Editorial Technical Reference

Automated Surface-Mount Technology Assembly Line

This page explains how Automated Surface-Mount Technology Assembly Line is classified within Manufacture of Communication Equipment. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

Integrated production system for automated placement and soldering of electronic components onto printed circuit boards.

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Product Specifications

Technical details and manufacturing context for Automated Surface-Mount Technology Assembly Line

Definition
This coordinated industrial production line is designed for high-volume manufacture of printed circuit board assemblies used in communication equipment. It integrates multiple specialized modules to perform solder paste application, component placement, reflow soldering, and inspection in a continuous automated workflow. The system enables precise, repeatable assembly of complex electronic circuits for routers, phones, and telecommunication devices. It is configurable to handle various board sizes and component types while maintaining high throughput and quality standards.

The line operates with a placement accuracy of ±0.05 mm and a maximum throughput of 120,000 components per hour. It supports board widths from 50 to 460 mm and component sizes from 01005 to 50×50 mm. Automatic nozzle exchange takes 0.8 seconds. The reflow oven reaches peak temperatures of 250–260°C, following the IPC/JEDEC J-STD-020 profile. Pneumatic actuators require compressed air at 0.5–0.7 MPa. The power supply is three-phase, 380 V AC ±10%, 50/60 Hz, per IEC 60038. Optimal performance occurs at 15–35°C and 30–70% relative humidity (non-condensing). The enclosure is rated IP54 per IEC 60529. Machine weight ranges from 4500 to 6500 kg depending on configuration. A complete line with three placement machines has a footprint of 12000×2500×1800 mm.

Materials used include stainless steel, aluminum alloy, industrial-grade plastics, and ceramic nozzles. The line is intended for integration into existing manufacturing environments; buyers should verify model-specific values and standards with the legal manufacturer or supplier. The directory does not certify compliance or performance; all figures are reference ranges for procurement and verification.
Working Principle
PCBs move sequentially through stations. Solder paste is screen-printed onto pads. Pick-and-place machines position components using vacuum nozzles. Boards pass through a reflow oven where controlled heating melts solder to form electrical connections. Automated optical inspection verifies placement accuracy and solder joint quality. The line operates continuously, with each station synchronized to maintain throughput. Operators monitor parameters such as temperature, pressure, and placement accuracy. Maintenance signals include deviations in placement accuracy, increased nozzle change time, or inconsistent solder joints. Failure boundaries are defined by the specified operating ranges; exceeding them may cause defects or downtime.
Common Materials
Stainless Steel, Aluminum Alloy, Industrial-Grade Plastics, Ceramic Nozzles
Technical Parameters
ParameterTypical rangeNotes & selection driver
Placement AccuracyRequired±0.05 μmPositional precision of component placement
Maximum ThroughputRequired120000 CPHComponents placed per hour at optimal conditions
Board Width RangeRequired50–460 mmMinimum to maximum PCB width supported
Component Size RangeRequired01005–50×50 mmSmallest to largest component dimensions handled
Nozzle Change Time0.8 secondsTime required for automatic nozzle exchange
Reflow Temperature ProfileRequired250–260 °CPeak temperature in reflow oven heating zonesIPC/JEDEC J-STD-020
Operating Pressure0.5–0.7 MPaCompressed air supply for pneumatic actuators
Power Supply380±10% V ACThree-phase, 50/60 HzIEC 60038
Operating Temperature15–35 °CFor optimal performance
Relative Humidity30–70 %RHNon-condensing
Ingress Protection RatingIP54Dust-protected and splash-proofIEC 60529
Machine Weight4500–6500 kgDepending on configuration
Footprint (L×W×H)12000×2500×1800 mmFor a complete line with 3 placement machines

