Cermet Series · Finishing
The T-18A cavity tool is a specialized reamer for cartridge valve manifolds. It is a high-precision cutting tool designed for machining cavities in hydraulic cartridge valve manifolds, primarily used to enhance dimensional accuracy, geometric precision, and surface finish for multi-diameter bores. Used for the precision machining of cartridge cavities in Sun Hydraulics hydraulic valve blocks, including the reaming of pilot bores, fluid passages, and valve seat bores. It ensures high dimensional accuracy, meeting the hydraulic system's stringent requirements for sealing and functionality. Suitable for various applications: A single tool body accommodates different diameters, enabling the efficient, precision reaming of multiple hole sizes. Thanks to the brazed cermet cutting inserts, wear is minimized, resulting in an extended service life. Cavity tool types: HSS (Type A) / Morse taper shank (Type B) / Carbide (Type C) / Indexable insert (Type D) / Brazed tip (Type E) / Brazed cermet (Type R) / Brazed PCD (Type F).
| Part number | T-18A D8102 |
|---|---|
| Type | Brazed Cermet R-Type – Finishing |
| Product Name | Cavity Reamer / Cavity tool |
| OEM / ODM | Made to your samples or drawings |
| Model | T-18A FT |
| Packaging (mm) | 60 × 200L |
| Application Brand | SUN Hydraulics |
| Guide Diameter D | Ø41.300mm /1.626 |
| Shank Diameter d | Ø25.0mm |
| Overall Length L | 160.0mm |
| Thread Tap | M48 × 2.0-6H TAP |
| Material | Cermet inserts |
| Coolant channel | Yes |
| MOQ | 2 pcs |
| Lead time | 1–4 weeks |
| Origin | Shenzhen, China |
Design details engineered for accuracy, tool life and process stability.
Thanks to their excellent wear and heat resistance, welded cermet reamers offer a longer service life than traditional tools, reducing the frequency and cost of replacements.
Cermet materials possess extremely high hardness and wear resistance, enabling them to maintain excellent cutting performance in high-stress and high-temperature environments.
Cermets retain their physical and chemical properties at high temperatures, making them suitable for machining superalloys and other difficult-to-machine materials.
The T-18A D8102 brazed cermet hollow-body tool maintains stable cutting performance over extended periods thanks to its precision design and high-performance materials, thereby enhancing machining accuracy and extending tool life.
The T-18A D8102 cavity conforms to Sun Hydraulics cartridge valve standards—applicable to control valves, distributor valves, relief valves, directional valves, and more—and is suitable for valve bodies made of heat-treated alloy steel with a hardness exceeding HRC 35.
Compared to solid carbide cavity tools, this type offers superior wear resistance and supports higher speeds and feed rates; the resulting hole surface roughness typically reaches Ra 0.4 or lower, meeting the stringent sealing requirements of hydraulic components.
Typical industries and parts machined with this tool.
Used in the machining of various valve bodies and valve seats to ensure smooth fluid flow and sealing performance.
Used for machining cartridge valve cavities in hydraulic valve blocks, ensuring dimensional accuracy and surface finish.
Used in the machining of components for hydraulic control systems in engines and transmissions.
In the aerospace sector, used for machining high-precision components for hydraulic and pneumatic control systems.
Tell us the cartridge cavity standard and your valve-block material. We supply roughing and finishing cavity tools in standard sizes or made to your samples or drawings.