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3 jaw vs 6 jaw [Archive]

28 Oct.,2024

3 jaw vs 6 jaw [Archive]

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milomilo

I have been looking at some 6 jaw chucks and was wondering what the advantages/disadvantages are. I've never used a 6 jaw before. Let me know what you think.

LKeithR

milomilo

Six jaw chucks are generally used for holding thinner pipes and tubes--the extra jaws minimize distortion. You definitely want to have a good 3-jaw for your go-to chuck. A 6-jaw would be a nice supplement but certainly not your first choice...

My current 3 jaw has .010 run out. Not too happy with that. Been shimming or using the 4 jaw to compensate.

terry lingle

scroll chucks are not intended for dead on holding of finished parts as there is no way to tweak the alignment to zero.
They are the go to chuck for any job starting from virgin stock and intended to be completed without ever being removed from the chuck.
Once you decide that you need to remove the part or start from a best possible accuracy condition the independent jaw chuck ( normally four jaw) is your only viable option.

GabZip

A six jaw with a BUCK mount is a good all around chuck. All of the benafits of a 4 jaw with better clamping.

JH35

A six jaw with a BUCK mount is a good all around chuck. All of the benafits of a 4 jaw with better clamping.

We only have a 6 jaw chuck for the toolroom lathe. If I need a 3 jaw, I just take every other one out.:) We have a collet chuck also which I find myself using frequently for small stuff. There is a 4 jaw kicking around somewhere, but the six runs pretty good and has some adjustment if you need it to be better.

Atached is a pic. Note the adjustment plate behind the chuck.

derekpfeiffer

Contact us to discuss your requirements of Lathe Machine 3 Jaw Chuck Price. Our experienced sales team can help you identify the options that best suit your needs.

If the part lends itself to being turned between centers...one can always put a center in a bad 3jaw, dress it, and proceed with excellent accuracy. :)

camdigger

If the part lends itself to being turned between centers...one can always put a center in a bad 3jaw, dress it, and proceed with excellent accuracy. :)

I've done this and was pleased to see that dodge show up on a Keith Fenner You tube video.

Dr_Stan

The main difference is price, although less distortion is another benefit. I do not have a three jaw only a 6 jaw Buck through adjust. One more plus is repeatability. Much better than a 3 jaw once it has been adjusted.

Which is Better? 3-jaw or Collet Chucks?

Is a standard, 3-jaw chuck or a collet chuck a better choice for your CNC turning machine? The answer is (as is true with so many decisions): It depends.

The advantages and disadvantages of each type of chuck must be considered in terms of your application lot sizes, range of material diameters, types of materials, length of workpieces, and dimensional tolerances, among other issues. Here are some facts to think about:

Versatility. If you&#;re running a number of different jobs with a variety of workpiece diameters, 3-jaw chucks may be the right choice. Collet chucks are best suited for smaller diameter workpieces, typically 3&#; or less. 3-jaw chucks are also better suited for machining longer workpieces because the longer collet chuck limits Z-axis travel.

Spindle performance: Because they are lighter in weight, collet chucks have less mass, so the lathe spindle gets up to speed faster and puts less strain on the spindle motor. Additionally, the lighter collet chuck enables handling of heavier workpieces at higher spindle RPMs.

Tight tolerances: For high precision work, collet chucks maintain equal clamping force around the workpiece, rather than at only 3 points and, therefore, are less affected by centrifugal force. This provides for better concentricity and greater accuracy.

Changeovers. It all depends on your application. Collet chucks generally require less time to change, however 3-jaw chucks accommodate a greater range of diameters without requiring changeovers.

Of course, there are a number of other issues to consider when deciding which type of chuck to use &#; as well as other factors that affect CNC machine productivity. The applications engineers at Gosiger can help. For more than 95 years Gosiger has served CNC shops with unmatched customer service and support. To learn more contact your nearest Gosiger facility.

The company is the world’s best hydraulic chucking cylinder supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.

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