Harken Hydraulic BackstayHarken

About Hydraulic Backstay Adjusters


Harken Adds Two Sizes to Double-Acting Hydraulic Backstay Adjuster Line

harken backstay adjusterHarken has added two larger sizes to its line of Integral Hydraulic Backstay Adjusters. These additions to Harken's other two sizes have expanded the range to accommodate boats with wires from 5.5 to 9.5 mm (7/32 to 3/8 in) approximately 9-18 m (30-60 ft). In an industry first, the cylinder features an integrated double-acting pump that delivers oil when the handle is pushed and pulled, reducing pumping time by nearly doubling the flow of single-acting pumps standard on other integrals.

“Creative engineering and design allowed Harken to greatly improve our integrals over other systems out there,”said Harken Hydraulics Manager Robbie Young. “Our double-acting pumps deliver oil twice as fast as single-acting pumps which are standard on other integrals.”

Other key concepts:
The pressure release has been reconfigured, making it impossible for crew to over-tighten the screw by hand and damage the valve when closing it for pumping-a common problem on other cylinders.

A gauge with an easy-to-read analog display mounts at the top-not the bottom-of the cylinder for easy viewing from the cockpit. Pressure relief is factory set to prevent crew from over-tensioning the backstay.

Cylinders come standard in four sizes with a clevis on both ends. Assemblies include a hardcoat-anodized aluminum cylinder and pump, valve, gauge, and stainless pump handle with three attachment options. All pins and plugs are stainless steel. Clear-anodized aluminum cylinders are available upon request.

 

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
Currency:
HARHCI025110345BCC - Harken  Size -6 Integral Backstay Cylinder
Code: HARHCI025110345BCC
Original Price: $1,575.00
Price: $1,386.00
(You Save: $189.00)
HARHCI035130345BCC - Harken  Size -10 Integral Backstay Cylinder
Code: HARHCI035130345BCC
Original Price: $1,575.00
Price: $1,386.00
(You Save: $189.00)
HARHCI040160385BCC - Harken  Size -12 Integral Backstay Cylinder - 40 mm Bore; 385 mm Stroke
Code: HARHCI040160385BCC
Original Price: $1,875.00
Price: $1,628.00
(You Save: $247.00)
HARHCI045160385BCC - Harken  Size -17 Integral Backstay Cylinder - 45 mm Bore; 385 mm Stroke
Code: HARHCI045160385BCC
Original Price: $1,875.00
Price: $1,628.00
(You Save: $247.00)

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