Impeller
Powder Feeder
for PTA · Plasma · Laser
Motor-driven powder wheel and carrier-gas delivery -- engineered for stable, controllable alloy powder feeding to welding torches and cladding heads. The foundation of consistent overlay quality.
Stable Powder Flow.
Consistent Overlay Quality.
HALDEN impeller-type powder feeders are designed for stable and controllable powder delivery in PTA welding, plasma hardfacing, laser cladding, spray welding, and surface coating applications. A motor-driven powder wheel combined with carrier gas transports alloy powder to the torch or cladding head with adjustable feeding rate.
Powder delivery is the critical link in plasma hardfacing, PTA welding, and laser cladding. Unstable powder flow leads to uneven overlays, porosity, insufficient fill, and inconsistent hardness or alloy composition.
Where It Performs
Core Advantages
Powder output controlled via wheel speed and carrier-gas flow, matched to process demand.
Suitable for plasma welding, PTA hardfacing, spray welding, and laser cladding systems.
Motor-driven powder wheel structure enables continuous feeding to the welding torch.
Stable feeding improves overlay width, thickness, hardness, and alloy uniformity.
Six-Step Powder Delivery Workflow
From storage to deposit -- controlled metering, gas-assisted transport, and surface fusion.
Alloy powder is sieved and dried, then loaded into the hopper.
Motor drives the powder wheel for continuous, calibrated metering.
Carrier gas conveys powder from the feeder to the torch or cladding head.
Operator tunes feed-rate knob and gas flow to match process parameters.
Powder enters the plasma arc, laser beam, or spray zone for deposition.
Powder melts and solidifies on the workpiece into a functional alloy layer.
Reference Specifications
| Item | Parameter / Option | Notes |
|---|---|---|
| Feeder Type | Impeller / Powder-wheel | Continuous alloy powder feeding |
| Drive Method | Motor-driven powder wheel | Powder flow regulated by motor speed |
| Powder Transport | Carrier-gas assisted | Gas flow must be stable and leak-free |
| Recommended Powder Size | 80-300 μm | Sieve before loading to prevent clogging |
| Carrier Gas Flow | ~ 4-5 L/min | Depends on powder, hose length, torch design |
| Compatible Processes | PTA · Plasma Cladding · Laser Cladding · Spray Welding | Interface and control matched to host machine |
| Typical Powder Materials | Fe / Ni / Co-based, WC composite | Verify flowability before production |
Powder Size Drives Stability
Powder may be blown away, reducing utilization and causing unstable deposition.
Large particles may clog torch powder channel and damage or scrap the torch.
Causes unstable feeding, nozzle clogging, porosity, or inconsistent coating chemistry.
Poor flowability, porosity, spatter, and inconsistent coating quality.
Eight Operation Steps
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01Check Connections
Verify electrical, gas, and powder hose connections -- secure and leak-free.
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02Sieve Powder
Filter alloy powder using the equipped sieve before loading the hopper.
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03Load Powder
Add welding powder and tighten the feeder cap to prevent gas leakage.
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04Power On
Start the feeder and confirm correct rotation of the powder wheel.
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05Set Feed Rate
Turn the feed-rate knob to match process powder demand.
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06Adjust Gas Flow
Tune carrier gas to deliver powder smoothly to the torch or head.
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07Activate Feed Control
Engage feed control before live coating; verify stability.
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08Begin Cladding
Start PTA, plasma, spray, or laser cladding once flow is confirmed.
Industry Coverage
PTA or plasma overlay feeding for valve seats, sealing surfaces, and corrosion-resistant build-ups.
Alloy powder delivery for surface rebuilding of shafts, bores, journals, and cylindrical parts.
Powder cladding for wear chutes, sliding surfaces, and industrial wear components.
High-precision feeding for laser surface repair, remanufacturing, and additive coating.
PTA system feeding for screws, picks, tools, rolls, and precision wear parts.
Powder feeding for spray welding equipment and surface coating treatment.
Alloy Powder Matrix
Cost-effective wear and surface strengthening.
Corrosion, heat, and wear resistance.
Premium hot-wear, corrosion, and thermal-fatigue resistance.
Extreme abrasion and gouging-wear resistance.
Choose the Right Feeder
PTA, plasma, laser, or spray -- each requires specific stability, gas flow, and control interface.
Recommended 80-300 μm. Too fine reduces utilization; too coarse may clog channels.
Verify shape, humidity, density, and sieving -- poor flow yields unstable feeding.
Match power, current, travel speed, and overlay thickness to avoid under/over-deposit.
Manual knob, NC control, robotic control, or system interlock -- automation needs stable signal control.
Powder Feeding Quality Control
Common Questions
Engineering answers about powder feeding stability, compatibility, and operating practice.
What is a powder feeder used for?
How does an impeller-type feeder work?
What powder size is recommended?
Why does powder feeding become unstable?
Can one feeder serve PTA and laser cladding?
Specify Your Process.
We'll Match the Feeder.
Tell us your process -- PTA, plasma, laser, or spray -- alloy powder, expected feed rate, and integration mode. HALDEN will recommend the right feeder configuration with carrier-gas tuning and control interface.
