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Since 2008, JJY has dedicated itself to delivering precision soldering solutions. As a trusted partner to 1000+ global clients – including OEMs, EMS providers, and distributors – we provide end-to-end electronic soldering systems. Our product portfolio spans solder paste, bars, wires, fluxes, and red glue.

Leveraging advanced flux and alloy technologies, JJY ensures seamless compatibility between solders and assembly scenarios. From material innovation to process excellence, JJY drives efficiency and quality.

Jiajinyuan has been dedicated to providing customers with suitable soldering solutions for 12 years

JJY ensures rigorous process control and continuous refinement at every stage.

无铅锡条
Lead-Free Solder Paste

Solder Paste

  • The weld points are firm, bright and full

    The weld points are firm, bright and full

    With 17 years of R&D and production experience, we have scientifically mastered modern process formulas, ensuring that the solder paste is highly compatible with the soldered products. The solder joints are firm, bright, uniform, full and free of solder beads.

  • Low residue, no need for cleaning

    Low residue, no need for cleaning

    We have developed and formulated a no-wash and environmentally friendly flux paste, which leaves little residue after welding, has high insulation resistance, a clean board surface without corrosion, and forms a protective layer to prevent the re-oxidation of the base material.

  • It has strong wettability and good tin crawling

    It has strong wettability and good tin crawling

    High-performance thixotropic agents are added to the solder, making the solder paste highly active. The molten solder paste significantly wets the solder pad, reducing the phenomenon of false soldering during the soldering process.

  • The printing is stable and has good demolding properties

    The printing is stable and has good demolding properties

    The tin powder particles have good roundness and uniform size. During printing, there are no trailing, sticking or splashing phenomena. There is no collapse, sharp or continuous tin connection during molding. The viscosity change is small during continuous printing, and it does not dry out. The components do not shift.

无铅锡条
Lead-free Solder Wire

Solder Wire

  • Stable performance and safe to use

    Stable performance and safe to use

    Precise process control ensures that the rosin flux is evenly and continuously distributed, with no interruption of rosin. The soldering speed is fast, without sharpening or splashing. Customized tin wires with high compatibility can be made according to requirements.

  • The weld points are bright and the workmanship is excellent

    The weld points are bright and the workmanship is excellent

    Strictly adhering to national standards, it is made of high-purity virgin refined tin, electrolytic copper and pure silver materials, with few elemental impurities, sufficient degree, bright surface of the tin wire, uniform winding without tangling, little smoke and no unpleasant smell during welding, bright and firm weld points, and strong reliability.

  • It has good wettability and is easy to tin

    It has good wettability and is easy to tin

    The self-developed flux can remove the oxide layer and surface oil stains of the soldered material, reduce the surface tension of the soldered material, increase the welding area, has good wettability, is easy to tin, and has no bridging.

  • Luoyang Iron has less scum and requires no cleaning

    Luoyang Iron has less scum and requires no cleaning

    Adopting a scientific rosin flux formula, it is strictly produced in accordance with national and EU standards, ensuring excellent solderability while guaranteeing low corrosiveness of the flux, fast welding speed and minimal residue after welding.

无铅锡条
Lead-Free Solder Bar

Solder Bar

  • The speed of going to tin is very fast

    The speed of going to tin is very fast

    Strictly adhering to national standards, it is made of high-purity primary refined tin, electrolytic copper and pure silver materials. After melting, it has low viscosity, good wettability, high fluidity, excellent solderability and is easy to solder, effectively improving the welding efficiency.

  • Strong antioxidant capacity

    Strong antioxidant capacity

    The proprietary anti-oxidation alloy technology endows the tin bars with unique anti-oxidation properties, ensuring a very low oxidation slag production rate during the welding process and reducing unnecessary waste.

  • The weld points are bright and firm

    The weld points are bright and firm

    After special process adjustment and refining treatment, the metallographic particles are very fine, the weld points are firm, bright and full, without false welding, voids, sharp points or bridging phenomena, and there are no residual impurities after welding.

  • The slag discharge is very low-tech

    The slag discharge is very low-tech

    High-antioxidant formulas are combined with free technical services provided by engineers, such as reasonable setting of temperature, wave height, chain speed, time of slag removal and tin adding, inspection and correction of components, flux compatibility, etc. Control the slag discharge rate at7~20%. High price for tin slag recycling or exchange for new tin bars.

We provide not only products, but also a complete set of soldering solutions

JJY's soldering solutions for the electronics industryJJY's soldering solutions for the electronics industry

Electronic components, sensors, switches, etc. are usually mass-produced in a highly competitive market. The market demands that these products have highly efficient production processes during the manufacturing process, achieving high output, high pass rates, and low scrap rates, thereby reducing the production costs of enterprises. The welding process is of great significance......

JJY LED Industry Soldering SolutionsJJY LED Industry Soldering Solutions

LED is known as the fourth-generation lighting source or green light source. It features energy conservation, environmental protection, long lifespan and small size, and is widely used in various fields such as indication, display, decoration, backlight, general lighting and urban night scenes. The LED industry is currently in a period of stable development, and its future cons......

JJY's soldering solutions for the photovoltaic cell industryJJY's soldering solutions for the photovoltaic cell industry

JJY continuously assists photovoltaic companies in manufacturing high-quality solar panels with high pass rates and long-term reliability. At the same time, it can reduce production costs for customers through high process efficiency. In the production process of photovoltaic cells, dispensing solder paste is required for solar cell solder sheets and wires, diode soldering betw......

