Air Hose Smooth Surface 300PSI

Product Overview

Air Hose Smooth Surface 300PSI is a flexible, wire braided rubber air hose designed for workshop and industrial compressed air systems. Rated at 300 PSI (20 bar) continuous working pressure and 900 PSI (60 bar) burst pressure (4:1 safety factor), this hose operates reliably from -30°C to +80°C. The smooth surface cover – made of rubber or TPR – resists oil, abrasion, and dirt buildup, making it easy to clean and maintain. Ideal for pneumatic tools, spray painting lines, and compressed air distribution. PDF datasheet and bulk factory pricing available upon request.

Key Features & Advantages

• Smooth Surface Cover: Easy to wipe clean; reduces drag when pulling through tight spaces.
• 300 PSI Working Pressure / 900 PSI Burst: Safe for most industrial air systems.
• Wire Braided Reinforcement: 1 or 2 plies of polyester braid for flexibility and pressure containment.
• Wide Temperature Range: -30°C to +80°C (-22°F to +176°F).
• Oil-Resistant Options: Rubber or TPR/NBR/PVC compounds available.
• Cost-Effective: More affordable than spiral wire hoses for 300 PSI applications.
• Custom Assembly: Available with crimped fittings, reusable fittings, adapters, flanges, protective sleeves, and guards.

Technical Specifications Table

Working Pressure = 20 bar (300 PSI) | Burst Pressure = 60 bar (900 PSI) | Safety Factor = 4:1

Structure & Materials

• Inner Tube: Smooth synthetic rubber (or NBR/PVC). Oil-resistant and non-permeable.
• Reinforcement: 1 or 2 plies of high-tensile polyester thread braiding – a wire braided hose construction optimized for 300 PSI flexibility.
• Outer Cover: Smooth rubber or TPR. Resists oil, abrasion, ozone, and weathering.

Braided vs. Spiral Hose – When to Choose Which?

For 300 PSI air and water applications, a wire braided hose (polyester braid) offers better flexibility and bend radius than a wire spiral hose. Spiral hoses are designed for much higher pressures (4,000 PSI+) and high-impulse hydraulic systems. Our Air Hose Smooth Surface 300PSI uses a textile braid – lighter, more flexible, and more cost-effective for pneumatic service.

How to Calculate Air Hose Diameter for Your Tool

Selecting the correct inside diameter (ID) ensures optimal tool performance. Use this formula:

Q = A × v = (π × d² / 4) × v

Where:

• Q = Air flow (CFM or m³/min)
• d = Hose inside diameter (inches or mm)
• v = Air velocity (ft/min or m/s)

Practical guide:

• 3/8″ (9.5mm) ID: Suitable for light-duty tools (5–8 CFM) up to 30 ft line length
• 1/2″ (12.7mm) ID: Most common size for workshops (10–15 CFM tools)
• 3/4″ (19.1mm) ID: For main distribution lines or high-consumption tools (20–30 CFM)
• 1″ (25.4mm) ID: For long runs (over 150 ft) or multiple simultaneous users

Comparison: Smooth Surface vs. Ribbed Air Hose

Applications

• Workshops & Garages: Pneumatic tools (impact wrenches, nail guns, spray guns). Also ideal as air hose for spray painting 300psi applications.
• Construction Sites: Portable air compressors, jackhammers.
• Manufacturing: Assembly lines, blow-off stations, robotic end effectors.
• Agriculture: Pneumatic seeders, grain handling, sprayers.
• Mining: Ventilation lines (temporary).
• Marine: Deck air supply for cleaning and tools.

Hose Assembly & Fittings Options

We provide complete hose assembly services:

• Crimped fittings air hose assembly: Permanent, highest reliability for high-vibration areas.
• Reusable fittings: Field-attachable, ideal for repairs or custom lengths.
• Adapters and flanges: Convert NPT, BSP, JIC, or flange connections.
• Protective sleeves and guards: Extend hose life in high-wear areas.

Where to Buy 300PSI Air Hose – Factory vs. Distributor

Recommendation: For bulk orders, OEM projects, or technical applications, source directly from the factory.

Certifications & Testing

• Pressure Test: 100% factory hydrostatic test at 1.5x working pressure (450 PSI).
• Burst Test: Minimum 4:1 safety factor (900 PSI burst vs. 300 PSI working).
• Temperature Test: Verified from -30°C to +80°C.
• Certifications: ISO 9001 factory. CE and SGS reports available upon request.

Common Failure Modes & Troubleshooting

Installation & Maintenance

1. Inspect before each use: Check for cuts, abrasions, or bulges.
2. Minimum bend radius: 10x hose OD. Avoid sharp kinks.
3. Fitting installation: Use only recommended fittings.
4. Pressure testing after assembly: Test at 1.5x working pressure (450 PSI) with water.
5. Cleaning: Wipe smooth surface with mild detergent. Do not use solvents.
6. Storage: Keep away from ozone, UV, and heat. Store indoors between 0°C and 40°C.
7. Lifespan: Replace every 2-3 years in heavy industrial use; up to 5 years for light duty.

FAQ – Frequently Asked Questions

Q1: Can I use this 300psi rubber air hose for water?
A: Yes, this 300psi rubber air hose for water is fully compatible with water up to 300 PSI and 80°C.

Q2: What is the 300psi air hose price per meter for bulk orders?
A: As a direct factory and wholesaler, we offer competitive 300psi air hose price per meter based on quantity. Contact us for a quote.

Q3: Do you provide wire braided air hose specification PDF?
A: Yes. Download our wire braided air hose specification PDF including full dimensions, tolerances, and test certificates.

Q4: Is this hose oil-resistant?
A: Standard rubber has moderate oil resistance. For continuous oil mist, choose the TPR cover (NBR/PVC compound).

Q5: How do I get a sample?
A: Samples are available. Contact our support team with your shipping details.

Q6: Can I use this for spray painting?
A: Yes. It is an excellent air hose for spray painting 300psi due to its smooth, cleanable surface and oil resistance.