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Flat Type Chains / DUALINK-Chains

Flat Type Chains / DUALINK-Chains

 

THIELE introduced another innovative product to the mining industry by inventing the flat-type chain in 1985. A flat-type chain is a round-link steel chain in which every second link – the vertical link – has flattened shanks so that the overall height of the chain can be reduced.


This means that a chain conveyor can be upgraded to the next chain size with the matching standard sprocket.


THIELE Flat Type links can be produced by either welding and pressing or by forging (see DUALINK chains).


Several years ago THIELE took things a step further by developing its range of Super Flat Chains that again allow a chain conveyor to be upgraded from a Flat Type Chain to the next Super Flat Chain size, while retaining the standard sprocket. Some dimensions of THIELE’s range of Flat Type and DUALINK chains differ to DIN 22255, but represent long year practice / experience.


Flat type chains are chains with flattened vertical links (mainly welded). They are used, when the lift profile does not allow the use of round link chains with equal rated size.

 

THIELE manufactures in sizes of 26 to 48 mm.

 
» THD - THIELE Heavy Duty (TWN 0102/1)
Heavy Duty Flat Type Chains according to THIELE standards (TWN)

» TSC - THIELE Super Crown (TWN 0026/1)
special crown wear resistant; less wear in the crown areas

» TSD - THIELE Super Duty (TWN 0025/1)
for highest working conditions in all conveyors

» TIP - THIELE Improved Performance
developed for use on high-performance coal faces

		
We also produce combi chains consisting of forged and welded links.
 
Combi-chains comprise:
 
    • Dualink - Chains
    • Rhinoride - Chains
    • Dynatrac - Chains
    • Compact-lean-Chains
 

THD-Flat type chains / DUALINK®-Chains


Most of the world’s face conveyors now use Flat Type/DUALINK® Chains from the THD range.


THIELE offers the following types of corrosion protection for THD Flat Type/DUALINK® Chains, depending on underground conditions and storage times:

a) Tectyl dipped (TEC) – for short storage times and good conditions

b) Hot-dip galvanised (TZN) – for longer storage times and corrosive operating conditions


Mechanical Properties

ChainsizeDiameterPitchThick-
ness
Inside Width
Roundlink
Outside Width
Roundlink
Inside Width
Flatlink
Outside Width
Flatlink
Weight
d x t [mm]dte max.b1 min.b2 max.b3 min.b4 max.[kg/m]
  24 x 86**    24    ± 0,7    86    ± 0,9    29    31    81    28    64    11,5  
  26 x 92*    26    ± 0,8    92    ± 0,9    30    31    85    29    75    13,7  
  30 x 108    30    ± 0,9    108    ± 1,1    34    34,5    98    33    87    18,0  
  34 x 126*    34    ± 1,0    126    ± 1,3    38    39    109    37    98    22,7  
  38 x 126*    38    ± 1,1    126    ± 1,3    42    41    121    41    110    30,1  
  38 x 137    38    ± 1,1    137    ± 1,4    42    41    121    41    110    29,0  
  38 x 146*    38    ± 1,1    146    ± 1,5    42    41    121    41    110    27,6  
  42 x 146    42    ± 1,1    146    ± 1,5    45,5    48    135    46    115    36,0  
  48 x 144/160*    48    ± 1,5    304***    ± 1,6    56    62    163    57    127    48,2  
  48 x 152    48    ± 1,5    152    ± 1,5    54    61    162    52    126    45,7  
  52 x 170**    52    ± 1,6    170    ± 1,7    63,5    65    177    57    135    55,5  
  56 x 187**    56    ± 1,7    187    ± 1,9    65    69    188    62    146    64,4  
  60 x 189**    60    ± 2,0    189    ± 2,0    70    69    198    63    156    73,9  
* only as Flat type chains; ** only as DUALINK-Chain; *** module over two links

Mechanical Properties THD

ChainsizeArticle No.Test ForceElongation
under test
force
Breaking
Force
Elongation
at fracture
Minimum
Deflection
d x t [mm]TECkN% max.kN min.%[mm]
  26 x 92    F14965    637    1,6    850    11    26  
  30 x 108    F13771    848    1,6    1.130    11    30  
  34 x 126    F13807    1.090    1,6    1.450    11    34  
  38 x 126    F15051    1.360    1,6    1.820    11    38  
  38 x 137    F13891    1.360    1,6    1.820    11    38  
  38 x 146    F15076    1.360    1,6    1.820    11    38  
  42 x 146    F15041    1.660    1,6    2.220    11    42  
  48 x 144/160    F14953    1.850    1,6    2.900    12    48  
  48 x 152    F14964    2.170    1,6    2.900    11    48  
the above values apply to chains in "natural black" condition (nsw)

Mechanical Properties THD-DUALLINK

ChainsizeArticle No.Test ForceElongation
under test
force
Breaking
Force
Elongation
at fracture
Minimum
Deflection
d x t [mm]TECkN% max.kN min.%[mm]
the above values apply to chains in "natural black" condition (nsw)

TSC-Flat type chains / DUALINK®-Chains


TSC Flat Type / DUALINK Chains provide high wear resistant crowns (THIELE Super Crown) and are widely used / recommended in BSL-Applications.

