Hypertherm 220756 Nozzle Retaining Cap for HPR130XD/HPR260XD/HPR400XD
May 19, 2025|
View:1192The Hypertherm 220756 Nozzle Retaining Cap is a precision-engineered component designed for HPR400XD plasma systems operating at 130A. As part of Hypertherm's Duramax torch series, this retaining cap works in tandem with nozzle (220182), electrode (220181), and swirl ring (220179) to ensure optimal plasma arc constriction and cutting performance.
Key identifiers:
• OEM Part Number: Hypertherm 220756
• Compatible Systems: HPR130XD/HPR260XD/HPR400XD
• Current Rating: 30-130A (standard)/130A (peak)
• Primary Applications: Carbon steel, stainless steel, and aluminum cutting
2. Technical Specifications
Design Features:
• Multi-stage gas control channels for precise plasma arc shaping
• Copper alloy construction with silver plating for enhanced thermal conductivity
• Spring-loaded contact surface ensures consistent electrical connection
• Integrated O-ring groove (compatible with 058519 O-rings)
Performance Parameters:
Parameter | Specification |
Operating Pressure | 7.58-9.65 bar (110-140 psi) |
Torque Requirement | 15-20 N·m installation torque |
Thermal Tolerance | -20°C to 1,600°C intermittent |
Service Life | 300-500 pierces (depending on material thickness) |
Cutting Performance Matrix
Hypertherm 220756 Material-Specific Capabilities:
Material | Thickness | Cut Speed | Quality Level |
Carbon Steel | Steel 38mm | 1,260mm/min | Production Cut |
Stainless Steel | 45mm | 1,140mm/min | Fine Cut |
Aluminum | 38mm | 780mm/min | Standard Cut |
The Hypertherm 220756 retaining cap enables cutting technology through:
1. Axial vortex gas stabilization
2. Precise nozzle alignment (±0.05mm tolerance)
3. Active thermal management system
4. Installation & Maintenance
Hypertherm 220756 Installation Sequence:
1. Clean torch face with 220- grit sandpaper
2. Install new swirl ring (220179)
3. Position nozzle (220182) with alignment notch
4. Secure with 220756 retaining cap using torque wrench
5. Perform test arc at 40A for 10 seconds
Maintenance Best Practices:
• Replace when nozzle orifice becomes ovalized (>0.1mm deviation)
• Clean gas ports weekly with 0.5mm brass brush
• Lubricate threads with 027055 dielectric grease
