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Flotation Machine

Hull Flotation Foam Question Boat Design Forums

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Production capacity : 0.18-20m³/min

Product Series : XJK,SF,JJF Serie

The flotation machine is driven by V-belt drive motor rotating impeller to create negative pressure by centrifugal vacuum. The flotation cell is a very important part of the flotation machine.


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  • Alum hull designleak containment question

    Alum hull designleak containment question

    2010-1-9alum hull designleak containment question ... however a boat may contain sealed compartments or globs of foam for flotation boats 19 feet and smaller are required to have level flotation which means that if the boat swamps it will stay afloat in...

  • Aluminum boat flotation foam

    Aluminum boat flotation foam

    2008-6-9especially a boat with a jon boat design i would mount the trolling motor to the back of the boat and back troll fish. due to the design you really cant put much weight in this kind of boat and foam will only help when it starts to sink. see if...

  • Another flooring a jon boat question | page 2

    Another flooring a jon boat question | page 2

    2007-12-11another flooring a jon boat question discussion in boat modification journal started by smhmc6 nov 12 2007. page 2 of 3 ... my father built and design fiberglass boats for over 30 years. i spent 7 years working at a fiberglass production and r...

  • Boat repair forum

    Boat repair forum

    Marineengine.com boat forum for do it yourself boat repair. get boat repair tips and answers to boat engine problems. give and get help on boat motor repair and marine engine maintenance for outboard motors inboards sterndrives gas and diesel marine en...

  • Boston whaler question

    Boston whaler question

    2010-4-15this is a minimum requirement. what whaler originated and others such as mckee craft and edgewater have copied is a construction method which does not use the traditional stringer in the hull of the boat. instead the inner and outer hulls are com...

  • Build quality....

    Build quality....

    2020-2-23they also offer positive flotation foam injection that many in this price range dont. taking all this into account i dont believe anyone in the mid tier market sells a significantly better product. it really comes down to layout and hull performa...

  • Building a boat

    Building a boat

    Page 1 of 3 - building a boat - posted in engineering and applied science i have a friend that is looking to build his own boat. his basic concept is a two person pedal boat that is capable of calm sea travel. here are some of his plans the boat is to be...

  • Crestlinerboat draining questionhelp

    Crestlinerboat draining questionhelp

    2017-7-31you have two part spray in foam under the floor like all aluminum boats. the boat builders put it in to meet flotation regulations. the bad part is after is drilling holes for seats and other items water can enter under the floor. once the foam...

  • Double hull plastic jon boat

    Double hull plastic jon boat

    2018-8-23i have a basshound 10.2 which is a 10 ft tri-hull plastic boat. the floor is separate from the hull and it has an inner foam. the thing is extremely stable and i even built a casting deck for it and mounted a foot controlled trolling motor to mak...

  • Duckboats.net main forums duck boathunting

    Duckboats.net main forums duck boathunting

    2010-4-28so if you have 3 flotation compartment in the boat you built than you have 3 places were you will have root from what you are saying. there is no way water can get to the compartment under the floor. i have replaced foam in a few boats that were...

  • Duckboats.net main forums duck boathunting

    Duckboats.net main forums duck boathunting

    2017-8-292. foam flotation. two aft inspection covers indicate entire hull foam filled until last few inches from transom. someone had complained about foam placement 3.rough water. any boat with a hard cover above the gunnels has potential to capsize onc...

  • Floatation foam

    Floatation foam

    2020-4-4it doesnt really matter the size here as long and you get the required 600 pounds of boyancy needed by the boats design. the boat weights around 850 pounds minus the 600 for the flotation blocks which leaves 250 pounds of boyancy needed to float...

  • Flotation in your boat

    Flotation in your boat

    2014-4-22the regulation is for level flotation upright to a certain hull length. boat manufacturers do use or are supposed to use a close cell foam that absorbs very little water by design. over time maybe it becomes compromised i dont know but i want...

  • Foam filling to where

    Foam filling to where

    2013-12-4good question and thanks for asking. you are quite correct that the foam does add to the solid feel and thump in that bang test but the primary reason for foam in our boats is not the strength it adds or that solid feel but rather for flotatio...

  • Hull extensions

    Hull extensions

    2008-11-9as for the swim platform etc the design we came up with was pretty much a straight rip-off from what manta did when they made the manta 40 a manta 42. it isnt quite the same style as the seawind folks went for when they extended the entire exte...

  • Jet boat options

    Jet boat options

    2018-11-19yes that is also what i have remembered. one could go all the way to the river jet topic to find out happy reading as you open the hatch of the model you should clearly see resin is added to the transom on the inside of the boat to make the...

  • Mud motor question | page 2

    Mud motor question | page 2

    2017-1-10mud motor question discussion in michiganwaterfowl.com started by big zap jan 6 2017. page 2 of 5 prev 1 2 3 ... i assume the boat has flotation foam in it if so the foam has been known to get water logged and weight down the boat badly. ... t...

  • Parker boats

    Parker boats

    2015-10-4the boat was much larger inside than a montauk very clean and simple and had a little woodwork to set it apart from the modern boats. a few weeks earlier i was in montauk ny and talked with a couple of parker owners at the dock. they both ra...

  • Polyurethane vs polystyrene in hulls

    Polyurethane vs polystyrene in hulls

    Foam and weight add expense to the build. there is something like 7800lbs of foam flotation on the 23 hull - overkill and about 800 worth of foam. maybe we should make it an option wouldnt make sense to spend more time effort and money to make a heavier...

  • Pontoon houseboat floatation

    Pontoon houseboat floatation

    Reply - answer well ron welcome to the houseboat forums and congratulations on asking a great question about pontoon floatation. as you are probably aware one of the advantages that pontoons have over a tradition hull design is that they can have eithe...

  • Question about cm build plans...

    Question about cm build plans...

    2019-7-18flotation foam is required on all builds to be compliant. fiberglass will not float so foam needs to be added. but remember this entire boat is foam and will not go to the bottom if swamped. at least i think this would be the case but i would th...

  • Ribbing and foam question

    Ribbing and foam question

    2016-7-28i used the 2 part urethane foam in my 1436 build but i did not line the cavities with anything so the foam is quasi-attached to the hull i intentionally didnt cleansand etc. the paint and now most of the visible foam has separated from the boat...

  • Sawfish an unsinkable lightweight foam kayak 23

    Sawfish an unsinkable lightweight foam kayak 23

    Sawfish an unsinkable lightweight foam kayak 23 lbs. free diy kayak plans the hardware store boat do you really want a kayak want one so bad you can taste it but cant afford one or think you dont have the skills to build one then i have a few questi...

  • Set up for ri237 release

    Set up for ri237 release

    2015-8-14my question is regarding the need to replace the foam. like you i have several hundred pounds of saturated foam removed and i am not certain to replace it or leave it without foam. do you are anyone know if the foam is necessary for any structura...



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