Monday, August 31, 2009

Basic Design Guidelines for Thermoformed Parts


It is our recommendation that each part be discussed prior to and after the quoting process. We have published our Basic Design Guidelines to help you in the design process. We stand ready to assist in these discussions and any questions that may arise.

Excerpt from our Basic Design Guidelines ....
Materials chosen for a product play a large role in the tolerances of a part. These guidelines are based on experience with dimensionally stable resins such as HIPS, ABS and TPO. They guidelines would also not be recommended for dimensionally sensitive materials such as HDPE, HMWPE, PP,etc..

All trimming is done at ambient plant conditions. Dimensions are based on these temperatures.If parts are measured subsequently in varied temperature conditions, dimensions will change. All materials have differing thermal expansion rates. If wide temperature swings will affect the part it should be noted up front so adequate steps can be taken to insure that the part will function as designed.

Please Rate our Thermoforming Design Guidelines here!


Basic Design Guide

Wednesday, August 26, 2009

Innovative Living Hinge Roll-up Door for Box Trucks

Imagine this could be the Last Door you ever have to purchase for your Box Trucks!

This door was designed by Spencer Industries using our twin sheet thermoforming method with a living hinge to reduce hardware cost and assembly. Doors can be made up of as many panels as required depending on the various truck heights. The living hinge door is made from TPO material. This door has been rigeriously tested to extreme temperatures and environments, and has proven it could last a lifetime.


Click here for more information on our Living Hinge Roll-up Doors

Friday, August 14, 2009

Twin Sheet Thermoforming Advantages and Features

Twin Sheet Thermoforming is accomplished by heating of two extruded plastic sheets simultaneously and then forming and sealing or fusing these two sheets together during the thermoforming process. In many cases, the twin-sheeting process produces parts that can resemble a blow-molded or rotational molded product, but with several advantages.

  • A two-color product option
    Ability to have 2 different material thicknesses

  • A higher esthetic product because of complete tool contact of both exterior sheets

  • A hollow product with a separate component trapped inside the two sheets as the part is being twin sheet thermoformed.

  • Allows a parting line that varies in locations around the perimeter of the two halves

  • Increased Structural Integrity and helps Rigidify otherwise weak areas

  • Multiple Materials that we commonly Twin Sheet Thermoform - HIPS, ABS, TPO, HDPE, PP, TPU, & PETG

  • Size capabilities range from as small as 8" x 8" to as large as 7' x 11' x 36" Depth


Monday, August 3, 2009

Spencer Industries Incorporated ISO 9001:2008

Spencer Industries Incorporated is proud to announce their Quality Management System has been assessed and found to be in conformance to the new ISO 9001:2008 standard at our facilities in Dale, Indiana. This is following an upgrade reassessment audit conducted on July 7th and 8th by NSF-ISR. Spencer's Quality Management System is a processed based system that focuses on the eight quality management principles in order to lead the organization towards improved performance, greater customer satisfaction and continual improvement of the processes.
  • Customer Focus
  • Leadership
  • Involvement of People
  • Process Approach
  • System approach to management
  • Continual improvement
  • Factual approach to decision making
  • Mutually beneficial supplier relations