We at Birk have invested heavily in Lean training and implementation over the course of the past year and the benefits can be seen throughout the entire company, from the office to the shipping bay. These changes have helped us better serve our customers, which is our singular goal here at Birk. These changes have also greatly improved our internal and external communications which have helped make us a much more efficient company.
1. Q: How do I calculate what wattage I will need to reach the my operating temp?
A: We here at Birk can help you with that. There are many factors which go into a wattage calculation including: the heat sink material, the ambient room temperature in which the heater will be operating etc. We make custom heaters everyday so our engineers can work with you to calculate the correct wattage needed for your application.
Q: What is the max operating temperature for your heaters?
A: We manufacture 4 different types of Flexible heater here at Birk. Each type of heater has a unique maximum temperature based on the insulating material used to build the heater. Below is a list of the different insulators and their associated maximum temperature.
1. FEP Kapton – 500˚F
2. Acrylic Kapton – 250˚F
3. Silicone Rubber – 400˚F
4. Butyl – 250˚F
A kapton heater Is a polyimide film used in conjunction with etched foil circuits to produce very thin flexible heaters. Kapton? Has excellent dielectric qualities to provide 5000 volts dielectric per . 001 inch (. 025mm) thickness. Birk Manufacturing uses many types of Kapton with two bonding systems. An FEP teflon is a thermo flow polymer and a thermo flow acrylic. The FEP bonded Kapton has a continuous temperature capability of 500°F (260°C), the acrylic bonded Kapton has a continuous temperature capability of 250°F (120°C). Birk can manufacture Kapton heaters up to 6 inches (300mm) wide by 65 inches (1651mm) long, the largest in the industry, and thickness from .003 inches (. 07mm) to . 010 inches (. 254mm).
Using a proprietary process, Birk bonds foil to Kapton. Prior to etching, and after etching then bonds a top insulation ply to the assembly. Birk can also bond these heaters to metal surfaces with a bond line as thin as . 0005 inch (. 0127mm) providing excellent bond strength and heat transfer.