This hose assembly is part of Dardas S2 system (as opposed to S1) and is designed for use with the Darda D4E hydraulic power unit or similar largecapacity power packs. It comprises a twinline hose set (highpressure + return) of length 10meters ( 33ft), plus a manifold block with one to three outlets to allow multiple tools to be connected downstream. Quickcouplings are not included, so the user attaches appropriate couplers as required.
Design:
- Twinline hose set (S2): The S2 designation implies a higher capacity hydraulic hose assembly for more demanding tool/flow/pressure scenarios. The S2 hose set can include highpressure (HP) and lowpressure (LP) lines. In the Darda documentation: Hydr. Doppelschlauch S2 (10m) indicates two hoses plus a manifold.
- Length: 10m overall length giving mobility and separation between the power unit and tool(s).
- Manifold block: The assembly includes a builtin manifold (1 to 3 outlets) allowing multiple tools (cylinders or breakers) to be run in parallel off the same hose set.
- No couplings included: The hose ends are supplied without quickconnect couplings, so applicationspecific couplers are fitted by the user.
- Compatibility: Designed to integrate with Darda D4E power units and appropriate tools (splitters, breakers, etc.). The D4E series power units indicate manifold capability for up to 3 or 5 device connections.
- Durability: The hose set is specified for heavyduty use in demolition/rock splitting environments; the materials and construction are selected accordingly (abrasion, weather, hydraulic fatigue, bend radius).
- Identification & fitout: The hose set likely is marked for high/lowpressure, rated length, maximum pressure, and intended outlet manifold configuration.
Applications:
- Multiple tool operations: Because the manifold allows 1 to 3 (or more) outlets, this hose set is ideal in scenarios where multiple hydraulic tools (cylinders, splitters) need to be run from the same power unit.
- Long reach / remote tool placement: The 10m length enables the tool operator to move a substantial distance from the hydraulic power pack useful in mining, quarrying, demolition, tunneling or confined spaces.
- Heavy duty splitting or demolition: Using Dardas D4E (large dieselengine power pack) suggests high flow/pressure needs and so the S2 hose set is selected. Tools such as splitters, combishears, large cutters would use this.
- Jobsite flexibility: The manifold allows one hose assembly to branch to multiple tools, reducing hose inventory and simplifying logistics on site.
- Replacement/upgrade: This hose set can serve as a standard replacement for jobs requiring the S2 capacity, or as an upgrade from smaller S1 hose sets for more demanding tasks.
Materials:
- Inner tubes (HP line): Oilresistant synthetic rubber (e.g., HNBR, NBR) suitable for the hydraulic fluid used in Darda tools.
- Reinforcement (HP line): One or more steel wire braids/spirals (or textilesteel hybrid) to support high working and burst pressures.
- Outer cover (HP line): Abrasionresistant synthetic rubber or polyurethane outer jacket to resist jobsite abrasion, weather, rock dust, chemicals.
- Return line (LP line): Synthetic rubber tube, reinforcement braid sufficient for lower pressure, outer cover similarly rugged.
- Manifold block: Typically machined steel (alloy) or possibly aluminium alloy for strength and durability. Ports for 13 outlets, robust connection points, pressure gauge port, relief valve location.
- Fittings/termination ends: Steel or alloy hose ends prepared to accept the couplings, likely plated for corrosion resistance (zincnickel or similar).
- Hose clamps/retainers: Where twinline hoses run in parallel, clamps held together for ease of routing and support.
- Markings/labels: Printed or embossed on outer cover, possibly with service date, hose ID etc.