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Harken, Inc.
Hydraulic Cylinders

Single-Acting Cylinders

Wide screen single player

 

Links:

Hydraulics

Choosing Hydraulic Systems

Ordering Single-Acting & Locking Cylinders

Locking Cylinders

Double-Pull Cylinders

Cylinder Blocks & Toggles

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Grand Prix Cylinders

Hydraulic Cylinder Brochure PDF

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General Warnings and Instructions

Hydraulics

Harken's full range of cylinders are perfect for mast, sail, and keel controls. They stand up to years of high-stress use in harsh marine environments and have proven themselves on yachts of all types—from racers to bluewater cruisers and megayachts. Their efficiency, longevity, and reliability are evident in the selection of high-quality components, all supported by workmanship of the highest standards.

 

Cylinder rod and piston seals

Cylinders are available in stainless steel or Hardkote-anodized, Teflon®-impregnated, 6061-T6 aluminum for strength and corrosion resistance.

 

Graphite-filled Teflon® rod seals and bronze-filled Teflon® piston seals are extremely low friction and are more durable than polyurethane seals. Performance O-rings and slant springs in the seals provide consistent seal pressure for a reliable long-lasting fit. Nitronic 50 stainless steel rods and pins provide superior strength and corrosion resistance.

 

Cylinders include a standard clevis jaw on both ends, but can also be fitted with blocks and different eye types. Custom cylinder lengths are also available.

 

 

 

 


