Hengshui Minai Rubber & Plastic Technology Co., Ltd. is one of the leading manufacturers and suppliers of quick coupling metal hose in China. We are committed to providing high quality customized service and OEM/ODM service to global clients. Please feel free to wholesale bulk durable quick coupling metal hose made in China here from our factory. If you have any enquiry about pricelist, please feel free to email us.
Products Description
The main body of this series of quick coupling metal hose adopts 304 or 316L stainless steel bellows, and the outer stainless steel braided mesh improves pressure resistance and anti-fatigue performance. Standard quick couplings are assembled at one or both ends. The couplings include straight quick plug and self-locking quick connection structures with plug-in self-locking and anti-drop function. Built-in high and low temperature resistant gaskets prevent medium leakage. The product can bend freely at multiple angles, resist fatigue from repeated bending, and withstand corrosion from moisture, oil products, weak acids and alkalis with a wide applicable temperature range. It can be used for conveying gas, cooling water, heat transfer oil, low-pressure steam and other media. The hose length, nominal diameter, coupling specifications and sealing materials can be adjusted. Structural schemes can be optimized according to medium pressure and service environment. All products pass air tightness and water pressure tests before delivery, suitable for flexible pipeline systems requiring frequent connection and mobile operation.
Product Advantages
Mobile Test Equipment
Fluid pipelines for testing instruments and test benches to facilitate equipment shifting and quick connection.
Hydraulic and Pneumatic Systems
Flexible connection for air sources and cooling oil circuits to realize rapid disconnection for pipeline maintenance.


New Energy and Energy Storage Equipment
Cooling circulation pipelines for quick separation during equipment assembly and maintenance.
Mold and Hot Runner Equipment
Conveying hoses for heat transfer oil and cooling water for quick disassembly during mold replacement.
General Machinery Tooling Fixtures
Fluid conveying pipelines for assembly line tooling and mobile workstations.
HVAC and Small Boiler Equipment
Flexible connection for low-pressure hot water and steam for easy maintenance and disassembly.

Company Strength
1.Material Selection: 304 / 316L stainless steel optional for bellows and mesh sleeves; FKM, NBR, silicone rubber are available for seals to adapt to different media.
3.Coupling Solutions: Various specifications of self-locking quick couplings are optional. Combinations such as quick couplings on both ends, or quick coupling at one end and thread at the other end are supported.
3.Size Customization: The total hose length, nominal diameter and bending radius can be freely set to meet limited installation space requirements.
4.Working Condition Optimization: Wall thickness and sealing materials can be adjusted for high temperature and corrosive media. Anti-twist sleeves and protective springs can be added.
5.Delivery Arrangement: Fast supply for standard specifications; non-standard structures are produced after drawing confirmation with short sampling cycle.
6.Quality Assurance: Air tightness pressure test for each piece, full inspection of dimension and appearance. Third-party inspection support is available.
Product Q&A
Q: Can quick coupling metal hoses be used for high-pressure working conditions?
A: Yes. Adopting thickened hose body and reinforced sealing structure, the hose stably adapts to conventional industrial high-pressure transmission of gas and hydraulic oil with stable pressure resistance. Long-term service under ultra-high pressure and overloaded conditions is prohibited. Standard installation ensures long-term leak-free and fault-free operation.
Q: Will repeated plugging cause loosening and leakage?
A: No. The industrial self-locking coupling features high-precision occlusion and firm locking, matched with high-quality aging-resistant seals to resist repeated plugging wear. Under standard use, it maintains tight sealing for a long time without loosening, pressure relief or leakage, suitable for frequent disassembly scenarios.
Q: What conveying media is the quick coupling metal hose suitable for?
A: It supports a wide range of media, including compressed air, high-pressure gas, hydraulic oil, lubricating oil, clean water, low-temperature steam and weak corrosive fluids, widely used in pneumatic, hydraulic and general fluid transmission systems. Custom models are available for special strong acid and alkali corrosive media.



