SMT VAC Vacuum Reflow Oven

Detailed Introduction to SMT Vacuum Oven

SMT Technical Parameters:

1. Machine Dimensions, Weight:

• Heating zone length 3.2 meters, 6 temperature zones, one cooling zone, total length approximately 5.8 meters;
• Width 1.5 meters;
• Height 1.67 meters, open cover height 2.25 meters;
• Weight approximately 3200 kg, wooden crate and chassis weight approximately 750 kg.

2. Basic Machine Parameters:

• 7 heating zones, 3 preheating zones, 2 high-temperature zones, 1 vacuum preheating zone with maximum heating temperature of 300°C; high-temperature zone maximum heating temperature 350°C, vacuum zone maximum heating temperature 300°C.
• Heating time less than 30 minutes;
• Chain-type conveyor轨道,轨道 motor is 24V DC servo motor, speed: 0.2--3 meters/min,轨道 can automatically adjust size: 60—510mm; can be equipped with intermediate support system, maximum component allowable height 30mm (including double-sided board process), customizable according to customer requirements.
• Operating voltage AC three-phase 380V, 50HZ, maximum operating current 145 amps, power 116 kW including vacuum pump;
• Temperature detection using Ni Cr-Ni sensors, temperature control accuracy ±1°C;
• This equipment is equipped with nitrogen injection and measurement system, input nitrogen pressure 6-8 Bar, nitrogen consumption in standby state is 9 cubic meters/hour, in normal production state when oxygen level is set to 1000 PPM, nitrogen consumption is 15 cubic meters/hour. Minimum can stabilize to 20 PPM, oxygen consumption 30 cubic meters/hour.
• Hot air motor with fan inverter has 4 variable frequency speeds: 20HZ, 30HZ, 40HZ, 50HZ;
• 2 exhaust vents, one located at the board entry area with vent size diameter 200 mm, another at the vacuum pump module area, diameter 150 mm, exhaust requirement approximately 600-800 cubic meters/hour;
• Machine noise to environment less than 70 decibels;
• Reduces soldering void rate by 99%,单个焊点 void rate less than 1%, entire board void rate less than 5%, greatly improving soldering quality reliability and longevity, enhancing solder joint adaptability to different environmental requirements, especially in high temperature high humidity, low temperature high humidity environments! This is something traditional reflow ovens cannot achieve in reducing soldering void rates!

Unique Features of SMT Online Reflow Vacuum Oven:

• Combination of optimized design and advanced technology,卓越严谨的德国精工制造;
• Advanced technological inventions and creations result in superior machine performance;
• Most efficient heating and heat conduction methods, enabling oven chamber temperature control within ±1°C;
• Flux solder paste ABS automatic recovery system, keeping the oven chamber clean, reducing equipment maintenance and cleaning, lowering equipment maintenance time and costs;
• Intelligent nitrogen monitoring and control system, SMT patented intelligent valve control, automatically adjusts valve opening ratio (from 0---100%) based on changes in oven oxygen content, ensuring stable low fluctuation of oxygen PPM levels inside the chamber;同时最大程度节省氮气消耗，our nitrogen usage is only about 50% of competitors'; greatly helps customers control production costs of nitrogen consumption;
• Uses high-performance and long-life seals, along with advanced design, ensuring excellent airtightness, allowing SMT reflow oven to achieve最低20PPM oxygen content; and maintains set values well;
• User-friendly human-machine interface, advanced touch screen technology; uses USB technology, simple and easy to operate: program backup, restore, data import/export, SMT software system saves all real-time machine information for engineers to track and share any abnormalities; also optional MES system for方便追踪所有产品在回流炉中的情况 (widely used among SMT automotive electronics customers and other important industry clients);
• Automatic power on/off function, convenient for operators, saving startup/shutdown time, especially for non-24-hour production (e.g., set to auto start at 7:00 Monday morning, auto shut down at 18:00 evening...);
• Software includes automatic switch to economy mode function (e.g., if no product enters for 10 minutes, hot air fan motor automatically reduces speed via frequency conversion, when board entry sensor detects product arrival again, fan motor quickly returns to set speed), helping customers save electricity and nitrogen consumption!
• QPM N2 Vacuum during normal production consumes only about 7 kW of electricity; only about 40% of competitors';
• Wide applicability, suitable for all SMT production soldering processes;
• SMT patented online vacuum system; can reduce soldering void rate by 99%, standard vacuum chamber width 510mm, length 320mm—460mm, also customizable for customers; available in single and dual轨道 options;
• Product cycle time 60—90 seconds, vacuum process about 30 seconds, but depends on customer process settings, evacuation time (minimum 5 seconds), hold time, gas refill time (minimum 5 seconds);
• Optimized vacuum evacuation design, can evacuate in single step or step-by-step, up to 5 steps (e.g., from normal atmosphere 1000mbar—500mbar—300mbar—100mbar—10mbar-1mbar);
• Minimum vacuum degree can reach 1mbar; can achieve单个焊点 void rate less than 1%, entire board void rate less than 5%;
• Cooling zone轨道 speed can be controlled separately, allowing products to exit the oven surface temperature接近室温,方便后道工艺操作人员的操作!
  
  
•