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HarkenHarken Size -12 Integral Backstay Cylinder - 40 mm Bore; 385 mm Stroke

Description


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, gauge, 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.

An analog gauge with pressure increments reading 0-5 (0-5000 psi) is prominently mounted at the top of the cylinder. The gauge adjusts to four positions for easy viewing from the cockpit.

Specifications


Part # Max Wire Diameter
(closed/open)
Stroke Pin Center Length (closed) Weight Gap / Pin Diam.
Size 6 5.5mm
7/32"
343 mm
13 1/2"
762 mm
30"
3.37 kg
7.4 lb
11.1 mm
7/16"
Size 10 7 mm
9/32"
343 mm
13 1/2"
762 mm
30"
3.37 kg
7.4 lb
12.7 mm
1/2"
Size 12 8 mm
5/16"
385 mm
15.2"
832 mm
32.8"
4.92 kg
10.4 lb
15.9 mm
5/8"
Size 17 9.5 mm
3/8"
385 mm
15.2"
832 mm
32.8"
4.92 kg
10.4 lb
15.9 mm
5/8"


Part # Pull Force @ Breaking Load
1000 psi / 69 bar 2000 psi / 138 bar 3000 psi / 207 bar 4000 psi / 276 bar 5000 psi / 345 bar
Size 6 564 kg
1243 lb
1128 kg
2487 lb
1692 kg
37490 lb
-- kg
-- lb
3175 kg
7000 lb
3175 kg
7000 lb
Size 10 564 kg
1243 lb
1128 kg
2487 lb
1692 kg
37490 lb
2250 kg
4960 lb
5608 kg
12364 lb
5608 kg
12364 lb
Size 12 952 kg
2098 lb
1904 kg
4197 lb
2855 kg
6295 lb
3807 kg
8394 lb
9518 kg
20984 lb
9518 kg
20984 lb
Size 17 952 kg
2098 lb
1904 kg
4197 lb
2855 kg
6295 lb
3807 kg
8394 lb
9518 kg
20984 lb
9518 kg
20984 lb
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    Code: HARHCI040160385BCC
    Black Friday Price: $1,628.00
    Original Price:$1,875.00
    (You Save: $247.00)

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