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Product Name | Sanheng 1CM-WD / 1DM-WD Hydraulic Metric Male Compression Adapter with Captive Seal |
Code | 1CM-WD 1DM-WD |
Material & Surface Treatment | Carbon steel (zinc plated Cr3+); Stainless steel (passivation) |
Application | Pipe connection（oil,water,gas） |
Technology | CNC machining & Forged |
Package | All adapters equipped with thread protective end caps, inside plastic bags, and then inside standard blank carton boxes. |
Our main products | Threaded hydraulic hose fittings and pipe adapters, sucn as Metric , BSP, BSPT, NPT , JIC , ORFS, SAE thread. |
The 1CM-WD (light series) and 1DM-WD (heavy series) metric male compression adapters are professionally engineered as critical connection components for DIN standard hydraulic fluid systems. Adopting 24° bite-type tube fitting design with integrated captive ED sealing mechanism, it achieves stable, zero-leakage pipeline connection while effectively absorbing mechanical vibration and pressure spikes in heavy-duty working conditions. Made of integral forging blank with CNC precision machining, the adapter features dense internal structure, smooth thread engagement and excellent anti-galling performance. Suitable for conveying hydraulic oil, industrial water and compressed gas, it eliminates micro-leakage risks, reduces maintenance downtime, and ensures long-term reliable operation of high-pressure fluid networks.
Manufactured in full compliance with DIN 2353, ISO 8434-1 and DIN 3852-1 international industry standards, all dimensions and thread tolerances are strictly controlled. The product passes 96-hour professional salt spray testing with reliable corrosion resistance, covering 16-63 MPa working pressure range for light and heavy series. Complete dimensional drawings, thread parameters and pressure rating data can be provided according to customer model requirements, supporting direct replacement and matching of old equipment parts.
Dual Sealing Guarantee: Integrated captive ED seal combined with 24° bite-type compression structure, forms double leak-proof protection, maintains stable sealing performance under pressure fluctuations and vibration.
Excellent Anti-Vibration Performance: Robust forged body absorbs high-frequency mechanical vibration, effectively prevents thread loosening and seal failure during long-term continuous operation of heavy equipment.
Smooth Anti-Galling Thread: CNC precision machined threads ensure frictionless engagement during assembly, reduces technician labor intensity and avoids cross-threading damage.
Compact Space-Saving Design: Low-profile optimized geometry adapts to tight installation space in confined equipment compartments and dense hydraulic manifolds, without sacrificing flow capacity.
Wide Media Adaptability: Chemically stable sealing material and metal body are compatible with synthetic hydraulic oil, industrial water, compressed gas and other common industrial media.
Carbon Steel (Cr3+ Zinc Plated)
Adopts eco-friendly trivalent chromium zinc plating process, with excellent rust and oxidation resistance, high tensile strength and cost performance, ideal for conventional hydraulic systems, engineering machinery and general industrial working conditions.
Stainless Steel (Passivation)
Through rigorous professional passivation treatment, it forms a dense protective oxide layer, with outstanding acid, alkali and salt spray corrosion resistance, perfectly suitable for petrochemical, marine and other highly corrosive harsh working environments.
This metric male compression adapter is widely used in high-pressure hydraulic and fluid pipeline connection scenarios in various core industrial fields:
Construction & Engineering Machinery: Hydraulic pipeline connection for excavators, loaders, road rollers and other mobile heavy equipment, adapting to high-vibration field working conditions.
Industrial Manufacturing: Pipeline assembly for automated production lines, hydraulic stations, compressed air and cooling water circulation systems, ensuring stable continuous operation of factory equipment.
Metallurgical & Heavy Industry: Hydraulic system piping for metallurgical equipment, forging machinery and heavy machine tools, withstanding long-term high-pressure and impact load operation.
Petrochemical & Marine Engineering: Medium transmission pipelines for oil and gas, chemical processing systems, ship equipment and offshore platforms, with corrosion-resistant material options for harsh environments.
The adapter body is formed by high-tonnage integral hot forging to optimize metal grain structure, ensuring dense internal matrix and excellent pressure resistance. The 24° cone sealing surface and metric threads are processed by multi-axis CNC lathes with micron-level precision. Each batch undergoes strict thread gauge inspection, dimensional verification and pressure sealing test, fully complying with international standard requirements, ensuring stable and reliable long-term operation.
To assist your engineering and procurement teams in making informed decisions, we have compiled detailed answers to the most common inquiries regarding our metric compression adapters and manufacturing capabilities.
The captive seal, or ED ring, is specifically designed to sit within a precisely machined groove, preventing extrusion under high-pressure spikes. Unlike standard O-rings that may deform, twist, or roll during installation, the captive seal maintains a consistent, flat contact area. This ensures a highly reliable, long-lasting hermetic seal even in environments subject to severe mechanical vibrations and pressure fluctuations.
While the 1CM-WD and 1DM-WD models feature specific metric threads compliant with DIN 2353 and ISO 8434-1, we manufacture a comprehensive range of transition joints. Our engineering team can provide customized solutions to seamlessly bridge metric systems with BSP, BSPT, NPT, JIC, ORFS, or SAE threaded components, ensuring total system compatibility.
Trivalent chromium plating offers exceptional anodic protection against oxidation and rust, significantly extending the lifespan of carbon steel components in harsh environments. Furthermore, unlike older hexavalent chromium processes, Cr3+ is fully compliant with modern global environmental directives, ensuring your final assemblies meet strict ecological and safety regulations.
For standard bulk orders of conventional products, our production cycle is approximately 30 days. However, for custom-engineered components requiring new technical drawings, specialized tooling, and CNC programming, the timeline may be slightly extended based on complexity. We maintain a robust inventory of standard products to support immediate, small-scale shipments while custom orders are being processed.
Absolutely. We operate as a professional manufacturer with rich experience in the design and production of hydraulic products. Upon request, we can supply comprehensive material test reports, quality inspection documents, and compliance certificates, ensuring full traceability and peace of mind for your most critical engineering and procurement projects.
