BT60 Series Heavy-Duty SLN Side-Lock End Mill Holder

BT60 Series Heavy-Duty SLN Side-Lock End Mill Holder

Ultra-rigid BT60 taper side-lock end mill holders with dual set screw design, maximum clamping force, 25-50.8mm clamping range, designed for heavy-duty roughing on large BT60 CNC machining centers.
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Description

BT60 series heavy-duty SLN side-lock end mill holders are manufactured from high-strength alloy steel with overall vacuum quenching and precision grinding, the ultimate tool holding solution for heavy-load roughing, deep-hole milling and drilling applications on large BT60 spindle CNC machining centers.
  1. Dual set screw side-lock clamping design delivers unmatched gripping force and rigidity, completely eliminating tool slippage even under the most demanding heavy cutting loads.
  2. Ultra-precision machining ensures ≤0.005mm runout accuracy at 4×D from the holder face, delivering excellent machining precision and surface finish even under maximum loads.
  3. Complete size range supports 25mm to 50.8mm tool shank diameters, covering all common large-diameter end mills, U-drills and drill sizes.
  4. Standard 135L length design meets the depth requirements of most heavy-duty machining applications.
  5. Standard 7/24 taper design is 100% compatible with all mainstream BT60 spindle CNC machine tools.
  6. Black oxide surface treatment provides excellent corrosion resistance and long-term durability in harsh industrial environments.

Complete Specification Table (Unit: mm)

Model L L1 L2 L3 L4 L5 L6 D d1 d2 T Weight Price
BT60-SLN25-135 296.8 135 87 48 110 25 24 155 25 60 M12
BT60-SLN32-135 296.8 135 87 48 120 28 24 155 32 65 M16
BT60-SLN40-135 296.8 135 87 48 120 32 30 155 40 80 M16
BT60-SLN42-135 296.8 135 87 48 120 32 30 155 42 80 M20
BT60-SLN50-135 296.8 135 87 48 120 35 35 155 50 90 M20
BT60-SLN50.8-135 296.8 135 87 48 120 35 35 155 50.8 90 M20

Parameter Explanation

  • L/L1/L2/L3/L4/L5/L6/D/d1/d2 : Overall and mounting dimensions (unit: mm), corresponding to the engineering drawing
  • T : Thread specification of the side-lock set screw
  • Weight : Net weight per unit (unit: KG)
  • Model Naming :
    • BT60: 7/24 taper spindle interface standard for large machining centers
    • SLN: Side-lock end mill holder series
    • The number after SLN indicates the maximum clamping diameter (e.g., SLN50 = 50mm clamping diameter)
    • The last number indicates the total length of the tool holder (e.g., 135 = 135mm length)

Applications

CNC Machining

Ideal for CNC lathe, milling and machining center operations, ensuring high-precision dimensional control and reliable tool holding for mass production.

Quality Control Labs

Suitable for quality inspection departments and calibration labs, providing accurate measurement data to verify product compliance with ISO and industry standards.

Mold & Die Making

Perfect for mold and die workshops, where micron-level precision tools and gauges are essential for complex cavity machining and final inspection.

OEM/ODM Projects

Customizable solutions for OEM and ODM manufacturing partners, offering tailored measuring tools and CNC accessories to meet unique production requirements.

Automotive Manufacturing

Designed for automotive component production lines, ensuring consistent precision and durability in engine parts, transmission components and assembly processes.

Aerospace & Precision Engineering

Ideal for aerospace and defense manufacturing, where ultra-high precision instruments and reliable tool holders meet strict quality and safety requirements.

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