CAT40 ER20 3.5" Dual Contact Collet Chuck Tool Holder
SKU
202-7041
$91.00
In stock
Shipping UPS Ground
Details
| Mfg SKU # | 202-7041 |
|---|---|
| Tool Holder Category | Collet Chuck |
| Brand | Tegara |
| shank size | CAT40 |
| projection length | 3.5 |
| max rpm balanced to | G2.5 20000 |
| TIR (inch) | 0.0001 |
| drawbar thread size | 5/8x11UNC |
| Stop Screw Thread Size | M14 x 1.0 |
| Dual Contact Tool Holder | Yes |
| collet series | ER20 |
| collet chuck style | standard |
| collet nut diameter | 1.34 |
| Collet Nut Style | Hex |
| Maximum Torque Ft/Lb | 75 |
| Coolant Through | Thru Spindle & DIN-B Flange |
Design
The Devil's In The Details
When you aspire to create one of the most competitive tool holders on the market, the details count. We invest heavily in extensive automation manufacturing and top of the line Mazak and grinding machines while pouring our heart and soul into bringing the tool to life. While not satisfied with just being good, so through customer data and rigorous testing, our R&D team are able to blend over 40 years of manufacturing know-how and real-world feedback to improve the tool holder's design and performance.
Start to Finish
We optimize our process for both efficiency and accuracy by utilizing Kawasaki robotic arms to load and unload bar stock into the Mazak multi-tasking machine centers. We use SCM420 alloy steel to lay the foundation and case harden to RC 57-59 with a core of RC 34-39 to provide good core strength and maximize wear life. The core creates a dampening effect which reduces vibration in high speed milling to improve surface finish. The AT3 or better taper accuracy ensures 80% or better taper contact with spindle and using Stotz Air/Electronic Gaging for inspection on the taper. We precision grind the internal bore surface to <.0002" TIR and all bores are ground on a CNC grinder to ensure close run-out tolerance and evenly contact between the collet and the bore pocket. We use Haimer laser balancing machines to deliver a tool that can operate flawlessly at 20000 RPM and Mitutoyo or Mahr indicators to check the run out.
Craftmanship
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Mirror Finished
Taper ground to AT3 or better specification ensures 80% or more contact with spindle to reduce harmonics, improve runout tolerance and deliver consistence performance
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Flange Contact
Precision mill finished from multi-tasking Mazak machine on the flange face to eliminate the 1/8" gap between flange and spindle nose to minimize vibration
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ER Collet Nut
No longer having an off-center internal collet ring, this collet nut's internal clamp is designed with balance in mind while it's easy to snap-in snap-out ER collet
Tech Specification
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Taper Size
CAT40
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Collet Series
ER20
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Projection Length
3.500"
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Collet Size Range
0.0625" - 0.5000"
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TIR (at collet face)
< 0.0001"
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Max Balanced To
G2.5 20,000 RPM
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Coolant Type
Thru Spindle & DIN-B Flange
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Max Torque
75 ft/Lbs
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Collet Nut Diameter
1.34"
Spotlight
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Dual Contact
With simultaneous contact on taper and flange face between the spindle and tool holder, dual contact tooling eliminates the 1/8” gap between the flange face and the spindle nose to increase rigidity, minimize vibration, extend cutting tool tool life, and greatly improve workpiece surface finish at aggressive speed & feed
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DONE IN ONE
By utilizing DONE IN ONE capability from Mazak Integrex machine with a second turning spindle, all processes from raw bar stock material to final machining in just one machine to improve machining accuracy and streamline production output.
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High Torque Collet Nut
Innovative coating process significantly increases the clamping force by 75% compared to standard ER collet nut. More gripping force provides better rigidity and reduces the possibility of losing grip on the round shank which lead to expensive damage on cutting tools and work piece material.
- SHARS Dual Contact tool holder can only be used on machine center with dual contact spindle
- Compatible with BIG-PLUS ® spindles.
- *BIG-PLUS® is a trademark of Daishowa Seiki Kabushiki Kaisha; Big Daishowa Seiki Co., Ltd., Corp.
Compatible with BIG-PLUS® spindles, but not licensed.
What’s Included
What's Included
- Each holder comes with a balance data report
- Internal set screw is included and can be used as a stopping pin to prevent end mill or drill from sliding backwards while performing heavy cutting
- Set screw also has a thru hole for coolant
