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steer trailer

Discussion in 'Trailers' started by bigblueox, Sep 10, 2008.

  1. bigblueox

    bigblueox Senior Member

    Joined:
    Jun 1, 2007
    Messages:
    348
    Location:
    virginia
  2. Kgmz

    Kgmz Senior Member

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    Mar 21, 2007
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    Occupation:
    General Contractor
    Location:
    Portland, OR & Eatonville, WA
  3. Dualie

    Dualie Senior Member

    Joined:
    Feb 24, 2007
    Messages:
    1,371
    Location:
    Nor Cal
    Not legal for sale in the usa. you would have a hell of a time getting all that dot 'ed and approved for road transit.

    I have tried for years to get that innovation going here. Weight and added complexity are the main down falls along with bridge weights and a number of other problems. I would love to have one of those to stable next to my Murray.

    the self steering feature could really get a swift driver into the doo doo quickly.
     
  4. bigblueox

    bigblueox Senior Member

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    Location:
    virginia
    so i take it that nobody makes on state side?
     
  5. 9Axle

    9Axle Well-Known Member

    Joined:
    Apr 20, 2007
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    73
    Occupation:
    heavy haul driver 9axle
    Location:
    yuba city ca
    poor swift driver:idontgetit but its true
     
  6. Chaz Murray

    Chaz Murray Well-Known Member

    Joined:
    Oct 26, 2007
    Messages:
    215
    Location:
    Stockton CA
    the only thing really not legal about it if it is running the supersingles then the state of california will not allow overweight on it with it being on a trailer. On the tractor is no problem....why I really dont know :beatsme:beatsme...when we first designed the M2000 booster 9 axle, axles 6 and 7 were going to run 8supersingles so then we did not need to build it to expand to 11' wide...but california would never approve it for overweight...:beatsme.

    As for the steering on that trailer I do not see why it would not be legal...there are Blade trailers built by IST http://www.isttrailers.com/blade-trailer.cfm that have stearable axles on it...but it is not automatic. Our steer able trailer does not steer at the wheel ends but steers on a turn table with the whole group of axles...I dont see how that would be any different legaly than with a steering smaller trailer.
     
  7. 45LMSWM

    45LMSWM New Member

    Joined:
    Sep 13, 2008
    Messages:
    4
    Occupation:
    lowboy driver
    Location:
    New Jersey
    This type of trailer is absolutely legal here in New Jersey, and elsewhere in the U.S. Maybe not specifically in your state, that I don't know. There are tons of companies running auto-steering HSPTs and I have seen more than a few Aspen and other makes of steerable trailers for moving wind mill blades. There are also a few heavy hauling companies running Notteboom steerable step deck trailers in the US as well.


    John Pearson
     
  8. LowBoy

    LowBoy Senior Member

    Joined:
    Nov 23, 2006
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    Occupation:
    Owner, Iron Mountain Iron & Equipment (Transport)
    Location:
    Southern Vt. on the Mass./NH borders


    SWIFT: Sure Wish I Finished Training

    See What I Flubbed up Today:naughty
     
  9. MKTEF

    MKTEF Senior Member

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    Occupation:
    Production manager
    Location:
    Norway
    To get the maximum length and weight on the roads here around u need one or two stearable axles on your trailers.:)

    Stearing can then be made with three designs:
    - Friction stearing, where the wheels stear by the force when u turn. Theese got a lock that u engage when reversing.(theese are most common)
    - Stearing by a spesial system around your kingpin.(kingpin has a second pin at the back, so truck and kingpin is not turning) It has a rollerbearing on top of the kingpinplate that turns when u turn the trailer. Then there is a hydraulic sylinder connected between the kingpinplate and the frame. This gives u a hydraulic system that produse force to the stearing sylinders on the axles.
    - Electronic kingpin that gives a signal to a electronic brain that desides how much the axles should stear.

    Most of the last two also got a lever in the cab making it possible to stear the wheels manualy.;)
    Some producers also got a system where u need to charge the hydraulic acumulators that power the stearing once a week.(Goldhofer)

    Added a pic of a 10 axle Goldhofer with extension, 106t payload.(212 000lbs)
    Goldhofer even got axles with 45degree stearing angle...;)
     

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    Last edited: Sep 13, 2008
  10. bigblueox

    bigblueox Senior Member

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    Location:
    virginia
    wow thanks! i wonder how much one of those will set me back?!
     
  11. RKO

    RKO Well-Known Member

    Joined:
    Jul 22, 2007
    Messages:
    181
    Location:
    NE.
    They may not be legal in Ca. (I don't know). But the Midwest states they are legal. There is several Companies with Beam and blade trailers that are auto steer. The auto steer only works under a certain speed.
     
  12. toyman

    toyman Active Member

    Joined:
    Mar 9, 2008
    Messages:
    32
    Occupation:
    Owner of Excavating Company
    Location:
    Dimondale, MI
    I have seen a few Military trailers that have steering axles under them. Usually see them in the summer months. Pretty wild looking contraptions, 5 to 8 axles. The trucks that tow them aren't exactly typical looking either.

    I will get some pictures next time I see one out and about. Here's a couple from Oshkosh website.

    Toyman
     

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  13. oversize

    oversize Well-Known Member

    Joined:
    Feb 8, 2009
    Messages:
    125
    Occupation:
    low loader driver
    Location:
    Queenlsand AUST
    Here is A pic of my trailer which has self steering fitted on the rear to axles, Must be locked when backing up it is made by a company over here called drake here is link to there web site http://www.draketrailers.com/ have a look in the trailer range page and check out some of there 12 and 16 rows of 8 trailers with steering on ever axle

    here is pic of the trailer i run
     

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