The DARDA S1 oilfilled hose assembly with quickcouplings is a dedicated hydraulic hose kit designed specifically for use with hydraulic splitting cylinders and portable hydraulic power packs in jobsite demolition, rock splitting and concrete fracturing operations.
Design:
- The hose assembly is oilfilled or rated for hydraulic oil service, ensuring compatibility with the standard mineraloilbased hydraulic circuits used by DARDA power packs and splitting cylinders.
- Includes quickdisconnect couplings at each end (male & female halves) so that the hose can be rapidly connected or disconnected from the power unit or cylinder without tools, reducing downtime and preventing fluid loss during changeovers. The quickcouplings conform to highperformance industrial standards (e.g., steel bodies, poppet valves, ISO7241A/B style interchangeability).
- Hose construction is engineered for high pressure hydraulic service: furnished with an oilresistant inner tube, steelwire reinforcement layers (spiral or braid), and abrasion/ozone resistant outer cover. Example: a reference spiral highpressure hose described as inner tube oil resistant synthetic rubber; reinforcement four (up to DN25) or six hightensile steel wire spirals; cover synthetic rubber with high temperature, ozone and abrasion resistance.
- The quickcoupling ends are designed for field service: minimal leakage upon disconnection, reliable sealing under pressure, and rapid reconnection to support mobile or rental equipment usage. Examples of coupling materials include carbon steel or stainless steel bodies, hardened internal valve parts, and seals compatible with hydraulic oil and wide temperature ranges.
- Ergonomics: The hose length, routing and coupling arrangement is built for portable use for example pairing with handheld splitters or portable hydraulic units, enabling crews to move the hose easily, swap tools quickly, and manage jobsite deployments with minimal setup fuss.
Applications:The S1 hose assembly with quick couplings is suited for a broad range of hydraulic tool setups, particularly in demolition, quarrying, construction and rental environments.
- Connecting a portable hydraulic powerpack to a DARDA splitting cylinder (or other hydraulic tool) where frequent tool changes or modular systems are in use. The quick coupling allows the hose to be detached easily when switching cylinders or relocating equipment.
- Mobile jobsite usage (rental fleets, service crews) where hydraulic tools must be set up, used, and moved frequently the quick coupling feature improves efficiency and reduces downtime.
- Rough jobsite conditions (rock quarries, concrete demolition, foundation repair) where the hose must withstand abrasion, impact, twisting, and potentially dragging over uneven surfaces. The heavyduty hose construction supports durability in these contexts.
- Confined access or overhead work (e.g., indoor demolition, tunnel work) where hose flexibility, coupling reliability and rapid tool change matter.
- Integration with multitool systems: For example, multiple splitting cylinders may be connected to a common power pack via a hose manifold or quickcoupled hose assembly, enabling rapid reconfiguration of equipment on site.
Materials:The S1 hose assembly is built from robust materials appropriate for highpressure hydraulic service in rugged environments:
- Inner tube: Oilresistant synthetic rubber (for mineral hydraulic oil compatibility). Example references show inner tube oilresistant synthetic rubber for highpressure hydraulic hoses.
- Reinforcement: Multiple layers of hightensile steel wire spirals or braid (depending on hose size/pressure rating) to provide high burst strength, resistance to impulse loads and long fatigue life. Example: four or six hightensile steel wire spirals for a hydraulic spiral hose.
- Cover (outer jacket): Synthetic rubber cover designed for abrasion resistance, ozone resistance, weather resilience and jobsite durability. Example: synthetic rubber with high temperature, ozone and abrasion resistance.
- Quickcoupling bodies: Carbon steel or stainless steel, machined from solid bar stock, often heat treated; internal poppet valves; sealing surfaces hardened; locking mechanisms (balls or sleeves) ensure safe coupling. Example: LSQS1 generalpurpose quick coupling body: carbon steel, seals NBR, rated up to 345bar for oil service.
- Coupling seals: Seals made of elastomers compatible with hydraulic oil and rated temperatures (e.g., NBR, Viton, EPDM depending on spec). Example: quickrelease coupling uses NBR standard seal material.