VEVOR Reflow Oven T962 220V Reflow Μηχανή συγκόλλησης 800W 180x235 mm SMD SMT BGA Professional Automatic Infrared Heater Soldering Machine W/Smoke Exhaust Chimney Cooling Efficiency

I bought this device after reviewing the hacking options. I removed the foul smelling (when hot) take and replace with Kapton tape. I applied the open source firmware from UnifiedEngineering (github) and followed the procedure to add the cold-junction temperature sensor for proper ambient temperature adjustment. It's well worth doing. Also this machine's earthing connection really needs to be fixed -- it's earthed to the painted chassis, i.e. there's no earth connection at all. Open it up and either scratch off the paint or used a toothed washer, and test circuit continuity between the screws and various parts of the chassis.

This product is well built and designed for simplicity and durability.

Perfect size for for one person to be able to set up and take down

The thing with lead-free solder is that it doesn't flow well below about 240C, but components can get damaged above about 255-260C (or, in some cases, 245C), and an oven only has a short time to get the temperature right. With this type of oven (basically, a grill), it's difficult to do that. Alternatives are a hotplate (requires a lot of skill/practice to get consistent results) or a convection/conveyer oven (if you have several thousands to spare or a company budget). This oven comes with several preset temperature profiles, plus two you can set up yourself. I found the presets for lead-free got too hot, so spent quite a while setting up a good profile (thermocouples on an empty PCB plus trial and error). It's tricky, because the board temperature depends on things like board size, number and size of components, room temperature and, to some extent, randomness. I have not flashed the firmware or any other major modifications - that may help, and there are lots of YouTube videos about it. A few tips: 1) open it up and remove the paint between the earth wire and the chassis (or at the very least, use it with an RCCB). 2) while it's open, change the masking tape for Kapton tape, including under the front of the insulation (it's easy to do). 3) connect a cheap aluminium foil pipe between the fan output and an open window. 4) to set a user profile, go to the profile, press for DEtails and then press (S). You tell it what temperature to be at for every 10 seconds. It seems to interpolate for the intervening times. Press (S) again to save. 5) raise the PCB above the metal shelf slightly so the shelf doesn't cool the board. Overall, provided you are willing to mess around with it, and provided you are not trying to use it professionally or with extra-sensitive components, then you can get it to work pretty well and it's good value for money.

This is the most bazaar thing I have come across. The T962 reflow oven is excellent, it's well made but the design is lacking and it won't work out of the box. However if you make the improvements suggested at https://github.com/UnifiedEngineering/T-962-improvements then it really does belome a good machine. I just don't understand why the manufacturer doesn't make these changes?

This oven will use 27.5 AMPS at 120V. Make sure you got a 50Amp breaker. Used a meter to measure power and current.

Although we had difficulties in setting this up to make it right for our use, we now have no complaints.

Bon produit, logiciel fourni en Anglais en Chinois, des r_lages sont pr_rogramm_ en fonction du type de brasure utilis. Tr_ bien.

Il est important de faire les modifications n_essaire pour exploiter ce produit, sans ces modification ce four est extr_ement dangereux. Les modifications sont simple a faire.

Basically this is the only way you can get a decent SMD reflow oven at this price range. But you MUST follow the many online videos and blogs about how to upgrade it for safety and accuracy. Specifically:1 - Fix earth wire contact and add earth cable link to top part of case.2 - Replace "stinky" white masking tape around the oven base with Kapton tape.3 - Solder a "cold junction" thermistor to the motherboard to fix temperature sensor accuracy (critical for consistent reflows!).4 - Replace the fan with a quiet version (original is VERY noisy) and solder PWM cable to free GPIO pin on board so it can be intelligently controlled (switched off when not needed).5 - Load the upgraded firmware (Unified Engineering or SmashCat) to enable the enhanced cold junction, fan control and other features. You should consider soldering jumper pins or cables to the motherboard to make this easier.6 - Optional - Connect an ESP WiFi board to the firmware update and reset pins so you can fully control and monitor the oven remotely.In short... Without any upgrades the oven is not only bad but dangerous!!! BUT with the upgrades which are easy for anyone working with SMD devices to achieve, it is a fantastic little oven for prototypes or small batches of electronics production.