The Ersa HOTFLOW 4/26 is the flagship of the current Ersa Reflow Soldering System generation.

Ersa HOTFLOW 4/26 High-End Reflow Soldering System
Ersa HOTFLOW 4/26 High-End Reflow Soldering System
Ersa HOTFLOW 4/26: Grip conveyor for extremely thin PCBs or flexfoils
Ersa HOTFLOW 4/26: Multi track conveyor for variable PCB width
Ersa HOTFLOW 4/26: Efficient cooling in outfeed section
Ersa HOTFLOW 4/26: Retractable nozzle sheets for quick maintenance
Ersa HOTFLOW 4/26: Optimized access to maintenance units
Ersa Auto Profiler: Easy off-line profiling for highest machine uptimes


Ersa Reflow Machine HOTFLOW 4


Highlights Reflow System Ersa HOTFLOW 4/26

  • Reflow soldering system with outstanding thermal performance and an excellent power balance
  • Individually controllable process zones via energy-optimized motors
  • Multi-level controlled cooling
  • Multi-level process gas cleaning with pyrolysis
  • Rest-oxygen monitoring and control, low N2 consumption
  • Ersa Process Control software (EPC)
  • Software to generate temperature profiles
  • Multi-track conveyor systems (1-4), 1x fixed, 3x variable
  • Thermally invisible center supports
  • Low energy consumption in continuous operation
  • Patented grip conveyor system for flex boards
  • Auto Profiler to off-line and quickly generate temperature profiles


... HOTFLOW 4/26

The Ersa HOTFLOW 4/26 Reflow Soldering System is of robust design and manufactured entirely from steel, welded air-tight, powder coated and with interior electric cabinet and a PC operating terminal. Features include the motorized hood opening, quick-change convection heater cassettes, multi-level process gas cleaning and a powerful, high-performance cooling zone.


  • Pin-and-chain conveyor with either 3 / 4 / 5 mm pin length
  • Pin-and-chain conveyor with low-mass center support
  • Motorized adjustment of conveyor width and center support
  • Up to 4 tracks with center support in the system (1x fixed, 3x variable)
  • Patented grip conveyor system for flex boards
  • With single track systems, the use of low mass tubular supports is possible
  • Operation with either ambient air or nitrogen
  • The cooling zone of the system can be equipped with an integrated cooling system and an external cooling aggregate
  • Cooling can be either with cooling aggregate or with local water connection
  • Multi-level condensation management system available with pyrolysis
  • Heating and cooling cassettes removable without tools
  • Energy-consumption management

Techn. data


  • Length: 7,705 mm
  • Width: 1,410 mm
  • Height: 1,350 mm
  • Weight appr. 2,800 kg

Conveyor system

  • Working width: 45-560 mm automatically infinitely adjustable
  • Clear passing height: +32/-40 mm
  • Center support, automatically infinitely adjustable
  • Conveyor speed: 20-200 cm/min
  • Pin-and-chain conveyor with 3 / 4 / 5 mm pin length

Process zone

  • Process length: 7,115 mm
  • Heated length: 5,000 mm
  • Cooling length: 2,115 mm

Heating system

  • Up to 26 convection heating cassettes
    (Preheat zone up to 18, reflow zone 8)
  • Volumetric flow rate each module adjustable up to 500 m3/h
  • Rated power each module: 3.3 kW


  • Up to 4 levels cooling zone with water back-cooling

Electrical data

  • 400 V, 3 Phase, N, Ground, 50/60 Hz
  • Continuous output during operation: appr. 12-19 kW


  • Extraction capacity 2x 300-600 m3/h with monitoring feature


Ersa Customer Reports

Tele HAASE Steuergeräte: Solutions for a better world

Herkules-Resotec: Absolut quality in LED

Ersa EXOS 10/26: How to avoid Voids!

Helmut Hund GmbH relies on Ersa HOTFLOW

Ersa equips new Tridonic production


More Customer Reports

Ersa Report
Ersa Report

UX Group: Touching Tomorrow with Human Machine Interfaces (HOTFLOW 3/20, EPP 09/2017)



Questions about the product?
Find your Ersa contact person here

Your contact persons for the process
Product Management Ersa Soldering Systems Germany


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