Center Pin Tin-Wire Welding Machine
for RF Connectors

Automatic, vision-guided soldering of RF coaxial connector center pins — SMA, SMB, SMC, 178, GPS. ±0.02 mm accuracy, >98% first-pass yield, MES-ready. Built by a China manufacturer, shipped worldwide.

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Why Automate Center-Pin Welding?

In RF connectors, the center pin carries the signal. A poor solder joint means higher insertion loss, return loss (VSWR) failure, or field returns. Manual soldering is slow and inconsistent:

  • Cold joints & voids — 15–25% scrap rate on manual lines
  • Inconsistent fillet — joint height varies part to part
  • Flux residue — needs cleaning, risks corrosion
  • Low throughput — ~60 pcs/h per skilled operator

Our machine eliminates these with automatic tin-wire feeding, vision positioning and closed-loop temperature control — one operator runs multiple stations.

Center pin tin-wire welding machine for RF connectors

Technical Specifications

±0.02mm
Positioning Accuracy
400–700
Pcs / Hour
>98%
First-Pass Yield
SMA·SMB·178
Connector Coverage
Auto
Tin-Wire Feeding
OPC-UA
MES Integration
ParameterSpecification
Applicable connectorsSMA, SMB, SMC, 178, GPS, F-type (BNC/TNC/MCX with tooling)
Center pin materialBrass, beryllium copper, gold-plated
Solder methodAutomatic tin-wire feeding, programmable length
PositioningVision-guided, ±0.02 mm
Temperature controlClosed-loop, recipe per part
Cycle time5–9 s per pin (depends on profile)
Throughput400–700 pcs/h
Power220V / 50–60 Hz, single phase
Data exportOPC-UA / MES API, per-cycle logging
Footprint~0.6 m × 0.8 m

How It Works

Five automated steps replace a skilled hand-solderer — consistent joints every cycle.

01

Load & Clamp

Operator or feeder places the connector body into the fixture; pneumatic clamp secures it with repeatable orientation.

02

Vision Position

Camera locates the center pin tip within ±0.02 mm and aligns the solder head automatically.

03

Tin-Wire Feed

Programmable tin wire feeds a precise length to the joint — no manual cutting, no waste.

04

Controlled Solder

Closed-loop temperature profile melts and forms the fillet; recipe stored per part number.

05

Inspect & Log

Vision checks joint height/fillet; result + temperature curve logged to MES. Good parts eject, rejects flag.

Applications & Materials

📡

RF / Microwave Connectors

SMA, SMB, SMC, BNC, TNC, F-type, MCX center-pin soldering for antenna and cable assembly factories.

🛰️

GPS & 178 Antennas

Compact GPS and 178-series antenna center pins where manual soldering scrap is highest.

🏭

Telecom & IoT Modules

WiFi/LoRa/IoT device RF connectors produced at volume with consistent signal integrity.

Why Buy From Lanneas

Technical

  • Vision + closed-loop temp: joint consistency manual soldering can't match
  • Per-part recipes: switch connectors in minutes, parameters auto-loaded
  • MES-ready: OPC-UA export for aerospace/telecom audit trails
  • Modular: pairs with our crimping & retention-test stations into one line

Commercial

  • Manufacturer direct: Shenzhen factory, no trading-company markup
  • MOQ 1: start with a single station, scale later
  • Terms: FOB Shenzhen / CIF, 30/40/30 payment
  • Support: English docs, remote diagnostics, 12-mo warranty (24-mo opt.)

Automate Your Center-Pin Soldering?

Send your connector drawing or sample — we'll confirm fit and quote within 48 hours.

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