Restore leaking, imbalanced, or worn hot runner manifolds to full OEM specification — without the cost or lead time of a full replacement.
The manifold is the distribution backbone of any hot runner system, the channel network that carries molten plastic from the sprue bushing to every drop and nozzle. When a manifold develops internal leaks, carbon buildup, or wear at the sealing and probe interfaces, the effects show up everywhere downstream: shot-to-shot inconsistency, cavity imbalance, plastic leaks between plates, and in severe cases, unplanned line stoppage.
Replacing a manifold outright can mean weeks of lead time and a significant capital cost. In most cases, a worn or damaged manifold can instead be fully refurbished, restoring flow balance, sealing integrity, and thermal performance at a fraction of the cost and downtime of a new one.
Signs Your Manifold Needs Refurbishment
- Plastic leaking between the manifold and backing/cavity plates
- Inconsistent fill or pressure across cavities fed from the same manifold
- Carbon or degraded-resin buildup restricting flow channels
- Wear or pitting at nozzle seat and probe interfaces
- Corrosion in non-visible internal channels
- Heater or thermocouple faults traced back to the manifold body
Our Manifold Refurbishment Process
1. Disassembly and inspection The manifold is removed from the hot half and fully disassembled for inspection of internal channels, sealing surfaces, and probe/nozzle interfaces.
2. Thermal and chemical cleaning Internal flow channels are cleaned of degraded resin, carbon deposits, and contamination using non-abrasive thermal and chemical methods — the same core cleaning capability used across our hot runner and pyrolysis services — without altering channel geometry or dimensional tolerances.
3. Dimensional and flow-path assessment (Flag: confirm whether PCT actually re-measures/verifies flow channel dimensions and balance, or whether this step should be reworded to match your real capability.)
4. Sealing surface and wear repair Worn or pitted sealing surfaces, probe seats, and heater pockets are repaired or reconditioned to restore proper contact and prevent future leak paths.
5. Heater and thermocouple restoration Manifold-mounted heaters and thermocouples are tested, repaired, or replaced as needed — consistent with our broader hot runner electrical service.
6. Reassembly and testing The refurbished manifold is reassembled and tested for thermal balance and sealing integrity before it’s returned to service or reinstalled.
Refurbish vs. Replace
| Refurbishment | New Manifold | |
|---|---|---|
| Typical lead time | Faster, no manufacturing lead time | Often weeks, depending on OEM |
| Cost | Fraction of replacement cost | Full tooling/manufacturing cost |
| Compatibility | Guaranteed, it’s your existing manifold | Requires exact OEM match or redesign |
| Best for | Leaks, wear, contamination on an otherwise sound manifold | Damage beyond repair, or a design change |
Any Brand, Any Design
We refurbish hot runner manifolds across brands and configurations, including systems from Husky™, Mold-Masters™, MHT™, Otto Hofstetter™, SACMI™, SIPA™, and others, as well as custom or legacy systems no longer supported by the original manufacturer.
Frequently Asked Questions
How do you clean the internal channels of a manifold without damaging them?
We use non-abrasive thermal and chemical cleaning methods designed to remove contamination without altering the internal geometry or dimensional tolerances of the flow channels.
Do you refurbish manifolds for hot runner brands you’re not an authorized dealer for?
Yes, we work on hot runners and manifolds of any brand or design, including systems no longer supported by the original manufacturer.
Hot runner support, services and spare parts
Find out how we can help you with customized solutions for the maintenance of your hot runner systems. Fill out the form and send us your request.