Greenstone GST-SF Series High-Precision Laser Powder Feeder System (Gas-Carrier Type, Sealed Hopper, Optional Heating & Agitation, for Laser Cladding & Metal 3D Printing)
Presentation of the equipment's characteristics
The Greenstone GST-SF Series High-Precision Laser Powder Feeder System is a gas-carrier powder delivery unit engineered for stable and accurate metal powder feeding in laser cladding, laser additive manufacturing, and directed energy deposition (DED) / metal 3D printing processes. Using a controlled carrier-gas conveying method, the GST-SF series can transport metal powder over distance while maintaining consistent flow, supporting both production environments and integrated automation cells. To match real market demand for better deposition repeatability and lower scrap rates, the system is designed around precise feed control, sealed powder storage, and flexible configurations for different materials and process windows. With single-hopper (GST-SF1) and dual-hopper (GST-SF2) options, it is suitable for single-material cladding as well as applications requiring quick material switching or dual-powder process development.
The GST-SF series focuses on the key user needs in cladding and DED: feeding accuracy, powder stability, and easy integration. It delivers high powder feeding precision (±1%), helping maintain uniform layer thickness and consistent bead geometry—critical for remanufacturing, wear protection, and additive build quality. The system supports 20–300 mesh powder ranges, covering common laser cladding and metal AM powders used for wear and corrosion resistance. A fully sealed hopper design helps isolate powder from oxygen and humidity influence, improving powder condition stability during operation and storage. For process flexibility, the platform offers rich configuration options, including optional heating and agitation and an optional non-stop powder refill solution, supporting longer continuous runs and reducing downtime. For automation and digital manufacturing requirements, multiple control methods are supported, including industrial I/O control and TCP/IP (Industrial Ethernet) communication, enabling straightforward integration with robots, CNC/PLC systems, and laser cladding workstations.
| Parameter | GST-SF1 | GST-SF2 |
|---|---|---|
| Hopper Quantity | Single hopper | Dual hoppers |
| Hopper Capacity Options | 1.5 L / 2 L / 3 L | 1.5 L / 2 L / 3 L (each) |
| Flow Range | 1–25 L | 1–25 L |
| Pressure Range | 2–6 bar | 2–6 bar |
| Powder Feeding Accuracy | ±1% | ±1% |
| Powder Feed Rate | 1–300 g/min | 1–300 g/min |
| Powder Size Range | 20–300 mesh | 20–300 mesh |
| Motor Type | Servo motor | Servo motor |
| Powder Disc Speed | 0–15 rpm | 0–15 rpm |
| Remote / Control Interface | I/O, TCP/IP | I/O, TCP/IP |
| Power Supply | 220 V | 220 V |
Related products
Mastering Core Technologies in High-Performance Metal Additive Manufacturing and Surface Treatment