Flange Mount Fixed HDC Hydraulic Expansion Chuck (Direct Flange Installation Hydraulic Clamping Head)

Description

1. Precision Integral Flange Direct Mount Structure
   The top is equipped with a large-diameter fully ground positioning flange with evenly distributed standard bolt mounting holes. It can be directly locked onto the machine spindle flange surface, ensuring ultra-high concentricity after installation. The thickened transition curved surface eliminates stress concentration and provides outstanding overall rigidity to avoid vibration during long-duration continuous cutting.
2. Ultra-low Runout Closed Hydraulic Expansion Clamping Core
   A fully sealed hydraulic oil chamber is built inside the main body; the side hydraulic pressure screw controls uniform expansion of the inner clamping bore to achieve full-surface close fitting with straight-shank cutting tools. Radial runout is controlled ≤0.002mm at the 3xD clamping length, which significantly optimizes workpiece surface finish and extends the service life of carbide drills, end mills and reamers.
3. Wear-resistant Deformation-proof Hardened Steel Body
   The entire blank undergoes overall quenching heat treatment. The outer surface adopts matte black anti-rust wear-resistant coating, while the inner clamping hole and flange positioning surface are mirror precision ground. It resists permanent deformation and metal abrasion under long-term high-speed heavy cutting, maintaining consistent ultra-precision clamping performance in mass production.
4. Customizable Full-size Customization Service
   No fixed unified standard size series; all core dimensions (flange outer diameter, mounting hole layout, inner clamping bore D1, overall body length) can be customized according to customer machine spindle drawings. Compatible with all conventional straight shank tool diameters: 6mm, 8mm, 10mm, 12mm, 16mm, 20mm, 25mm, 32mm.
5. Targeted Application for Fixed Processing Equipment
   Designed for equipment without automatic tool change function: CNC special drilling/milling machines, automated fixture gantry stations, precision surface grinders, vertical mold engraving machines, automotive component dedicated processing equipment and batch 3C electronic part machining lines.

Dimension Specification Note

1. D1: Inner hydraulic clamping bore diameter (6~32mm optional)
2. Flange OD: Outer diameter of mounting flange (custom range 80~200mm)
3. Mounting hole: Hole quantity, hole diameter and circle diameter customizable
4. Overall length: Total height of hydraulic chuck main body customizable
5. Spindle interface: Matching positioning step size customizable

Custom Model Naming Rule

• FL: Flange mount fixed series code
• HDC: Hydraulic expansion chuck series
• 12: Inner clamping bore D1 = 12mm
• 120: Outer diameter of mounting flange = 120mm