bench grinder Jet vs Jet

[radrush]

I don't get it ... ???

JET IBG-8 8" Industrial Bench Grinder 578008 NEW US $264.99

http://www.ebay.com/itm/JET-IBG-8-8...b1c34a&pid=100010&rk=4&rkt=24&sd=331628205512

Wheel Grits 36 / 60
Weight 55 lbs.
RPM 3,450
Spindle Size 5/8 in.
Motor Phase 1
Length 21 in.
Horsepower 1 HP
Amperage 7
Height 14 in.
Wheel Diameter 8 in. x 1 in.
Width 13.75 in.
Dust Port Size 2-1/2 in.
Wheel Width
AC Voltage 115V

VS

JET JBG-8A, 8" 1 HP Industrial Bench Grinder 577102

ebay = $215

Northern Tool = $239.00

http://www.ebay.com/itm/JET-JBG-8A-...019873?hash=item4d3a71d2e1:g:HeQAAMXQVT9S337V

http://www.northerntool.com/shop/tools/product_17014_17014

Wheel Grits 36 / 60
Depth 10 in.
Weight 54 lbs.
RPM 3450
Spindle Size 5/8 in.
Motor Phase 1
Horsepower 1 HP
Amperage 8
Height 12.5 in.
Wheel Diameter 8 in.
Width 19 in.
Wheel Width 1 in.
AC Voltage 120V

 

[Davefr]

Looks like the first one has a smaller diameter motor for more clearance. It also comes at the expense of less power. (7 amps).

I'd get the second one unless you plan to do a lot of buffing and need more clearance. It's a whopping 8 amps and a very capable grinder. I have one dedicated to wire brushing because of the power.

 

[Davefr]

The Northern Tool web site claims 8 amps. on the 2nd one (577102).

http://www.northerntool.com/shop/tools/product_17014_17014

*102 is definitely 8 amps.

 

[1982fxr]

one's a bigger *************?

 

[radrush]

one's a bigger *************?

Well AH, I had my eye on this Baldor 1-HP Bench Grinder but I just can't see forking out $1,626.35 for DIY home use. I don't plan on using the thing in a metal fab business. So I figured something under $300 in the 1-hp range would be sufficient to run this grinder attachment...

 

[Davefr]

Don't listen to him. The 8" Jet is an excellent grinder. It's smooth, powerful and high quality. It's light years better then most other grinders.

I've had one for a long time.

 

[Ilikeike]

I have the 8amp 8" jet at home. Works fine for doing my small home fab projects. I'm happy with it for under $250, I don't really know what would be better for that money,Dayton 8" is about the same.

 

[Hammer1963]

I own 2) of the 8 amp models and they are smooth and powerful. Both run Multi-tool grinding belt attachments and bolt bolt up with no issues. JET makes excellent products and you'll be fine with either.

 

[Jakel]

The JET IBG-8 is an upgrade. Published Specs can be deceiving. The IBG-8 has cast iron wheel flanges instead of the stamped steel ones of the JBG-8A has. (Wheels should run truer. The exhaust set up on the IBG-8 is easier to hook up to dust collection as it has one 2.5" center exit. The IBG-8 also has an OSHA approved switch. The biggest and most important difference is in the motor the JPG-8A has an 115 volt only motor, the IBG-8 has an 115/230 volt motor. When wired to run on 230 volts, the motor will start easier and last longer than a 115 volt motor. The full specs of the grinders are in their respective manuals. Oh and the IBG-8 will accept JET's optional LED light.

 

[exmaxima1]

The JET IBG-8 is an upgrade. Published Specs can be deceiving. The IBG-8 has cast iron wheel flanges instead of the stamped steel ones of the JBG-8A has. (Wheels should run truer. The exhaust set up on the IBG-8 is easier to hook up to dust collection as it has one 2.5" center exit. The IBG-8 also has an OSHA approved switch. The biggest and most important difference is in the motor the JPG-8A has an 115 volt only motor, the IBG-8 has an 115/230 volt motor. When wired to run on 230 volts, the motor will start easier and last longer than a 115 volt motor. The full specs of the grinders are in their respective manuals. Oh and the IBG-8 will accept JET's optional LED light.

