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CKT Pneumatic was founded in 2002 and officially registered the CKT brand in 2005.

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SDA Series Thin Cylinder

Home / Products / Air Cylinder / Thin Cylinder / SDA Series Thin Cylinder

SDA Series Thin Cylinder SDA Series Thin Cylinder SDA Series Thin Cylinder SDA Series Thin Cylinder SDA Series Thin Cylinder
  • SDA Series Thin Cylinder
  • SDA Series Thin Cylinder
  • SDA Series Thin Cylinder
  • SDA Series Thin Cylinder
  • SDA Series Thin Cylinder
Thin Cylinder

SDA Series Thin Cylinder

Thin and light
While maintaining the existing motion accuracy and product life, its total length is only 1/2-1/3 of that of a general cylinder. It takes advantage of its thin and light characteristics.


Easy to install
The embedded installation method does not require any accessories to achieve the space saving requirements.


Easy to maintain
The design adopts a simple assembly method, which is convenient for installation, disassembly and maintenance.


Magnetic switch
The assembly groove is reserved on the periphery of the body, making it extremely simple to install and fix the magnetic switch and adjust its position.

E-mail: manager@cktworld.com
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  •   Bore Size(mm) 12  16  20  25  32  40  50  63  80  100 
      Action Double acting
    Single acting-push               Single acting-pull -
      Fluid Air
      Operating
      Pressure Range
        kgf/cm²    		 Double acting 1~9
    Single acting   2~9 -
      Proof Pressure  kgf/cm² 13.5 
      Operating Temperature Range℃ -5~70
      Operating Speed
      Range    mm/s    		 Double acting 30~500
    Single acting 50~500
      Cushion Bumper pad
      Port size   M5×0.8 PT1/8 PT1/4 PT3/8

  • Item Name Material Item Name Material
    1  Back cover 6060-T5 2  Piston bumper pad PU
    3  Piston 6061-T6 4  Double O type piston NBR
    5  Piston rod Medium carbon steel(Hardchrome plating) 6  Main body 6063-T5
    7  Front cover 60611-T6 8  Front cover O ring NBR
    9  C type jump ring Spring steel 10  Front cover seal ring NBR
    11  Nuts Carbon steel 12  Bushings Wear-resistant materials

    Replacement   Part/Seal   Ring
    Item Name Material     Components
    Ø12 Ø16 Ø20 Ø25 Ø32 Ø40 Ø50 Ø63 Ø80 Ø100
    9  Rod seal ring NBR PDB-6 PDB-6 PDB-8   PDB-10   PDB-12 PDB-16   PDB-20   PDB-20   PDU-25    PDU-32
    10  Piston seal ring   APA-012 APA-016   APA-O20   APA-Q25   APA-O32 APA-O40   APA-050   APA-Q63   APA-O80   APA-100
    11  Front cover O ring Ø12×1.5 Ø16×1.5 Ø17×1.8 Ø22×1.8 Ø27×1.8 Ø36×1.8 Ø47×1.8 Ø59×1.8 Ø75×1.8 Ø95×1.8
    Seal ring Model C-SDA12-PS C-SDA16-PS C-SDA20-PS C-SDA25-PS C-SDA32-PS C-SDA40-PS C-SDA50-PS C-SDA63-PS C-SDA80-PS C-SDA100-PS

    Form Standard With Auto Switch B1 D E F G K1 L M N1 N2
    Bore Size/ISymbol A C A C S=5 S>5 S=5 S>5
    12 22 17 32 27 5 - 6 4 1 M3×0.5 10.2 3 7.5 5
    16 24 18.5 34 28.5 5.5 - 6 4 1.5 M3×0.5 11 3 8 5.5
    20 25 19.5 35 29.5 5.5 36 8 4 1.5 M4×0.7 13 3 9 5.5
    25 27 21 37 31 6 42 10 4 2 M5×0.8 17 3 9.2 5.5
    32 31.5 24.5 41.5 34.5 7 50 12 4 3 M6×1 22 3 9 6.5 9
    40 33 26 43 36 7 58.5 12 4 3 M8×1.25 28 3 9.5 7.5
    50 37 28 47 38 9 71.5 15 5 4 M10×1.5 38 3 8 10.5 8 10.5
    63 41 32 51 42 9 84.5 15 5 4 M10×1.5 40 3 9.5 11.8 9.5 11.8
    80 52 41 62 51 11 104 20 6 5 M14×1.5 45 4 11.5 14.5 11.5 14.5
    100 63 51 73 61 12 124 20 7 5 N18×1.5 55 4 16 20.5 16 20.5

