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  • No Jaw reforming required! What is the T-nut ‘Tnut-Plus’ for the standard chuck BR series? |Promotion is underway

No Jaw reforming required! What is the T-nut ‘Tnut-Plus’ for the standard chuck BR series? |Promotion is underway

03/03/2023
Yu Tamari
General Director

Chuck T-nut KITAGAWA

Soft Jaw (raw claw) reforming is performed during lathe turning operations that require precision. You think it is an unavoidable process to ensure a firm grip without any displacement or misalignment...don't you?

In fact, there is a revolutionary T-nut that overturns the common sense of setup and eliminates the need to reform the jaws! Why is it not necessary to reform the jaws even after detaching and attaching them? In this article, we will reveal the mechanism of Kitagawa's proprietary, novel T-nut that overturns the conventional wisdom of setups.


No jaw reforming required !!
What is the revolutionary T-nut "Tnut-Plus“?

Chuck T-nut KITAGAWA


"Tnut-Plus“ developed by Kitagawa is a dedicated T-nut for its standard chuck BR Series that eliminates the need for reforming soft jaws. Even if they are detached from the chuck, they can be attached to the same position over and over again, maintaining the same gripping accuracy as immediately after molding.



★ Advantages of Tnut-Plus
◎ No jaw reforming required
◎ Significantly reduces setup time
◎ Easier setup and changeover operations
◎ Less frequent purchase of soft jaws


Setup time reduction with Tnut-Plus

The following is a trial calculation on how much time will be saved in setup time if the reforming of soft jaws is no longer necessary:

30 minutes per jaw reforming / 3 times per day / 300 operating days per year
= 450 hours saved per year

Based on this, the human cost allocated to setup can also be calculated. Furthermore, with Tnut-Plus, the frequency of replacing soft jaws, which used to be worn out due to grinding after each reforming process, is also greatly reduced.


How is it possible to maintain gripping accuracy even when soft jaws are detached and attached?

Introducing a revolutionary mechanism that Tnut-Plus achieves zero gaps.

<Conventional T-nuts>
Designed with room to spare to fit in the groove of the master jaw and soft jaw. Since there is a slight gap, the position of the nut shifts each time it is attached, resulting in deteriorated gripping accuracy.

Chuck T-nut KITAGAWA


<Structure of Tnut-Plus>
Design with unevenness on the side.
The convex part is wider than the jaw groove.

Chuck T-nut KITAGAWA


One might think that it would be impossible to fit in Jaw's groove. However, the Tnut-Plus fits in a tilted state to the master jaw and the soft jaw. When the bolt is tightened in this state, the serration engagement forces the two grooves and Tnut-Plus to straighten. The Tnut-Plus, which is forcibly trapped in the narrow jaw groove, fits snugly with a slight deformation, resulting in a zero gap. Tnut-Plus is a product of a proprietary technology that is patented in Japan.


Chance to try together with BR chuck! Discount campaign is underway

Tnut-Plus is a special T-nut developed to maintain the repeatability of Kitagawa's “BR series” chucks below 0.01 mm T.I.R. We are currently conducting a worldwide promotion for customers to experience the benefits of using together with the series

★ Available at a limited time price!
・ Tnut-Plus customers will also receive soft jaw offer at a promotional price!
* Prices and periods vary by country and region.
・ Tnut-Plus size range: 6 / 8 / 10 / 12inch (fits BR series chucks)
・ Up to 50% discount from the list price

Kitagawa soft jaw compatibility chart

Jaw model
Applicable chuck model
Shape
Set quantity
SJ06B1
BR06, BB206, ML06, N-06, NL06, QJR07, AS06, NRC06
2
3
SJ06L1A
B-206, BS306, HOH-206, BL206
2
3
SJ08A1
BRT08, BT208, BBT208, NLT08, AT08
1
3
SJ08B1
BR08, B-208, BB208, BS308, BL-208, HOH-208, ML08, DL208, N-08, NL08, AS08, NRC08, QJR08
2
3
SJ10A1
BRT10, BT210, BBT210, NL10, AS10, NRC10, NLT10, AT10
1
3
SJ10B1
BR10, B-210, BB210, BS310, BL-210, UVE200K, UVE250K, HOH-10K, QJR10, N-10
2
3
SJ12A1
DL212, HOH-12K, N-12, NL12, NLT12
1
3
SJ12N1
BR12, B-212, BB212, BL-212, QJR12, BT212, BBT212, BLT212
1
3

Chuck T-nut KITAGAWA



If you are looking for a lathe power chuck or design chuck, or if you are interested in the BR series and "Tnut-Plus" in Thailand/ASEAN, please contact us from the form below.



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