JJY's soldering solutions for the power battery industryJJY's soldering solutions for the power battery industry

In the manufacturing process of power batteries, the selection of welding methods and processes can directly affect the quality, safety and cost of the batteries. Whether it is the poor quality of the selected solder material or the mismatch between the solder material formula and the product to be soldered, this will cause a series of soldering problems. For instance, excessiv......

JJY Intelligent Automotive Industry Soldering SolutionsJJY Intelligent Automotive Industry Soldering Solutions

The intelligent vehicle industry is a sunrise industry of the future, and users' demand for intelligent vehicles will gradually increase. The welding of intelligent vehicles mainly involves the welding of the vehicle body, which is composed of the welding of the vehicle frame, engine hood, trunk lid, and left and right door panels. As users put forward higher demands for drivin......

JJY's 5G communication industry soldering solutionJJY's 5G communication industry soldering solution

The 5G communication industry has ushered in a new opportunity for accelerated development. Entering 2020, the construction of 5G has significantly accelerated. Undoubtedly, 5G communication technology is the core development technology of the future, a new technology for realizing the Internet of Things, the Internet of Vehicles, and the interconnection of all things. At the s......

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Customize the formula according to your process requirements.

  • R&D Team R&D Team
  • QualityQuality
  • ExperienceExperience
  • TechnicalTechnical

Advanced R&D TeamAdvanced R&D Team
Custom Solutions for Clients
Advanced R&D Team

Our experts tailor solder alloys, flux activity levels, cleaning methods, and specialty properties to your process. We optimize welding parameters and recommend application-specific solutions, boosting your first-pass yield.

Advanced R&D Team

Rigorous Quality ControlRigorous Quality Control
Consistent Performance Stability
Rigorous Quality Control

5,000㎡ facility with ISO9001-certified and production & testing equipments.
Full-process inspection: raw materials, processes, and finished products.
SGS-certified eco-compliance: ROHS, REACH, ELV.

Rigorous Quality Control

17 Years Experience17 Years Experience
Superior Welding Results
17 Years Experience

High-purity tin with lower dross rate than industry average.
Fast wetting | Robust & glossy joints | Zero defects (cold joints, bridging, collapse,etc.).
Factory-direct pricing for maximum cost efficiency.

17 Years Experience

24/7 Technical Support24/7 Technical Support
Onsite Engineers Services
24/7 Technical Support

Provide technical support: 24-hour response | 72-hour full resolution.
Free material replacement & solder dross recycling.
Pre-sales consultation & post-sales troubleshooting.

24/7 Technical Support

  

JJY Welcomes Polish Partners: Visit & Explore Global-Ready Soldering Solutions

JJY Welcomes Polish Partners: Visit & Explore Global-Ready Soldering Solutions

2023years4month23On this day, two Polish clients came from afar to visit our company for on-site inspection and investigation. These two clients have been in contact with our foreign trade salesperson......

JJY | A German client was invited to our company for an on-site inspection

JJY | A German client was invited to our company for an on-site inspection

2023years4month19On this day, a client from Germany was invited to our company for an on-site inspection. In order to enable the client to have a comprehensive understanding of JJY's development histo......

JJY | European customers came to our factory for inspection and to discuss cooperation on the solder paste project

JJY | European customers came to our factory for inspection and to discuss cooperation on the solder paste project

2023years10month10On this day, we were very glad to welcome two European clients to Shenzhen JJY Industrial Technology Co., Ltd. for an inspection and to discuss cooperation on the solder paste projec......

JJY Customer Case - A Certain Automobile Company in Shenzhen

JJY Customer Case - A Certain Automobile Company in Shenzhen

Intelligent vehicles are based on ordinary cars and are equipped with devices such as sensors, controllers, and actuators. They achieve intelligent information exchange with people, vehicles, roads, e......

JJY Customer Case - A Certain Outdoor lighting Company in Guangdong

JJY Customer Case - A Certain Outdoor lighting Company in Guangdong

Guangdong Outdoor Lighting Co., Ltd. specializes in providing customized mid-to-high-end outdoor landscape lights and is an LED landscape light manufacturer with over 10 years of production experience......

JJY Customer Case - A Certain Energy technology Company in Shenzhen

JJY Customer Case - A Certain Energy technology Company in Shenzhen

The welding process is a very important step in the production of solar cell modules. The production efficiency of this process will directly affect the qualification rate of solar cell modules. It is......

Customized Hotline:+86 18938660310

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Focusing on quality and service

Established in 2008, JJY is a custom solder solutions provider specializing in R&D, production, and technical services for solder paste, wire, and bars. With 16+ years of expertise, we empower 1000+ global clients across consumer electronics, automotive, and aerospace industries. Core Strengths ✓ High-Performance Pastes: QFN ultra-wetting, low-voiding, military-grade alloys (Sn62Pb36Ag2), and LED/......

Company Profile
Company Profile

contact

  • Tel:+86 0755 88366766
  • Phone:+86 18938660310
  • Email:sales@jjyhanxi.com
  • Address:13/F,12/F, Building No. B,Qinghu Technology Park,Qingxiang Rd.,Qinghu Community, Longhua Subdistrict,Longhua District,Shenzhen City,GUANGDONG Province,P.R.C.(518027)
  • Guangdong Public Security Backup 44030902002666 name
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  • JJY TIN SOLDERWeChat official account
SHENZHEN JIAJINYUAN INDUSTRIAL TECHNOLOGY CO., LTD.@All rights reserved. Low temperature tin wire, lead-free solder paste, lead solder paste