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High Pressure 3/4" Rubber Air Hose for Mining, Rock Drill & Air Compressor Systems | Expandag
- Technical Specifications
A rubber air hose, also known as a compressed air hose or pneumatic hose, is used to transfer pressurized air from an air compressor to pneumatic equipment such as rock drills and jackhammers. In mining and construction, a high-pressure reinforced air hose is essential for maintaining stable airflow and preventing energy loss.
Expandag's heavy-duty 3/4" (19mm) industrial air hose is commonly used in mining sites, quarry drilling, and heavy construction environments where stable compressed air supply is critical. Built to withstand extreme conditions, this durable braided air line hose guarantees a consistent, leak-proof air supply for your heavy-duty operations.
Key Features of Our High Pressure Air Hose
Multiple Reinforcement Options: Available in both high-strength textile (Cord Braided) and Steel Wire reinforcement layers to meet different blasting pressure requirements.
Extreme Weather Resistant: The outer synthetic rubber cover is highly resistant to abrasion, ozone, and harsh UV rays found in open-pit mines.
High Working Pressure: Rated up to 300 PSI (Cord Braided) and over 1500 PSI (Steel Wire), easily handling the most demanding industrial air compressors.
Anti-Kink Design: Highly flexible construction prevents kinking and twisting, ensuring smooth airflow for any pneumatic tool air hose application.
Cord Braided Rubber Air Hose Technical Data Sheet
| Model (inch) | Inner Diameter (mm) | Working Pressure (BAR) | Working Pressure (PSI) | Blasting Pressure (BAR) | Blasting Pressure (PSI) | Length (Meter/Roller) |
|---|---|---|---|---|---|---|
| 1/4" | 6 | 20 | 300 | 60 | 870 | 50/100 |
| 5/16" | 8 | 20 | 300 | 60 | 870 | 50/100 |
| 3/8" | 10 | 20 | 300 | 60 | 870 | 50/100 |
| 1/2" | 13 | 20 | 300 | 60 | 870 | 50/100 |
| 5/8" | 16 | 20 | 300 | 60 | 870 | 50/100 |
| 3/4" (Featured) | 19 | 20 | 300 | 60 | 870 | 50/100 |
| 1" | 25 | 20 | 300 | 60 | 870 | 50/100 |
| 1-1/4" | 32 | 20 | 300 | 60 | 870 | 50 |
| 1-1/2" | 38 | 20 | 300 | 60 | 870 | 50 |
| 2" | 51 | 20 | 300 | 60 | 870 | 50 |
Steel Wire Air Hose Technical Data Sheet
| Model | Working Pressure (MPA) | Working Pressure (PSI) | Notes |
|---|---|---|---|
| 1*19 | 10.5 | 1523 | 10 |
| 1*25 | 8.7 | 1262 | 14 |
| 1*32 | 6.2 | 900 | 20 |
| 1*38 | 5 | 725 | 24 |
Applications & Secure Connections
This mining air hose is the standard lifeline for pneumatic rock drills (YT28 / YT29A), paving breakers, and industrial air compressor systems. Whether you need a durable jackhammer air hose or a reliable line for HSCA expansive mortar borehole drilling, this hose guarantees top performance.
Pro Tip for Safety: To ensure a 100% leak-proof connection at 300 PSI or 1500 PSI, we highly recommend securing this air line hose with our genuine Double Bolt Clamps and Universal Claw Couplings (Chicago Couplings).
Mining & Industrial Air Hose FAQs
Q1: Is this rubber air hose suitable for underground mining environments?
A: Yes. Our hoses feature an abrasion-resistant synthetic rubber cover specifically designed to withstand the harsh dragging and rock-scraping common in underground mines and quarries without tearing or losing integrity.
Q2: What is the maximum pressure rating for your compressor hoses?
A: Our Cord Braided textile hoses are rated for a safe continuous working pressure of 300 PSI (20 Bar). For high-pressure applications, our Steel Wire reinforced models handle extreme loads up to 1523 PSI (10.5 MPA).
Q3: Can I buy these air hoses in bulk or custom lengths?
A: Absolutely. As a direct manufacturer, we supply wholesale rolls in 50m or 100m. We also offer OEM branding and customized lengths for large-scale mining infrastructure projects.
Q4: What is the operating temperature range for Expandag rubber hoses?
A: Our hoses are engineered for industrial resilience, maintaining flexibility and performance in temperatures ranging from -30°C to +80°C (-22°F to +176°F), making them ideal for both high-altitude mining and tropical quarrying sites.
Q5: How do I know when it's time to replace my industrial air hose?
A: You should inspect your air line hose daily. Replacement is necessary if you see any exposed reinforcement (braid/wire), deep surface cracks, localized bulging (blisters), or if the hose feels excessively soft near the couplings.
Q6: Why is 3/4" (19mm) the most common size for rock drilling?
A: The 3/4 inch air hose provides the perfect balance between airflow volume (CFM) and weight. It delivers enough air to drive high-energy drills like the YT28 without creating excessive drag for the operator in the field.
