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Angel
Comentado en México el 7 de abril de 2025
es una gran bomba de vacio para moldes de silicona y resina. la regrese debido a que un tapon estaba atorado, aun asi estoy en espera de volver a comprarla.si es tu primera bomba aqui te dejo unos tips.-el vacio maximo depende de tu altitud, averigua el vacio maximo en el lugar en el que vives.-si de gasificas silicona de alta densidad es importante que sepas que nunca dejara de sacar burbujas, la silicona estará lista cuando regrese a su volumen original (o cercano) después de haber inflado.-en un tanque de 4.5-5 galones me toma aproximadamente 15 o 20 min en de gasificar por completo debido a mi altitud. usa resina y silicona con "pot life" más larga que eso. (con líquidos menos densos la velocidad es mucho mayor).-por el amor de dios sigue las instrucciones casi todas las reviews bajas son por no seguir las instrucciones.
OK one
Comentado en los Estados Unidos el 14 de octubre de 2024
Has worked very well and pulls a good vacuum on the system. Robinair is a name that I trust to be a quality product, for many years to come. Made my summer better. It is a heavy pump, not cheap, and will get hot, but it works as it's supposed to all season long.
Professor Honeydew
Comentado en los Estados Unidos el 17 de febrero de 2023
I committed the typical amateurish error of trying out cheaper two-stage vacuum pumps...with predictable results. They either didn't perform as advertised right out of the box, or they failed within several uses - even with proper maintenance.This thing, however, delivers on the promise.I filled it with the included oil. First time powering it up, it pulled the rated vacuum quickly when dead-headed.That first charge of oil became cloudy after just a few uses, so I drained it and replaced it with fresh Robinair vacuum oil. At that point, the ultimate vacuum plunged to 9 microns. (I suspect that the first charge of oil took the brunt of the break-in, and that's why it clouded up so quickly. But that's something to be aware of if you buy this pump. Keep a close eye on the clarity of the first oil charge, as it will probably cloud up pretty quickly.)Since then, this pump has been worked very hard. It has been operated for hours on end with no loss of performance whatsoever. Since my application doesn't expose the oil to excessive moisture, the oil has remained clear after the equivalent of days of operation.There is oil fog released when the pump is operated under no load, or when it is under load but evacuating at a high flow rate. It's inevitable and is present with all pumps of this type.There are aftermarket oil mist separators available that can mitigate the oil mist, but they're expensive. Just expect the oil mist, and make sure you have adequate ventilation wherever the pump is operating.
pedro Covarrubias
Comentado en México el 29 de diciembre de 2023
Excelente bomba de vacío
Jairo m.
Comentado en México el 5 de octubre de 2023
Desde que la pedí, llego super bien y bien empaquetada algo que me gustó por llego cuidadita, me gusto y hace vacío muy rápido, uso vacuometro y me sorprendió lo rápido que baja a 250 o 500 micrones, la.recomiendo.
Carlos G.
Comentado en México el 17 de marzo de 2022
Compre esta bomba en teoria porque es de buena calidad, apenas en año y medio de uso ya no enciende, parece daño mecánico del motor. Me duró lo mismo que otra bomba qué costo la mitad qué esta.
Cliente de
Comentado en México el 23 de febrero de 2022
No se pudo cargar el contenido.
Cliente de
Comentado en México el 16 de abril de 2021
Exelente me encanto ,hace su función
ryan pongracz
Comentado en Canadá el 19 de mayo de 2020
Second one of these pumps I brought, only because the first one was so good someone wanted to buy it off me. These things are amazing machines, pulls -30hg and more, quite as you could pray for, no smoke, lasts forever, even after the first one was used with no cold trap and pulled tons of isopropyl direct to the pump, still works like a charm. I do not recommend this though it will shorten the lifespan of your pump. Get a cold trap, and it will last for years. I'm talking heavy use too, like 6+ hours a day running no problems.
Jesús Galaviz
Comentado en México el 5 de enero de 2020
Muy buen equipo, de fácil manejo y excelente calidad, excedió mis expectativas con su trabajo
edgar
Comentado en México el 17 de octubre de 2019
sobrepaso mis expectativas, no entendia porque no me daba los 29.9, solo 26, investigando me di cuenta que estoy a 1850 de altitud, la presion relativa aqui es de 26, por lo que es correcta, crea vacio casi total en 20 seg
Gary C
Comentado en los Estados Unidos el 25 de septiembre de 2019
I chose to go with a brand name rather than one of the cheaper similar spec models. Never had a pump before but every car needs a new compressor if you keep it long enough. One pump and refill costs more that this pump (including Freon and oil). Easy setup, quiet, pulled good vacuum. Didn't check final vacuum as my gauges are not the best, but needle was basically pegged at highest vacuum level. The repair was: automotive - new compressor, all new seals on all components, full flush on what was left, new suction/discharge hose, new receiver drier). After sitting for an hour with no change in vacuum, added sufficient R134a for compressor to run and fully charged the system. Even with the new parts (all AC Delco - so double what i could have paid) plus the tools i didn't have (flush kit, flush, this pump) cost was half of dealer cost to just replace the compressor. After use I changed the pump oil - went from clear to noticably yellow with 45 minutes of use. Easy to change, just follow instructions provided. This is cheap easy maintenance. Can't comment on durability as i only used it once. Way quieter than the previous pump i borrowed.
A.E
Comentado en Canadá el 28 de abril de 2018
A good vacuum pump, is able to generate a good vacuum. Noise level is reasonable and makes minimum fume.
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