Air/Water Hose (Wrapped Surface)

300 PSI Air Hose Key Specs

What Is a 300 PSI Air Water Hose?

A 300 PSI air water hose is a heavy-duty synthetic rubber hose designed for safely conveying compressed air, inert gas, and water in industrial environments. Unlike lightweight PVC hoses, this industrial rubber hose features a wrapped surface, textile braiding reinforcement, and a 4:1 safety factor. It remains flexible from -40°C to +70°C, making it suitable for year-round outdoor use in mining, construction, and shipbuilding.

This heavy duty air hose is widely used as a compressed air line hose in industrial pneumatic systems. As a professional rubber air hose manufacturer and supplier in China, we supply this product to distributors, wholesalers, and exporters worldwide.

Product Overview

An air/water hose (wrapped surface) is a standard industrial product built from NR & SBR synthetic rubber. The tube is black, and the reinforcement uses 1-ply or 2-ply high tensile polyester thread braiding combined with multi-ply high tensile fabric. The wrapped surface cover is available in black, yellow, or red. This abrasion resistant air hose is specifically designed for dragging applications on concrete, steel, or rock.

This industrial 300 PSI air water hose delivers a working pressure of 20 bar (300 PSI) and a bursting pressure of 60 bar (900 PSI) across all diameters from 3/16″ to 4″. Core advantages include extreme abrasion resistance from the wrapped surface, excellent low-temperature flexibility, ozone resistance, and full compatibility with crimped fittings, reusable fittings, and hose assembly components.

Primary applications include mining pneumatic tools, construction site air compressors, shipbuilding deck washing, steel mill cooling lines, and engineering water transfer. This compressed air hose solves critical pain points: frequent bursting from pressure spikes, premature cracking, stiffness in cold weather, and short service life in abrasive environments. Quality assurance includes 100% factory pressure testing, traceable batch numbers, and compliance with international standard requirements.

Key Features

• Consistent 300 PSI Working Pressure: 20 bar across all diameters from 3/16″ to 4″
• Wrapped Surface Durability: 2-3x better abrasion resistance than smooth cover hoses
• Extreme Temperature Flexibility: Remains flexible at -40°C for winter operation
• Color-Coded Safety: Black, yellow, and red covers for easy identification
• Long Continuous Lengths: 60m and 100m standard to reduce couplings
• Complete System Compatibility: Works with fittings, adapters, flanges, protective sleeves, and guards

Technical Specifications Table

Below is the detailed technical specification of our industrial 300 PSI air water hose, covering all sizes from 3/16″ to 4″.

Download PDF: Request the complete pdf specification including chemical compatibility data and dimensional drawings.

Structure and Materials

• Tube (Inner Layer): NR & SBR synthetic rubber, black color. Smooth bore minimizes flow resistance for air and water.
• Reinforcement: 1-ply or 2-ply high tensile polyester thread braiding combined with multi-ply high tensile fabric. This hybrid construction delivers 300 PSI while maintaining flexibility.
• Cover (Outer Layer): NR & SBR synthetic rubber with wrapped surface finish. Available in black, yellow, or red. The wrapped surface significantly increases abrasion resistance for dragging applications.

Rubber Air Hose vs PVC Air Hose

Verdict: For mining, construction, and shipbuilding, a flexible rubber air hose with wrapped surface is the only reliable choice.

Applications: Where to Use This Abrasion Resistant Air Hose

Primary Industries

• Mining: Pneumatic tools, water dust suppression, slurry line air injection
• Construction: Jackhammers, concrete pumps, site air compressors, water transfer
• Shipbuilding: Shipyard air tools, deck washing, inert gas blanketing
• Steel Production: Cooling water lines, mill air systems, dust control

What Size Air Hose Do I Need?

Real Application Example

In a mining project in Western Australia, our 3/4″ 300 PSI air water hose was used for pneumatic drilling and dust suppression. The wrapped surface withstood daily dragging on granite rock faces for 14 months without cover failure. Operating temperatures ranged from near-freezing at night to 45°C during the day. This construction air hose heavy duty performance directly reduced hose replacement costs by 60% compared to the previous smooth cover hose.

What Is the Best Hose for Mining Air Tools?

