Mantus M2 Anchor

Mantus M2 Anchor

The best setting and holding boat anchor you can buy!

DIGS LIKE NO OTHER

The Mantus Anchor is designed to penetrate dense, grassy bottoms and set with unparalleled holding power. When tested, our anchors set faster and deeper than any other tested anchor, including Rocna, Manson Supreme, Bulwagga, Fortress, Bruce, CQR and Danforth anchors.

EASY TO STORE

The Mantus Marine anchor lineup simply has the best boat anchors available, whether you are a long-range cruiser, racing, or going out for a day sail. The Mantus quick-set anchor is stowable and breaks down for easy storage, so you can store one or two as spares without needing to take up much boat space.

BUILT STRONG

  • Formed out of high-quality steel plate. Contains no cast parts.
  • Shank and shank boot are welded from top and bottom.
  • Shank and roll bar are bolted to the fluke.
  • ASTM certified steel bolts are oversized with a large margin to ensure safety.
  • Although the shank is attached to the fluke with 4 bolts, a single bolt has sufficient strength to handle the maximum expected load on the anchor.
  • Stainless Steel anchors feature a 2205 Duplex shank and 316L stainless steel fluke. The surface is hardened by shot-peening and are then electro-polished to provide maximum corrosion resistance.
  • In the carbon steel version, every part of the anchor system is hot-dip galvanized for corrosion protection. (All shanks are HT ASTM 514 Steel and flukes are mild steel A36 equivalent)
  • Sharp-headed nose is precision machined to achieve the perfect chisel shape to achieve maximum penetrating power.

LIFETIME WARRANTY

Mantus Marine offers a lifetime warranty on its anchors (See below for details)

WHICH IS BEST? THE M1 OR THE M2?

After the release of the Mantus M2 Model, we often get the question: which one is better?  Both Anchors have an amazing setting and resetting ability and both are excellent choices for a primary anchor, but each has its own small specific advantages.  Both anchors roll over well in most bottom conditions and it is rare for a properly weighted anchor to end up upside down. Nevertheless, M1 Anchor, due to its roll bar, is better at rolling over in a really soft, silty bottom. The M2 Anchor is less likely to get plugged up with muddy weeds, and without the need for the roll bar, M2 is less bulky. Thus, the M2 model provides a better fit for boats with bow pulpits with slotted anchor housing and bow sprits.

SEE THE TESTS AND DECIDE FOR YOURSELF!

Click here to see a variety of independent tests and our own testing.

M2 Dimensions and Fit

M2 Anchor Dimensions

Mantus Anchor Templates

M2 Mantus Dimensions (Imperial) Inches

 
A
B
C
D
E
F
G
H
I
8lbs20121256101410
13lbs23141467101611
17lbs26161578101813
25lbs29181789112014
35lbs321919810212216
45lbs352120911212417
55lbs3723221011212618
65lbs3924231011212719
85lbs4327251113213021
105lbs4628271214213122
125lbs5031291315213424
155lbs5232311416313626
175lbs5534331417313827

M2 Mantus Dimensions (Metric) mm

 
A
B
C
D
E
F
G
H
I
3.6kg516317304135159259354253
5.9kg5913633481551822910406290
7.7kg6564033871722023212451322
11.4kg7314494311912253613503359
15.9kg8064954762112484014554395
20.5kg8825415202312714316606432
25.0kg9475825592482924717651464
29.5kg9946105862603064918683487
38.6kg10976746472873385419754538
47.7kg11637146863043585721799570
56.8kg12667777473313906222870621
70.5kg13328187853494106624915653
79.5kg14078648303684336925966690

Anchor Sizing

Mantus Anchor Sizing

M2 Anchors

M2 Anchor Size (Imperial)Lunch anchor for winds < 30 knotsCruising anchor for winds < 50 knotsStorm anchor for winds > 50 knotsBlade Surface Area
(inches sq)
8 lbs16-20 ft
< 3,000 lbs
0-16 ft
< 1,000 lbs
0-12 ft
< 800 lbs
63
13 lbs20-25 ft
< 5,000 lbs
16-20 ft
< 3,000 lbs
12-16 ft
< 1,000 lbs
82
17 lbs25-30 ft
< 11,000 lbs
20-25 ft
< 5,000 lbs
16-20 ft
< 3,000 lbs
102
25 lbs30-35 ft
< 15,000 lbs
25-30 ft
< 11,000 lbs
20-25 ft
< 5,000 lbs
126
35 lbs35-39 ft
< 20,000 lbs
30-35 ft
< 15,000 lbs
25-30 ft
< 11,0000 lbs
154
45 lbs39-43 ft
< 30,000 lbs
35-39 ft
< 20,000 lbs
30-35 ft
< 15,000 lbs
183
55 lbs43-45 ft
< 50,000 lbs
39-43 ft
< 30,000 lbs
35-39 ft
< 20,000 lbs
212
65 lbs45-50 ft
< 50,000 lbs
43-45 ft
< 40,000 lbs
39-43 ft
< 30,000 lbs
233
85 lbs50-60 ft
< 60,000 lbs
45-50 ft
< 50,000 lbs
43-45 ft
< 40,000 lbs
284
105 lbs60-70 ft
< 70,000 lbs
50-60 ft
< 60,000 lbs
45-50 ft
< 50,000 lbs
319
125 lbs70-80 ft
< 100,000 lbs
60-70 ft
< 70,000 lbs
50-60 ft
< 60,000 lbs
378
155 lbs80-90 ft
< 110,000 lbs
70-80 ft
< 100,000 lbs
60-70 ft
< 70,000 lbs
419
175 lbs90-100 ft
< 130,000 lbs
80-90 ft
< 110,000 lbs
70-80 ft
< 100,000 lbs
467

