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Tip geometry drives heat transfer more than station wattage. A chisel tip moves several times the heat a conical tip manages on the very same unit.

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Soldering and desoldering tips

OKI soldering technology

The OKI SxP range covers soldering and desoldering tips for ESD-safe handpieces and rework stations. Available tip geometries include conical (from 0.4 mm), chisel (30°, 1-5 mm widths), bevelled (60°), hoof-shaped and knife-shaped, covering the full range from fine-pitch work to large-area THT joints. The RxP rework tips address SOIC, PLCC and related IC packages.

Long conical tips (e.g. SFP-CNL04, 0.4x14.9 mm) and angled variants (SFP-CNB05) provide access to restricted component locations on densely populated boards. RxP desoldering tips in slot and tunnel configurations support SOIC-8/14-16 and PLCC 32/44.

⚙ Conical (C/CN) - from 0.4 mm diameter, for fine-pitch SMD and 0402/0201 components

⚙ Chisel 30° (CH) - 1-5 mm width, for through-hole components and SMD rework

⚙ Bevelled 60° (BVL) - 1-14 mm contact area, for pad heating and ground-plane soldering

⚙ Hoof-shaped (DRH) - 0.5-3.5 mm, for SMD rework with solder addition

⚙ Knife-shaped (DRK) - 5 mm, for solder bridges and IC pin rework

⚙ Rework RxP (blade, slot, tunnel, quad) - SOIC-8/14-16, PLCC 32/44

Task	Recommended type	Example
SMD fine-pitch, 0402	Conical 0.4 mm	SFP-CN04
THT through-hole assembly	Chisel 30°, 1.5-2 mm	SFP-CH15, SFP-CH20
Ground-plane, pad heating	Bevelled 60°, 1-5 mm	SFP-BVL10, SFP-CH50
Restricted access areas	Long conical / angled	SFP-CNL04, SFP-CNB05
SOIC rework	Tunnel RxP	RFP-DL1, RFP-DL2
PLCC rework	Quad RxP	RFP-QD4 (PLCC 32), RFP-QD6 (PLCC 44)

Typical applications: SMT hand soldering and rework in electronics manufacturing, repair and touch-up of populated assemblies (SMD/THT), IC replacement (SOIC, PLCC) at rework stations, and laboratory or prototyping environments with varied soldering tasks.

What are soldering and desoldering tips and what industrial applications require them?

Soldering and desoldering tips are precision metal attachments that transfer heat from soldering stations to create or remove electrical connections on electronic components. These specialized tools are essential in electronics manufacturing, PCB assembly lines, automotive electronics production, telecommunications equipment servicing, and repair facilities where circuit boards require component-level modifications. The tips feature engineered geometries like conical, chisel, and knife shapes to accommodate different joint types, component sizes, and access angles on densely populated circuit boards.

What technical criteria determine the correct soldering tip selection for specific applications?

Soldering tip selection depends on tip geometry, thermal mass, and dimensional compatibility with target components and solder joints. For surface-mount components, conical tips like the OKI SFV-CNL14 with 1.4mm diameter provide precise heat application, while hoof-shaped tips such as the SFP-WV20 measuring 2x11.6mm offer broader contact area for drag soldering techniques. Knife-shaped tips like the SCV-DRK45A at 5x15.1mm dimensions enable efficient desoldering of through-hole components, and chisel tips with 30° angles such as the PHT-751367 measuring 3x16.5mm facilitate heat distribution across larger solder joints.

Which international standards govern soldering tip manufacturing and performance requirements?

Soldering tips must comply with IPC-A-610 acceptability standards for electronic assemblies, which define joint quality criteria and thermal transfer requirements. ISO 9001 quality management systems ensure consistent manufacturing tolerances and material specifications, while IEC 61340-5-1 addresses electrostatic discharge control requirements for ESD-sensitive component handling. RoHS compliance under EN 50581 restricts hazardous substances in tip coatings and base materials, ensuring environmental safety and compatibility with lead-free soldering processes mandated by international electronics regulations.

What are the differences between OKI SxP, SxV, and PHT series soldering tip variants?

The OKI SxP series features compact geometries with 11.6mm length dimensions optimized for fine-pitch surface-mount work and precision applications requiring minimal thermal mass. SxV series tips offer extended lengths up to 18.7mm with enhanced thermal capacity for through-hole components and higher power soldering operations. PHT series tips incorporate specialized coatings and reinforced construction for extended service life in high-volume production environments, with variants like the PHT-754627 featuring mini hoof geometry at 1x15mm for accessing restricted spaces between components.

What installation requirements and compatibility factors apply to soldering tip mounting systems?

Soldering tips require compatible heating element interfaces and proper thermal coupling to achieve specified operating temperatures and heat transfer efficiency. Most industrial soldering stations utilize standardized cartridge-style mounting systems with spring-loaded retention mechanisms ensuring secure tip installation and optimal thermal contact. The tip-to-heater interface must maintain consistent pressure and electrical conductivity for temperature sensor feedback, while quick-change mechanisms enable rapid tip exchanges during production runs without tool disassembly or recalibration procedures.

What safety ratings and operating parameters define soldering tip performance limits?

Professional soldering tips operate within temperature ranges from 200°C to 450°C with thermal stability tolerances of ±5°C for consistent joint formation and component protection. ESD-safe variants maintain surface resistivity values between 10^6 to 10^9 ohms per IEC 61340 standards, preventing electrostatic discharge damage to sensitive semiconductor devices. The tips feature protective coatings resistant to oxidation and thermal cycling, with working voltages typically limited to 24V DC for operator safety and compliance with low-voltage equipment directives in industrial environments.

What maintenance schedules and service life expectations apply to industrial soldering tips?

Soldering tips require daily cleaning with damp sponges or brass wool to remove flux residue and oxidation buildup that degrades heat transfer efficiency. Tip replacement intervals depend on usage intensity but typically range from 200 to 1000 operating hours based on temperature settings, flux chemistry, and handled materials. Visual inspection for wear patterns, pitting, or geometric deformation should occur during each shift change, while tip conditioning with fresh solder and flux activators maintains optimal wetting characteristics and extends service life in high-volume production applications.

Soldering and desoldering tips

Tip geometries and dimensions

Selection by application

Typical applications