
LYNDEX-NIKKEN
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Pertanyaan umum tentang LYNDEX-NIKKEN dari 3G Electric.
What is the difference between LYNDEX-NIKKEN ER collets and SK collets?
ER collets are a standardized collet system with a tapered clamping range, commonly used in ER collet chucks for holding cutting tools with shank diameters from 1 mm to 34 mm depending on the ER series (e.g., ER16, ER40). SK collets are designed for use with SK spindles, which have a different taper angle and pull-stud retention mechanism, typically found on European machine tools. SK collets offer higher clamping force and rigidity for heavy-duty machining. Both are available from LYNDEX-NIKKEN in various sizes.
Are LYNDEX-NIKKEN 5C collets compatible with standard 5C collet chucks?
Yes, LYNDEX-NIKKEN 5C collets conform to the industry-standard 5C collet dimensions, making them compatible with most 5C collet chucks, closers, and fixtures. The 5C series is a round collet system with a 1-1/16 inch through-hole, commonly used for workholding in lathes, grinders, and indexing fixtures. LYNDEX-NIKKEN offers 5C collets in metric and inch sizes, such as the 17 mm model (MPN 520-017).
What is the runout specification for LYNDEX-NIKKEN ER collets?
LYNDEX-NIKKEN ER collets are manufactured to a standard runout tolerance of 0.0004 inches (0.010 mm) at the nose, measured at 4 times the collet diameter from the collet face. This applies to standard ER collets in series ER16, ER25, ER32, and ER40. For higher precision applications, LYNDEX-NIKKEN offers ultra-precision collets with tighter tolerances, but the standard line meets typical machining requirements for drilling, reaming, and light milling.
Can LYNDEX-NIKKEN rigid tap collets be used for both through-hole and blind-hole tapping?
LYNDEX-NIKKEN rigid tap collets, such as the ER40 model ET40-700 for 3/8 inch taps, are designed for rigid tapping applications where the tap is held without a floating holder. They can be used for both through-hole and blind-hole tapping, provided the machine tool has synchronized spindle control (rigid tapping capability). The collet provides positive drive and concentricity, reducing tap breakage. For blind holes, ensure the tap depth is within the collet's clamping range.
What materials are LYNDEX-NIKKEN collets made from?
LYNDEX-NIKKEN collets are typically manufactured from high-alloy tool steel, such as AISI 8620 or equivalent, hardened and tempered to a hardness range of HRC 58-62. The collets undergo surface treatments like nitriding or black oxide to improve wear resistance and corrosion protection. The exact material specification may vary by product series, but the construction is designed to maintain dimensional stability under clamping forces and thermal cycling during machining.
How do I select the correct LYNDEX-NIKKEN collet for a 5/8 inch hex workpiece?
For a 5/8 inch hex workpiece, use a hex-shaped collet such as the LYNDEX-NIKKEN 16C Hex Collet (MPN 163-040). The 16C series collet has a hex bore that matches the workpiece shape, providing positive drive and preventing rotation. Ensure the collet size corresponds to the hex dimension across flats (5/8 inch). The collet is designed for use with a 16C collet chuck or closer. Verify the collet's clamping range and compatibility with your machine's spindle or workholding system.











































