Blown Film Die Repair Service

We're a full-service, all-in-one industrial equipment repair and rebuilding facility that offers 24hr, nationwide blown film die repair services with 60+ years of experience!

Virtually Every Part in Stock, Inventory of Over 18,000 Parts!

Specializing in: Davis Standard, Egan, Gloucester, EDI, Santo, Alpine, Battenfield, Hartig, Krupp, Graham, Black Clawson, Brampton & many more.

What can Hard Chrome Solutions do for you?

The experienced staff and wide variety of equipment and new technologies make Hard Chrome Solutions a blown film die repair shop capable of handling an array of machining and chrome plating capabilities. All of our plating and repair services have superb operating economics, flexibility and reliability. We can rebuild and refinish all major brands of industrial blown film dies, extruder screws, air rings, blown film extrusions, and more. We also manufacture brand new film dies.

What Type of Blown Film Die Services do you Offer?

We offer cleaning, burning, repairing, rebuilding and hard chrome plating as well as electro nickel plating on every make and model of blown film dies, rings, pins, spirals bodies, shafts, heads, cylinders, pistons, mandrels housings, screws, plate molds & many more.

Top Quality Surface Plating & Polishing Options

Hard Chrome Solutions offers a wide range of polishing and surface finishes on blown film dies, extruder screws, and air rings. Surfaces available include various roughnesses of precision ground rolls as well as commercial belt polished finishes. Finishing options include: Custom Chromium Finishes, Mirror, Optical Mirror, Matte, Satin.

The combination of experience and advanced equipment allows us to create more precise and efficient components for our customers, in the desired surface quality and their specifications. Our blown film die repair customers can expect to receive components with a fast turnaround and competitive pricing.

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Industry Standard Repair Process and Techniques

Below are our procedures when it comes to repairing blown film dies and air rings. If you have any questions about our services or would like speak with a technician please contact us though our online form or visit our contact page for more information.

Producing film through extrusion of molten resin in a continuous tube can look very simple. The design and technology has certainly improved over years. However, it is a very complex process which requires care and precision.

As an experienced repair and rebuilding service provider, we offer emergency blown film die and air rings services nationwide pickup and delivery. Multiple elements are involved in the design—which is made more efficient and precise by our technicians to suit your industrial applications!

Setting up these dies and air rings in the correct configuration is very important. Here is how we ensure it’s done the right way:

1. The die should be maintained in the center underneath the main nip roll assembly. The plumb line which is dropped from the nips should not be further out than the edge of a dime which is placed in the center of die face.

If the blown film die is from another line or is new with an incorrect adapter length, then obtaining a true plumb line will be a problem. If it is extremely off-center, it will be highly distorted too. This will result in both wrinkles and poor gauge which can’t be corrected by the operator.

2. The top must be leveled after both the die and extruder have reached the operating temperature. The barrel clamps must also be tightened to the adapter and all casters should be in contact with the floor.

The die can’t be leveled separately because most floors are not leveled, distance between floor and die adaptor increases varyingly, and vibration occurs if any of the casters are not firmly in contact with the ground.

3. The ring can only be leveled and centered once the blown film die is properly leveled. The air die is often not fastened to the top edge of the die. It is instead dependent on its own weight for holding in position.

A good operator will always check the air ring center and level if the bubble is down. If it’s up, it will be impossible to know whether ring or the die needs any adjustment.

4. Following the leveling, a few air rings are set on top of the die on a flame retardant pad. Other air rings are instead raised above the top with an air gap providing insulation.

5. The air ring is often less sensitive to top opening adjustments and blower if an air gap exists between the top of the die and the air ring. However, this means that airflow is present between the top of the die and the bottom of the ring that impinges the hot melt as it is extruding from the blown film die.

Dirt, silicone grease and pieces of purge in the open space will disturb this air flow, resulting in gauge bands infiltrating the film.

It can be rather complex to ensure the correct setup, but it is necessary to achieve a proper blown film die repair. We offer repairing, rebuilding, plating and troubleshooting services for all models of blow molding heads and sheet die services, blown film extrusions, multi-layer blown film die, film extrusion die, with the inclusion of centrifuge rebuilding and gearbox upgrade services.

EMERGENCY BLOWN FILM DIE REPAIRS - 24HR SERVICE

Contact us today for 24/7 emergency blown film die repair support and allow us to answer any questions you may have. We can make sure you have the right surface qualities and other specifications for your application!

We understand that blown film die repair can be a complex process, and our team of experts is always available to answer any questions you may have. To help make the process easier for our customers, we have put together a Frequently Asked Questions (FAQ) page that addresses some of the most common questions we receive about our services.