Part
No.* 		Download
drawings		 - Size Stroke Pin center
length
(closed)** 		Weight*** Volume Diameter
6061-T6
Aluminum 		316
Stainless 		Gap/pin Bore Rod Max OD
in mm in mm lb kg lb kg in3 L in mm in mm in mm in mm
HYCS025110265 2D 3D PDF -6 10.4 265 18.7 474 2.1 0.97 4.5 2.03 7 0.11 7/16 11.1 1 25 7/16 11 1.5 38
HYCS025110360 2D 3D PDF -6 14.2 360 22.4 569 2.5 1.13 5.2 2.36 9 0.15 7/16 11.1 1 25 7/16 11 1.5 38
HYCS025110530 2D 3D PDF -6 20.9 530 29.1 739 3.1 1.42 6.5 2.96 13 0.22 7/16 11.1 1 25 7/16 11 1.5 38
HYCS035130230 2D 3D PDF -10 9.1 230 19.4 494 3.4 1.54 7.6 3.44 12 0.19 1/2 12.7 1-3/8 35 1/2 13 1.81 46
HYCS035130350 2D 3D PDF -10 13.8 350 24.0 609 4.1 1.88 9.3 4.20 18 0.29 1/2 12.7 1-3/8 35 1/2 13 1.81 46
HYCS035130510 2D 3D PDF -10 20.1 510 31.1 789 5.2 2.37 11.8 5.36 26 0.42 1/2 12.7 1-3/8 35 1/2 13 1.81 46
HYCS040160260 2D 3D PDF -12 10.2 260 20.0 508 4.6 2.08 9.7 4.41 15 0.24 5/8 15.9 1- 1/2 40 5/8 16 1.98 50
HYCS040160375 2D 3D PDF -12 14.8 375 24.8 629 5.6 2.53 11.9 5.39 22 0.35 5/8 15.9 1-1/2 40 5/8 16 1.98 50
HYCS040160625 2D 3D PDF -12 24.6 625 35.6 905 7.8 3.54 16.8 7.62 36 0.59 5/8 15.9 1-1/2 40 5/8 16 1.98 50
HYCS045160260 2D 3D PDF -17 10.2 260 20.0 507 5.4 2.47 12.0 5.46 21 0.35 5/8 15.9 1-3/4 45 5/8 16 2.27 58
HYCS045160375 2D 3D PDF -17 14.8 375 25.0 634 6.6 3.01 14.8 6.69 31 0.51 5/8 15.9 1- 3/4 45 5/8 16 2.27 58
HYCS045160800 2D 3D PDF -17 31.5 800 43.1 1095 10.9 4.96 24.7 11.19 66 1.08 5/8 15.9 1-3/4 45 5/8 16 2.27 58
HYCS055190275 2D 3D PDF -22 10.8 275 22.4 568 9.3 4.23 21.2 9.63 36 0.59 3/4 19.1 2-3/16 55 3/4 19 2.86 73
HYCS055190400 2D 3D PDF -22 15.7 400 27.3 693 11.2 5.09 25.6 11.62 52 0.86 3/4 19.1 2-3/16 55 3/4 19 2.86 73
HYCS055190900 2D 3D PDF -22 35.4 900 49.7 1263 19.5 8.84 45.2 20.50 118 1.93 3/4 19.1 2-3/16 55 3/4 19 2.86 73
HYCS065220300 2D 3D PDF -30 11.8 300 25.1 637 12.9 5.83 28.9 13.12 51 0.83 7/8 22.2 2-1/2 65 7/8 22 3.17 81
HYCS065220450 2D 3D PDF -30 17.7 450 31.0 787 15.6 7.06 35.0 15.87 76 1.25 7/8 22.2 2-1/2 65 7/8 22 3.17 81
HYCS065221025 2D 3D PDF -30 40.4 1025 55.4 1407 26.5 12.03 59.8 27.12 174 2.85 7/8 22.2 2-1/2 65 7/8 22 3.17 81
HYCS075250300 2D 3D PDF -40 11.8 300 27.6 700 20.5 9.29 46.8 21.23 74 1.22 1 25.4 3 75 1 25 3.8 97
HYCS075250475 2D 3D PDF -40 18.7 475 34.4 874 24.9 11.28 56.8 25.74 118 1.93 1 25.4 3 75 1 25 3.8 97
HYCS075251150 2D 3D PDF -40 45.3 1150 63.2 1606 42.8 19.40 98.1 44.51 284 4.66 1 25.4 3 75 1 25 3.8 97
HYCS080250300 2D 3D PDF -48 11.8 300 28.3 719 23.7 10.73 56.3 25.55 81 1.33 1-1/8 28.6 3-1/8 80 1 25 4.07 103
HYCS080250475 2D 3D PDF -48 18.7 475 35.1 892 28.8 13.05 68.4 31.04 129 2.11 1-1/8 28.6 3-1/8 80 1 25 4.07 103
HYCS080251150 2D 3D PDF -48 45.3 1150 64.0 1626 49.7 22.56 118.8 53.87 312 5.11 1-1/8 28.6 3-1/8 80 1 25 4.07 103
HYCS090320375 2D 3D PDF -60/-76 14.8 375 31.3 796 34.5 15.64 80.7 36.60 124 2.03 1-1/4 31.8 3-1/2 90 1-1/4 32 4.57 116
HYCS090320550 2D 3D PDF -60/-76 21.7 550 39.3 999 42.1 19.11 98.6 44.72 182 2.98 1-1/4 31.8 3-1/2 90 1-1/4 32 4.57 116
HYCS100320425 2D 3D PDF -90 16.7 425 35.0 889 51.0 23.15 119.9 54.5 190 3.11 1-3/8 34.9 4 100 1-1/4 32 5.2 132
HYCS100320625 2D 3D PDF -90 24.6 625 43.3 1099 62.0 28.14 146.1 66.4 268 4.39 1- 3/8 34.9 4 100 1-1/4 32 5.2 132
HYCS115350475 2D 3D PDF -110 18.7 475 39.9 1014 70.2 31.82 163.5 74.3 270 4.43 1-1/2 38.1 4-1/2 115 1-3/8 35 5.8 147
HYCS115350700 2D 3D PDF -110 27.6 700 49.4 1255 85.7 38.86 200.7 91.2 397 6.51 1-1/2 38.1 4-1/2 115 1-3/8 35 5.8 147
HYCS130380475 2D 3D PDF -150 18.7 475 42.9 1090 103.9 47.11 239.7 109.0 353 5.79 1- 3/4 44.5 5-1/8 130 1-1/2 38 6.5 165
HYCS130380700 2D 3D PDF -150 27.6 700 51.8 1315 121.9 55.30 284.3 129.2 520 8.52 1-3/4 44.5 5-1/8 130 1-1/2 38 6.5 165
HYCS145480500 2D 3D PDF -195 19.7 500 39.9 1014 141.6 64.25 317.9 144.5 457 7.49 2-1/8 54 5- 3/4 145 1-7/8 48 7.4 188
HYCS145480750 2D 3D PDF -195 29.5 750 54.5 1384 168.5 76.43 381.7 173.5 685 11.23 2-1/8 54 5-3/4 145 1-7/8 48 7.4 188

*Specify material choice and rod and clevis end fittings by adding appropriate 3-letter code to end of part number. See ordering.

