The Original Rocna Anchor
Introduction:
The original Rocna anchor was designed by New Zealand sailor Peter Smith. Among all the anchor types, the concave anchor claw has greater resistance. The sharp anchor claw of the Rocna anchor can penetrate even on the harder seabed. For Rocna anchors, all sizes that we can provide can be made of stainless steel or hot-dip galvanized.
Drawings of the Original Rocna Anchor for Reference:
Main Model of the Original Rocna Anchor:
Form 1-1:
|
Model |
Weight |
Fluke area |
A |
B |
C |
|||||
|
kg |
lb |
cm² |
in² |
mm |
inch |
mm |
inch |
mm |
inch |
|
|
4 |
4 |
9 |
460 |
71 |
547 |
21.5 |
234 |
9.2 |
154 |
6.1 |
|
6 |
6 |
13 |
590 |
91 |
630 |
24.8 |
270 |
10.6 |
170 |
6.7 |
|
10 |
10 |
22 |
795 |
123 |
724 |
28.5 |
312 |
12.3 |
204 |
8.0 |
|
15 |
15 |
33 |
1030 |
160 |
830 |
32.7 |
360 |
14.2 |
235 |
9.3 |
|
20 |
20 |
44 |
1140 |
177 |
864 |
34.0 |
373 |
14.7 |
244 |
9.6 |
|
25 |
25 |
55 |
1415 |
219 |
971 |
38.2 |
420 |
16.5 |
275 |
10.8 |
|
33 |
33 |
73 |
1695 |
263 |
1066 |
42.0 |
485 |
19.1 |
280 |
11.0 |
|
40 |
40 |
88 |
1945 |
301 |
1142 |
45.0 |
520 |
20.5 |
300 |
11.8 |
|
55 |
55 |
121 |
2300 |
357 |
1235 |
48.6 |
560 |
22.0 |
323 |
12.7 |
|
70 |
70 |
154 |
2690 |
417 |
1338 |
52.7 |
607 |
23.9 |
354 |
13.9 |
|
110 |
110 |
243 |
3330 |
516 |
1490 |
58.7 |
675 |
26.6 |
390 |
15.4 |
|
150 |
150 |
331 |
4630 |
718 |
1725 |
67.9 |
779 |
30.7 |
449 |
17.7 |
|
200 |
200 |
441 |
5905 |
915 |
1901 |
74.8 |
859 |
33.8 |
494 |
19.4 |
|
275 |
275 |
606 |
6690 |
1037 |
2143 |
84.4 |
967 |
38.1 |
558 |
22.0 |
Form 1-2:
Model
D
E
F
S
Width
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
4
133
5.2
96
3.8
103
4.1
75
3.0
275
10.8
6
150
5.9
102
4.0
123
4.8
80
3.1
315
12.4
10
174
6.9
130
5.1
133
5.2
90
3.5
365
14.4
15
205
8.1
145
5.7
156
6.1
100
3.9
415
16.3
20
220
8.7
162
6.4
158
6.2
110
4.3
435
17.1
25
233
9.2
175
6.9
184
7.2
115
4.5
485
19.1
33
254
10.0
180
7.1
206
8.1
120
4.7
532
20.9
40
278
10.9
188
7.4
224
8.8
130
5.1
570
22.4
55
306
12.0
225
8.9
226
8.9
150
5.9
620
24.4
70
330
13.0
240
9.4
250
9.8
155
6.1
670
26.4
110
352
13.9
265
10.4
286
11.3
180
7.1
745
29.3
150
416
16.4
318
12.5
317
12.5
203
8.0
867
34.1
200
462
18.2
349
13.7
351
13.8
224
8.8
953
37.5
275
517
20.4
394
15.5
394
15.5
253
10.0
1049
41.3
The drawing and parameters are just for reference, please contact us to customize the anchor you need.
Picture of Stainless Steel Original Rocna Anchor:
Main Stainless Steel Chemical Compositions:
Model
M
Mn
max
P
max
Si
max
Cr
Ni
Mo
304
0.08
2.0
0.045
1.0
18~20
8~12
/
304L
0.03
2.0
0.045
1.0
18~20
8~12
/
316
0.08
2.0
0.045
1.0
16~18
10~14
2~3
316L
0.03
2.0
0.045
1.0
16~18
10~14
2~3
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