Did you know? 217 °C

SAC305 is 96.5 percent tin, 3 percent silver and 0.5 percent copper. It melts around 217 degrees Celsius, some 34 degrees above the old eutectic tin lead alloy.

Browse soldering tips

Soldering and Desoldering Tips

N4 Series

The Hakko N4 series consists of hot air nozzles in four diameters: 2 mm (N4-01), 4 mm (N4-02), 6 mm (N4-03) and 8 mm (N4-04). These nozzles are designed for Hakko hot air tools and deliver focused heat for lead-free reflow soldering, heat shrink tubing, and hot-air removal of small SMD components.

4 items
1 manufacturer
Net prices plus VAT

Add to Wish List Add to Compare

Hot Air Nozzle 2mm - Hakko N4-01
€47.41
Add to Wish List Add to Compare

Hot Air Nozzle 8mm - Hakko N4-04
€47.41
Add to Wish List Add to Compare

Hot Air Nozzle 4mm - Hakko N4-02
€47.41
Add to Wish List Add to Compare

Hot Air Nozzle 6mm - Hakko N4-03
€47.41

Buying guide

How to choose N4 Series

What matters when choosing: properties, comparison and typical applications.

Technical features

⚙ Four nozzle diameters - 2 mm, 4 mm, 6 mm, 8 mm for different component sizes

✓ Focused heat delivery - narrow airstream reduces thermal stress on adjacent components

⛤ Compatibility - fits Hakko hot air tools of the corresponding product line

⚡ Durable construction - metal body for sustained use in production and service environments

Nozzle selection guide

Item	Opening diameter	Typical use
Hakko N4-01	2 mm	Very small SMD, fine rework
Hakko N4-02	4 mm	SOT, small SOIC, narrow heat shrink
Hakko N4-03	6 mm	Standard SMD, medium heat shrink
Hakko N4-04	8 mm	Larger components, wide heat shrink

Typical applications

Typical applications: Hot air rework on SMD components, shrinking insulating and protective sleeving, targeted heating of adhesive or potting areas, and service work on assemblies requiring precise localised heat without damaging adjacent parts.

FAQ

Frequently asked questions about N4 Series

What are Hakko N4 series hot air nozzles and their primary industrial applications?

Hakko N4 series hot air nozzles are precision-engineered components designed specifically for the Hakko FM 2029 hot air soldering iron, enabling controlled thermal processing in electronics manufacturing and repair applications. These nozzles facilitate focused hot air delivery for SMD component placement, BGA rework, heat shrink tubing applications, and precision desoldering operations in electronics manufacturing facilities, service centers, and research laboratories. The series provides uniform heat distribution characteristics essential for temperature-sensitive electronic component handling, making them indispensable tools for technicians working with miniaturized circuit boards and high-density electronic assemblies.

What are the key technical selection criteria for Hakko N4 series nozzle diameters?

Hakko N4 series nozzle selection depends primarily on component size and thermal mass requirements, with available diameters of 2mm, 4mm, 6mm, and 8mm to match specific application demands. The N4-01 2mm nozzle provides concentrated airflow for 0201 and 0402 chip components, while the N4-04 8mm variant delivers broader heat coverage for larger ICs and multi-pin packages requiring distributed thermal energy. Component thermal sensitivity, surrounding component density, and required heat-up rates determine optimal nozzle diameter, with smaller diameters offering precision control and larger variants providing efficient heating for thermally demanding applications.

Which international standards apply to Hakko N4 series hot air nozzles for professional electronics work?

Hakko N4 series nozzles comply with IEC 61010-2-010 safety requirements for electrical equipment used in laboratory environments and meet ISO 9001 quality management standards for consistent manufacturing processes. The nozzles are designed to support ESD-safe operations per IEC 61340-5-1 standards when used with appropriate grounded workstation configurations. Temperature control accuracy and thermal cycling performance align with J-STD-020 requirements for component-level thermal stress testing, ensuring reliable performance in professional electronics manufacturing environments where process traceability and quality documentation are mandatory.

What are the functional differences between Hakko N4-01, N4-02, N4-03, and N4-04 nozzle variants?

The Hakko N4 series variants differ primarily in outlet diameter and resulting airflow characteristics, with the N4-01 featuring a 2mm opening for precision work, N4-02 with 4mm for medium components, N4-03 at 6mm for larger assemblies, and N4-04 providing 8mm diameter for maximum coverage applications. Each variant maintains identical mounting interfaces for the FM 2029 hot air iron but delivers progressively broader heat patterns and increased air volume as diameter increases. The thermal profile and working distance optimization vary between variants, with smaller diameters requiring closer positioning for effective heat transfer while larger variants provide more forgiving working distances for complex assembly geometries.

What installation requirements and system compatibility apply to Hakko N4 series nozzles?

Hakko N4 series nozzles require exclusive compatibility with the Hakko FM 2029 hot air soldering iron system and utilize a proprietary threaded mounting interface ensuring secure thermal and mechanical connection. Installation involves threading the selected nozzle onto the iron's heating element housing until hand-tight, with proper seating confirmed by uniform gap closure around the mounting threads. The system requires 24V DC power supply through the compatible soldering station, and nozzle changes should only be performed when the iron temperature drops below 100°C to prevent thermal damage to the mounting threads and ensure operator safety during maintenance procedures.

What safety ratings and operating temperature ranges characterize Hakko N4 series nozzles?

Hakko N4 series nozzles operate safely within a temperature range of ambient to 500°C with the FM 2029 iron system, maintaining structural integrity and dimensional stability throughout the full thermal cycle range. The nozzles feature heat-resistant alloy construction rated for continuous operation at maximum system temperature without deformation or thermal degradation affecting airflow characteristics. Safety considerations include mandatory cooling period requirements below 100°C before handling, and the nozzles meet low-voltage directive compliance for 24V DC operation within the complete FM 2029 system architecture, ensuring operator protection during extended production use.

What maintenance schedule and service life expectations apply to Hakko N4 series nozzles?

Hakko N4 series nozzles typically provide 500-1000 hours of operational service life under normal electronics production conditions, with replacement intervals determined by airflow restriction, dimensional wear, or visible oxidation affecting heat transfer efficiency. Maintenance protocols require weekly visual inspection for debris accumulation, monthly airflow verification using appropriate flow measurement tools, and immediate replacement when nozzle bore diameter increases beyond 0.1mm of original specification. Cleaning procedures involve cooling to ambient temperature followed by compressed air purging and gentle mechanical cleaning of exterior surfaces, while avoiding aggressive cleaning methods that could damage the precision-machined internal airflow geometry essential for consistent thermal performance.