    Bore Size/ISymbol O P1 P3 P4 R S T1 T2 V W X Y
    12 M5×0.8 Both sides:φ6.5 thread M5×0.8 through-hole:φ4.2 12 4.5 - 25 16.3 23 6 5 - -
    16 M5×0.8 Both sides:φ6.5 thread M5×0.8 through-hole:φ4.2 12 4.5 - 29 19.8 28 6 5 - -
    20 M5×0.8 Both sides:φ6.5 thread M5×0.8 through-hole:φ4.2 14 4.5 2 34 24 - 8 6 11.3 10
    25 M5×0.8 Both sides:φ8.2 thread M6×1.0 through-hole:φ4.6 15 5.5 2 40 28 - 10 8 12 10
    32 PT1/8 Both sides:φ8.2 thread M6×1.0 through-hole:φ4.6 16 5.5 6 44 34 - 12 10 18.3 15
    40 PT1/8 Both sides:φ10 thread M8×1.25 through-hole:φ6.5 20 7.5 6.5 52 40 - 16 14 21.3 16
    50 PT1/4 Both sides:φ11 thread M8×1.25 through-hole:φ6.5 25 8.5 9.5 62 48 - 20 17 30 20
    63 PT1/4 Both sides:φ11 thread M8×1.25 through-hole:φ6.5 25 8.5 9.5 75 60 - 20 17 28.7 20
    80 PT3/8 Both sides:φ14 thread M12×1.75 through-hole:φ9.2 25 10.5 10 94 74 - 25 22 36 26
    100 PT3/8 Both sides:φ17.5 thread M14x2 through-hole:φ11.3 30 13 10 114 90 - 32 27 35 260

    Form Without Auto Switch With Auto Switch B1 D E F G K1 L M N1
    Bore Size/ISymbol A C A C
    ≤10 >10 ≤10 >10 ≤10 >10 ≤10 >10
    12 32 42 27 37 42 52 37 47 5 - 6 4 1 M3×0.5 10.2 3 5
    16 34 44 28.5 38.5 44 54 38.5 48.5 5.5 - 6 4 1.5 M3×0.5 11 3 5.5
    20 35 45 29.5 39.5 45 55 39.5 49.5 5.5 36 8 4 1.5 M4×0.7 13 3 5.5
    25 37 47 31 41 47 57 41 51 6 42 10 4 2 M5×0.8 17 3 5.5
    32 41.5 51.5 34.5 44.5 51.5 61.5 44.5 54.5 7 50 12 4 3 M6×1 22 3 9
    40 43 53 36 46 53 63 46 56 7 58.5 12 4 3 M8×1.25 28 3 7.5
    50 47 57 38 48 57 67 48 58 9 71.5 15 5 4 M10×1.5 38 3 10.5
    63 51 61 42 52 61 71 52 62 9 84.5 15 5 4 M10×1.5 40 3 11

    Bore Size/ISymbol O P1 P3 P4 R S T1 T2 V W X Y
    12 M5×0.8 Both sides:φ6.5 thread M5×0.8 through-hole:φ4.2 12 4.5 - 25 16.2 23 6 5 - -
    16 M5×0.8 Both sides:φ6.5 thread M5×0.8 through-hole:φ4.2 12 4.5 - 29 19.8 28 6 5 - -
    20 M5×0.8 Both sides:φ6.5 thread M5×0.8 through-hole:φ4.2 14 4.5 2 34 24 - 8 6 11.3 10
    25 M5×0.8 Both sides:φ8.2 thread M6×1.0 through-hole:φ4.6 15 5.5 2 40 28 - 10 8 12 10
    32 PT1/8 Both sides:φ8.2 thread M6×1.0 through-hole:φ4.6 16 5.5 6 44 34 - 12 10 18.3 15
    40 PT1/8 Both sides:φ10 thread M8×1.25 through-hole:φ6.5 20 7.5 6.5 52 40 - 16 14 21.3 16
    50 PT1/4 Both sides:φ11 thread M8×1.25 through-hole:φ6.5 25 8.5 9.5 62 48 - 20 17 30 20
    63 PT1/4 Both sides:φ11 thread M8×1.25 through-hole:φ6.5 25 8.5 9.5 75 60 - 20 17 28.7 20

