Product Overview

The ENGMATTEC HULK R6K is an elite-grade Isobaric spiral hydraulic hose engineered for high-pressure and high-impulse applications.

Unlike conventional spiral hoses, the HULK R6K maintains a constant working pressure of 6100 PSI (420 bar) across all sizes, simplifying system design for heavy-duty machinery.

Manufactured with a resilient four and six-wire high-tensile steel spiral construction, this hose is designed and manufactured with an exceptional Industry leading Minimum bend radius and to also withstand the most brutal working conditions in mining, construction, and drilling.

Available in sizes -10 to -32 (5/8" to 2") in 45 Meter Coils only.

Technical Specifications

Hose Dimensions & Pressure Ratings

Construction & Performance

• Inner Tube: Black, oil-resistant synthetic rubber.
• Reinforcement: Four or six layers of high-tensile steel wire spiral.
• Cover: Wrapped finish, abrasion, ozone, oil, and weather-resistant synthetic rubber.
• Temperature Range: -40°C to +121°C.
• Impulse Cycles: Tested to 1,000,000 cycles.
• Branding: ISO18752-CC MSHA IC 304 compliant.

Compliance Standards: MDG41 & AS 2435 Matched System Guarantee

To ensure the highest level of operational safety and to meet the stringent requirements of MDG41 (Mechanical Design Guideline 41) and AS 2435 (Hydraulic Hose Assemblies), we exclusively provide and always recommend matched high-pressure hose and hose fitting systems. This professional commitment applies to all individual components we sell, as well as our custom-made hose assemblies.

Both Australian Standards and mining guidelines mandate that the hose, fitting, and ferrule be laboratory-tested together as a unified system to prevent catastrophic failure or fluid injection injuries. We will always recommend and provide the specific high-pressure hose that is manufactured to match the fittings we sell, ensuring a fully engineered N Series non-skive assembly rated to 420 bar / 6100 psi.

Technician’s Advice

The SUNFLEX HULK R6K is a formidable choice for high-duty cycle equipment. Because it is an Isobaric hose, you get a consistent 6100 PSI rating even in the larger 2" sizes, which is rare.

When assembling, remember that this hose is designed for M/N Series (Spiral) fittings. Using a matched system is critical here; at 420 bar, even a minor mismatch in swage dimensions can lead to a dangerous failure.

Always protect your investment with Spiral Protective Wrap to prevent external abrasion in high-traffic areas.

Bulk Hose Discounts Available