Connecting you to the composites industry


Radio Frequency Sheet Moulding Compound Preheater introduced

  • Tuesday, 22nd February 2011
  • Reading time: about 2 minutes

A new preheating system for sheet moulding compound (SMC) that uses radio frequency heating technology is being introduced by Radio Frequency Co., Inc. of Millis, Massachusetts.

This new system is claimed to improve the distribution of reinforcement fibres in the moulding process which enhances product quality and strength, reduces press cure time by 50%, and be especially effective for thicker bosses and structures.

According to Radio Frequency Co, the Macrowave SMC Preheater provides uniform heating throughout the entire thickness of the sheet moulding compound instantly, without requiring any temperature differential to force heat by conduction from the surface to the centre. They say that this facilitates the movement and distribution of fibres throughout moulded parts, improving their strength and surface finish, and that the RF preheater reduces press cure time which enables a 100% increase in productivity for an existing press.

The Macrowave SMC preheater is capable of preheating SMC loads up to 30″” W x 84″” L in under one minute, has a PLC which controls the heat cycle time, power level, and conveyor movement to synchronize with the press operation. The conveyor can either feed the SMC charge straight through the press or return it to the feed end after heating.

The Macrowave SMC preheater is priced from $95K up, depending upon belt size and other customer requirements.

For more information visit:

Share this article

More News

Comments (0)

Sign in or create an account to join in the discussion.

Leave your comment

Upcoming Events




Follow us
Subscribe to our email newsletter

Subscribe to receive our weekly round-up of all the industry's latest news, jobs, events and more!

We'll always keep your personal details secure and will never share them with third parties for marketing purposes. You can unsubscribe at any time. For further details on how we may use your data, please visit our Privacy Policy.