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1500870 - Harris 6290-4 Acetylene Cutting Tip, Size 4 (3-Inch Capacity)

Packaging: 1 of each
$27.16/ea $18.11/1 of each only $18.11/eaSave 33%

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SKU: HAR1500870 Categories: , ,

OVERVIEW

High-Performance Acetylene Cutting with Harris 6290-4

The Harris 6290-4 Cutting Tip is a premium-grade consumable designed for industrial oxy-acetylene cutting applications. Engineered by Harris, a global leader in gas apparatus, this tip exemplifies the brand's commitment to quality, safety, and performance. The 6290 series is the industry standard for Harris torches, featuring a robust single-piece copper construction that withstands high heat and harsh working environments. This specific Size 4 model is calibrated to deliver a precise oxygen stream capable of severing steel plates up to 3 inches in thickness, making it an essential tool for fabrication shops, scrap yards, and structural steelwork.

One of the defining features of the Harris 6290-4 is its seating mechanism. Unlike some competitor designs that rely on O-rings or tapered friction fits, Harris utilizes a metal-to-metal flat seat. This design ensures a positive, leak-proof seal between the tip and the torch head without the need for thread sealants or tape. This not only simplifies maintenance and tip changes but also enhances safety by reducing the risk of flashback caused by leaks. The tip's internal geometry is machined to strict tolerances, ensuring a stable preheat flame and a laminar cutting oxygen stream that produces smooth, square cuts with minimal slag accumulation.

Designed for general purpose preheating, the 6290-4 provides ample heat input to start cuts rapidly on relatively clean steel. While it is optimized for acetylene, the most efficient fuel gas for cutting steel, users must ensure they are using the correct mixer and torch settings to maintain optimal flame characteristics. Whether you are processing structural beams or performing demolition work, the Harris 6290-4 delivers the consistency and reliability required for professional results.

Technical Specifications

  • Model: 6290-4
  • Gas Service: Acetylene
  • Cutting Capacity: 3 inches (76mm)
  • Construction: One-piece Copper
  • Compatibility: All Harris Cutting Torches
Additional Information
Brand:Harris
Item:Cutting Tip
Fuel Gas:Acetylene
Cutting Capacity:3"
Fits Which Torch:All Harris
Packaging Description:1-per-each
Tip Size:4
Construction:One-Piece
Seat Type:Metal-to-Metal (Flat Seat)
Preheat Type:General / Medium
Material:Copper
Oxygen Setting:55-65 psi
Fuel Setting:10-15 psi

INCLUDED

  • 1x Harris 6290-4 Acetylene Cutting Tip

APPLICATIONS

  • Structural Steel Fabrication
  • Heavy Equipment Repair
  • Scrap Cutting and Demolition
  • Shipbuilding and Repair
  • General Industrial Maintenance
  • Pipeline Construction

FAQ

The Harris 6290-4 cutting tip is rated to cut steel up to 3 inches (approximately 75mm) thick.

No, the 6290 series is designed specifically for Acetylene. For Propane or Natural Gas, you would need a Harris 6290-NX style tip.

No, this tip is designed for Harris style torches which use a flat seat. It is not compatible with Victor torches which typically use a cone-shaped seat.

No, Harris tips utilize a metal-to-metal flat seat design. You should never use thread tape or sealants, as the mechanical seal is sufficient and safer.

You should use a standard tip cleaner set. Select the wire size that fits the preheat and cutting orifices snugly but without forcing it, and move it back and forth to remove slag or carbon buildup.

The Harris 6290-4 is a single-piece copper cutting tip, which is standard for acetylene tips to withstand the heat and provide proper flame characteristics.

While exact settings can vary by application, a common starting point for a size 4 tip cutting 3-inch steel is approximately 45-50 PSI for cutting oxygen and 5-10 PSI for acetylene.