Overview
The Weller D550 is a heavy-duty, dual-watt soldering gun engineered for professional and industrial applications requiring fast, reliable heat delivery. With selectable 260W and 200W output via a two-position trigger, the gun reaches working temperature in 6 seconds and maintains a stable temperature range from 900°F to 1100°F. The pistol-grip design and tin-plated copper tip deliver consistent solder flow for both routine maintenance and high-demand assembly work.
Key Features
- Dual-watt output: 260W (high) and 200W (low) selectable via two-position trigger
- 6-second heat-up time for rapid job starts and minimal downtime
- Heavy gauge, tin-plated copper tip for efficient heat transfer and durability
- Twin front-facing lights illuminate work area for precision soldering
- Balanced pistol-grip design reduces operator fatigue during extended use
- 6-foot, 2-wire power cord with 120V operation
- UL and cUL listed for safety and regulatory compliance
Technical Specifications
- Power Output: 260W (high) / 200W (low)
- Input Voltage: 120V AC
- Temperature Range: 900°F to 1100°F
- Heat-Up Time: 6 seconds
- Cord Length: 6 feet, 2-wire
- Tip Material: Heavy gauge, tin-plated copper
- Grip Design: Ergonomic pistol grip
- Illumination: Twin lights
- Certifications: UL listed, cUL listed
- Condition: Used
Typical Applications
- Industrial assembly and rework stations
- Control panel and electrical wiring maintenance
- Heavy-duty soldering in manufacturing environments
- On-site repair and field service work
- Educational and training facilities
- Hobby and semi-professional electronics work
Compatibility & Replacements
Compatible With
- Standard Weller soldering tips and accessories
- Any 120V AC electrical outlet with 15A capacity
- Industrial and workshop soldering stations
- Applications requiring dual-watt capability for heavy and light soldering
Replaces / Drop-In Replacement For
- Verify compatibility with your existing setup before ordering. The D550 uses standard Weller tip designs and is commonly used as a general-purpose heavy-duty replacement for comparable dual-watt soldering guns in industrial environments.
Works With
- Standard soldering flux and solder materials (lead-free and lead-based)
- Weller replacement tip kits (including 7250 standard tips and others)
- Professional workshop and industrial automation facilities
- Compliance with UL/cUL safety standards for general-purpose use










