SMT Auto Dry Cabinets

Description

Climatest Symor® SMT auto dry cabinets, also called humidity controlled drying and storage cabinets, suitable for humidity control storage of SMT elements, PCB boards, IC packages, SMD tapes, reel & tapes, optical lenses, it provides a long-term <10%RH dehumidifying environment, these SMT auto dry cabinets follow IPC/JEDEC J-STD-033 standard.

Specification

Mode# with F: ESD function, Dark Blue color.
Mode# without F: No ESD function, off white color

Feature

·Adopts Switzerland original imported humidity & temperature sensor.

-This ensures high accuracy in use, the SMT auto dry cabinets have memory function, no need to re-set after power failure.

·Made by 1.2mm thickness galvanized steel, with USA DuPont ESD painting.

-Reinforced structure design, excellent load-bearing, surface treatment with 18 painting processes, the static resistance value meets 10⁶ -10⁸Ω, also with strong corrosion resistance.

·3.2mm high intensity tempered glass window for better observation.

- Flat press zinc alloy lock, with perfect air tightness and anti-theft function, this SMT auto dry cabinets sealing performance is excellent.

·With memory function, no need to re-set after power failure.

-The SMT auto dry cabinets can automatically memorize the last setting value after power off, no need set again.

·Powerful dry unit with +15 years projected lifespan.

- The SMT auto dry cabinets adopt 4A molecular sieve dry unit, the most advanced technique, it can be regenerated automatically, no need replacement.

·Universal castors installed at bottom, ESD safe.

- Reinforced PU castors are installed at the bottom of SMT auto dry cabinets, front two with brakes for easy move and stop.

What is Climatest Symor® SMT auto dry cabinets, dessicant humidity control dry cabinet ?

Climatest Symor® SMT auto dry cabinets, is an enclosure with electronic humidity control that automatically maintains a stable relative humidity (RH) value, the SMT auto dry cabinets come in different sizes and shapes, it can keep <10%RH low humidity environment reliably, with accurate RH control, just connect to your power supply, and set RH value on the LED controller, it will automatically work.

How do SMT auto dry cabinets effect the SMT production?

MSL components, like IC, BGA, PCB, are very sensitive to moisture, these components have strict requirements for the storage environment, unlike the civilian moisture-proof dry boxes, the SMT auto dry cabinets can reach a very low humidity value, the dehumidifying and recovering speed is super fast, the whole cabinets are ESD safe.
During reflow process, trace moisture penetrate into the IC packages, the moisture pressure rises due to heating, the absorbed moisture expand quickly inside, this result in invisible damages, like wiring failure, popcorn and micro-cracking, even cracking to the surface, these defects are not easy to be seen in the early stage, however, these invisible, potential problems enter into the market, then faculty products return and complains follow.

SMT auto dry cabinetscan maintain <10%RH, that effectively eliminate the risks of failures result from improper storage during assembly process. IPC/JEDEC J-STD-033 standard specifies“Standard for Handling, Packing, Shipping and Use of Moisture/Reflow Sensitive Surface Mount Devices.”, it require low humidity storage for moisture sensitive components.

Why do you need a SMT auto dry cabinets to store SMD?

MSD devices are generally integrated circuits, composed of different components, these components are assembled through paste, this inevitably causes gaps among components, the gaps are the main factor of MSD dampness, moisture will penetrate, and gradually into the SMD, when the penetration reaches a certain extent, SMD get damp and failed.
MSD low humidity storage , aims to control the SMD workshop life, SMT auto dry cabinets provide an effective storage solution, the SMT auto dry cabinets performance determines the SMD storage effect, a professional SMT auto dry cabinets should achieve low humidity, antistatic and fast dehumidifying functions.
SMD level determines the required humidity level. In the current SMD level, the commonly used storage humidity is 20%, 10% and 5%RH.
Climatest Symor® SMT auto dry cabinets adopt Switzerland imported temp. & RH sensor, the error is +/-2%RH, with high precision and high stability, humidity is adjustable, air-tightness is excellent.

Application of SMT auto dry cabinets

SMT auto dry cabinets are essential in electronic/semiconductor manufacturing industry, it is the OPTIMAL storage solution for:
※ PCB assembly, IC chips, LED, SMD, SMT, tape & reels, printed wiring boards(PWB), polymide film, feeders.
※ Capacitors, ceramic parts, connectors, switches, welding bar.
※ MSL components that have been partially assembled.
※ Moisture-absorbing materials, such as epoxy, resins, adhesives.

Moreover, cleanrooms have very strict hygiene requirements, the standard models don’t match, Climatest Symor® also supplies stainless steel (SS) dry cabinets and stainless steel (SS) nitrogen cabinets, both are customized according to customers’ specific demands.

<10%RH Series dehumidifying speed:

Open door 30 seconds and then closed, the humidity will recover to <10%RH within 30 minutes,see below curve: (Ambient 25 degree C, humidity 60%RH)

WHAT ARE THE COMMON METHODS TO STORE ELECTRONIC COMPONENTS?

1.Moisture barrier bags
❊Method: The moisture sensitive components are packed in sealed moisture barrier bags, with desiccants and humidity indicator car (HIC) inside, users identify the ambient humidity in the sealed packages by checking the color change of the dots on the car.
❊Disadvantage: Moisture barrier bags + humidity indicator cars + desiccants + manual work = consumables, leakage risk, high cost.

2.Nitrogen cabinets
❊Method: The moisture sensitive components are stored in nitrogen purge cabinets or compressed air to meet low humidity storage.
❊Disadvantage: Nitrogen filling = continuous N2 consumption, high cost.

3.Low humidity storage cabinets
❊Method: The moisture sensitive components are placed in a low humidity storage cabinet, just plug in, the machine will automatically work, and reach very low humidity.
❊ Advantages: No consumables, no manual work, no nitrogen consumption, environmental, only a little bit of electricity needed.
From above comparison, SMT auto dry cabinets bring you higher efficiency and lower cost, it is the most cost-effective option in the long run.

We provide SMT auto dry cabinets solutions to below industries:

Advantages of SMT auto dry cabinets

What is the difference between SMT auto dry cabinets and nitrogen cabinets?

1.Working principle
Low humidity storage cabinets use physical humidity absorbing, the core part is dry unit, the dry unit automatically adjusts the humidity absorbing and exhausting circulation processes, there are different RH ranges for your selection, such as 20-60%RH/10-20%RH/<10%RH/<5%RH/<3%RH, it depends on your specific demands.
Nitrogen cabinets use N2 gas purge, the N2 gas filled in push the interior air outside, then the RH lower to the setting value, there is a N2 flow-meter, magnetic valve and N2 module equipped on the nitrogen cabinet for control purpose, the humidity is 1-60%RH adjustable, but it needs continuous N2 supply, the cost is high.

2.Dehumidifying speed
The nitrogen cabinets dehumidifying speed are faster than the SMT auto dry cabinets, when the N2 rush into the cabinet, the interior RH can reach 1%RH within several minutes, however, the electronic dry cabinet have to experience RH absorbing and exhausting processes, it is slower, normally within 10-30 minutes, depending on specific RH range.

3.Application
If the products are just humidity sensitive, SMT auto dry cabinets are the best choice, if the products are both humidity sensitive and oxygen sensitive, like copper, crystal, silver, then N2 cabinet is better.

For more details about SMT auto dry cabinets, pls visit our website www.climatestsymor.com or directly send emails to sales@climatestsymor.com, we will get you back at quickest time, welcome for possible collaboration.