And the IBG-8 is made in Taiwan vs the cheaper Chinese-made JBG-8A. Side by side, the IBG-8 looks far more substantial.

Another thought is to buy a nice vintage grinder and add the Multi-Tool adapter. CL has quite a few in your area to pick from.

 

[American Locomotive]

It's also conceivable the IBG has a better, more efficient motor. That means it may draw less current for the same power.

 

[6PTsocket]

Looks like the first one has a smaller diameter motor for more clearance. It also comes at the expense of less power. (7 amps).

I'd get the second one unless you plan to do a lot of buffing and need more clearance. It's a whopping 8 amps and a very capable grinder. I have one dedicated to wire brushing because of the power.

If the hp is the same, more amps is not always 100% proof of more power. Cheaper motors tend to be less efficient and use more power for the same ourput. The first one looks like the real indistrial model and the second is the discount market model. Before spending money a simple call to Jet would probsbly clarify it instead of asking a bunch of people that are just guessing, including me.

Sent from my SM-G900V using Tapatalk

 

[Jakel]

The IBG-8 draws 11 amps operating at 115 volts and 5.5 amps operating at 230 volts. I could not find an amp rating for JPG-8A. Some here are saying the JPG-8A pulls 8 amps, I can't verify it.

 

[shawhite]

If it matters the first one is made in Taiwan and the second is made in China. They are both rated for the same 1hp so should perform very similarly.

 

[Jakel]

If it matters the first one is made in Taiwan and the second is made in China. They are both rated for the same 1hp so should perform very similarly.

Posted ratings matter little. As I said in my first post is they are two different motors. The Chinese built one is a 115 volt only motor where as the Taiwanese Motor will operate off 115/230.

Also if that 8 amp draw is to believed for JBG-8a it is a weaker motor compared to the 11 Full load amps of the IBG-8. If all else is working the higher the amp draw the higher the real HP.

Full load amps is what matters, I can't find that number for the JBG-8A.

 

[Jakel]

This link shows different ways HP and other motor ratings are come by. It say's there most motors are rated at the stalled torque (useless number) and not sustained (useful). HP ratings according to the are meaningless even among different product lines within the same company. The JBG appears to be geared toward the consumer market as the IBG toward the industrial market with their more indepth specs.

http://toolsinaction.com/power-tool-guides/other-guides/power-tool-amps-horsepower-and-volts/

 

[woody 73]

Does that sander attachment run with any grinder models or just special grinders like the jet ? Does it need 8 inch only models or could you use a 6 inch model ? One more question any special HP will do or does it need to be I HP only ?

 

[earlthegoat2]

I used an 8" Jet in a metal fab business and it did quite well. I have one now that gets worked heavy and hard for an hour straight every day. That is, it is turned on and being put under load for a little less or a little more than an hour a day. Had to replace the switch in it once.

 

[Jakel]

I found this chart, These are single phase motors so the columns at the right is what to look at. Going by the Chart the IBG-8 is putting out an actual 1 HP 11 amps at 115 volts or 5.5 at 230 volts. If the 8 amp is correct for the JBG-8A then it's actually putting out a little less than 3/4 HP at 115 volts. Here's the link.

http://hvacwebtech.com/motoramps.htm

 

[4x4gearhead]

I have the jbg grinder, bought in like new condition for $20, it's much nicer than a lot of similar priced bench grinders.

 

[exmaxima1]

Does that sander attachment run with any grinder models or just special grinders like the jet ? Does it need 8 inch only models or could you use a 6 inch model ? One more question any special HP will do or does it need to be I HP only ?

You can go to the site (TrickTools.com) and see the manual for the attachment. The only real caveat is that you must have wheel guards that are bolted to the motor---no slip fit types like vintage Atlas/Stanley/Walker-Turner. The attachment simply bolts into place where the guard used to reside.

As far as grinder size, you only need it to be 3450 rpm, not the slower 1750 found on some 8" and 10" grinders. The drive wheel on the Multi-Tool is close to 6" diameter, so the surface speed closely matches that of a 6" grinder wheel and ideal for ferrous metals. I have a number of MT-equipped grinders and they work great. I would not recommend anything less than 1/2hp (I have a Baldor 1/2hp that works fine for most everything), and 1hp would not be overkill especially when using coarse grits.