For Sale - SRP - 2330 - Carbide Encapsulated Feed screws

Specification

Reference Number

SRP - 2330

Product

Carbide Encapsulated Feed screws

Manufacturer

Extreme Feedscrew Coatings Pvt. Ltd., India

Product Details

Extreme Feedscrew Coatings design wear resistant screws for all injection moulding and plastic extrusion. We expertise in designing and manufacturing thermal sprayed extremely wear and Corrosion resistant feed screws.
The technology produces crack free coatings with hardness values ranging from 30-70 Rc and thickness' from 001"-.030". Proprietary composition of hard carbides, ceramics, and alloys are incorporated to achieve abrasion and corrosion resistant characteristics unmatched by conventional hard facing alloy. This process completely eliminates the necessity for chrome plating, flame hardening, or nitriding, as the entire screw surface is encapsulated, including the root, flight sides and flight lands.

We offer a variety of root and flight side surface finishes from +/-140 RMS to our 16-32 RMS mirror finish, which rivals chrome plating in appearance. We finish grind the screw outside diameter to dimension and have the capability to strip coated screws for rebuild when worn.

The coatings are excellent for screws exposed to filled resins, rubbers, or other abrasive compounds. Specific corrosion resistant coatings are available that eliminate the need to fabricate components from costly alloy materials. The application process requires no preheat or post heat procedures and component temperatures rarely exceed 3500 F. This low heat input helps prevent distortion and minimizes costly straightening or machining requirements. Screw preparation for coating requires an undercut during rebuilding or manufacturing to accept the coating thickness desired.

Another unique feature of this process is the capability to rebuild CPM (1) screws, provided wear is limited to approximately .015" per side or .030" overall.

Encapsulating a plastic injection molding or extrusion feed screw with a wear and corrosion resistant tungsten or chromium carbide coating will reduce your average amortized monthly feed screw costs by up to 50% regardless of the cause processing problem in plastic moulding machine and extruders.
- Adhesive wear (metal to metal) is caused as the feed screw flight lands contact the barrel I.D.
- Abrasive wear occurs when hard fillers such as fiberglass or Titanium Dioxide are compressed against the screw flight and barrel surfaces causing material removal.

The high concentration of extremely hard tungsten or chromium carbides in our coatings provide adhesive and abrasion wear characteristics unmatched by common hard facing alloys or tool steels. In most cases, you can expect an encapsulated feed screw to last from two to five times longer than any other feed screw on the market.

For More Details Contact:
Extreme Feedscrew Coatings Pvt. Ltd., Chennai
Mr. N. Devendiran
Mobile: +91-9677145999
Email: devan@extremecoating.com