ALTERNATIVES TO PNEUMATIC IMPACT GUNS - Smoother!! 1

• Jun 26, 2008

1
• #2

hydtools

Mechanical

Apr 4, 2007

3,265

Try an impulse wrench.

http://pdf.directindustry.com/pdf/yokota-europa/yokota-impulse-wrenches/16895-6222-_12.html

Ted

 

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• Jun 27, 2008

• Thread starter
• #3

kkykylkyle

Industrial

Jun 26, 2008

6

Thanks Ted,

I can't find much literature on impulse wrenches. Is there a reasonable justification for why an impulse wrench would provide a smoother tightening than impact guns?

Kyle

 

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• Jun 27, 2008

• #4

hydtools

Mechanical

Apr 4, 2007

3,265

Instead of a metal-to-metal clutch or impact mechancism they use a hydraulic impulse mechanism to deliver torque to the fastener. Unlike the hammering of the impact mechanism the pulse mechanism uses hydraulic pressure build and release to impart the impulse to drive the fastener.

Here is a link to Aimco who has been in the business for a while:

http://www.aimco-global.com/srchres...catky=77618&subcatky2=247189&subcatky3=196331

Ted

 

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• Jun 30, 2008

• #5

Newmanite

Mining

Aug 29, 2007

61

Are you trying to reinvent a job for the sake of a bolt that has 200 ft-lbs of torque?What type of bolt are you using?How about the trusty old torque wrench?

 

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• Jun 30, 2008

• #6

hydtools

Mechanical

Apr 4, 2007

3,265

Use a pneumatic nut runner. Plarad, Atlas Copco, Ingersoll Rand and many others.

Ted

 

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• Jul 2, 2008

• Thread starter
• #7

kkykylkyle

Industrial

Jun 26, 2008

6

I have been told that Impulse wrench, over time, is not as accurate with torque application because of the fact that it makes use of a clutch.

Is a pneumatic nut runner in this same category? I need something that I can trust relative to torque application over time but does not damage the threads as much as a impact gun.

Will a standard torque wrench fit my needs in this concern?

THANKS!

 

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• Jul 2, 2008

• #8

hydtools

Mechanical

Apr 4, 2007

3,265

No impact wrench should be used if torque accuracy is required. All impact wrenches use a clutch mechanism of sorts.

Nut runners are generally motor-driven gear sets with the final drive to the output. Higher output nut runners will require a reaction arm instead of depending on the operator to resist the torque. Run up to tight is slower than an impact wrench. Accuracy is more dependable than an impact wrench.

Ted

 

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