    Form Without Auto Switch With Auto Switch B1 D E F G K1 L M N2
    Bore Size/ISymbol A C A   C
    Stroke ≤10 >10 ≤10 >10 ≤10 >10 ≤10 >10
    12  32  42  27  37  42  52  37  47  5  6  4  1  M3×0.5 10.2  3  7.5 
    16  34  44  28.5  38.5  44  54  38.5  48.5  5.5 
    -    		 6  4  1.5  M3×0.5 11  3  8 
    20  35  45  29.5  39.5  45  55  39.5  49.5  5.5  36  8  4  1.5  M4×0.7 13  3  9 
    25  37  47  31  41  47  57  41  51  6  42  10  4  2  M5×0.8 17  3  9.2 
    32  41.5  51.5  34.5  44.5  51.5  61.5  44.5  54.5  7  50  12  4  3  M6×1 22  3  9 
    40  43  53  36  46  53  63  46  56  7  58.5  12  4  3  M8×1.25 28  3  9.5 
    50  47  57  38  48  57  67  48  58  9  71.5  15  5  4  M10×1.5 38  3  10.5 
    63  51  61  42  52  61  71  52  62  9  84.5  15  5  4  M10×1.5 40  3  12 
    Bore Size/ISymbol O P1 P3 P4 R S T1 T2 V W X Y
    12  M5×0.8 Both sides:φ6.5 thread M5×0.8 through-hole:φ4.2 12  4.5 
    -    		 25  16.2  23  6  5 
    -
    16  M5×0.8 Both sides:φ6.5 thread M5×0.8 through-hole:φ4.2 12  4.5  - 29  19.8  28  6  5  -
    -
    20  M5×0.8 Both sides:φ6.5 thread M5×0.8 through-hole:φ4.2 14  4.5  2  34  24  - 8  6  11.3  10 
    25  M5×0.8 Both sides:φ8.2 thread M6×1.0 through-hole:φ4.6 15  5.5  2  40  28  - 10  8  12  10 
    32  PT1/8 Both sides:φ8.2 thread M6×1.0 through-hole:φ4.6 16  5.5  6  44  34  12  10  18.3  15 
    40  PT1/8 Both sides:φ10 thread M8×1.25 through-hole:φ6.5 20  7.5  6.5  52  40  16  14  21.3  16 
    50  PT1/4 Both sides:φ11 thread M8×1.25 through-hole:φ6.5 25  8.5  9.5  62  48  - 20  17  30  20 
    63  PT1/4 Both sides:φ11 thread M8×1.25 through-hole:φ6.5 25  8.5  9.5  75  60  20  17  28.7  20 

    Bore Size/ISymbol B2 E F G 2  I J K2 L M V W
    12  17  16  4  1  10  8  4  M5×0.8 10.2  3  6  5 
    16  17.5  16  4  1.5  10  8  4  M5×0.8 11  3  6  5 
    20  20.5  19  4  1.5  13  10  5  M6×1.0 13  3  8  6 
    25  23  21  4  2  15  12  6  M8×1.25 17  3  10  8 
    32  25  22  4  3  15  17  6  M10×1.25 22  3  12  10 
    40  35  32  4  3  25  19  8  M14×1.5 28  3  16  14 
    50  37  33  5  4  25  27  11  M18×1.5 38  3  20  17 
    63  37  33  5  4  25  27  11  M18×1.5 40  3  20  17 
    80  44  39  6  5  30  32  13  M22×1.5 45  4  25  22 
    100  50  45  7  5  35  36  13  M26×1.5 55  4  32  27