Custom Manifold Block

Overview

ORROMFG manufactures custom hydraulic manifold blocks for fluid power systems, valve integration, and hydraulic control circuits. Our CNC machined manifold blocks are produced from solid billet material, with precision-drilled internal flow passages, machined mounting interfaces, and tapped port connections to customer specifications. Each manifold is designed and manufactured to accommodate cartridge valves, directional control valves, and pressure relief valves in a compact, leak-free package.

We machine manifold blocks in aluminum 6061-T6 for weight-sensitive mobile applications, and in carbon steel or stainless steel for high-pressure industrial and offshore systems. Our multi-axis CNC machining centers handle blocks of varying sizes, from compact sub-plate manifolds to large multi-station valve banks. All internal passages are deburred, cleaned, and pressure-tested to ensure reliable operation.

These manifold blocks are widely used in hydraulic power units, mobile equipment, injection molding machines, and offshore control systems. For related fluid handling components, explore our Precision Pump Casing, or learn more about our CNC Machining capabilities.

Key Features

• Complex internal passages — Precision drilling of intersecting flow channels with accurate positioning
• Multi-valve integration — Machined cavities for cartridge, directional, and pressure control valves
• Pressure-tested — Every manifold hydrostatically tested to verify passage integrity
• Material versatility — Aluminum for mobile applications, steel for high-pressure industrial systems
• Complete machining — All mounting interfaces, port threads, and sealing surfaces finished in one setup

Materials

• Aluminum 6061-T6 — Lightweight manifolds for mobile and aerospace hydraulic systems
• Aluminum 7075-T6 — High-strength aluminum manifolds for demanding mobile equipment
• Carbon Steel (AISI 1045 / 4140) — High-pressure manifolds for industrial hydraulic systems
• 304 / 316 Stainless Steel — Corrosion-resistant manifolds for chemical and offshore applications
• Ductile Iron (GGG40) — Cost-effective manifolds for medium-pressure fluid control

Manufacturing Process

1. Billet preparation — Cutting of certified aluminum or steel billets to rough block dimensions
2. CNC milling — Multi-axis milling of external profiles, mounting pads, and valve cavities
3. Deep-hole drilling — Precision drilling of internal flow passages with intersecting channels
4. Tapping and threading — Machining of port threads, mounting threads, and valve cavity threads
5. Deburring and cleaning — Removal of internal burrs and flushing of all passages
6. Pressure testing — Hydrostatic testing at 1.5x working pressure to verify passage integrity
7. Surface treatment — Anodizing, plating, or painting per customer specification

For compatible valve body components, see our Valve Body Machined.