TSC Chains are not recommended for corrosive environments – especially in face-conveyor applications – due to the risk of stress corrosion cracking.


Mechanical Properties

ChainsizeDiameterPitchThick-
ness
Inside Width
Roundlink
Outside Width
Roundlink
Inside Width
Flatlink
Outside Width
Flatlink
Weight
d x t [mm]dte max.b1 min.b2 max.b3 min.b4 max.[kg/m]
  24 x 86**    24    ± 0,7    86    ± 0,9    29    31    81    28    64    11,5  
  26 x 92*    26    ± 0,8    92    ± 0,9    30    31    85    29    75    13,7  
  30 x 108    30    ± 0,9    108    ± 1,1    34    34,5    98    33    87    18,0  
  34 x 126*    34    ± 1,0    126    ± 1,3    38    39    109    37    98    22,7  
  38 x 126*    38    ± 1,1    126    ± 1,3    42    41    121    41    110    30,1  
  38 x 137    38    ± 1,1    137    ± 1,4    42    41    121    41    110    29,0  
  38 x 146*    38    ± 1,1    146    ± 1,5    42    41    121    41    110    27,6  
  42 x 146    42    ± 1,1    146    ± 1,5    45,5    48    135    46    115    36,0  
  48 x 144/160*    48    ± 1,5    304***    ± 1,6    56    62    163    57    127    48,2  
  48 x 152    48    ± 1,5    152    ± 1,5    54    61    162    52    126    45,7  
  52 x 170**    52    ± 1,6    170    ± 1,7    63,5    65    177    57    135    55,5  
  56 x 187**    56    ± 1,7    187    ± 1,9    65    69    188    62    146    64,4  
  60 x 189**    60    ± 2,0    189    ± 2,0    70    69    198    63    156    73,9  
* only as Flat type chains; ** only as DUALINK-Chain; *** module over two links

Mechanical Properties TSC

ChainsizeArticle No.Test ForceElongation
under test
force
Breaking
Force
Elongation
at fracture
Minimum
Deflection
d x t [mm]TECkN% max.kN min.%[mm]
  26 x 92    F14966    637    1,4    940    11    26  
  34 x 126    F13801    1.090    1,4    1.610    11    34  
  38 x 126    F15054    1.360    1,4    2.010    11    38  
  38 x 137    F13912    1.360    1,4    2.010    11    38  
  38 x 146    F15086    1.360    1,4    2.010    11    38  
  42 x 146    F15023    1.660    1,4    2.450    11    42  
  48 x 152    F14959    2.170    1,4    3.250    11    48  
the above values apply to chains in "natural black" condition (nsw)

Mechanical Properties TSC-DUALLINK

ChainsizeArticle No.Test ForceElongation
under test
force
Breaking
Force
Elongation
at fracture
Minimum
Deflection
d x t [mm]TECkN% max.kN min.%[mm]
the above values apply to chains in "natural black" condition (nsw)

TSD-Flat type chains / DUALINK®-Chains


TSD Flat Type / DUALINK Chains provide very high wear resistant crowns (THIELE Super Duty) and are widely used / recommended in BSL-Applications.

TSD Chains are not recommended for wet or aggressive operating conditions as their high strength specifications make them susceptible to stress corrosion cracking.


Mechanical Properties

ChainsizeDiameterPitchThick-
ness
Inside Width
Roundlink
Outside Width
Roundlink
Inside Width
Flatlink
Outside Width
Flatlink
Weight
d x t [mm]dte max.b1 min.b2 max.b3 min.b4 max.[kg/m]
  24 x 86**    24    ± 0,7    86    ± 0,9    29    31    81    28    64    11,5  
  26 x 92*    26    ± 0,8    92    ± 0,9    30    31    85    29    75    13,7  
  30 x 108    30    ± 0,9    108    ± 1,1    34    34,5    98    33    87    18,0  
  34 x 126*    34    ± 1,0    126    ± 1,3    38    39    109    37    98    22,7  
  38 x 126*    38    ± 1,1    126    ± 1,3    42    41    121    41    110    30,1  
  38 x 137    38    ± 1,1    137    ± 1,4    42    41    121    41    110    29,0  
  38 x 146*    38    ± 1,1    146    ± 1,5    42    41    121    41    110    27,6  
  42 x 146    42    ± 1,1    146    ± 1,5    45,5    48    135    46    115    36,0  
  48 x 144/160*    48    ± 1,5    304***    ± 1,6    56    62    163    57    127    48,2  
  48 x 152    48    ± 1,5    152    ± 1,5    54    61    162    52    126    45,7  
  52 x 170**    52    ± 1,6    170    ± 1,7    63,5    65    177    57    135    55,5  
  56 x 187**    56    ± 1,7    187    ± 1,9    65    69    188    62    146    64,4  
  60 x 189**    60    ± 2,0    189    ± 2,0    70    69    198    63    156    73,9  
* only as Flat type chains; ** only as DUALINK-Chain; *** module over two links

