BT30 Series SLN Side-Lock End Mill Holder

BT30 Series SLN Side-Lock End Mill Holder

High-rigidity BT30 taper side-lock end mill holders with superior clamping force, available in 6-25mm clamping diameters and multiple lengths, ideal for heavy-duty milling and roughing operations on BT30 CNC machining centers.
High Precision
ISO/CE Certified
Industrial Durability
OEM/ODM Support
Fast Global Delivery
Professional After-Sales
Inquire Now View Applications
Angle head
Products

Description

BT30 series SLN side-lock end mill holders are manufactured from high-strength alloy steel with overall vacuum quenching and precision grinding, the preferred tool holders for heavy-load roughing and milling applications on BT30 spindle CNC machining centers.
  1. Side-lock clamping design delivers exceptional gripping force and rigidity, effectively preventing tool slippage during heavy cutting loads.
  2. High-precision machining ensures ≤0.005mm runout accuracy at 4×D from the holder face, delivering excellent machining precision and surface finish.
  3. Complete size range supports 6mm to 25mm tool shank diameters, covering all common end mill sizes.
  4. Multiple length options (75L/80L/90L) are available to meet different machining depth requirements.
  5. Standard 7/24 taper design is fully compatible with all mainstream BT30 spindle CNC machine tools.
  6. Black oxide surface treatment provides superior corrosion resistance and long service life in industrial environments.

Complete Specification Table (Unit: mm)

Model L L1 L2 L3 L4 L5 L6 D d1 d2 T FIG Weight Price
BT30-SLN6-75 123.4 75 12 10 50 10 12 46 6 25 M6 1 0.6KG
BT30-SLN8-75 123.4 75 14 12 50 12 14 46 8 28 M8 1 0.65KG
BT30-SLN10-75 123.4 75 15 14 55 14 15 46 10 32 M10 1 0.7KG
B30-SLN12-75 123.4 75 20 16 60 16 20 46 12 40 M10 1 0.75KG
BT30-SLN16-75 123.4 75 22 18 60 18 22 46 16 45 M10 1 1.15KG
BT30-SLN16-90 138.4 90 22 18 60 18 22 46 16 45 M10 1 1.2KG
BT30-SLN20-80 123.4 75 25 20 70 20 25 46 20 50 M12 2 1.15KG
BT30-SLN20-90L 138.4 90 25 20 70 20 25 46 20 50 M12 2 1.2KG
BT30-SLN25-90L 138.4 90 24 25 70 25 24 46 25 55 M12 2 1.9KG

Parameter Explanation

  • L/L1/L2/L3/L4/L5/L6/D/d1/d2 : Overall and mounting dimensions (unit: mm), corresponding to the engineering drawings
  • T : Thread specification of the side-lock set screw
  • FIG : Structural type identifier (1=standard type, 2=reinforced type for larger diameters)
  • Weight : Net weight per unit (unit: KG)
  • Model Naming :
    • BT30: 7/24 taper spindle interface standard
    • SLN: Side-lock end mill holder series
    • The number after SLN indicates the maximum clamping diameter (e.g., SLN16 = 16mm clamping diameter)
    • The last number indicates the total length of the tool holder (e.g., 75 = 75mm 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.

Hot Products