Injection Screw Tips

Injection Screw Tips

Don't throw away an old injection molding screw tip just because all the chrome has been burnt off! We can offer injection screw tip repair with a six month warranty and save you over 50% from buying new. All of our injection screw tip repair comes with a 3, 6 or 9 month warranty. Better than what you'll get from the OEM or any other repair company.

All of our injection screw tip assembly repairs are done to exceed OEM specs/tolerances for plating thickness, porosity, polish finish etc. Your repaired injection screw tip will out perform and even outlast a brand new screw tip from the factory.

Do you need injection screw tip repair or plating, cleaning, polishing?

Please fill out the form below and an experienced injection molding tech will call you in a few minutes to answer all of your questions & give you prices/delivery times on your project. Email us This email address is being protected from spambots. You need JavaScript enabled to view it.

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Describe in detail the issues of why your sheet die needs repair? Die lines, adhesion, chips in plating, be specific. Have you disassembled or cleaned the die yet?


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Mitchell Precision will NEVER share or sell your contact information with anyone. All information and communications are strictly confidential. You will never get unsolicited calls or emails from us or any of our partners. We take privacy very seriously.

What will it cost for injection screw tip repair? Typical cost is approximately 40 to 80% the cost of new. The cost is determined by the amount of work needed. Call us with the OD of your injection screw, the length of the tip and let us know how badly it's worn. Does it need welding? Are there deep pits and scars? Is it just the chrome has peeled off and now plastic sticks? Our plastic equipment technician can give you a price right over the phone and follow up with email and fax. Email us photos at This email address is being protected from spambots. You need JavaScript enabled to view it.

 

Mitchell Precision has an advantage over other repair companies. All CNC machining, OD grinding, hard chrome plating, electroless nickel, thermal spray, polishing, buffing etc. Is done in house by our employees. No subcontractors means lower pricing and faster delivery. We can repair your screw tip faster than any other company with complete ability to repair all injection molding equipment used in your plant.

 

How long does injection screw tip repair take?

If it requires stripping and welding, 7 to 10 days. If it does not require stripping or welding, it can be done in 3 to 5 days.

 

Injection screw tip repair procedure:

1: Strip all old chrome

2: Inspect surface for any deep pits or scars, check with dye penetrant for any pits, cracks and repair as needed.

3: Weld blemishes or damage and blend in 100% using high speed air tools or belt sanding

4: Belt sand and polish to a 5rms mirror finish

5: Chrome plate or electroless nickel plate tip Military Spec QQC-320B & Military Spec Mil-C-26074B Class A Grade 1
5A: For harsh environments or for the longest lasting coating available, consider CEB coatings. (Chrome over Electroless nickel, Baked at 475 for 3 to 5 hours). We’ll give a one year warranty with CEB coatings regardless if you’re running, regrind, glass, PVC or other harsh materials.

6: Inspect all plating to be free of pits, zits, imperfections, etc.

7: Final buff and polish to 3RMS finish or better

8: Prep for packaging and UPS/FedEx delivery

 

Injection screw tip repair for longer life! Industrial hard chrome is the standard coating for all injection screw tips. Yet harsh plastics like PVC, glass, regrind, will give off a gas of muriatic acid which is exactly what we use to strip chrome off of any part (50/50 muriatic acid and water). Electroless nickel plating, baked on at 475 for 3 to 4 hours is actually harder than chrome and is not harmed by muriatic acid, PVC, glass, etc. We can also provide PVD (Physical Vapor Deposition) coatings that are much more durable than chrome or nickel. The best coating provided is CEB (Chrome over Electroless nickel Bake), this comes with a better warranty.

 

Does injection molding tip repair come with a warranty? Yes, 6, 12 and 18 months depending on the coating you choose (chrome or nickel) and the material you are running.

 

Please click the links and feel free to call us with any questions. You'll speak directly to a plastics processing technician who can give you an estimate on cost right over the phone. Nationwide same day pickup is available on any size project!

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Keep in mind, we are a used equipment dealer. We buy any and all used machinery working or not. We'll buy your old molds (certificate of destruction and photos supplied) old dies, spare parts, complete lines. Fleet vehicles, forklifts, old gearboxes, we buy anything and everything. Call us with your list or provide photos and let's work out a deal to clean your yard.

Mitchell Precision will NEVER share or sell your contact information with anyone. All information and communications are strictly confidential. You will never get unsolicited calls or emails from us or any of our partners. We take privacy very seriously. We will never have a company call you as a reference for the quality of our past work. We keep all your work, processes, costs, information private. We’ll never reveal your equipment repair to your competitors.