Subsea Spherical and Ellipsoidal Buoys

Subsea Spherical and Ellipsoidal Buoys

Subsea spherical and ellipsoidal buoys, providing long term, stable buoyancy to arrays of underwater equipment. With a full line of buoyancy solutions ranging from 100 meters to 6,000 meter water depths, these buoys are available in numerous sizes and shapes to ensure successful deployment and recovery during mooring expeditions.

With two geometries available, spherical or ellipsoidal, the buoys are low maintenance and extremely rugged to meet the harsh demands of both deepwater and coastal environments. Elliptical buoys are preferred for high current environments when low drag is necessary. Trelleborg's spherical and ellipsoidal buoys are fully able to integrate as a key component in mooring systems.

Trelleborg’s established subsea buoys are manufactured from our proven HDPE (high density poly-ethylene) rotomolded shells, and filled with our in house microsphere and macrosphere fill system. Each subsea buoy is fully customizable for complete design freedom, to accommodate any size, uplift, structural components, or housing equipment needed within the float.

100 to 6,000 meter depth rated

Spherical or low drag ellipsoidal geometries

Custom through holes

Low maintenance

Key Applications

Oceanographic mooring

Subsurface mooring

Acoustic Doppler Current Profiler (ADCP)

Fixed installation

Gallery

View Subsea Spherical and Ellipsoidal Buoys

Buoy Fill - Standard

Reference table to illustrate depth of application, diameter of the buoy and the uplift it provides.

Depth (m) Diameter Uplift (lbs)
300

16" Buoy, 1" hole

43

300  30" Buoy, 1" hole
334 
300  16" Buoy, 11" hole
264 
300  33" Buoy, 1" hole
244 
300  35" Buoy, 1" hole
531
300 35" Buoy, 11"; 4" hole
437 
300 47" Buoy, 1" hole
1,293
300 47" Buoy, 11" hole
1,194
300 65" Buoy, 1" hole
3,418
300 65" Buoy, 11" hole
3,282
500 35" Buoy, 1" hole
508
500 35" Buoy, 11"; 4" hole
427 
500 47" Buoy, 11" hole
1,143
1,000 16" Buoy, 1" hole
37
1,000 30" Buoy, 1" hole
294
1,000 30" Buoy, 1", 3", 4" hole
271
1,000 30" Buoy, 11" hole
233
1,000 30" Buoy, 11"; 4" hole
227
1,000 33" Buoy, 1" hole
218
1,000 33" Buoy, 1", 2.5" hole
184
1,000 33" Buoy, 10" hole
186
1,000 33" Buoy, 10"; (2)-4" hole
169
1,000  33" Buoy, 10"; (4)-6" hole
144
1,000 33" Buoy, 10"; (2)-6" hole
160
1,000  35" Buoy, 1" hole
463
1,000 35" Buoy, 11" hole  396



Depth (m) Diameter Uplift (lbs)
1,000 47" Buoy, 1" hole
1,148
1,000 47" Buoy, 11" hole
1,053
1,000 47" Buoy, 11"; 1.5" hole
813
1,000 65" Buoy, 1" hole
3,008
1,000 65" Buoy, 1"; 2"; 11" hole
2,890
1,000 65" Buoy, 2" hole
2,986
1,000 65" Buoy, 11" hole
2,893
1,500 17" Buoy, 1" hole
32
1,500 30" Buoy, 1" hole
257
1,500 30" Buoy, 11" hole
208
1,500 33" Buoy, 1" hole
188
1,500 33" Buoy, 11" hole
159
1,500 35" Buoy, 1" hole
410
1,500 35" Buoy, 11" hole
351
1,500 47" Buoy, 1" hole
885
1,500 47" Buoy, 11" hole
813
1,500 65" Buoy, 1" hole
2,629
1,500 65" Buoy, 2" hole
2,626
1,500 65" Buoy, 11" hole
2,532
2,000 16" Buoy, 1" hole
28
2,000 20" Buoy
60
2,000 24" Buoy 112
2,000 30" Buoy, 1" hole
229
2,000 30" Buoy, 11" hole
185
2,000 30" Buoy, 11"; 4" hole
181 
2,000 33" Buoy, 10" hole
135
Depth (m) Diameter Uplift (lbs)
2,000 33" Buoy, 10"; 2"; 3" hole
135
2,000 35" Buoy, 1" hole
359
2,000 35" Buoy, 11" hole
305
2,000 35" Buoy, 11"; 1.5" hole
305
2,000 47" Buoy, 1" hole
893
2,000 47" Buoy, 11" hole
830
2,000 47" Buoy, 11"; 1.5" hole
821
2,000 65" Buoy, 1" hole
2,335
2,000 65" Buoy, 2" hole
2,334
2,000 65" Buoy, 11" hole
2,209
3,000 16" Buoy, 1" hole
20
3,000 20" Buoy, 1" hole
48
3,000 30" Buoy, 1" hole
159
3,000 30" Buoy, 11" hole
126
3,000 33" Buoy, 1" hole
157
3,000 33" Buoy, 10" hole
133
3,000 35" Buoy, 1" hole
277
3,000 35" Buoy, 11" hole
238
3,000 47" Buoy, 1" hole
673
3,000 47" Buoy, 11" hole
679
3,000 65" Buoy, 1" hole
1,788
3,000 65" Buoy, 11" hole
1,690
4,000 35" Buoy, 1" hole
227
4,000 65" Buoy, 1" hole
1,464
5,000 65" Buoy, 1" hole
1,298 
35" Buoy, 1" hole
35" Buoy, 1" hole