**For pin center length open add stroke length to pin center length closed

***Rod ends (forks) included in weights


Loading Information
Part
No. 		Pull force*** Breaking
load
@ 1000psi
69 bar 		@ 2000 psi
138 bar 		@ 3000 psi
207 bar 		@ 4000 psi
276 bar 		@ 5000 psi
345 bar
lb kg lb kg lb kg lb kg lb kg lb kg
HYCS025110265 635 288 1270 576 1905 864 2540 1152 3175 1440 6400 2903
HYCS025110360 635 288 1270 576 1905 864 2540 1152 3175 1440 6400 2903
HYCS025110530 635 288 1270 576 1905 864 2540 1152 3175 1440 6400 2903
HYCS035130230 1289 584 2577 1169 3866 1753 5154 2338 6443 2922 12900 5851
HYCS035130350 1289 584 2577 1169 3866 1753 5154 2338 6443 2922 12900 5851
HYCS035130510 1289 584 2577 1169 3866 1753 5154 2338 6443 2922 12900 5851
HYCS040160260 1460 662 2921 1325 4381 1987 5841 2650 7302 3312 14600 6622
HYCS040160375 1460 662 2921 1325 4381 1987 5841 2650 7302 3312 14600 6622
HYCS040160625 1460 662 2921 1325 4381 1987 5841 2650 7302 3312 14600 6622
HYCS045160260 2098 952 4197 1904 6295 2856 8394 3807 10492 4759 21000 9525
HYCS045160375 2098 952 4197 1904 6295 2856 8394 3807 10492 4759 21000 9525
HYCS045160800 2098 952 4197 1904 6295 2856 8394 3807 10492 4759 21000 9525
HYCS055190275 3316 1504 6633 3009 9949 4513 13266 6017 16582 7522 33200 15059
HYCS055190400 3316 1504 6633 3009 9949 4513 13266 6017 16582 7522 33200 15059
HYCS055190900 3316 1504 6633 3009 9949 4513 13266 6017 16582 7522 33200 15059
HYCS065220300 4307 1954 8615 3908 12922 5861 17230 7815 21537 9769 43100 19550
HYCS065220450 4307 1954 8615 3908 12922 5861 17230 7815 21537 9769 43100 19550
HYCS065221025 4307 1954 8615 3908 12922 5861 17230 7815 21537 9769 43100 19550
HYCS075250300 6283 2850 12566 5700 18850 8550 25133 11400 31416 14250 62800 28486
HYCS075250475 6283 2850 12566 5700 18850 8550 25133 11400 31416 14250 62800 28486
HYCS075251150 6283 2850 12566 5700 18850 8550 25133 11400 31416 14250 62800 28486
HYCS080250300 6885 3123 13769 6246 20654 9368 27538 12491 34423 15614 68800 31207
HYCS080250475 6885 3123 13769 6246 20654 9368 27538 12491 34423 15614 68800 31207
HYCS080251150 6885 3123 13769 6246 20654 9368 27538 12491 34423 15614 68800 31207
HYCS090320375 8394 3807 16788 7615 25182 11422 33576 15230 41970 19037 83900 38056
HYCS090320550 8394 3807 16788 7615 25182 11422 33576 15230 41970 19037 83900 38056
HYCS100320425 11339 5143 22678 10287 34018 15430 45357 20573 56696 25717 113400 51437
HYCS100320625 11339 5143 22678 10287 34018 15430 45357 20573 56696 25717 113400 51437
HYCS115350475 14419 6541 28839 13081 43258 19622 57678 26162 72097 32703 144200 65408
HYCS115350700 14419 6541 28839 13081 43258 19622 57678 26162 72097 32703 144200 65408
HYCS130380475 18862 8556 37724 17111 56585 25667 75447 34222 94309 42778 188600 85548
HYCS130380700 18862 8556 37724 17111 56585 25667 75447 34222 94309 42778 188600 85548
HYCS145480500 23206 10526 46412 21052 69618 31578 92824 42104 116030 52630 232100 105279
HYCS145480750 23206 10526 46412 21052 69618 31578 92824 42104 116030 52630 232100 105279

*** Max relief setting is 5,000 psi / 345 bar