YUKIWA SEIKO INC Japan
All Spring Collets are
Made in Japan
Simple Workholding Devices
- Features/Specifications
- Collet adaptor CA series
- How to use collet adaptor
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Simple workholding devices
Simple workholding devices (Collet adaptor CA series) are simple unit that makes the spring collet open and close by manually tighten and loosen the collet cap with the attached lever. The workpiece can be clamped and unclamped easily in attached with spindles or rotary tables. The way to open and close the collet is easy. Just insert the attached lever into the outside diameter hole of the collet cap and turn it. It can be simplified your setting time process, and it contributes to improvement of your productivity greatly.Collet adaptor CA series
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Unit:mm
| Model | Applicable collet | Chuck capacity for round diameter |
D | D1 | D2 | D3 | L1 | L2 | L3 | Q | |
| Min. | Max. | ||||||||||
| CA 75-20 | YSS20 | 3 | 20 | 62 | 76 | 66 | 30h6 | 40 | 10 | 4 | M6×14 |
| CA 90-25 | YSS25 | 3 | 25 | 78 | 95 | 76 | 40h6 | 47 | 12 | 5 | M6×14 |
| CA110-25 | YSS25 | 3 | 25 | 88 | 106 | 76 | 40h6 | 47 | 12 | 5 | M8×16 |
| CASNC170-25 | YSS25 | 3 | 25 | 88 | 110 | 76 | 60h6 | 47 | 12 | 6 | M8×16 |
| CA160-40 | YSS40 | 6 | 40 | 130 | 152 | 116 | 60h6 | 77 | 18 | 6 | M10×20 |
| CA135-56 | YSS56 | 6 | 56 | 115 | 135 | 135 | 70h6 | 96 | 14 | 6 | M8×25 |
| * | CASNC170-25 can be set direct to the top side of the table of JNC(H)170. |
| * | Special size adaptors can be manufactured in regards to customer’s request. |
| * | Collet chuck unit for automation can also be manufactured. |
Spring collet YSS series
Spring collet YSS series are spring collets that can hold round workpiece easily and accurately in machining with rotary tables and index tables. YSS series can be used with the exclusive collet adaptors. YSS20 and YSS25, of which collet diameter is from 3mm to 20mm, are stocked in units of 1mm. In addition to standard round bore, collet diameter can be made square bore by a special order. We can also provide custom sizes or slit blank collet to be holed by customers themselves. |
 Blank collet |
Unit:mm
| Model | Chuck capacity for round diameter |
Hexagon dia. Max. |
Square dia. Max. |
Applicable collet adaptor | |
| Min. | Max. | ||||
| YSS20 | 3 | 20 | 17 | 14 | CA75-20 |
| YSS25 | 3 | 25 | 21 | 17 | CA90-25, CA110-25, CASNC170-25 |
| YSS40 | 6 | 40 | 30 | 25 | CA160-40 |
| YSS56 | 6 | 56 | 45 | 36 | CA135-56 |
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Specify the collet capacity when placing the order. |
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As for YSS40 and YSS56, the collet capacity will be created after order. |
How to use collet adaptor
We mention as an example the case where it attaches to CNC Rotary Tables, and explain the procedure used.
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| 1. | Attach collet adaptor CA to the rotary table. | 2. | Insert spring collet YSS into the collet adaptor. | 3. | Tighten the collet cap on the collet adaptor lightly by hand. | |||
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| 4. | Attachment of the collet adaptor and spring collet completed. | 5. | Insert a workpiece into inner diameter of the spring collet. | 6. | Turn the collet cap with the attached lever. | |||
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| 7. | Turn the lever and make the workpiece clamped. | 8. | Attachment of the workpiece completed. | 9. | Machining starts. | |||
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Perform center alignment before attaching collet adaptor CA to the rotary table. |
* |
After machining has been completed by one time, umclamp the workpiece, change its position and make it clamped again for the next machining. |