Threaded Insert Heating
Induction Heating Threaded Inserts For Automated Insertion & Heat Staking
Threaded inserts are widely used for pressing or heat staking into injection molded and 3D printed plastic parts to provide high strength screw threads. One of the best methods for installing threaded metal inserts is to preheat them so that when they are pressed into the part the plastic is melted and flows around knurls built into the insert. This firmly holds the insert in place with high torque handling capability. Induction heating is often used as the method of choice for heating inserts prior to presssing into the part.
Mirror image 3 position heating coils are encased in phenolic housings to heat inserts on both sides of a part.
Magneforce Heat Station and Magne AC3 heaters are often used as a primary component of custom built manual, semi-automatic and automatic assembly equipment for industrial processes. They provide rapid, non-contact heating of brass and steel threaded inserts. Heating is reliable and consistent from part to part, insuring quality, repeatable insertion. There is no hot tip or horn to wear out. Only the insert heats up, the heating element stays cool. The heaters are easily controlled by your PLC and provide a DC output signal to verify proper heating for every cycle.
Magneforce designs & manufactures custom heating coils to match the layout of most any part. Heating coils are available to heat up to 6 inserts at one time with all inserts heating evenly. Most coils are encased in a milled phenolic housing to allow for secure mounting in the processing equipment.
Insert Heating Examples
A HS2500R2 heater is set up with a 4 position heating coil. The phenolic encased coil is angled at 90 degrees to fit the automated machine.
This heating coils heats 4 inserts inline as part of the automated insertion machine shown to the right. It is used with a HS5000R2 heater and mounts below the table top.
The remote air cooled heating head of the Magne AC3 heater heats brass and steel inserts and is easy to set up and use.
A 5 position heating coil encased in a milled phenolic housing enables precise location in a custom insert machine. This coil uses a HS5000R2 and heats all 5 inserts in 6 seconds.
The MagneAC3 induction insert heater does not require water cooling. It is easy to set up and use and can plug into a standard 110V outlet.
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Plug in heating heads monitor head temperature and can be swapped out to different sizes in just a few seconds.
This video shows the actual heating of the inserts in the coil. The blue coating on the inserts is used for testing and melts when the insert reaches 500F. Heating takes just a few seconds.
The inserts are placed on top of the rods, heated and then driven up into the part pneumatically.
This video shows the heating capabilities of the
air cooled Magne Ac3 Heater.
A 3D rendering of a 6 position heating coil used in an automatic insertion machine. Multiple air cylinders move the inserts into the coil for heating and then press them into the part.
This video illustrates the ease of use of the Magne AC3 system with optional cycle timer.