HGW Hydraulics has been a professional metric bulkhead fittings manufacturer in China since 1996. We specialize in DIN 2353 / ISO 8434 standard metric bulkhead adapters, bulkhead unions and cutting-ring bulkhead fittings in carbon steel and stainless steel (AISI 316Ti/1.4571). Reliable quality, competitive pricing and fast worldwide delivery for engineering, mining, marine and hydraulic systems.
As a leading metric bulkhead fittings manufacturer and exporter in China, HGW Hydraulics has been supplying high-quality DIN 2353 / ISO 8434 hydraulic bulkhead adapters to global engineering, mining, marine and off-shore industries since 1996.
Founded in 1996, HGW Hydraulics has developed into one of the most professional metric bulkhead fittings manufacturers in China. With over 28 years of focus on hydraulic tube fittings and adapters, we have earned the trust of customers worldwide.
We specialize in metric bulkhead fittings (bulkhead unions, straight bulkhead adapters, elbow bulkheads) in carbon steel and stainless steel AISI 316Ti/1.4571, strictly complying with DIN 2353, ISO 8434-1 and other international standards to ensure leak-free performance under high pressure.
In addition to standard series (L/S series, 4:1 safety factor), we offer complete customization services – special threads, lengths, sealing forms (O-ring, cutting-ring, flareless bite-type) and surface treatments (Cr3+ zinc plating, zinc-nickel, phosphating) to perfectly match your hydraulic system requirements.
With more than 1000 advanced CNC machines, 5 specialized production bases and a strict ISO 9001 & ISO 14001 quality system, we guarantee stable high quality, competitive factory-direct pricing and fast global delivery.
With 28 years of specialization in hydraulic fittings, HGW Hydraulics has become one of the most trusted metric bulkhead fittings manufacturers and exporters in China.
Since 1996, we have focused exclusively on hydraulic adapters and fittings, mastering metric bulkhead fittings production.
No middlemen. We ship metric bulkhead fittings directly from our 5 factories to Europe, USA, Australia, Middle East with full export documentation and fast lead times.
Custom threads, lengths, sealing types, materials and surface finishes – exactly match your drawings and requirements.
ISO 9001 & 14001 certified, 100 % pressure tested, material certificates (3.1), technical consultation and lifetime after-sales support.
High-quality DIN 2353 / ISO 8434 metric bulkhead fittings manufactured by HGW Hydraulics – reliable, leak-free performance for hydraulic systems worldwide.
DIN 2353 / ISO 8434 Standard
90° metric bulkhead elbow with cutting-ring or O-ring seal, available in L and S series. Ideal for tight-space installations in hydraulic systems requiring high-pressure reliability.
JIC 37° Flare Bulkhead
Straight JIC male to male bulkhead adapter, 37° flare connection. Perfect for crossing panels or walls in hydraulic and fluid power applications.
DIN 2353 74° Cone
Metric male 74° cone bulkhead adapter with adjustable nut. Suitable for high-pressure hydraulic lines requiring a reliable cone seal through panels.
| Model | 6C9 / 6D9 (90° Elbow) | 2700 MJ-MJ (JIC Bulkhead) | 6Q-LN (74° Cone Bulkhead) |
|---|---|---|---|
| Standard | DIN 2353 / ISO 8434 | JIC 37° Flare | DIN 2353 74° Cone |
| Material | Carbon Steel / Stainless 316Ti | Carbon Steel / Stainless 316Ti | Carbon Steel / Stainless 316Ti |
| Pressure Rating | L: 250 bar / S: 400 bar | Up to 350 bar | L: 250 bar / S: 400 bar |
| Thread Type | Metric 24° Cone | JIC 37° Flare | Metric 74° Cone |
| Sealing | Cutting-ring / O-ring | 37° Flare | 74° Cone |
| Sizes | 6mm – 42mm | 1/4" – 2" | 6mm – 42mm |
All metric bulkhead fittings are 100% pressure tested, supplied with 3.1 material certificates and shipped worldwide with full export documentation.
HGW metric bulkhead fittings are widely used in high-pressure hydraulic systems around the world, delivering leak-free connections in the most demanding environments.
Excavators, wheel loaders, cranes, telehandlers and agricultural equipment – our DIN metric bulkhead fittings ensure reliable hydraulic connections on chassis and booms.
Stainless steel 316Ti metric bulkhead fittings for deck machinery, steering systems, winches and offshore platforms – excellent corrosion resistance in salt-water environments.
Hydraulic power units, injection molding machines, steel mills and heavy presses rely on our L/S series bulkhead unions for safe panel penetration under extreme pressure.
Roof supports, drilling rigs and underground loaders use our robust metric bulkhead adapters to withstand vibration, high pressure and harsh underground conditions.
Pitch and yaw systems in wind turbines require stainless steel metric bulkhead fittings for long-term reliability in exposed offshore and onshore installations.
Global OEMs choose HGW metric bulkhead fittings for manifolds, valve blocks and custom hydraulic assemblies thanks to consistent quality, full traceability and fast delivery.
HGW Hydraulics has been providing professional OEM/ODM services for metric bulkhead fittings and hydraulic adapters to global brands and distributors since 1996.
Whether you need private-label bulkhead fittings, special dimensions, unique sealing forms or your own part numbers laser-etched, HGW offers complete OEM/ODM solutions with no MOQ restrictions for most items.
Our engineering team cooperates directly with your designers to develop custom metric bulkhead unions, 90° elbows, JIC/ORFS bulkheads, extended-length versions, Duplex/1.4462/Alloy materials or special surface treatments (zinc-nickel, Dacromet, KTL) that exactly match your drawings and specifications.
From prototype samples within 7–10 days to mass production with full PPAP, FAIR, EN10204-3.1 certificates and third-party inspections (SGS/BV/TÜV), we guarantee European-standard quality at factory-direct pricing.
Common questions from global buyers about HGW metric bulkhead fittings and our services.
We look forward to discussing your metric bulkhead fittings requirements, exploring long-term OEM/ODM partnership opportunities, or answering any technical and sourcing questions you may have as a trusted hydraulic fittings manufacturer since 1996.