High Quality external thread NER25 NUT for NER25 tool holder

High speed high accuracy high durability NER25 Type nuts

Chongde  NER25 External thread Nut made by 20CrMnTi material. All the nuts are through long time cryogenic treatment and thermal aging treatment to improve the stability of accuracy and dimensions. All the ER nuts are pre balanced G2.5 30000rpm. The surface with nickel coating that can improve the hardness and endurance of nuts. Also it has cleaness better, anti-rust, stable accuracy and smooth surface features. ER NER type nut is using with Chongde BT30/40/50-NER hidden barrel clamp tool holder & can use with ERA Zero-Z or ERA toolholders. The ER NER type Nut is used with NER special wrench, if need can accept customizing.

Comprehensive features of NER nuts

1.Material:20CrMnTi.

2.Heat treatment and thermal aging treatment have improved the stability of accuracy and dimensions.

3.Thread and a slope of 30 degrees have once molding processed.The tolerance class of thread use 4H,accuracy detected one by one.

4.Pre-balance is G2.5-20000RPM.

                       G2.5-30000RPM.

                       G6.3-18000RPM.

5.Surface coating processing treatment,improve surface hardness and endurance,cleaness better,antirust,accuracy more stable,surface more smooth,feel comfortable,appearance nice.

How to install the collet nut?

1.Put the collet into the nut,turn the collet slightly.Push it into the nut at the offered direction evenly when the offset flange sinks into the undercut of the collet.

2.Fix the nut and the collet on the spindle rotate the nut until  the collet is in pressing,Wipe the straight shank of cutter,and instert it into the polot hole.Tighten the nut with a wrench tilll the cutter is clamped heavily(Caution:never tighten the nut without cutter in it for it will break).

3.When changing the tool.Loosen the nut and it shall bring out the collet and the cutter together.And then draw the cutter out push out slightly the collet in the offered direction,it shall be ready for any change of the cutter.

Features:

1.Package: plastic boxes and also can pack according to your requests.
2.Delivery time:Sample within 7 days and others 35 days.

I    Fast reply 
II   Favourable price
III   High quality products
IV   Fast delivery
V  Good after-sales service

1.Are you factory or Trade Company?
We are industry and trade integration.
2.Could you supply samples?
Yes ,free samples for some products.
3.Where do you export?
The whole world.
4.Could you produce non-standard products?
Yes ,we can .Please supply samples or drawing.
5.What are the shipping ways?
By intemational express,by air ,by sea are all OK.
6.Do you have minimum order quantity?
Conventional Products don't have.The minimum order quantity of non-standard products is 50pcs.
7.What's your delivery time?
Less than 25 days after order confirmed.