PS&E - Screw Tip Assemblies

Screw Tip Assemblies

OEM, PSE/Free Flow, and 4 & 5 Piece Designs Available

The following brands of tip assemblies are in stock and ready to ship.

Arburg
Autojector
Battenfeld
Boy
Bucher
Cincinnati
Cincinnati Act
Cincinnati Vista
Cinc. Vista Sentry
Davis-Standard
Egan

Egan/Farrel
Egan/HPM
Engel
Farrel
Ferromatik
Gluco
Goldstar
HPM
HPM/Egan
Husky
Illinois-Precision

Impco
Jaco
Jomar
JSW
Kawaguchi
Klockner
Kraus-Maffei
Lester
Lombard
Mitsubishi
Natco

Negri-Bossi
Netstal
New Britain
New Britain/HPM
Newbury
Niigata
Nissei
Reed
Sandretto
Stokes
Sumitomo

TMC
Toshiba
Toyo
Trubor
Trueblood
Van Dorn
Van Dorn/Demag
Welex

If you don't see what you are looking for, please contact us at sales@servicesforplastics.com or phone us at 1-800-627-1033.

We can make any screw tip assembly!

We have an extensive CAD library consisting of thousands of prints for screw tips, barrels, screw, nozzles, end caps, etc. If you need a quote and there isn't a print available, simply send us a used sample part and specify what material you want the new one made from. (Hint: Always save your original screw tip assemblies. They are valuable for verification of dimensions when ordering new assemblies.)

No one check valve design is perfect for every application; therefore, we offer three distinct designs to ensure the proper component for your application.

Design Options

O.E.M. Design

Advantages:

Good design for most general purpose materials
Good for color mixing
Good shut-off
Excellent for small precise shots

Disadvantages:

Can sometimes promote long screw recovery or overheating conditions on jobs using a large portion of the machine stroke

PSE/Free Flow Design

Advantages:

Faster screw recovery - less heat build up
Possibility of faster cycles
Foreign makes re-designed without rotating ring

Disadvantages:

Possible valve leakage (cushion loss on slow injection)
Free flow reduces color mixing qualities found in restricted flutes
Tip breakage on start-up due to increased resin to melt in flutes before starting screw

4 & 5 Piece Design

Advantages:

Seat, ring, and body made of thru-hardened heat treated tool steel, nitrided for wear resistance
Tough 4140 stud for torque
Very good where stud breakage has been a problem
You need only replace the stud if other parts are in good condition

Material Options

H-13 Tool Steel: A good high strength pre-hardened tool steel which is machined, thru-hardened, and ground dimensionally, then nitrided for 72 hours for better wear resistance. H-13 is tough and can handle pressure and torque.

CPM^®-9V Tool Steel: A new generation tool steel with a high percentage of vanadium carbide developed for high wear (abrasive) applications. Many end users have reported a much longer tip assembly life. (Some competitors have even made claims of 10 times more life! But consider this, if your H-13 tip assembly lasted 2 years, would a CPM^®-9V tip assembly last 20 years? It would be nice, but we wouldn't count on it!)

CPM^®-420V Tool Steel: Crucible's CPM^®-420V is a new stainless tool steel best suited for corrosion resistant applications. CPM^®-420V is a higher performance upgrade for CPM^®-440V. Corrosion resistance is significantly better than CPM^®-440V. Wear resistance is about 25-50% better than CPM^®-440V, due to the higher vanadium carbide content of CPM^®-420V (9% vanadium vs. 5.5-6% in CPM^®-440V).

D-2 Tool Steel: A high carbon/high chrome tool steel with good wear resistance, but low on torque strength. D-2 should only be used with 4 and 5 piece design screw tip assemblies where the stud is manufactured from 4140, H-13 or another high torque steel.

Nitralloy 135m, Nitrided: A pre-hardened tool steel. This material is machined, then nitrided for 72 hours. This material has a shorter life, and should only be used when low cost is the only consideration. We do not stock screw tip assemblies in Nitralloy 135m, Nitrided.

Your Next Barrel or Screw Is On Our Shelf...
Call Today! 800-627-1033