Cooling Pipes - Dowel Pin and Flange

This cooling pipe assembly is used inside injection molds where stable temperature control directly affects cycle time, dimensional stability, and part quality. It is designed for dowel pin or flange mounting, making it suitable for repeatable positioning in production tooling.

• Automotive connector and housing molds: Use the pipe variant with a clamping method (dowel pin or flange) to maintain consistent coolant alignment through repeated shots, helping reduce thermal drift around thin ribs and bosses.
• Consumer appliance housings and covers: Select the stainless steel or brass/brass-capable option to support steady heat dissipation during long, high-volume molding runs.
• Electrical and thermal-management components: Where thermal conductivity is critical, the oxygen-free copper or phosphorous-deoxidized copper pipe material supports efficient heat transfer with compatible thermal needs.

Choosing stainless for corrosion resistance or copper-based materials for enhanced conductivity helps match the thermal and durability requirements of demanding production environments.

Materials are offered in stainless steel or brass, with copper-based pipe material options including oxygen-free copper and phosphorous-deoxidized copper. Stainless steel is typically selected for corrosion resistance and long service life in aggressive molding environments, trading off some thermal conductivity versus copper alloys.

Brass options provide a practical balance of machinability and stable heat dissipation for general mold temperature control. Copper-based pipe materials focus on high thermal transfer efficiency; oxygen-free copper is commonly chosen where consistent thermal performance is desired, while phosphorous-deoxidized copper offers a similar conductivity-focused approach suitable for many cooling layouts.

• Clamping interfaces: Dowel pin or flange mounting helps maintain consistent contact and reduces alignment variation during production.
• Manufacturing: Pipes are supplied for inside mounting in cooling circuits and are typically installed as part of drilled/cored mold interior thermal channels.

Select dimensions to match your mold cooling circuit geometry and the required heat removal zone. The available pipe diameter D range is 1.5 ~ 12 mm, and the available length L values are 150, 200, 300, 350 mm.

To size correctly:

• Identify the cooling area along the core/cavity where temperature uniformity is needed, then choose the pipe length L that spans the target heat-transfer region without intersecting ribs, ejector features, or venting paths.
• Match the pipe diameter D to the planned interior coolant channel space and the mold drilling/coring dimensions. Smaller D can be used for tight layouts, while larger D improves flow capacity where space allows.
• Use the dowel pin or flange clamping method to secure alignment during assembly; ensure the mating mold-side features are sized to maintain proper fit and stable positioning during production.

If your mold design uses strict positional repeatability across cavities, prioritize the clamping method that best matches your mold-side reference features.