Air/Rock Drill 35 Bar Manufacturer
Rock Drill Hose – Industrial & Mining Rubber Hose
Rock drill hoses are the lifeline between your compressor and the tools that do the hard work—jackhammers, drifters, rotary drills. They take a beating every day. If the hose gives out, everything grinds to a halt.
Most hoses fail for the same reasons: sharp rocks slice into them, oil mist makes them swell, or constant bending in the cold cracks them. FlexiHose Rock Drill Hose (IS 446 Type 3) doesn’t just survive these problems—it’s built for them. This isn’t some generic air hose forced into service. It’s designed from scratch for quarries, mines, and big construction jobs.
| NOMINAL BORE | MEAN O.D. (MM) |
MAX. WORKING PRESSURE | MIN. BURST PRESSURE | |||
|---|---|---|---|---|---|---|
| INCH | MM | PSI | BAR | PSI | BAR | |
| 1/2" | 12.50 | 21.00 | 510 | 35 | 2040 | 140 |
| 3/4" | 20.00 | 28.00 | 510 | 35 | 2040 | 140 |
| 1" | 25.00 | 35.00 | 510 | 35 | 2040 | 140 |
| 1¼" | 31.50 | 42.50 | 510 | 35 | 2040 | 140 |
| 1½" | 38.00 | 50.50 | 510 | 35 | 2040 | 140 |
| 2" | 50.00 | 64.00 | 510 | 35 | 2040 | 140 |
Technical Specifications
Application: Suitable for heavy-duty pneumatic operations in industries, construction sites.
Lining: Crafted from a nitrile rubber-based compound, offering excellent resistance to oil mist and heat.
Reinforcement: Incorporates a single braid of high-tensile brass-coated steel wire.
Cover: The outer layer is composed of modified natural and synthetic rubber blends.
Temperature Range: Operates efficiently within a temperature span of -30°C to +80°C.
Working Pressure: Designed to withstand working pressures up to 35 Bar.
Benefits
Enhanced Durability: The combination of high-quality materials and robust construction.
Operational Efficiency: Its flexibility and strength facilitate easy handling and installation.
Safety Assurance: Compliance with industry standards guarantees safe operation.
Versatility: Suitable for a wide range of applications.
Applications
Inner Tube –Nitrile rubber (NBR). This stuff stands up to oil mist, heat, and hydrocarbons—exactly what you want when your tools run off oil-lubricated compressors.
Reinforcement-A single braid of high-tensile brass-coated steel wire gives the hose muscle. It holds steady up to 35 bar working pressure, bursts at 140 bar, and still feels manageable out in the field.
Outer Cover-A rugged mix of natural and synthetic rubber. It’s made for the rough stuff: cuts, gouges, and abrasion from rock faces and jobsite debris.
Standards & Certifications-Made to IS 446 Type 3, the Indian Standard for rock drill and pneumatic air hoses. Every batch gets tested right at our facility.
Why Choose FlexiHose India
- FlexiHose is the brand from Vardhman Hydraulic Hoses Pvt. Ltd., making industrial and hydraulic rubber hoses in Bhiwadi, Rajasthan since 1980.
- Over 30 years of manufacturing—we don’t just trade hoses, we make them, test them, and ship them ourselves.
- Sizes from ½” to 2″ are always in stock, and we cut custom lengths or bores for big site orders.
- In-house batch testing—every lot gets pressure-tested before it leaves. No outsourcing, no surprises.
- Direct-from-manufacturer pricing—no middlemen, no extra markups. We handle bulk orders for miners and EPCs directly.
Key Features & Benefits
- Heavy-duty build — The brass-coated steel wire braid can take serious pressure spikes without ballooning. Even if the hose gets kinked or run over, it keeps its shape.
- Oil and abrasion resistance — The nitrile rubber inner tube shrugs off oil mist from pneumatic tools. The tough outer cover handles scraping against rocks and machinery day after day, without cracking.
- Handles any weather — It works from –30°C to +80°C. So whether you’re starting up on a freezing morning in the mountains or working through a blistering summer, the hose stays flexible and doesn’t deform.
- Flexible in the field — Need to route the hose around awkward corners or equipment? No problem. It bends tight without pinching off airflow, and workers can move it around without a fight.
Construction & Materials
Inner Tube –Nitrile rubber (NBR). This stuff stands up to oil mist, heat, and hydrocarbons—exactly what you want when your tools run off oil-lubricated compressors.
Reinforcement-A single braid of high-tensile brass-coated steel wire gives the hose muscle. It holds steady up to 35 bar working pressure, bursts at 140 bar, and still feels manageable out in the field.
Outer Cover-A rugged mix of natural and synthetic rubber. It’s made for the rough stuff: cuts, gouges, and abrasion from rock faces and jobsite debris.
Standards & Certifications-Made to IS 446 Type 3, the Indian Standard for rock drill and pneumatic air hoses. Every batch gets tested right at our facility.
FAQs
What is the standard working pressure of a rock drill hose?
Most rock drill hoses are designed for 20–21 bar working pressure, but higher pressure variants are also available depending on industrial requirements.
What sizes are available in rock drill hoses?
Rock drill hoses are available in multiple sizes such as:
1/2 inch
3/4 inch
1 inch
1.5 inch
Custom sizes can also be manufactured as per project requirements.
What is the price of a rock drill hose?
The price depends on:
Size and length
Pressure rating
Material quality
Quantity (bulk orders get better pricing)
For accurate pricing, it’s best to request a quote based on your requirement.
What material is used in rock drill hoses?
Rock drill hoses are typically made with:
Oil-resistant synthetic rubber inner tube
High tensile steel wire reinforcement
Abrasion-resistant outer cover
This ensures durability in harsh environments.
What is the difference between a rock drill hose and an air hose?
Rock drill hoses are:
Stronger and thicker
Designed for higher pressure
More resistant to abrasion
Whereas standard air hoses are used for lighter applications.