Mechanical Properties TSD

ChainsizeArticle No.Test ForceElongation
under test
force
Breaking
Force
Elongation
at fracture
Minimum
Deflection
d x t [mm]TECkN% max.kN min.%[mm]
  26 x 92    F14962    740    1,6    1.050    11    21  
  30 x 108    F13772    990    1,6    1.400    11    24  
  34 x 126    F13799    1.270    1,6    1.800    11    27  
  38 x 126    F15066    1.590    1,6    2.250    11    30  
  38 x 137    F13996    1.590    1,6    2.250    11    30  
  38 x 146    F15085    1.590    1,6    2.250    11    30  
  42 x 146    F15049    1.940    1,6    2.740    11    34  
the above values apply to chains in "natural black" condition (nsw)

Mechanical Properties TSD-DUALLINK

ChainsizeArticle No.Test ForceElongation
under test
force
Breaking
Force
Elongation
at fracture
Minimum
Deflection
d x t [mm]TECkN% max.kN min.%[mm]
the above values apply to chains in "natural black" condition (nsw)

TIP-Flat type chains / DUALINK®-Chains


THIELE TIP Chains have been developed for use on high-performance coal faces. By employing special alloyed steel the main operating parameters of these mining chains have been significantly improved without any loss in impact strength and deformability.


As the use of additional alloy constituents means higher material costs the added benefits of TIP Chains only begin to be felt on high-performance faces where the extra expenditure is soon offset by the higher face output and the higher working capabilities of the chains.


Mechanical Properties

ChainsizeDiameterPitchThick-
ness
Inside Width
Roundlink
Outside Width
Roundlink
Inside Width
Flatlink
Outside Width
Flatlink
Weight
d x t [mm]dte max.b1 min.b2 max.b3 min.b4 max.[kg/m]
  24 x 86**    24    ± 0,7    86    ± 0,9    29    31    81    28    64    11,5  
  26 x 92*    26    ± 0,8    92    ± 0,9    30    31    85    29    75    13,7  
  30 x 108    30    ± 0,9    108    ± 1,1    34    34,5    98    33    87    18,0  
  34 x 126*    34    ± 1,0    126    ± 1,3    38    39    109    37    98    22,7  
  38 x 126*    38    ± 1,1    126    ± 1,3    42    41    121    41    110    30,1  
  38 x 137    38    ± 1,1    137    ± 1,4    42    41    121    41    110    29,0  
  38 x 146*    38    ± 1,1    146    ± 1,5    42    41    121    41    110    27,6  
  42 x 146    42    ± 1,1    146    ± 1,5    45,5    48    135    46    115    36,0  
  48 x 144/160*    48    ± 1,5    304***    ± 1,6    56    62    163    57    127    48,2  
  48 x 152    48    ± 1,5    152    ± 1,5    54    61    162    52    126    45,7  
  52 x 170**    52    ± 1,6    170    ± 1,7    63,5    65    177    57    135    55,5  
  56 x 187**    56    ± 1,7    187    ± 1,9    65    69    188    62    146    64,4  
  60 x 189**    60    ± 2,0    189    ± 2,0    70    69    198    63    156    73,9  
* only as Flat type chains; ** only as DUALINK-Chain; *** module over two links

Mechanical Properties TIP

ChainsizeArticle No.Test ForceElongation
under test
force
Breaking
Force
Elongation
at fracture
Minimum
Deflection
d x t [mm]TECkN% max.kN min.%[mm]
  38 x 126    F15051TIP    1.430    1,6    1.910    11    38  
  38 x 137    F13891TIP    1.430    1,6    1.910    11    38  
  38 x 146    F15076TIP    1.430    1,6    1.910    11    38  
  42 x 146    F15046    1.750    1,6    2.330    11    42  
  48 x 152    F14964TIP    2.280    1,6    3.040    11    48  
the above values apply to chains in "natural black" condition (nsw)

Mechanical Properties TIP-DUALLINK

ChainsizeArticle No.Test ForceElongation
under test
force
Breaking
Force
Elongation
at fracture
Minimum
Deflection
d x t [mm]TECkN% max.kN min.%[mm]
the above values apply to chains in "natural black" condition (nsw)