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Goplus® 3HP Air Compressor Aluminum Head Pump Motor 145PSI 11.5CFM Single Stage Twin Cylinder

2.5 2.5 out of 5 stars 20 ratings
Currently unavailable.
We don't know when or if this item will be back in stock.
Brand Goplus
Special Feature Heavy Duty
Maximum Power 3 Horsepower
Material Aluminum
Style Fashion

About this item

  • 【Sturdy Structure】The heavy aluminum structure insures the product long-term durability.
  • 【Oil Viewing Window】By observing the oil viewing window, it can monitor the oil capacity inside the machine in real time, and control the amount of oil when you adding the air compressor oil.
  • 【Smooth Operation】The proven belt driven design is great for excellent compression & smooth running.
  • 【Keep Cooling Effect】Its effective splash lubrication system will keep the pump running cool all the time.
  • 【Easy to Operate】You just need to unscrew the yellow lid, and then add #100 air compressor oil to the machine.
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Product information

Technical Details

Additional Information

Warranty & Support

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Goplus®

Goplus® 3HP Air Compressor Aluminum Head Pump Motor 145PSI 11.5CFM Single Stage Twin Cylinder

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Product Description

Description
This Is Our Heavy Duty Aluminum Air Compressor Head Pump Which Is A Perfect Choice For You. Its Effective Splash Lubrication System Will Keep The Pump Running Cool At All Time And The Proven Belt Driven Design Is Great For Excellent Compression & Smooth Running. Don't Hesitate To Buy It!

Feature
Heavy Duty Aluminum Construction
Twin Pistol Air Compressor Head Pump
Proven Belt Driven Design
Effective Splash Lubrication System
Oil Viewing Window And Drain Plug
Ball Bearing Check Valve Release

Specification
Rated PSI/ Max PSI: 115/145
Power: 3Hp/2.2kw
Speed: 1200 PRM
Cylinder:2 x 70mm
Pulley Diameter: 10.23''

Customer reviews

2.5 out of 5 stars
2.5 out of 5
20 global ratings
Do not expect this unit to outperform a comparable professional unit
4 Stars
Do not expect this unit to outperform a comparable professional unit
Ordered in Feb 2018, it's been a bit over a year and it still runs fine, it's on light duty use, I'd say once or twice a week 30 mins at a time.It certainly doesn't turn heads as it's a pump for 100 bucks, as you can see in the photo its Frankensteined togather with a tank and motor from a unit I found during a remodel.What I have found is that the oil drain screw backs out every once in awhile due to vibration. I figured the wood would help, but I guess ima mount in some rubber feet to reduce further vibration.I can see where some negative reviews came from saying it failed prematurely. I would likely blame that on the lack of oil in the unit, that drained out and fried the whole thing due to the operators lack of attention to said screw. Luckily I caught it in time being I mounted the site glass facing me when I go to turn it on.Great for residential light use. Would not even scrape near a 300-400 dollar unit. It takes about 10-15 minutes to got from 0 to 150psi on a 70 gal tank. In my experience on a 3.5" pulley positioned about 5" from the flywheel.
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Top reviews from the United States

T.J.
1.0 out of 5 stars No feedback from seller, sold me a bad pump and no one has contacted me
Reviewed in the United States on June 28, 2019
Verified Purchase
Well so far I’ve installed the pump and changed pulley sizes 3 times and unit will not go past 85 psi and runs long enough that I shut off from over heating. I just emailed mfg’er and waiting on a response and will post results. No leaks outside and check valve is good and holding. Will give more stars if results are positive.
One person found this helpful
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Roman Mironenko
4.0 out of 5 stars Do not expect this unit to outperform a comparable professional unit
Reviewed in the United States on March 24, 2019
Verified Purchase
Ordered in Feb 2018, it's been a bit over a year and it still runs fine, it's on light duty use, I'd say once or twice a week 30 mins at a time.
It certainly doesn't turn heads as it's a pump for 100 bucks, as you can see in the photo its Frankensteined togather with a tank and motor from a unit I found during a remodel.
What I have found is that the oil drain screw backs out every once in awhile due to vibration. I figured the wood would help, but I guess ima mount in some rubber feet to reduce further vibration.
I can see where some negative reviews came from saying it failed prematurely. I would likely blame that on the lack of oil in the unit, that drained out and fried the whole thing due to the operators lack of attention to said screw. Luckily I caught it in time being I mounted the site glass facing me when I go to turn it on.
Great for residential light use. Would not even scrape near a 300-400 dollar unit. It takes about 10-15 minutes to got from 0 to 150psi on a 70 gal tank. In my experience on a 3.5" pulley positioned about 5" from the flywheel.
Customer image
Roman Mironenko
4.0 out of 5 stars Do not expect this unit to outperform a comparable professional unit
Reviewed in the United States on March 24, 2019
Ordered in Feb 2018, it's been a bit over a year and it still runs fine, it's on light duty use, I'd say once or twice a week 30 mins at a time.
It certainly doesn't turn heads as it's a pump for 100 bucks, as you can see in the photo its Frankensteined togather with a tank and motor from a unit I found during a remodel.
What I have found is that the oil drain screw backs out every once in awhile due to vibration. I figured the wood would help, but I guess ima mount in some rubber feet to reduce further vibration.
I can see where some negative reviews came from saying it failed prematurely. I would likely blame that on the lack of oil in the unit, that drained out and fried the whole thing due to the operators lack of attention to said screw. Luckily I caught it in time being I mounted the site glass facing me when I go to turn it on.
Great for residential light use. Would not even scrape near a 300-400 dollar unit. It takes about 10-15 minutes to got from 0 to 150psi on a 70 gal tank. In my experience on a 3.5" pulley positioned about 5" from the flywheel.
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Customer image
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tb36fla
5.0 out of 5 stars Five Stars
Reviewed in the United States on September 27, 2016
Verified Purchase
The compressor runs fine. I have nothing bad to say about it
6 people found this helpful
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Pootie Tang
2.0 out of 5 stars First impressions--more to come.
Reviewed in the United States on June 18, 2017
Verified Purchase
I haven't put it into service yet, but I'm almost there and wanted to comment on my observations so far.

