The newly developed multi-point contact principle of the Big-T chain allows the effective contact area to be increased by distributing the contact zone uniformly over the entire zone between the two points. Contact pressure, and hence chain wear, is therefore significantly reduced.
The vertical link is also broader and flatter in design. This increase in width creates a much larger wearing surface and provides increased wear resistance, so that the overall wear behaviour of the chain is very much improved.
The flatter design of this chain – which is even flatter than the super-flat chain – makes it suitable for use on extremely compact conveyors (for low-seam applications*), or produces an extremely strong and durable chain for a given pan profile.
Heavy Duty Flat Type Chains according to THIELE standards
The round links have a flattened profile where they engage with the bottom of the chain pockets. This greatly improves the wear behaviour of the chain on the sprocket.
The leg diameter d1 is much smaller than the nominal diameter d – without any loss in chain performance. The benefits include a 15% saving in weight at the round link and a larger volume of material at the critical flight-bar profile, which significantly increases the stiffness and breaking force of the flight bar.
In spite of the broader contact face the smaller d1 value means that the round link is also narrower than that of a standard chain. The chain centre-to-centre spacing therefore remains unaltered, in spite of the larger nominal size.
|d x t [mm]||d||t1||t2||FS||e max.||e max.||b1 min.||b2 max.||b3 min.||b4 max.||[kg/m]|
|34x121/131||34||± 0,9||121||± 1,3||131||± 1,3||75||40||30,5||± 0,8||45||109||38||84,1||20,2|
|42x140/152||42||± 1,1||140||± 1,5||152||± 1,5||83||56,1||37,8||± 1,1||67||148||45,1||99,1||34,1|
|48x144/158||48||± 1,5||144||± 1,5||158||± 1,6||81||55||40||± 1,1||64||149||54,3||109||38,7|
|52x156/171||52||± 1,6||156||± 1,6||171||± 1,7||87||59||43||± 1,3||69,5||161||58,3||118||45,5|
|56x168/184||56||± 1,7||168||± 1,7||184||± 1,8||94||64||47||± 1,5||75||173||62,3||126||52,8|
|60x181/197||60||± 1,9||181||± 1,8||197||± 2,0||100||68||50||± 1,6||80||185||66,3||135||61,0|
|Technical specifications subject to change|
Mechanical Properties THD
|Chainsize||Article No.||Test Force||Elongation|
|d x t [mm]||TEC||kN||% max.||kN min.||%||[mm]|
|the above values apply to chains in \"natural black\" condition (nsw) / Technical specifications subject to change|