Conventional Preform System
The Brenner Preform Machine has been manufactured and successfully utilized for 65 years! Now it has evolved to be even better. Taking advantage of stronger design criteria and state of the art manufacturing processes, it is once again the benchmark in the world of fiberglass processing equipment. Added to the system is an optional fire suppressant system and automatic shut-offs for safety of the operator. We have redesigned the oven so that the unit will work with an indirect gas-fired system or an electrical heat source. Building on its long known reputation for durability and dependability, the system continues to perform tirelessly for 24 hours, 7 days a week, with minimal maintenance.
The system is custom-built to your specifications. Whether you need it to be 20“ or 100”, we can deliver! This unit can be configured to work with computer spray-up or the traditional hand spray-up. We design our systems with the CUSTOMER in mind. What you want, you get!
The system is designed to be flexible. It comes with a PLC controller. You can order a bag house to help collect the free flying fiber and can move the oven from the top to the rear.
Good To Know Information
- Controlled with a Programmable Logic Controller (PLC)
- Forming Fan Motor: 150 HP, Moving 64000 CFM @9" Static Pressure
- Optional Light Veil Safety System
- Fire Suppressant System (Optional)
- Fiber Recovery System (Optional)
- Diameters from 24" to 100”
- Footprint of Unit based upon Size of the Mold Area
- On-Site Installation Available
- Indirect Gas Fired Curing Chamber with Maximum Operating Temperature of 450 Degrees
UV Preform System
This is a fiberglass preforming process based on the use of an ultraviolet light curable binder. This binder is applied to chopped fiberglass, which is then formed into a fiberglass preform. The process comprises the following steps:
The fiberglass material is chopped and laid-up into a steel mold into a near net shape by applying fiberglass and binder either by a robot or by an operator run PLC controlled spraying system. The finished product will approximate the finished shape as much as possible. The binder is applied by weight at 3%-6% of the weight of the glass material. The mold can be male or female depending on the application.
Once the fiberglass material is chopped onto the screen, it is exposed to the UV light source. The binder material is cured in under 30 seconds, depending on light intensity and part density. After curing the preform can be removed from the mold. Holes and cutouts can be added at this time.
After trimming, the result is a finished preform. At this point the preform can be stored for future usage, used immediately or combined with additional preforms and/or core material in a secondary forming process which allows multiple preforms to be unified into a single preform via energetic stitching.
Non-Migration of Binder: Because of its formulation, the UV binder does not migrate when resin is injected into the mold. Normal preform binders tend to dissolve when the resin flows through the preform. This washing action of the binder eliminates the holding capabilities of the binder and the fiber will then be free to move with the resin thus causing undesirable variations in fiber density.
Speed of Cure: Since the binder is light activated, curing is accomplished in seconds rather than in minutes. If one is looking for high parts output then UV preforming is the answer to that need.
Energy Cost: In typical gas fired preform systems, the oven is on during the entire working shift and typically uses 1.0M Btu’s per hour to maintain the oven at approximately 350 degrees. Since the UV system uses electric as the operating source and since the system is only on for 5-10 seconds per cure the energy cost is much lower.
Low Heat Emission: Since the system produces very little heat, parts can be handled immediately after curing with little or no discomfort to the operator.
VOC’s: The binder used here contains no Styrene and is virtually odorless