BT40 ER16 3.93" Collet Chuck Tool Holder 4 PCS
SKU
202-5995-4
Online Price Only: $195.00 Regular Price: $279.80
In stock
Shipping UPS Ground
Details
| Mfg SKU # | 202-5995-4 |
|---|---|
| Tool Holder Category | Collet Chuck |
| Brand | Tegara |
| shank size | BT40 |
| projection length | 3.93 |
| max rpm balanced to | 12000 |
| TIR (inch) | 0.0001 |
| drawbar thread size | M16x2.0 |
| Stop Screw Thread Size | M11 x 1.0 |
| Dual Contact Tool Holder | No |
| collet series | ER16 |
| collet chuck style | long reach |
| collet nut diameter | 1.26 |
| Coolant Through | Yes |
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 and improve runout tolerance
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Pilot Contact
Inside bore are precision turned to engage a better contact with retention knob's pilot to increase rigidity
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Taper End Face
Precision turning surface finish provide perpendicular contact with the flange of retention knob to increase rigidity
Tech Specification
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Taper Size
BT40
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Collet Series
ER16
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Projection Length
70mm
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Collet Size Range
0.03125" - 0.3125"
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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
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Max Torque
50 ft/Lbs
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Collet Nut Diameter
1.08"
Spotlight
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Mirror Finish
To achieve AT3 or better taper contact as an industry standard, our taper surface are precision ground on Shigiya CNC grinder from Japan. We are not satisfied with just meeting the industry standard, the surface roughness on the taper is maintained to mirror finish.
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High Torque Collet Nut
The maximum torque is laser marked on the ER collet nut face to take the guess game out of the way to ensure proper amount of force should be applied while tightening. 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.
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Asymmetrical O-Ring
Internal clamping ring's shape is design to minimize out-of-balance compare to the standard off-center o-ring design from other standard ER collet nut, achieving 12,000 RPM without needed to drill holes on the collet nut body when placed on a dynamic balanced machine to preserve ER collet nut's body strength.
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