First, I have to ding the seller big-time for not providing more technical specs. All we really know up front is that we have to make this thing run at 1200 rpm. It would be really helpful to know which way (i.e. cw or ccw). We can infer from the pictures that it probably runs counter-clockwise, but making an inference from a picture isn't exactly a spec. We're also told that the flow rate is 11.5 CFM, but we're left in the dark as to the pressure at which it might achieve this. The heading mentions 145 PSI, but it's not at all clear what this means when the specs say "Rated PSI/ Max PSI: 115/125." If we have to run the thing at 16% over the max presssure just to see 11.5 CFM, that'd really be something, as most compressors generally max out well below their rated pressure, but of course this would probably void the warranty anyway. I'm looking forward to getting it up and running so I can check the performace for myself.

Second, what's the deal with the aluminum paint? When the unit arrived I could tell it had been hastily painted shortly before it was hastily packed for shipment, because there was aluminum paint smeared all over the styrofoam packing material and styrofoam stuck to some of the painted parts, particularly the pulley. This prompts me to ask: why paint the pulley? Why paint anything made of aluminum with aluminum paint? It does not make sense. Now that I've painstakingly removed all the paint from the pulley, you'd hardly know the difference, because bare aluminum looks pretty much like something that's painted to look like aluminum. Why did I remove it, you ask? Well, first of all, I had to get that styrofoam off. Second, every time I put the belt on or took it off, more paint flaked off. Third, and most important, I didn't want to ruin a belt. V-belt grooves can stand a little belt dressing, but other than that they should be bare metal. I'm baffled as to why someone would waste their time and money painting something when it only makes the customer waste his time cleaning it off.

Update, 7/8/2017:
While running and testing the compressor, I started noticing some oil leakage--just a little at first but it got progressively worse. Several other customers have reported oil leaks too, so I investigated. The oil seemed to be leaking from the bolts at the front of the bottom plate. This is usually the result of bolts being overtightened, which distorts the plate so the gasket can't seal, and the bolt headss won't seat against the bolt-holes, but when I removed the plate it became clear there were more problems. Someone had tried to seal the bottom plate by applying excessive amounts of a white RTV silicone sealant.

This is a clear sign of someone who doesn't know what they're doing. No amount of silicone sealant will keep a bottom plate from leaking if it isn't shaped right. It might not leak at first, but it will fail quickly, which is exactly what happened. Ironically, it takes less effort to straighten the plate, which I've done. The hardest thing I had to do was to remove all the white RTV sealant, which had no business being there in the first place, because I know of know such white sealant that would be appropriate for this application. There are white RTV sealants for interior and exterior caulking and a few industrial applications, but not for sealing fixtures against oil. Unfortunately, this is not the only place it was used, which further illustrates whay this can't be correct. You wouldn't use the same sealant on your oil pan gasket that you'd use for a head gasket (in fact, you wouldn't use any kind of RTV silicone for a head gasket).

It remains to be seen if the other applications will fail. Some customers have reported loss of pressure and other issues that could conceivably result from improperly sealed components, or from stray chunks of loose sealant getting lodged in check valves or pressure switches, so I'll play it by ear and hope I can fix whatever goes wrong. They're definitely losing another star for this.
57 people found this helpful
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Craig S.
1.0 out of 5 stars This is a terrible thing.
Reviewed in the United States on July 3, 2017
Verified Purchase
This compressor worked okay for the first 20-30 minutes until it set up. It was running along with about 80 psi showing and it started to make an ungodly noise. I immediately shut it off and checked the oil. I could still see oil in the sight window but could not budge the pulley.
4 people found this helpful
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Gregory
3.0 out of 5 stars It's ok could be better
Reviewed in the United States on January 18, 2019
Verified Purchase
Aluminum is really thin be careful when. Putting in bolts with drill will go right thru aluminum
One person found this helpful
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Amazon Customer
1.0 out of 5 stars Cheap made
Reviewed in the United States on November 14, 2019
Verified Purchase
Don’t waste your money on on this so called heavy duty air compressor. They advertise 145 psi huh @ 90 psi it’s knocking lucky to get to 105 psi maybe. Spend a little more money buy a real pump this thing won’t last..
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Rick
4.0 out of 5 stars Aluminum compressor pump
Reviewed in the United States on September 9, 2018
Verified Purchase
Seems to work great, and being made of aluminum should dissipate heat more readily than cast iron. The only problem is the vent cap is made of plastic. Mine broke in shipping and I searched high and low to find a suitable substitute with no joy until I went to a reputable auto parts store. I got a metric crankcase drain plug and it fit perfectly. I drilled a small hole through the bolt head and one from the threaded end in to meet the precious one, so the vent action works. It's not pressure proof, nor filtered, but is satisfactory to provide venting results, which is the target here.
One person found this helpful
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