Schüssler / Karl Schüssler Tool Holding Systems and Shrink Technology
Direct supply of high-precision CNC tool holding systems by Karl Schüssler GmbH & Co. KG (Germany): HAWK EYE® HPC collet chucks, thermal shrink fit chucks, tool-manic inductive units, and μ-manic balancing devices.
HAWK EYE® HPC Precision ER Collet Chucks
Schüssler HAWK EYE® HPC precision collet chucks position the collet deep inside the monolithic body to maximize radial rigidity. The clamping assembly delivers total runout accuracy under 3 µm. Hard reworked HSK shoulders ensure runout within 10 µm, five times tighter than DIN.
- Runout accuracy < 3 µm
- Collets ER11 to ER40
- HSK, SK, BT & PSC tapers
- Rigid deep-pocket HPC body
Standard 4.5° and Slim 3° Thermal Shrink Fit Chucks
Schüssler shrink fit chucks are manufactured in standard 4.5° geometry and ultra-slim 3° contours for deep mold cavity machining. The monolithic body guarantees maximum torque transmission with superior clamping force. Every toolholder is fine-balanced to G2.5 at 25,000 RPM.
- 4.5° standard & 3° slim
- Fine balanced G2.5 25k RPM
- Clamping range d=3 to 32 mm
- High thermal durability
Weldon and Whistle Notch Holders with Cool Tool Porting
Schüssler end mill holders for DIN 1835-B and DIN 1835-E side-lock shanks provide positive non-slip clamping. The Cool Tool design delivers internal coolant directly to cutting edges through dedicated precision channels. Holders feature robust anti-corrosion surface treatments.
- Cool Tool internal cooling
- DIN 1835-B & DIN 1835-E
- Bore diameters d=6 to 40 mm
- Corrosion-resistant coat
Face Mill and Shell Mill Arbors
Schüssler shell mill holders complying with DIN 6357 provide wide rigid contact faces for heavy-duty face milling cutters. Hardened drive keys transfer peak cutting torques without backlash. Holders are offered in extended gage lengths with optional internal through-coolant porting.
- DIN 6357 standard arbors
- Spigot diameters 16-60 mm
- Hardened drive tenons
- Through-coolant capability
tool-manic Inductive Shrink Fit Machines
Schüssler tool-manic S20 and S20C inductive shrinking units integrate patented dual-winding coils for targeted thermal distribution. Liquid contact cooling adapters dissipate heat gently without water touching the chuck. Units handle shank diameters from 3 to 32 mm up to 420 mm length.
- Patented dual-winding coil
- Models S20, S20C, S30
- Gentle contact liquid cooling
- Tool length up to 420 mm
μ-manic Dynamic Tool Balancing Systems
Schüssler μ-manic balancing systems perform single-plane static and two-plane dynamic balancing with measurement precision under 0.4 g·mm. Power-operated adapters ensure repeatable clamping of machine tapers. Precision balancing extends spindle lifecycle and improves part finish.
- Accuracy < 0.4 g·mm
- Static & dynamic balancing
- Power adapters HSK/BT/SK
- Spindle bearing protection
Shrink Fit Extensions and Short Precision Drill Chucks
Schüssler shrink fit extensions reach deep cavities and complex mold pockets without compromising spindle rigidity. The monolithic extension delivers high torque transmission with runout accuracy under 3 µm. Short drill chucks provide rigid tool-free bit clamping.
- Extension runout < 3 µm
- Through-coolant options
- Shank sizes d=12 to 32 mm
- High radial stiffness
Precision Pull Studs, Clamping Collets, and Tooling Accessories
Schüssler pull studs are manufactured to ISO 7388-3, JIS B 6339, Mazak, and Mori-Seiki specifications with through-hardened alloy steels. Precision ER collets maintain repeatability within 2 µm. Accessories include ball-bearing clamping nuts and torque wrenches.
- Pull studs ISO 7388-3 & JIS
- Collet repeatability 2 µm
- HAWK EYE ball-bearing nuts
- Coolant supply delivery tubes
Engineering Standards of Karl Schüssler Precision Tool Holding Systems
Karl Schüssler GmbH & Co. KG has been engineering and manufacturing high-precision toolholders for CNC machine tools in Bodelshausen, Germany since 1970.
Toolholders are manufactured from premium case-hardened alloy steels with finish-ground functional tapers. The hardened reworked HSK shoulder guarantees axial runout within 10 µm, five times tighter than standard DIN 69893 specifications.
Benefits of tool-manic Inductive Shrinking and μ-manic Balancing
The tool-manic inductive shrink-fit machine utilizes a patented coil with two independent windings to optimize temperature distribution across the chuck clamping zone.
Gentle contact liquid cooling prevents thermal distortion and preserves runout accuracy without water directly touching the toolholder. Integrating μ-manic balancing brings residual unbalance below 0.4 g·mm, maximizing high-speed spindle longevity.
Schüssler / Karl Schüssler and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Schüssler / Karl Schüssler and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.