Buoy Fill - Carbon

Reference table to illustrate depth of application, diameter of the buoy and the uplift it provides.

Depth (m) Diameter Uplift (lbs)

300

16" Buoy, 1" hole

45

300 30" Buoy, 1" hole
348
300 30" Buoy, 11" hole
278
300 33" Buoy, 1" hole
254
300 33" Buoy, 10" hole
203
300 35" Buoy, 1" hole
553
300 35" Buoy, 11" hole
465
300 47" Buoy, 1" hole
1,349
300 47" Buoy, 11" hole
1,244
300 65" Buoy, 1" hole
3,565
300 65" Buoy, 11" hole
3,421
1,000  16" Buoy, 1" hole
40
1,000 30" Buoy, 1" hole
313
1,000 30" Buoy, 11" hole
252
1,000 33" Buoy, 1" hole
232
1,000 33" Buoy, 10" hole
197
1,000 35" Buoy, 1" hole
493
1,000 35" Buoy, 11" hole
421
1,000 47" Buoy, 1" hole
1,222
Depth (m) Diameter Uplift (lbs)

1,000

47" Buoy, 11" hole

1,130

1,000 65" Buoy, 1" hole
3,205
1,000 65" Buoy, 11" hole
3,079
1,500 16" Buoy, 1" hole
37
1,500 30" Buoy, 1" hole
291
1,500 30" Buoy, 11" hole
234
1,500 33" Buoy, 1" hole
213
1,500 33" Buoy, 1" hole
179
1,500 35" Buoy, 1" hole
463
1,500 35" Buoy, 11" hole
396
1,500 47" Buoy, 1" hole
1,015
1,500 47" Buoy, 11" hole
931
1,500 65" Buoy, 1" hole
2,973
1,500 65" Buoy, 11" hole
2,859
2,000 16" Buoy, 1" hole
35
2,000  30" Buoy, 1" hole
281
2,000 30" Buoy, 11" hole
227
2,000 33" Buoy, 1" hole
206
2,000 33" Buoy, 10" hole
174
Depth (m) Diameter Uplift (lbs)

2,000

35" Buoy, 1" hole

442

2,000 35" Buoy, 11" hole
378
2,000 47" Buoy, 1" hole
1,098
2,000 47" Buoy, (2) 1" hole
911
2,000 47" Buoy, 11" hole
1,017
2,000 65" Buoy, 1" hole
2,874
2,000 65" Buoy, 11" hole
2,766
3,000 16" Buoy, 1" hole
28
3,000 30" Buoy, 1" hole
216
3,000 30" Buoy, 11" hole
172
3,000 33" Buoy, 1" hole
164
3,000 33" Buoy, 10" hole
139
3,000 35" Buoy, 1" hole
267
3,000 35" Buoy, 11" hole
314
3,000 47" Buoy, 1" hole
895
3,000 47" Buoy, 11" hole
886
3,000 65" Buoy, 1" hole
2,475
3,000 65" Buoy, 11" hole
2,392
product sheet
Trelleborg Subsea mooring buoys

Subsea Spherical and Ellipsoidal Buoy

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