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Postalloy® 
216HD
Description
Sugar Mill Roll
Sugar Mill Roll

Postalloy® 216HD (Chapisco), for Roll-Arcing, is primarily engineered for the sugar cane industry and is to be used while the sugar cane roll is rotating. Postalloy® 216HD produces a rough weld deposit that will aid in pulling, tearing and crushing the sugar cane as it feeds through the rolls during processing. Also used for sugar mill rolls hooks (Picote).

Postalloy® 216HD is a chromium carbide tubular hardfacing electrode with much higher percentages of carbide forming elements contained in the core than with conventional flux-coated electrodes. It's tubular construction allows it to be used at higher deposition rates and much lower current settings than traditional flux-coated electrodes. 1/4" (6.0mm) is used around 100 amps. Weld chemistry produces a chromium carbide weld deposit for overlaying surfaces exposed to high abrasion and medium impact.

Specifications
Product Type

Flux-coated Tubular Electrode


Weld Deposit Properties
Hardness  
58-62Rc
Deposit Thickness  
2-3 passes
Relief checks readily to prevent stress build-up.  
Cannot be flame-cut.  

Applications

Sugar mill rolls (Chapisco)
Sugar mill roll hooks (Picote)
Cane rakes & combs
Casing cane crushers

Outstanding Features

  • Can be applied while the rolls are operating

  • Excellent AC or DC operation

  • 90% efficient

  • Moisture resistant coating, even under severe weather or high humidity

  • All diameters 1/4" (6.0mm), 3/8" (9.5mm), and 1/2" (12.7mm) will fit standard electrode holders


Hammers & bits
Fan (ID) boiler
Fibrizor hammers (Martillo)
Cane knives (Cuchillas)

  • Easy out-of-position weldability with the 1/4" diameter

  • High metal recovery - NO SLAG

  • Low amperage

  • High deposition rates, up to 3 times faster than ordinary electrodes


Postalloy® 216HD    Welding Parameters
 
Current: AC or DC Reverse Polarity
Diameter Amps
1/4" (6.0mm)81-120
3/8" (9mm)150-180
1/2" (12mm)180-325

Welding Procedure


Packaging Options
Diameter
Standard Packaging
1/4" (6.0mm)
Resealable Plastic Box
3/8" (9mm)
Resealable Plastic Box
1/2" (12mm)
Resealable Plastic Box