1. EPB 5672 High precision collet chucks
EPB 5672 External presentation
EPB 5672 High precision collet chucks
Longer tool life time, better surface finish due to a max. 3µm at 3xD run-out,
Higher transmittable torque and rigidity: higher productivity and process security,
Suitable for HSM (High speed machining),
Wide range offering optimised solutions, whether you privilege accessibility, rigidity or the best compromise between both,
Easy assembling of a large range of collets, including sealed collets.
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2. Product description Global overview
Maximum run-out with a new generation type 5672 collet is 3μm measured at 3xd gauge
length in relation to the external shank taper
Top of the collet at the same level as the top of the nut: no loss of rigidity
3 projections: short, medium and long, allowing optimized solutions to every needs
Coolant delivery through the tool, using sealed collets
Strong design (OD chuck body = OD nut) providing an optimized compromise between high rigidity and work-piece accessibility
Axi-symmetrical design = perfect balancing
Fine balanced at 3g.mm/kg (3g.mm for holders under 1kg; for holders <=HSK50: 1g.mm/kg, but 1g.mm when holder <1kg)
Designed for HSM
Wide offerof machine side connections (HSK-A, HSK-E, DIN, BT, CAT, Graflex, Seco-Capto)
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3. Product description Collet chucks body
Chrome coating to protect against oxydation
Highest grinding quality of the front taper
Stop screw with taper front with through coolant, available as accessories
Highest grinding quality of the front taper
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4. Product description Collet chucks body
High flexibility regarding the positioning of the tool shank in the collet → possibility to reduce the overhang of the tool in order to increase the rigidity of the assembly.
Collet fully seated in the pocket = perfect clamping of the tool, all along its shank.
The chucks internal central bore allows to insert the tool deeply in the holder=high flexibility regarding the depth positioning of the tool
EPB 5672
Other collet chucks
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5. Product description Conventional collets
Blue ring = identification of high precision ER HP collets
Overall high precision ground
Reduced number of slots (12 vs. conventional 16 slots) thanks to specific steel and heat treatment specific steel and heat treatment) => reduced deformation of the collet
Nominal clamping only, for an optimal contact surface between the tool and the collet’s bore, providing perfect positioning of the tool, concentricity and stability
Polished for a better clamping
Direct, manual fitting of the collet into the nut (no need for additional equipment)
Collets design = “damping” effect
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6. Product description Sealed collets
Same features as the ‘non-sealed collets’
Seals to plug the splits
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7. Product description Locking nut
Two cylindrical guides for a perfectly concentric clamping of the nut on the chuck
With trapezoïdal thread and extra-long guiding pads= perfect centring of the clamping nut on the chuck
Perfectly
Axi-symmetrical design (no asymmetrical clic-fit)
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8. Advantages and benefits (1/2)
Longer tool life, better surface finish
Run-out max. 3µm at 3xD,
Reduced tooling cost and tool changing time, making it a great a solutions for large series,
Better surface finish and tight tolerances machining possible, limiting the need for finish operations.
Suitable for ‘fragile’ modern cutting tools (CBN, PCD…)
High productivity, as a result of:
Higher transmittable torque and rigidity (tool clamping force up to more than double vs. existing collet chucks),
Designed for HSM:
Axi-symmetrical by design and fine-balancing guaranties a perfect balancing.
Reduced spindle load
Vibration damping effect resulting from the ‘collet’ design.
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9. Advantages and benefits (2/2)
Universal chuck offering very high flexibility
Suitable for all kind of machining operations (drilling, reaeming, milling…),
Allows to clamp several tool shank diameters on the same holder, using a combinaison of nuts,
Perfect combination between rigidity and accessibility to the workpiece,
Suitable for all possible methods of supplying cooling lubricant (AD, B, air cooling…).
Perfectly safe production process
High quality design and manufacturing of the collet chucks, collets and nuts provides:
Extremely high clamping forces=no risk of tool sliding out of the toolholder,
Reliable and performant positioning of the tool (axially and radially),
Accurate repeatability.
Dynamometric spanner guarantying the transmittable torque.
User friendly, long lifetime
Easy assembling of a large range of collets, for tool shanks Ø 1 to 20 mm (1/8" to 3/4"): low setting time and accurate repeatability
Dynamometric spanner preventing damages to the collet chucks.
Chrome coating ensuring protection against corrosion.
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10. Comparison to other technologies Surface finish
EPB 5672
Hydraulic chuck
Weldon
Shrinkfit holder
Conventional collet chuck
Machinings performed with the same cutting conditions.
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11. Comparison to other technologies Transmittable torque
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12. Comparison to other technologies Run-out – RPM – Balancing - Rigidity
EPB 5672 External presentation
Comparison to other technologies Run-out – RPM – Balancing - Rigidity
Max. run-out at 3xD
EPB 5672: 3 µm
Shrinkfit holders: 3 µm
Hydraulic: 5 µm
D-type collet chucks: 3 µm
Weldon: 10 µm
Max. RPM
EPB 5672: 100
Shrinkfit holders: 45
Hydraulic: 40
D-type collet chucks: 100
Weldon: 20
Balancing quality
EPB 5672: 3 g.mm/kg
Shrinkfit holders: 3 g.mm/kg
Hydraulic: 3 g.mm/kg
D-type collet chucks: 3 g.mm/kg
Weldon: 30 g.mm/kg
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13. EPB 5672 External presentation
Comparison to other technologies Clamping – Accessibility – Flexibility – Tool change time
Max. run-out at 3xD
EPB 5672: 3 µm
Shrinkfit holders: 3 µm
Hydraulic: 5 µm
D-type collet chucks: 3 µm
Weldon: 10 µm
Max. RPM
EPB 5672: 100
Shrinkfit holders: 45
Hydraulic: 40
D-type collet chucks: 100
Weldon: 20
Balancing quality
EPB 5672: 3 g.mm/kg
Shrinkfit holders: 3 g.mm/kg
Hydraulic: 3 g.mm/kg
D-type collet chucks: 3 g.mm/kg
Weldon: 30 g.mm/kg
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14. Product range EPB 5672 collet chucks
The EPB 5672 range is:
made of a variety of attachment,
for ER HP 16, ER HP 25 and ER HP 32 collets,
Sealed or non-sealed collets (see details on next slide)
In three different projections: short, medium and long.
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15. Product range EPB 5672 codification
EPB 5672 External presentation
Product range EPB 5672 codification
Diameter of the collets bore
Machine side back-end code
5672
Size + + +
Exemple: E
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16. Product range EPB 5672 collets
Sealed or non-sealed collets
Three sizes of collets:
ER HP 16 for diameter 1 to 10 mm
ER HP 25 for diameter 2 to 16 mm
ER HP 32 for diameter 2 to 20 mm
Non-sealed
Sealed
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17. Complementary products
EPB 5672 External presentation
Complementary products
Dynamometric spanners – to lock
Guaranties transmittable torques
Prevents nut, collet or tool damages
Build from a handle and a spanner adapted to the size of the collet,
Roller spanners – to unlock
Note: the use of a dynamometric
spanner to unlock the nut may damage its mechanism. + =
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18. Product launch Collet chucks ‘Conventional’ collets
‘Sealed’ collets
Available from the 15th of Sept., 2012
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19. © 2018-09-21, all rights reserved