
Cutting Tools for Hydraulics & Fluid Power
The cavity-tool specialists for hydraulic manifolds.
Cartridge cavities, ports and custom manifold form tools — JIAYI grinds cavity tools for Sun Hydraulics-type, HydraForce-type, Parker Hannifin-type, Bosch Rexroth-type, Eaton Vickers-type and Danfoss-type cavities, plus SAE, ISO and BSPP port tools.
The challenge
A manifold block is a maze of precision cavities where every sealing surface has to be right the first time. Cartridge cavities have stepped profiles with tight diameter relationships; a form error becomes a leak path. Standard tools cover standard cavities — the moment the print deviates, you need a custom form tool ground to that exact cavity.
JIAYI solutions for hydraulics
Cavity Tools (7 series)
Form tools for Sun Hydraulics-type, HydraForce-type, Bucher Hydraulics-type, Bosch Rexroth-type, Parker Hannifin-type, Danfoss-type and Eaton Vickers-type cartridge cavities.
Port Tools (7 standards)
SAE J1926, ISO 1179, ISO 6149, AND 10050, AS 5202, BSPP-G and RPT-RFPT (Rosan-type) port machining tools.
Custom Manifold Form Tools
Multi-step form tools ground to your manifold print for one-pass cavity finishing.
Reamers & Drills
For pilot bores, cross-drillings and finishing passes in valve blocks.
Typical parts & materials
- Hydraulic manifold blockssteel, ductile iron, aluminum
- Cartridge valve cavitiesSun Hydraulics-type, HydraForce-type, Parker Hannifin-type, Bosch Rexroth-type, Eaton Vickers-type, Danfoss-type
- Ports & SAE/ISO/BSPP connectionsSAE J1926, ISO 1179, ISO 6149, BSPP-G
- Mobile and industrial hydraulic assemblies

Why JIAYI for hydraulics
- 01
Deepest catalog in our lineup: 7 cavity series + 7 port standards off the shelf.
- 02
Custom cavity tools ground to your exact cartridge print — including non-standard steps.
- 03
Form-ground profiles that finish sealing surfaces in one pass.
- 04
Drawing-based quoting with engineering review of cavity geometry.
Custom tooling in 3 steps
- 1
Send your cavity drawings
Cartridge cavity print or manifold drawing.
- 2
Engineering review
We verify the cavity profile against our series or design a custom form tool.
- 3
Quote & build
Priced proposal, then production to your print.
Have a cavity print that no catalog tool fits?
Send us the drawing. If it's a standard cavity-type, we'll match it. If not, we'll grind it.
Note: Third-party names (Sun Hydraulics, HydraForce, Parker Hannifin, Bosch Rexroth, Eaton Vickers, Danfoss, Rosan) are used for cavity-type identification only. JIAYI Tools is not affiliated with or endorsed by these manufacturers.