The extrusion process is a continuous operation in which the hot plasticized material is forced through a die opening of the desired shape. The material in pellet, granular, or powder form is placed into a feed hopper which feeds the cylinder of the extruding machine material as required. The cylinder is so heated by electricity, oil, or steam that closely controlled temperature zones are set up along its length. A rotating screw carries the material through the cylinder, mixing and working the material where necessary, and forcing it through a die orifice of the required shape. The extruded shape coming from the die is carried through a cooling medium by a conveyor and, when it has been cooled sufficiently to retain shape, is cut to length or coiled. In some instances the material must be held to shape during this cooling. Cooling is done by exposure to air at room temperature, by passing through a liquid bath held at a controlled temperature, or by jets of compressed air. Too rapid cooling must be prevented, as it causes warpage and sets up internal strains in the finished pieces. The raw material must have a uniform particle size and a controlled moisture content to maintain close dimensional tolerances and a smooth surface on the finished extrusion. The temperature of each heat zone of the cylinder must be held constant to assure a good extrusion. The speed of extrusion (pounds per hour handled by the machine) varies considerably depending upon the size of the die opening, the delivery of the screw, and the nature of the material being processed. Variable-speed machines are generally considered best for all-round flexibility, particularly in job shops. Where a single type of extruded product is made, a less flexible machine may be more economical. A wide variation of temperatures, speeds, methods of handling, and design of equipment is necessitated by the wide variations in characteristics of different thermoplastics.
Extruded Shapes. Plastic extrusions are produced as tubes, rods, sheets, flat strips, profiles, filaments, and coatings for wire, cable, pipe, and rope. The favorable properties of extruded plastic tubing are chemical resistance, flexibility, strength, and transparency or translucency. A wide variety of applications has been found for the many types of plastic tubing available.
Extruded rods are used for light-load supports and decorative purposes.
Extruded plastic sheeting has been adapted to many uses including packaging, shipping containers, industrial and domestic tapes, electrical insulation, safety glass, and motion-picture film.
Price Tooling and Sample Product This is a one-time charge for the custom tooling. A few Free Sample Products are included in the price.
Price each Based on part size, quantity and material. Average labor costs range from $1 to $5 per hour. Material costs are significantly less than market prices.
Shipping Cost of shipping the product from the factory to your door. Most of our plastic extruded products originate from Shanghai, China.
Discounted rates apply. Each package must be less than 150 pounds (70 kg) and less than 108" long (270 cm). more details...
Discounted rates apply. Each package must be less than 150 pounds (70 kg) and less than 119" long (302cm).
+ Air plus Truck
For shipments larger than UPS or Fedex restrictions. Quote upon request.
+ Ocean plus Truck
Most economical, any weight or size. Minimum charge approximately $750. Best for heavy shipments that can wait the extra time. Extra increase in weight has smaller effect on cost.
Metric Drawing Approximately 1 - 5 days after receipt of your order and tooling payment, our engineers will create a metric drawing for your review.
Tooling and Free Sample Products A
pproximately 30 to 45 days after metric drawing approval, tooling will be made and a few sample products will be sent to you at no charge for your inspection and approval.
Free Online Part Review Production
Please carefully inspect the parts and compare them with your requirements. The production run of your parts will be the same as the samples so please indicate any changes at this time. The best way to indicate revisions is to annotate them on a digital picture. You may do this yourself and email them to firstname.lastname@example.org
or we can upload pictures to our secure collaboration website for Free Online Part Review
. If major changes are necessary, a second sample will be provided at no charge.
Approximately 30 to 45 days after the sample is approved products will be completed. Shipping Air UPS
Approximately 1 to 5 days
Approximately 1 to 5 days
+ Air plus Truck
3 to 14 days. For shipments larger than UPS or Fedex Air.
+Ocean plus Truck
Approximately 30 to 40 days
Money Saving Tips
Design in Metric
When combining our services for a finished product, metric fasteners, hardware, o-rings, etc are less expensive and more readily available in China.
How to Receive a Quote
This product is custom manufactured to your specifications and cannot be ordered online. You may, however,use one of the following methods to receive a quote:
Request Online: Choose your options, add to cart and proceed to checkout. There is no charge for this service, therefore, no credit card is required. You will receive an automated e-mail confirming your "Order" for a quote.
E-mail a request for quote to email@example.com. If appropriate, attach a sketch, drawing or picture.
Below please find the formats we can open:
Autocad : *.dwg
PDF : *.pdf
Drawing Interchange Format : *.dxf
Tagged Image File Format: *.tiff
Microsoft XPS document: *.xps
JPEG : *.jpg
Upload to our secure server.
Fax a request for quote to (973) 300-5477. If appropriate, attach a sketch, drawing or picture.
Call (973) 300-1344 and an application engineer will assist you.
Mail Prints and requests to: Produstrial , 5 Larkspur Lane, Fredon, NJ 07860
1. References: Tool Engineers Handbook