For mining applications (jackleg drills, stopers, pneumatic scaling bars), the best hose is a 300 PSI rubber air hose with wrapped surface and 1/2″ to 3/4″ ID. The wrapped surface resists dragging on rock faces, and the rubber compound remains flexible in cold underground environments. This mining air hose should also have a yellow or red cover for high visibility in low-light conditions.

How Long Does an Industrial Air Hose Last?

With proper use and storage, a quality industrial air hose (like this wrapped surface NR/SBR hose) lasts 3-5 years in heavy daily use and 7-10 years in intermittent use. Factors that reduce life include UV exposure (store indoors), dragging on sharp edges (use guards), over-pressurization, and chemical exposure.

How to Choose a Reliable Air Hose Supplier

When selecting an air hose supplier or rubber hose manufacturer, consider these five criteria:

1. Certification: Does the supplier have ISO 9001 and product-specific testing?
2. Testing Capability: Can they provide burst test reports, pulse test data, and material certifications?
3. Export Experience: Do they understand international shipping, documentation, and customs clearance?
4. OEM Ability: Can they offer OEM ODM services for custom branding and packaging?
5. Complete Solution: Do they supply fittings, adapters, protective sleeves, and guards as a complete system?

As a factory, producer, and exporter based in China, we meet all five criteria. We are also a distributor and wholesaler offering bulk pricing with volume discount schedules.

Technical Standards and Certifications

• Working Pressure: 20 bar (300 PSI) with 4:1 safety factor
• Temperature Range: -40°C to +70°C (-104°F to +158°F)
• Manufacturing Standard: Compliant with international rubber hose specifications
• Quality System: ISO 9001 certified processes (documentation available)

Why Choose Us as Your Industrial Rubber Hose Manufacturer

As a professional rubber hose manufacturer and factory in china, we provide end-to-end Service, Support, and a complete Solution. We are your single Source for Supply—whether you need a local distributor, a volume wholesaler, or an exporter. We offer OEM ODM service for custom branding and packaging.

What makes us different:

• Factory direct price with bulk discount schedules for distributors and contractors
• Complete system: Hoses + crimped fittings + reusable fittings + adapters + flanges + protective sleeves + guards
• Technical documentation: Detailed pdf specification and test reports
• Quality control: 100% factory pressure testing and traceable batch numbers
• Global export experience: We ship to North America, Europe, Australia, South America, Africa, and Southeast Asia
• Supply chain reliability: As both a producer and supplier, we control lead times and inventory

Frequently Asked Questions (FAQ)

Q1: Can I buy this air hose in bulk with wholesale pricing?

Yes. We are a wholesaler, distributor, and factory. Contact us for bulk quantity price and cost estimates.

Q2: What is the difference between wrapped surface and smooth surface?

The wrapped surface provides significantly higher abrasion resistance. It is manufactured by wrapping the cover with nylon tape before vulcanization, which compacts the rubber and increases density.

Q3: Do you supply crimped fittings for this hose?

Yes. We supply crimped fittings, reusable fittings, adapters, and flanges as complete hose assembly solutions.

Q4: What is the minimum order quantity (MOQ) for OEM ODM?

We offer flexible OEM ODM options. Contact our sales team with your requirements.

Q5: Do you have a PDF specification sheet?

Yes. Request the pdf specification including all technical data, dimensions, and chemical compatibility.

Q6: Are you an exporter? Do you ship internationally?

Yes. We are an exporter with experience shipping worldwide.

Q7: What protective accessories do you recommend?

For high-abrasion areas: protective sleeves. For kink prevention: spiral guards. For impact protection: rubber guards.

Q8: What is the difference between this hose and a wire braided hose or wire spiral hose?

This air water hose is designed for 300 PSI pneumatic and water applications. A Wire Braided Hose or Wire Spiral Hose is designed for much higher pressures (3,000-10,000 PSI) for hydraulic systems. Do not substitute one for the other.

Looking for a reliable industrial air hose supplier or rubber air hose manufacturer in China?

Ready to buy a heavy duty air hose for your mining or construction project? As a trusted china manufacturer, supplier, and exporter, we deliver quality, support, and competitive price.

Get your solution today:

• Request bulk price and cost estimates
• Ask about discount schedules for distributors and contractors
• Download the pdf specification sheet
• Discuss OEM ODM custom branding
• Order complete hose assembly with crimped fittings or reusable fittings
• Add protective sleeves and guards to your shipment

Contact our engineering sales team now for a solution tailored to your application.