replace metal in automated food processing equipment, with the potential to produce lighter, lower-cost and corrosion-resistant components. Its low-friction properties make it an ideal material for improving the speed at which high-adhesion foods can be fed through a processor. It meets the U.S. FDA standards, is USDA approved, and is not UV stabilized.
What is Delrin Rod's wear resistance?
Delrin ® combines lubricity and wear resistance with the stiffness and strength needed in parts designed to replace most metal parts.
What is Delrin Rod's chemical resistance?
Acetal resins are sensitive to acid hydrolysis and oxidation by agents such as mineral acids and chlorine. Delrin ® is also susceptible to alkaline attack and is more susceptible to degradation in hot water. Thus low levels of chlorine in potable water supplies (1–3 ppm) can be sufficient to cause stress corrosion cracking to develop, a problem which has been experienced in both the USA and Europe in domestic and commercial water supply systems.
Does Delrin Rod have other trade names?
Ticona Hostaform, Celcon ®
What are Delrin Rod's size range, colours, and availability?
Delrin ® is naturally opaque white, due to its high crystalline composition, but it is also available in black. Rods are available in diameters ranging from 10mm to 200mm.
Why should you choose Delrin Rod?
Its a high performance, easily machine-able engineering plastic. Because of its high strength, slippery-ness and resistance to impact and fatigue, it is much more economical and easier to machine than most metals .
Why not to choose Delrin Rod?
Delrin ® has been approved for some food applications, but it is not a suitable choice for food storage as it is easily attacked by acidic foods.
Is there a summary of Delrin Rod?
Basically there are two types of Acetal, Co-Polymer grade and Homo-Polymer grade. Delrin ® rod is the name usually given to the homo-polymer grade. Both grades are incredibly similar but have a few differences. Homo-polymer grade is generally used for more "mechanical/strength" applications, Co-Polymer grade works best in "chemical" applications. They are both engineering thermoplastics used in precision parts requiring high stiffness, low friction and excellent dimensional stability. Typical applications for injection-moulding include high performance engineering components such as small gear wheels, ski bindings, fasteners, knife handles, and automotive lock systems. This material is widely used in the automotive and consumer electronics industry. From auto parts to innovative new medical devices as well as most industrial solutions.