Harken -6 Integral Backstay Cylinder — 25mm Bore, 345mm Stroke

Harken’s integral hydraulic backstay adjuster provides the power to optimize sail shape quickly. The cylinder features a built-in, double-acting pump that delivers oil when the handle is both pushed and pulled. This moves oil through the system twice as fast as single-acting pumps on other integrals. Assemblies include a hardcoat-anodized aluminum cylinder and pump, valve, and stainless pump handle with three attachment options: pin installs handle permanently; O-ring secures handle in socket, but is not permanent; nonlocking handle installs without O-ring and roll pin. All pins and plugs are stainless steel. Cylinders include a clevis on both ends. Standard eye-jaw toggles fit all Harken® cylinders. The pressure release knob turns clockwise to close and pump, counterclockwise to release. When closing the pump, the knob cannot be over-tightened by hand, preventing damage to the valve. Release speed depends on how far open the knob is turned. Pressure relief is factory set to prevent crew from over-tensioning the backstay. ‘- Size -6
Maximum wire Ø (mm) 5.5 mm
Maximum wire Ø (in) 7/32 in
Stroke (mm) 343 mm
Stroke (in) 13.5 in
Pin center length (closed) (mm) 762 mm
Pin center length (closed) (in) 30 in
Weight (kg) 3.37 kg
Weight (lb) 7.4 lb
Gap/pin Ø (mm) 11.1 mm
Gap/pin Ø (in) 7/16 in
Pull force @ 1000 psi/69 bar (kg) 564 kg
Pull force @ 1000 psi/69 bar (lb) 1243 lb
Pull force @ 2000 psi/138 bar (kg) 1128 kg
Pull force @ 2000 psi/138 bar (lb) 2487 lb
Pull force @ 3000 psi/207 bar (kg) 1692 kg
Pull force @ 3000 psi/207 bar (lb) 3490 lb
Breaking load (kg) 3175 kg
Breaking load (lb) 7000 lb

Marca	HARKEN
SKU	HCI025110345BCC.NG
GTIN	097653285694

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