Hydraulic manifold blocks serve as the centralized control hub in fluid power circuits, routing oil between pumps, valves, and actuators while eliminating complex external piping. Built to exact OEM specifications, our manifolds minimize pressure drops, prevent external leakage, and streamline hydraulic system assembly for industrial and mobile equipment.
Key Features
Optimized Internal Flow Paths: Straight internal cross-drilled channels with minimal 90-degree turns to reduce turbulence, fluid friction, and pressure loss.
Precision Cavity Machining: Form tools matched directly to standard cartridge valve profiles (Sun Hydraulics, HydraForce, Vickers/Eaton) to ensure zero seat leakage under high pressure.
Cross-Drilled Intersections: Deburred and plugged with high-pressure threaded or sealing ball plugs, pressure-tested to prevent internal bypass.
Mounting Integrity: Precision-machined face pads with o-ring grooves dimensioned to ISO and SAE standards.
Technical Specifications
|
Parameter |
Standard / Specification Range |
|
Operating Pressure |
Up to 350 bar (5,000 PSI) standard; high-pressure variants up to 420 bar |
|
Port Threads |
SAE (UN/UNF), BSPP (G-thread), NPT, Metric (ISO 6149) |
|
Valve Cavities |
SAE 08-2, 10-2, 12-2, 16-2; custom cavity profiles per customer drawing |
|
Dimensional Tolerance |
±0.01 mm on critical cavity and port locations |
|
Surface Roughness |
Ra ≤ 0.8 μm on sealing faces |
|
Standard Finishes |
Clear/Color Anodized (Aluminum), Zinc Plated with Cr3+ passivation (96h NSS), Black Oxide (Steel) |
Materials & Machining Processes
Material Selection
Aluminum 6061-T6 / 2014-T6: High strength-to-weight ratio; ideal for mobile machinery and medium-pressure systems (≤ 210 bar).
Ductile Iron (QT500-7 / GGG50): Excellent fatigue resistance and high pressure capacity for heavy industrial applications.
Alloy Steel (AISI 4140 / 4340): Heat-treated/quenched and tempered; deployed in high-pressure (>315 bar) and high-cycle industrial power units.
Machining Operations
CNC Milling & Turning: Multi-axis vertical and horizontal machining centers maintain exact perpendicularity between mounting faces and ports.
Deep-Hole Drilling: Gun drilling for long internal galleries, preventing drill drift over deep spans.
Deburring & Ultrasonic Cleaning: Deburred mechanically, followed by ultrasonic washing to eliminate metal chips, burrs, and cutting fluid residue before plugging.
Applications
Hydraulic Power Units (HPUs)
Integrated valve stands for industrial presses and manufacturing lines.
Mobile Machinery
Steering and implement control blocks for excavators, loaders, and agricultural tractors.
Material Handling
Manifolds for hydraulic lift tables, cranes, and automated storage systems.
Offshore & Marine
Corrosion-resistant blocks for deck machinery and winches.
Customization & OEM Services
Build-to-Print Manufacturing: Production executed strictly according to customer engineering drawings and 3D models.
Engineering Support: DFM (Design for Manufacturability) review on internal gallery layouts and cavity spacing to avoid wall breakthrough.
Prototyping: Rapid sample turnaround for physical fit and functional testing prior to volume production.
Batch Flexibility: Scalable manufacturing from low-volume custom runs to scheduled high-volume OEM releases.
Quality Control & Inspection
Dimensional Verification
CMM (Coordinate Measuring Machine) inspection for hole locations, depth, and cavity geometry.
Thread & Cavity Gauging
Go/No-Go threaded plug gauges and dedicated cavity form gauges used on 100% of critical lots.
Pressure Testing
Hydrostatic proof testing performed at 1.5× rated working pressure upon request.
Documentation
Material Test Reports (MTRs / EN 10204 3.1) and dimensional inspection sheets provided with shipments.
Packaging & Shipping
Port Protection: Plastic threaded plugs or protective caps installed on all ports to block moisture and debris.
Corrosion Prevention: Vapor Corrosion Inhibitor (VCI) bags and anti-rust oil application for steel and iron blocks.
Transit Security: Custom wood crates or heavy-duty corrugated cartons with dense foam blocking to prevent surface impact during international freight.
FAQ
Q: What is the minimum order quantity (MOQ)?
A: Standard blocks or repeat orders start at 10 pieces. Custom prototype runs are available from 1 piece based on drawing review.
Q: What CAD drawing formats do you accept?
A: We accept neutral and native formats including STEP, IGES, SolidWorks (.sldprt), CATIA, Inventor, and PDF engineering drawings with geometric dimensioning and tolerancing (GD&T).
Q: What is the standard lead time?
A: Prototypes typically require 2 to 3 weeks. Production batch lead times range from 4 to 6 weeks depending on material availability and post-processing requirements.
Q: How do you ensure internal cleanliness?
A: All manifolds undergo mechanical deburring, high-pressure flushing, ultrasonic cleaning, and immediate port capping to meet ISO 4406 cleanliness standards.
Q: Can you supply manifolds with cartridge valves pre-installed?
A: Yes. We provide complete sub-assemblies including customer-specified or source-supplied valves, tested for seal integrity.
Q: What surface treatments do you offer for corrosive environments?
A: Options include heavy-layer zinc-nickel plating (500+ hours neutral salt spray resistance) and hard anodizing for aluminum.
Request a Quote (RFQ)
To provide an accurate technical and commercial proposal, please submit the following details via email or our inquiry form:
Engineering Drawing: 2D drawing with tolerances and 3D CAD model (STEP / SolidWorks preferred).
Material Specification: Grade requirement (e.g., Al 6061-T6, AISI 4140).
Quantity: Annual volume and per-batch release quantities.
Surface Treatment: Plating, anodizing, or raw finish.
Testing Requirements: Hydrostatic testing, cleanliness certification, or material certs.
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