2UUL FD31 K Soldering Iron Tip for C115 Soldering Station – Precision Soldering Tip for Mobile Repair & Micro Soldering

The 2uul FD11 Big-K Soldering Iron Tip inspired 2UUL FD31 K Soldering Iron Tip is a high-performance replacement soldering cartridge designed for C115 soldering stations and precision repair applications. Built for professional technicians, mobile repair engineers, and electronics hobbyists, this soldering tip delivers exceptional thermal conductivity, ultra-fast heating, and stable temperature recovery for accurate micro soldering work.

Whether you are repairing smartphones, working on PCB boards, handling IC rework, or performing delicate soldering tasks on compact electronic components, the 2UUL FD31 K soldering tip offers the reliability and efficiency needed for professional-level performance. The advanced integrated heating core design ensures rapid heat transfer directly to the soldering point, minimizing heat loss and improving work precision.

Manufactured using high-quality copper alloy material with anti-oxidation coating, the FD31 K tip is engineered for long service life and consistent soldering performance. Its knife-shaped K tip design makes it ideal for drag soldering, tin removal, solder bridging, and precision component alignment during repair operations.

Designed specifically for compatibility with C115/T115 soldering stations, this soldering iron tip supports efficient low-temperature soldering while protecting sensitive electronic components from overheating. Compared to traditional soldering tips, the C115 series heats significantly faster and maintains stable working temperatures during continuous operation.

The compact and lightweight structure allows technicians to perform intricate soldering work comfortably for extended periods. This makes the 2UUL FD31 K tip highly suitable for motherboard repair, BGA rework, chip-level servicing, and precision electronics assembly.

Key Features of 2UUL FD31 K Soldering Iron Tip

• Compatible with C115/T115 soldering stations

• Knife-shaped K tip for precision soldering

• Rapid heating technology with fast temperature recovery

• Integrated heating core for efficient thermal transfer

• Anti-oxidation coating for extended durability

• Ideal for mobile phone repair and PCB micro soldering

• Stable thermal performance during continuous usage

• Compact design for delicate electronic repair tasks

• Low-temperature high-efficiency soldering capability

• Professional-grade soldering performance

The advanced heating system concentrates heat directly at the soldering point, enabling efficient operation without unnecessary thermal spread. This improves soldering quality while reducing the risk of damaging nearby components. According to C115 series specifications, the tip can reach working temperature in approximately 2 seconds, significantly faster than conventional soldering systems.

Specifications Table

Professional Micro Soldering Performance

The 2UUL FD31 K soldering iron tip is specially designed for technicians who require precise heat control during micro soldering operations. The K-type knife edge provides excellent surface contact, making it ideal for drag soldering and precision tinning tasks.

This soldering tip is widely used in:

• Smartphone motherboard repair

• IC chip replacement

• Jumper wire soldering

• PCB maintenance

• BGA rework applications

• SMD component soldering

• Laptop motherboard servicing

• Electronics prototyping

The integrated heating technology allows the soldering tip to transfer heat efficiently without significant energy loss. This helps maintain stable working temperatures even during continuous operation, improving soldering quality and reducing downtime.

Compared to conventional soldering tips, C115 cartridge systems provide quicker response times and more accurate temperature stabilization. This improves productivity for repair professionals working on sensitive electronic circuits.

Fast Heating & Stable Temperature Recovery

One of the major advantages of the 2UUL FD31 K soldering tip is its ultra-fast thermal response. Traditional soldering stations may require 30–90 seconds to reach operating temperature, while C115 cartridge tips can heat up to 350°C in approximately 2 seconds.

The rapid heating feature helps technicians save valuable repair time while ensuring efficient solder flow during delicate operations. Fast temperature recovery also minimizes thermal fluctuations when soldering multiple joints continuously.

Benefits include:

• Reduced waiting time

• Improved repair efficiency

• Better solder joint quality

• Lower oxidation buildup

• Enhanced component safety

• Consistent thermal performance

The low-temperature high-efficiency soldering capability also helps protect sensitive components from thermal stress, making this tip suitable for advanced electronics repair work.

Durable Anti-Oxidation Construction

The 2UUL FD31 K soldering tip is manufactured using premium-grade copper alloy material with a durable anti-oxidation coating. This construction helps extend the lifespan of the soldering tip even under frequent professional use.

The corrosion-resistant surface reduces oxidation buildup and improves solder wetting performance over time. Proper maintenance and regular cleaning can further increase tip longevity and maintain optimal thermal conductivity.

Its rugged build quality makes it ideal for repair shops, electronics laboratories, and professional soldering workstations where reliability is essential.

Ideal for Mobile Repair Technicians

Modern smartphone motherboards and compact electronic devices require highly precise soldering tools. The FD31 K soldering tip provides the accuracy needed for handling miniature SMD components and ultra-fine PCB traces.

The slim profile and short tip-to-grip distance offer improved hand control during detailed soldering operations. Many technicians prefer C115-based systems for micro soldering due to their lightweight feel and precise handling characteristics. 

Whether you are replacing charging ICs, repairing damaged pads, or working on CPU reballing tasks, this soldering tip offers dependable performance for advanced repair applications.

Why Choose 2UUL FD31 K Soldering Tip?

• Professional-grade precision soldering

• Fast heating with efficient thermal transfer

• Long-lasting anti-oxidation construction

• Excellent compatibility with C115 stations

• Ideal for mobile and motherboard repair

• Stable temperature performance

• Lightweight and easy to control

• Suitable for delicate electronics work

The 2UUL FD31 K soldering iron tip is an excellent choice for professionals looking for reliable, high-efficiency soldering performance in precision electronics repair environments. With rapid heat-up capability, durable construction, and superior thermal stability, this soldering tip helps improve repair accuracy and overall workflow efficiency.