28000029 SCHUNK CELSIO thermal shrink chuck with HSK63A shank length 120mm for tool mounting with 20mm diameter clamping
(Incl. Tax: €269.01)
The CELSIO heat-shrink system delivers high performance through induction heating, creating an almost homogeneous connection between the toolholder and the cutting tool. The Cool Flow variant features integrated coolant channels adjustable with M3 screws to direct coolant precisely to the cutting edge, while the Dual Contact version ensures optimal interface compatibility for machines with both conical and flat surfaces. Designed for high-speed machining (up to 50,000 rpm) and suitable for HSS/HM tools, it guarantees precision ≤ 0.003 mm (ISO 69882-8), excellent surface finish, and repeatability. Its reinforced shank combines slim design with rigidity, making it ideal for milling, drilling, and HSC applications. Balanced for G2.5 at 25,000 rpm, it is compatible with CELSIO SVL extensions, ensuring maximum flexibility and productivity.

The CELSIO thermal shrink chuck is a precision tool designed for efficient tool mounting in various machining applications. It functions by utilizing an induction heating system that provides a secure and almost uniform connection between the toolholder and cutting tool. This mechanism is essential for maintaining accuracy and performance during high-speed operations.
The CELSIO system serves multiple purposes, including enhancing the cutting tool's performance through effective heat shrinking, ensuring consistent clamping, and minimizing vibrations during machining. The heat-shrink technology is particularly beneficial for achieving precise tool diameters and extending tool life, making it an essential component in modern machining processes.
This chuck is mounted on machines utilizing the HSK63A shank, measuring a length of 120 mm, which makes it compatible with a variety of precision machining centers and setups. Professionals in the metalworking industry, particularly those involved in milling and drilling operations, routinely utilize this tool.
Applications of the CELSIO thermal shrink chuck extend across diverse sectors including automotive, aerospace, medical device manufacturing, and general engineering. Its versatility allows it to be employed in any high-speed machining environment, which often requires precision and optimal tool performance.
In terms of technical specifications, the CELSIO chuck is designed for high-speed machining, capable of operating at speeds up to 50,000 rpm. It is suitable for both HSS (High-Speed Steel) and HM (Hard Metal) tools, making it adaptable to various machining needs. The system ensures a precision of ≤ 0.003 mm, according to ISO standards, contributing to excellent surface finishes and high repeatability in results.
To enhance cooling capabilities during machining, the Cool Flow variant of the chuck includes integrated coolant channels that can be adjusted with M3 screws to focus the coolant directly on the cutting edge. Additionally, the dual contact feature ensures compatibility with both conical and flat machine interfaces, broadening its range of applicability. The chuck's reinforced shank exhibits a slim design without compromising rigidity, making it a reliable choice for high-speed cutting technologies.
Below are technical data presented in tabular format:
| Specification | Details |
|---|---|
| Model | 28000029 CELSIO Thermal Shrink Chuck |
| Shank Type | HSK63A |
| Length | 120 mm |
| Clamping Diameter | 20 mm |
| Maximum Speed | 50,000 rpm |
| Precision | ≤ 0.003 mm (ISO 69882-8) |
| Balancing | G2.5 at 25,000 rpm |
| Cooling Feature | Integrated adjustable coolant channels |
| Compatibility | CELSIO SVL extensions |
The following formulas may be applied in the context of this product to calculate parameters as needed in various scenarios, such as determining cutting speed or tool life based on RPM and diameter parameters:
1. Cutting Speed (V) = (π × Diameter × RPM) / 1000
2. Tool Life = Constant / Cutting Speed^n (where n is determined by the tool material and workpiece material)
3. Feed Rate (F) = RPM × Chip Load × Number of Teeth
This thermal shrink chuck stands out for its innovative approach to tool mounting, maintaining the balance of functionality, precision, and adaptability essential in high-performance machining applications.
- Brand:
- SCHUNK
- Typology:
- Shrink fit technolgy
- Length "L":
- 120mm
- Size:
- 20mm
- Shank Type:
- HSK63A
- Diameter "d2":
- 3mm
- Diameter "D":
- 42mm
- Length "L1":
- 94mm
- Dimension "F":
- M16x1
- Dimension "H":
- 10mm