The pulse heat staking system uses controlled electrical energy to rapidly heat the staking tip. After the plastic boss is formed, heating stops immediately and compressed air cools the staking point and forming tip before retraction.
A Pulse Heat Staking Welding Machine is an intelligent assembly system that utilizes pulse-based precision temperature control to locally heat and form plastic rivet posts, enabling high-strength, low-deformation, and highly consistent plastic joining processes. It is widely used in the manufacturing of automotive interior and exterior components, as well as precision plastic assemblies.
A pulse heating staking unit is equipped with a generator, depending on the system configuration, the staking tip can reach up to approximately 300°C within around 10 seconds, after the welding points are welded by pulse heat staking units,the heat staking unit will stop heating up, and then the heat staking welding unit is also equipped with a cooling air tube to cool the welding points down. Â
This kind of pulse heating staking welding machine is particularly suitable for automotive lighting applications where precise stake formation, controlled heat input and consistent mechanical retention are required.
Multi-Point Pulse Heat Staking
Multiple independently controlled pulse heat staking units can be integrated into one customized machine according to the number and position of plastic bosses.
Independent Heating · Independent Temperature Control · Adjustable Staking Units · Multi-Point Simultaneous Processing
Why Pulse Heat Staking
Rapid Heating & Cooling
Heating is applied only when required, followed by controlled air cooling.
Reduced Thermal Impact
Localized heating helps limit unnecessary heat transfer to surrounding components.
Precise Stake Formation
Controlled temperature, pressure and cooling help achieve repeatable stake geometry.
Suitable for Sensitive Components
No ultrasonic vibration is required, making the process useful for assemblies containing sensitive electronic or precision components.
| Traditional Heat Staking | Pulse Heat Staking |
|---|---|
| Continuous heated tooling | Heat on demand |
| Conventional temperature control | Precise heating profile control |
| Longer thermal exposure | Reduced thermal exposure |
| Tool remains hot | Tip heats and cools during each cycle |
| Suitable for general staking | Particularly suitable for precision parts |
| Conventional energy usage | Potentially lower energy consumption |
How Pulse Heat Staking Works
01 Positioning
Parts are positioned in the customized fixture.
02 Rapid Heating
The staking tip heats rapidly only when required.
03 Forming
Controlled heat and pressure reshape the plastic boss.
04 Cooling Under Pressure
Heating stops and compressed air rapidly cools the staking point.
05 Release
The staking head retracts after the formed plastic becomes stable.
Typical Applications
Automotive Lighting
LED modules, brackets, decorative components, light guides and internal plastic assemblies
Automotive Electronics
PCB retention, sensor modules and electronic housings
Automotive Interior Components
Decorative trim, brackets and precision plastic assemblies
Electronic Plastic Assemblies
PCB-to-housing and plastic-to-metal assembly
5-Minute Automatic Tool Change
Automatic clamping and quick pneumatic/electrical connections reduce tooling changeover time and production downtime.
Jfortune Application Review
Discuss Your Pulse Heat Staking Project
For pulse heat staking, include boss geometry, insert material, appearance limits, station count and cycle-time requirements. Send part drawings, plastic material information, target cycle time and quality requirements. Our engineering team will review the process and recommended equipment.