1" ER32 Collet??

rkward

Cast Iron

Joined

Jul 30, 2007

Location

USA - Ohio

• Sep 28, 2009

• #1

I would love to have an ER32 collet with a 1" opening. Does anyone know if such a thing exists. I have not found one using the web so far so most likely it does not. I did see on a previous post that someone had said the "2" "ER32" indicates the largest possible value is 20 mm ...

 

bcstractor

Titanium

Joined

Apr 25, 2004

Location

Monument CO USA

• Sep 28, 2009

• #2

I thought 32 was just the OD. Otherwise an ER25 would take a 50mm.

Chris P

 

WILLEO6709

Diamond

Joined

Nov 6, 2001

Location

WAPELLO, IA USA

• Sep 28, 2009

• #3

you have to go to er40 to get 1 inch capacity

 

T

Troup

Titanium

Joined

Jun 18, 2007

Location

New Zealand

• Sep 28, 2009

• #4

I seem to recall RegoFix or one of the other Euro suppliers do make an oversize or two for ER32, but I think it maxes out at 22mm. You would need to handle these with care: they will be easy to snap

There's just no way of pushing the envelope to make a 25mm ER32 - unless you find an extra dimension after z and before t
;-)

 

fmari --MariTool-

Titanium

Joined

Nov 15, 2005

Location

Illinois

• Sep 28, 2009

• #5

It is possible. Wall gets pretty thin and the collet itself gets pretty short. I have a couple and have toyed with the idea of selling them. I decided it presents too much liability.

 

rkward

Cast Iron

Joined

Jul 30, 2007

Location

USA - Ohio

• Sep 29, 2009

• #6

It would be used for work holding rather than cutting tools and fairly low speed < 1200 rpm so I don't see as too much risk using this way. If you change your mind, drop me a PM ... Sure would help me out!

fmari --MariTool- said:

It is possible. Wall gets pretty thin and the collet itself gets pretty short. I have a couple and have toyed with the idea of selling them. I decided it presents too much liability.

Click to expand...

 

P

Panza

Stainless

Joined

Oct 23, 2005

Location

Lillehammer, Norway

• Aug 5, 2013

• #7

I have metric ER32 collets up to 26mm. They work just fine, no problems.
I have never seen them so large in inches though. I would like to have a 1" too.

 

F

FileCard

Plastic

Joined

Jan 10, 2019

• Jan 10, 2019

• #8

Large ER32 Collets

Panza said:

I have metric ER32 collets up to 26mm. They work just fine, no problems.
I have never seen them so large in inches though. I would like to have a 1" too.

Click to expand...

If anyone is still looking for ER32 Collets larger than 20mm, including 1", then the ebay site for Gloster Tooling were advertising them recently.
eBay - Page Not Found

 

jhovel

Aluminum

Joined

Apr 25, 2011

Location

Bendigo, Victoria, Australia

• Jan 15, 2019

• #9

Also available here: 1pcs ER 32 ER32 Spring collet clamping tool collets drill chuck arbors for CNC milling lathe tool/milling cutter DIN 6499B -in Tool Holder from Tools on Aliexpress.com | Alibaba Group
I use these and I'm happy with them....

 

R

rufftrack

Plastic

Joined

Aug 26, 2019

• Sep 12, 2019

• #10

rkward said:

I would love to have an ER32 collet with a 1" opening. Does anyone know if such a thing exists. I have not found one using the web so far so most likely it does not. I did see on a previous post that someone had said the "2" "ER32" indicates the largest possible value is 20 mm ...

Click to expand...

Hi I just saw these on ebay I don't know if they would work for you they are mm.
Here is the link

Oversized ER32 Collet - 21mm (53/64), 22mm (7/8), 23mm (57/64) or 24mm (15/16) | eBay

and the second link


Oversized ER32 Collet - 25mm (31/32") or 26mm (1-1/32") USA/Canada | eBay

 

Cole2534

Diamond

Joined

Sep 10, 2010

Location

Oklahoma City, OK

• Sep 12, 2019

• #11

You're a dollar short and a decade late.

 

Georgineer

Stainless

Joined

Dec 27, 2008

Location

Portsmouth, England

• Sep 13, 2019

• #12

Cole2534 said:

You're a dollar short and a decade late.

Click to expand...

Though I generally get huffy when I discover I'm reading an archaeological thread, I missed this one last time round and there is information in it which I find valuable. I vote we let him off with a caution.

George

 

EPAIII

Diamond

Joined

Nov 23, 2003

Location

Beaumont, TX, USA

• Sep 13, 2019

• #13

The 32 or any of the other size numbers for ER collets refer to the OD, in mm, at the largest/front end of the rear taper. The front taper, which fits in the nut, will be just a bit larger than this: I don't have an explanation for that, but it is.

The size of the largest hole that a given series of ER collets can have is determined by that OD and by the geometry of the two tapers. It has nothing to do with the second digit of the nominal size.

I did see on a previous post that someone had said the "2" "ER32" indicates the largest possible value is 20 mm ...rkward

Click to expand...

 

fmari --MariTool-

Titanium

Joined

Nov 15, 2005

Location

Illinois

• Sep 13, 2019

• #14

When looking at the tool holder. The theoretical sharp corner where the tapered bore meets the front face with be 32mm exactly. On the ER32 the other end of the taper bore should not be larger than .95" Id. If any larger coolant sealing collets may leak. So 1" ER32 collets will not pass thru the tapered bopre area, thus you can't swallow much depth.