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Solder Paste Printer
    Applies precise amounts of solder paste to PCB pads using stencil technology
    Material: Stainless Steel Frame, Polyurethane Squeepee
  • High-Speed Pick-and-Place Machine
    Automatically picks components from feeders and places them onto PCBs with micron-level accuracy
    Material: Aluminum Gantry, Ceramic Nozzles, Steel Feeders
  • Reflow Soldering Oven
    Heats PCBs through multiple temperature zones to melt solder paste and form permanent electrical connections
    Material: Stainless Steel Housing, Quartz Heating Elements
  • Automated Optical Inspection System Optional
    Uses cameras and image processing to verify component placement accuracy and solder joint quality
    Material: Aluminum Enclosure, Glass Lenses, LED Arrays
  • Conveyor System
    Transports PCBs between stations while maintaining proper alignment and timing
    Material: Anodized Aluminum Rails, Polyurethane Belts

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Automated Surface-Mount Technology Assembly Line.

SMT Production Line PCB Assembly System Electronic Component Placement Line

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0.5-1.0 bar (pneumatic systems), vacuum for component handling
other spec: Humidity: 40-60% RH, Component size: 0201 to 50x50mm, Placement accuracy: ±0.025mm, Throughput: 10,000-100,000 CPH
temperature: 15-30°C (operating environment), 150-250°C (soldering zone)
Media Compatibility
✓ FR-4 PCB substrates ✓ Lead-free solder paste (SAC305) ✓ Surface-mount components (resistors, capacitors, ICs)
Unsuitable: Corrosive or conductive dust environments
Sizing Data Required
  • Maximum component placement rate (CPH)
  • PCB panel dimensions and thickness
  • Required component mix complexity (number of unique part numbers)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Component Misalignment
Cause: Wear in pick-and-place nozzle mechanisms, vibration-induced drift in positioning systems, or thermal expansion of mechanical components affecting precision.
Solder Joint Defects
Cause: Inconsistent solder paste deposition due to clogged stencil apertures, improper reflow oven temperature profiles, or contamination on PCB pads.
Maintenance Indicators
  • Audible: Unusual grinding or clicking noises from pick-and-place heads or conveyor drives, indicating mechanical wear or misalignment.
  • Visual: Increasing frequency of placement errors or skewed components on boards, visible through inspection systems or manual checks.
Engineering Tips
  • Implement predictive maintenance using vibration analysis on critical moving parts (e.g., linear guides, ball screws) and thermal monitoring of reflow zones to detect deviations before failures occur.
  • Establish strict contamination control protocols, including regular cleaning of stencils and nozzles with approved solvents, and maintain controlled humidity in the assembly area to prevent oxidation and ensure consistent solder paste performance.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
IPC-A-610 Acceptability of Electronic Assemblies IEC 61191-1 Printed board assemblies - Part 1: Generic specification

Quoted from the published standard.

Manufacturing Precision
  • Component Placement Accuracy: +/-0.1mm
  • Solder Joint Height: 0.05-0.15mm
Quality Inspection
  • Automated Optical Inspection (AOI)
  • X-ray Inspection for BGA and Hidden Joints

Manufacturers of Automated Surface-Mount Technology Assembly Line

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Huizhou China Eagle Electronic Technology Inc. (CEE)
Huizhou, Guangdong, CN
Founded 20005000 + staff300000
Also makes: HDI PCB, Rigid-Flex PCB, Multilayer PCB
Listed on the company's own website · profile compiled by CNFX from public sources
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Frequently Asked Questions

What is the placement accuracy of this SMT line?

The placement accuracy is ±0.05 μm, as listed in the reference parameters. This value should be confirmed with the manufacturer for the specific configuration.

What board sizes can this line handle?

The line supports board widths from 50 to 460 mm. The exact range may vary with configuration; verify with the supplier.

What is the maximum throughput?

The maximum throughput is 120,000 components per hour under optimal conditions. Actual throughput depends on board design and component mix.

What standards are referenced for the reflow profile?

The reflow temperature profile follows IPC/JEDEC J-STD-020, with peak temperatures of 250–260°C. Compliance should be verified with the manufacturer.
Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.
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