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Our Story

From a Workshop to a Global Welding Brand

Layjun Welder focuses on one job — making thermocouple junctions that are repeatable, auditable and cheap to produce. We work with a dedicated engineering team and an in-house manufacturing group in Shenzhen (Guangdong). The CD welding lines that build the TC-100 family have been running for the global export market for over 15 years. Every machine that leaves the line carries an ISO 9001 certificate, an ISO 17025 calibration report and a unique serial number.

The range now spans nine models across six categories. The TC-100 benchtop family — TC-100H horizontal, TC-100V vertical, TC-100B butt-weld and TC-100I inclined — was the starting point. The TC-50P added cordless field repair, the TC-20L covered laboratory fine wire down to 0.08 mm, the TC-300T brought argon-purged micro-TIG for noble-metal thermocouples, the TC-600S handled 525-joule stud and surface work, and the TC-300A extended the same arc-discharge technology to multi-station automatic cells at 1,800–2,400 pcs/h.

Wherever you need a thermocouple junction — be it an HVAC ignition pin, an automotive O₂ sensor, an EV battery tab or an aerospace exhaust probe — there is a machine in the range that fits your cell and your operator. The same argon-envelope recipe files across every chassis, so qualification at one site becomes qualification at every sister plant.

Capabilities

What Makes Our Factory Different

Application-Led Engineering

Tell us your wire type, gauge, and target throughput. Our engineers model cycle time and joint integrity, then ship welded samples within 5 business days for evaluation at your facility.

CD Welding Experience

Our Shenzhen production team building the TC-100 family has been operating CD welding lines for over 15 years, shipping to HVAC, automotive and consumer-electronics OEMs worldwide.

Sample Welding Service

Mail us a spool of your wire and one of your connectors. We weld 20–30 sample junctions and return them with cycle-time, bead-photo and EMF-drift data — at no charge for qualification projects.

Quality System

Our Shenzhen plant operates an ISO 9001:2015 quality management system. Every unit undergoes burn-in testing, bead-quality inspection, and parameter calibration before shipping. Each unit ships with an ISO 17025 calibration certificate.

Global Logistics

EXW, FOB Shenzhen, CIF, DAP and DDP terms are all available. Air freight via DHL / FedEx; sea freight via Shenzhen Yantian or via our Rotterdam and Houston partner warehouses for shorter delivery.

After-Sales Support

12-month limited warranty, lifetime technical support in EN / ES / DE / FR / JA / ZH. Remote diagnosis via TeamViewer. Spare-parts kits stocked for 7-year minimum availability at our Rotterdam and Houston hubs.

Certifications & Compliance

Quality You Can Audit

All Layjun Welder products are manufactured under ISO 9001:2015 quality management and ISO 14001:2015 environmental management systems. Products carry CE, RoHS, and UL marks for global market access.

ISO 9001:2015 Certified

ISO 9001:2015

Quality Management System certified by TUV.

ISO 14001:2015 Certified

ISO 14001:2015

Environmental Management System certified.

CE Marking

CE Marking

Compliant with EU Low Voltage & EMC Directives.

RoHS Compliance

RoHS 3.0

Hazardous substance compliant for EU market.

UL Listing

UL Listed

UL 61010-1 safety standard for North America.

Global Presence

Serving 60+ Countries Across Five Continents

🇺🇸 North America

Authorized distributor in Houston, TX serving US & Canada. UL-listed products, NAFTA-compliant documentation, USD pricing via wire transfer or L/C.

🇪🇸 Europe

CE-marked products, EU warehouse in Rotterdam for fast distribution. VAT-inclusive pricing, EUR invoicing, REACH compliance documentation.

🇮🇹 Southeast Asia

Strong presence in Vietnam, Thailand, Indonesia, and Malaysia. Local language support, ASEAN tariff documentation, SGD/THB/VND pricing.

🇰🇪 Middle East

Active projects in Saudi Arabia, UAE, and Turkey. Arabic documentation available, GCC compliance, AED/SAR pricing, DDP Dubai shipping.

🇧🇷 Latin America

Distributor in São Paulo, Brazil serving LATAM. Spanish & Portuguese documentation, USD pricing, sea freight via Santos port.

🇨🇳 Greater China

Manufacturing in Shenzhen (Guangdong). Direct sales in mainland China, Hong Kong SAR China, and Taiwan China. RMB / HKD / TWD invoicing.

Legal entity & E-E-A-T

Who you are actually buying from

Export buyers and their compliance teams need a named legal entity, a verifiable contact and a clear statement of who manufactures the goods. Here it is.

Registered exporter

  • Trading nameLayjun Welder
  • Legal nameShenzhen Layjun Technology Co., Ltd.
  • Chinese name深圳市雷军科技有限公司
  • Registered inShenzhen, Guangdong, PRC
  • Role in the saleExporter & legal manufacturer of record

How to reach us

What we can evidence

  • Quality systemISO 9001:2015
  • EnvironmentalISO 14001:2015
  • EU complianceCE (LVD + EMC)
  • SubstancesRoHS 3 declaration
  • North AmericaFCC Class A

Numbered certificate copies are issued with each quotation — see the certifications page for scope and status of every item.

On the figures on this page

We would rather show fewer numbers than unverifiable ones. The throughput, wire-range, energy and dimensional figures published here come from our own engineering datasheets and from the units we have shipped. Where a claim depends on your specific wire, jig or operator, we say so rather than quoting a best case.

Certificate numbers, accreditation IDs and third-party listing references are not published on this website. They are supplied as numbered copies — together with the measured test data for your unit — when you request a quotation. That way your compliance team reviews the primary document, not a marketing summary.

Want to Visit Our Factory or Become a Distributor?

We welcome factory audits, video tours, and distributor applications. Contact us to schedule a visit or request a distributor package.

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