Description
NIHONWELD SPRAYZUCAR 90 is a premium high alloy spray-type hardfacing electrode developed specifically for the repair and maintenance of crushing rollers used in sugar mills. Engineered through extensive research, this electrode provides outstanding wear resistance and superior hardfacing performance for demanding industrial applications.
The electrode maintains a stable self-regulating arc that effectively bonds hard metal globules onto cast iron mill rollers. It deposits globular protrusions of complex martensitic chromium carbide alloy on roller teeth, significantly improving frictional properties and enhancing the crushing efficiency of sugar cane processing operations.
SPRAYZUCAR 90 helps eliminate the need for chevrons, resulting in increased surface contact area with bagasse. This leads to greater pressure, lower humidity, and improved sugar extraction performance while extending the operational life of crushing rollers.
Key Features
- High alloy spray-type hardfacing electrode
- Specially developed for sugar mill rollers
- Excellent abrasion and wear resistance
- Stable self-regulating arc performance
- Deposits hard chromium carbide globules
- Improves friction and crushing efficiency
- Enhances surface contact with bagasse
- Increases roller lifespan and extraction efficiency
Typical Chemical Composition of Weld Metal Deposits (%)
| C | Si | Mn | Cr |
|---|---|---|---|
| 4.00 | 1.20 | 1.80 | 31.00 |
Hardness of Weld Metal
| Hardness Type | Value |
|---|---|
| Vickers (Hv) | 740 |
| Rockwell (HRC) | 60 |
Size and Recommended Current Range (DC+)
| Diameter | Length | Current Range |
|---|---|---|
| 3.2 mm | 450 mm | 120 – 170A |
| 4.0 mm | 450 mm | 160 – 210A |
| 5.0 mm | 450 mm | 200 – 250A |
Welding Positions
All Positions Except Overhead
Applications
- Sugar mill crushing rollers
- Hardfacing and resurfacing work
- Wear-resistant industrial applications
- Roller maintenance and repair
- Heavy abrasion environments
- Sugar extraction equipment maintenance





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