M2 Anchor Size (Metric)Lunch anchor for winds < 30 knotsCruising anchor for winds < 50 knotsStorm anchor for winds > 50 knotsBlade Surface Area
3.5 kg5-6 m
< 1,300 kg
0-5 m
< 460 kg
0-3.6 m
< 360 kg
405
6 kg6-7.5 m
< 2,300 kg
5-6 m
< 1,400 kg
3.6-5 m
< 460 kg
532
8 kg7.5-9 m
< 5,000 kg
6-7.5 m
< 2,300 kg
5-6 m
< 1,400 kg
656
11.4 kg9-10.6 m
< 6.800 kg
7.5-9 m
< 5,000 kg
6-7.5 m
< 2,300 kg
815
15 kg10.6-12 m
< 9,090 kg
9-10.6 m
< 6,800 kg
7.5-9 m
< 5,000 kg
991
20 kg12-13 m
< 13,600 kg
10.6-12 m
< 9,090 kg
9-10.6 m
< 6,800 kg
1183
25 kg13-13.5 m
< 23,000 kg
12-13 m
< 13,600 kg
10.6-12 m
< 9,090 kg
1366
30 kg13.5-15.2 m
< 23,000 kg
13-13.5 m
< 18,200 kg
12-13 m
< 13,600 kg
1505
39 kg15.2-18.2 m
< 27,000 kg
13.5-15.2 m
< 23,000 kg
13-13.5 m
< 18,200 kg
1834
48 kg18.2-21.2 m
< 32,000 kg
15.2-21.2 m
< 27,000 kg
13.5-15.2 m
< 23,000 kg
2059
57 kg21.2-24.2 m
< 45,500 kg
18.2-21.2 m
< 32,500 kg
15.2-18.2 m
< 23,000 kg
2441
70 kg24.2-27.3 m
< 50,000 kg
21.2-24.2 m
< 45,500 kg
18.2-21.2 m
< 32,500 kg
2701
80 kg27.3-30.3 m
< 59,000 kg
24.2-27.3 m
< 50,000 kg
21.2-24.2 m
< 45,500 kg
3014

Anchor Sizing Guide

When making sizing recommendations for a working anchor we are generally referring to the needs of a cruising boat spending most of its time on anchor.

In doing so we try to envelope high sustained winds (50 kts) and assume poor holding conditions (low viscosity bottoms).

Some may think these recommendations to be too conservative especially when compared to sizing tables from other manufacturers.

However, companies often make claims of superior anchor efficiency, stating that their small anchor X will outperform a much heavier anchor from their competitors and often use sizing charts as a marketing tool to that end – even recommending anchors and anchor systems that are dangerously undersized for their intended use.

Comparing surface area can be a good judge for potential holding capability.

Our anchor sizing recommendations are presented in the table below and divided in three categories:

  • Lunch Anchor category is recommended for lighter use, expected winds under 30 knots
  • Working anchor for winds under 50 knots
  • Storm anchor recommendations are intended for winds above 50 knots.

These recommendations are all made assuming the worst-case scenario, a poor holding bottom and therefore may seem conservative but we believe are accurate.

M2 Anchor Assembly Details

Bolts, Washers and Nuts are provided with every Mantus Anchor.

In the event of replacing a lost fastener, please make sure to always use proper size.

Always use locking washers, or nylon lock nuts, and tighten the nut securely.

M2 Assembly Guide

M2 Anchor Assembly

Click here for an assembly video guide of the M2 anchor.

 

 

Warranty and Returns Policy
Tempest Trimarans Ltd stands by the Mantus lifetime warranty on all of its products and components against damage and manufacturing defects.

This is a genuine LIFETIME guarantee and if you are dissatisfied with any Mantus product at any time we will give you a replacement or refund.

With the anchors we will give you a replacement part – for example a roll-bar, fluke or shank.

Exceptions

  • We will not normally replace the bridle line which will slowly degrade in normal use as would any other bridle line
  • The galvanised coating on the anchor carries a 3 year warranty

In the first instance please contact us via [email protected] explaining the problem and giving your contact details and we will get in touch to resolve it with you.

Contact us

[email protected]

or call

+44 (0)7863 403462

or chat with us now bottom right!

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