Hydraulic Hose SN, SC, SP Specifications: Differences, Applications & Advantages
Hydraulic hoses are classified into different specifications (SN, SC, SP) based on their construction, pressure ratings, and intended applications. These designations follow international standards such as EN853, EN856, and SAE, ensuring compatibility with various hydraulic systems. Below is a detailed comparison of SN, SC, and SP hoses, including their structures, typical uses, and key benefits.
1. SN Hose (Single Wire Braid)
Structure & Standards
Standard: EN853 / SAE 100R1AT
Reinforcement: 1 layer of hightensile steel wire braid
Pressure Range: 10–25 MPa (1450–3625 psi)
Burst Pressure: ≥4x working pressure
Applications
✔ Low to mediumpressure hydraulic systems
✔ Agricultural machinery (tractors, harvesters)
✔ Light industrial equipment (logistics carts, small presses)
✔ HVAC and lubrication systems
Advantages
✅ Lightweight & flexible – Easy to install in tight spaces
✅ Costeffective – Best for budgetsensitive applications
✅ Good abrasion resistance – Suitable for mobile equipment
2. SC Hose (Two Wire Braids)
Structure & Standards
Standard: EN853 / SAE 100R2AT
Reinforcement: 2 layers of steel wire braid
Pressure Range: 16–40 MPa (2320–5800 psi)
Burst Pressure: ≥4x working pressure
Applications
✔ Mediumpressure hydraulic systems
✔ Construction machinery (excavators, loaders)
✔ Material handling (forklifts, cranes)
✔ Industrial hydraulic power units
Advantages
✅ Higher pressure capacity than SN hoses
✅ Better pulse resistance (400,000+ cycles)
✅ Balanced flexibility & durability – Ideal for dynamic movements
3. SP Hose (Four Wire Braids or Spirals)
Structure & Standards
Standard: EN856 / SAE 100R12 (4SP) or SAE 100R13 (4SH)
Reinforcement: 4 layers of steel wire (braided or spiralwound)
Pressure Range: 25–60 MPa (3625–8700 psi)
Burst Pressure: ≥4x working pressure
Applications
✔ Highpressure & ultrahighpressure systems
✔ Mining equipment (drilling rigs, rock breakers)
✔ Oilfield & hydraulic fracturing (fracking)
✔ Heavyduty presses & injection molding machines
Advantages
✅ Extreme pressure resistance – Handles the toughest hydraulic demands
✅ Superior pulse durability (600,000+ cycles)
✅ Enhanced abrasion & corrosion resistance – Long service life in harsh environments
Selection Guide
Choose SN if: You need a flexible, lowcost hose for light hydraulic systems.
Choose SC if: You need a balanced hose for mediumpressure applications with frequent movement.
Choose SP if: You require maximum pressure resistance for heavy machinery or extreme conditions.
For specialized requirements (e.g., foodgrade, extreme temperatures, or chemical resistance), check additional hose variants like R13 (4SH) for ultrahigh pressure or thermoplastic hoses for corrosive fluids.
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