The Mantus Anchor

M1 Mantus Anchors

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 taking up much needed 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. Bolt Details.
  • Stainless Steel anchors feature a 2205 Duplex shank and 316L stainless steel fluke. The surface is hardened by shot-peening and then electro-polished to provide maximum corrosion resistance.
  • In the carbon steel version every part of the anchor system is hot-dipped 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.

LIFE TIME WARRANTY Mantus Anchors offers a lifetime warranty on its anchors *see Warranty section for details.


Machined chisel nose is optimized for best penetration

Shank/Fluke Bolted Joint: Four Grade-5 bolts, Each stronger than the appropriate size chain.

Ear tabs: increase the angle of attack, and thus pressure on the nose for better sea bed penetration.

Shank: Uses Hi Test Steel, Yield Strength 690 Mpa. Shank is inserted into the shank boot and then is welded from above and below.

Fluke: Concave shaped used for the fluke provides the maximum resistance to movement.

Retrieval Hole: Used to rig emergency retrieval line or tandem anchor set up.

 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 rollbar 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.

Mantus Anchor Details

Mantus Anchor Sizing

DIMENSIONS AND FIT

DIMENSIONS

M1 ANCHOR DIMENSIONS

M1 MODEL DIMENSIONS (IMPERIAL)
ABCDEFGHIJ
2.5 lbs1710.211.84.03.20.80.39.36.14.1
8 lbs2213.015.15.14.11.00.411.97.95.3
13 lbs2615.918.46.25.01.20.414.59.66.5
17 lbs2917.520.46.95.51.30.516.010.67.1
25 lbs3119.022.07.45.91.50.517.311.47.7
35 lbs3521.124.58.36.61.60.619.312.78.6
45 lbs3923.727.59.37.41.80.721.614.39.6
55 lbs4225.429.410.07.91.90.723.215.310.3
65 lbs4527.031.410.68.42.10.724.716.311.0
85 lbs4728.733.311.39.02.20.826.217.311.7
105 lbs5131.136.012.29.72.40.928.318.712.6
125 lbs5533.438.813.110.42.60.930.520.113.6
155 lbs6337.944.014.911.82.91.034.622.915.4
175 lbs6740.547.012.73.11.137.024.416.5

 

 

M1 MODEL DIMENSIONS (METRIC)
ABCDEFGHIJ
1.1 kg42725930010281207236156105
3.6   kg546331384130103259302200135
5.9   kg6664034681581263111368243164
7.7   kg7354465171751393412407269181
11.4 kg7954825591891503713440290196
15.9 kg8845366222101674115489323218
20.5 kg9936026992361884617550363245
25.0 kg10636447472532014918588388262
29.5 kg11326877962692145319627414279
38.6 kg12027298452862275620665439296
47.7 kg13017899153092466122720475321
56.8 kg14018499853332656523775512345
70.5 kg158996411183783017426879581392
79.5 kg1699103011944043217928940621419

Metric Sizing Guide (click to enlarge)

Mantus Anchor Metric Recommendations

Imperial Sizing Guide (click to enlarge)

Mantus Anchor Imperial Recommendations

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. 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, 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 and finally, storm anchor recommendations are intended for winds above 50 knots. These recommendations are made assuming the worst-case scenario, a poor holding bottom and thus may seem conservative but we believe are accurate.

 

ANCHOR SIZING GUIDE

Use the following guide to determine what size of anchor to use:

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 (40 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. 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, 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 we divided in three categories: Lunch Anchor category is recommended for lighter use, expected winds under 25 knots, working anchor for winds under 40 knots and finally, storm anchor recommendations are intended for winds up to 60 knots. These recommendations are made assuming the worst-case scenario, a poor holding bottom and thus may seem conservative but we believe are accurate.

OUR WARRANTY


Mantus anchors are covered by a LIFETIME warranty. If at any time you are dissatisfied with our product, please contact us for a replacement or refund. If an anchor becomes damaged we will ship a replacement part – shank, fluke or roll-bar. (Only exception is the galvanized coating on the anchors, it carries a 3-year warranty)

CONSTRUCTION GUIDE

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.

Click here to download a printable pdf of the assembly instructions.

Mantus Anchor Assembly Instructions

Mantus 17 lbs3/86 bolts, nuts, lock washers

Anchor Size
Bolt sizes
Number of Bolts
Mantus 8 lbs1/46 bolts, nuts, lock washers
Mantus 13 lbs3/86 bolts, nuts, lock washers
Mantus 25 lbs3/86 bolts, nuts, lock washers
Mantus 35 lbs1/26 bolts, nuts, lock washers
Mantus 45 lbs1/26 bolts, nuts, lock washers
Mantus 55 lbs5/86 bolts, nuts, lock washers
Mantus 65 lbs5/86 bolts, nuts, lock washers
Mantus 85 lbs5/86 bolts, nuts, lock washers
Mantus 105 lbs3/46 bolts, nuts, lock washers
Mantus 125 lbs3/46 bolts, nuts, lock washers
Mantus 155 lbs3/46 bolts, nuts, lock washers
Mantus 175 lbs3/46 bolts, nuts, lock washers

RETURN POLICY

We stand by our product and offer a no questions asked return policy if you find that your anchor does not work as advertised. Follow the link below for more information on returns.

RETURNS

CALL US WITH ANY QUESTIONS:
WITHIN THE US: 1-855-262-6887
BEYOND THE US: 469-226-3468 / 469-878-4083

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