Yale Kernmaster 7/16" 11mm Static Climbing Line Orange/Blue
The Yale Kernmaster 11mm Static Climbing Line is a high-performance arborist climbing rope engineered for mechanical climbing systems and competitive tree climbing. Its kern-and-mantle construction pairs an exclusive 48-carrier polyester cover with a braided, energy-absorbing nylon core that is fully steam-stabilized for enhanced flexibility and resistance to hardening in service. The braid design cycles easily over sheaves with minimal core fatigue, making it an excellent choice for SRS/SRT applications. Certified to CE0598 EN1891 Type A.
Key Features
- 48-Carrier Polyester Cover — Exclusive ultra-smooth construction for low friction and consistent handling
- Braided Nylon Kern — Energy-absorbing core provides excellent dynamic response and flexibility
- Fully Steam-Stabilized Core — Prevents hardening in service and enhances long-term flexibility
- Low Sheave Fatigue — Bends easily over sheaves with minimal core cycling fatigue
- Ideal for Mechanical Climbing Systems — Suited to SRS/SRT and competitive tree climbing applications
- EN1891 Type A Certified — CE0598 certification for low-stretch kernmantle ropes
- Available in Multiple Lengths — 120 ft, 150 ft, 200 ft, and 600 ft
Specifications
- Brand: Yale Cordage
- Product: Kernmaster
- Colour: Orange/Blue
- Diameter: 7/16" (11mm)
- Construction: 48-carrier polyester cover / braided nylon kern
- Average Break Strength: 7,300 lbs
- Weight: 5.5 lbs per 100 ft
- Certification: CE0598 EN1891 Type A
- Available Lengths: 120 ft, 150 ft, 200 ft, 600 ft
- Country of Origin: USA
Frequently Asked Questions
Is the Yale Kernmaster suitable for SRS/SRT climbing?
Yes — the Kernmaster is ideally suited for mechanical climbing systems including SRS (single rope system / stationary rope system) configurations. Its 48-carrier cover and steam-stabilized nylon kern provide the consistent handling and low fatigue characteristics that SRS climbers rely on for all-day use.
What certification does the Yale Kernmaster hold?
The Kernmaster is certified to CE0598 EN1891 Type A, the European standard for low-stretch kernmantle ropes used in work at height. Type A ropes meet the highest performance requirements under EN1891, including elongation, knotability, and sheath slippage criteria.
What is the difference between the kern and the mantle in this rope?
The “mantle” (cover) is a 48-carrier polyester braid that provides abrasion resistance, UV protection, and smooth handling. The “kern” is the braided nylon core that carries the structural load and provides energy absorption. The nylon kern is fully steam-stabilized to maintain flexibility and prevent the stiffening that can occur with heavily loaded ropes over time.
Which length should I choose?
For most arborist climbing applications, 120–150 ft covers the majority of working heights. The 200 ft option suits taller trees or longer access runs. The 600 ft spool is best for teams or facilities that cut rope to length for multiple setups. Contact us if you’re unsure which length suits your specific application.