BT30 High Precision Hydraulic Tool Holder

Core Advantages of Hydraulic Tool Holders

1.Ultra-high clamping & rotational precision for consistent machining accuracy

Hydraulic pressure grips the tool shank evenly at 360°. Radial runout is controlled within 3 μm at 4× tool diameter, with stable repeat runout. It greatly improves dimensional accuracy in drilling and reaming, prevents tool breakage caused by deflection, and ensures even cutting load on all flutes of multi-edge cutters to reduce uneven tool wear.

2.Full-circumference uniform clamping with powerful clamping force & high rigidity

Unlike ER collets with concentrated point pressure, hydraulic oil exerts consistent force along the full length of thin-walled sleeves to deliver high clamping torque. It resists tool deflection and slipping during heavy cutting & deep cavity machining, ideal for carbide end mills, drills, reamers and taps.

3.Simple operation & fast tool change, no auxiliary equipment required

Only one hex wrench is needed to tighten/release the pressurizing screw. No shrink fit machine or hydraulic power unit is required. Tools can be replaced quickly even in narrow turret spaces without torque calibration, minimizing downtime.

4.Pre-balanced for high-speed finish machining

Factory pre-balanced to G2.5 balance grade, stable up to 25,000 RPM. Free of centrifugal imbalance during high-speed milling and mold mirror finishing, compatible with BT, HSK, SK spindle interfaces

5.Wide compatibility with reduction sleeves for various tool sizes

Sealed intermediate sleeves allow one holder to clamp round shank cutters of different diameters. It supports high-pressure through-coolant up to 120 bar, offering excellent chip evacuation and heat dissipation for stainless steel, titanium alloy and superalloy machining.

6.Durable & low maintenance, no damage to tool shanks

Uniform clamping pressure avoids indentations or scratches on carbide tool shanks. Integrated dirt grooves isolate oil and debris, maintaining long-term precision with low maintenance costs.