Medium bore size cylinder Double acting, single rod type CMK2 Series Bore size: ø20 to ø40 Features • High corrosion proof and long life • Caulked type with numerous variations Catalog No. CB-029SA How to order Without switch CMK2 00 20 NN 100 Y With switch CMK2 00 20 NN 100 T2H R Y A B C D E F G Symbol Descriptions D Stroke length (mm) A Mounting style Bore size Stroke length 00 Basic type ø20 LB Axial foot type (double) ø25 25, 50, 75, 100, 150, 200, 250, 300 LS Axial foot type (single) Note 1 ø32 FA Rod side flange type ø40 FB Head end flange type E Switch model No. CA Single clevis type Lead Lead wire Lead wire CC Single clevis integrated type Contact Indicator straight type radial wire CB Double clevis type (pin and washer pin attached) T2H* T2V* 2 wire One color indicator TA Rod side trunnion type Proximity T3H* T3V* type 3 wire TB Head end trunnion type *Lead wire length Note 1: The maximum stroke length of the single foot type (LS type) is 50 mm. Blank 1 m (standard) B Bore size (mm) F Switch quantity 20 ø20 R One on rod end 25 ø25 H One on head end 32 ø32 D Two 40 ø40 T Three C Port thread type G Accessory Blank M5 (ø12 to ø16) I Single knuckle NN NPT screw (ø20 to ø63) Y Double knuckle (pin and washer pin attached) B2 Double bracket (pin and snap ring attached) Specifications Stroke length Item CMK2 Bore size mm ø20 ø25 ø32 ø40 Bore size Maximum stroke Standard stroke length (mm) Actuation Double acting (mm) length (mm) Use fluid Compressed air Maximum working pressure MPa 1.0 ø20 Minimum working pressure MPa 0.1 ø25 25, 50, 75, 100, 150, Proof pressure MPa 1.6 300 200, 250, 300 ø32 Ambient temperature °C –10 to 60 (No freezing) ø40 Connection diameter NPT1/8 +2.0 (up to 200) + 2.4 (over 200) Minimum stroke length of types Stroke tolerance mm 0 0 with switch (mm) Bore size Minimum stroke Working piston speed mm/s 50 to 500 (mm) length (mm) Switch quantity Cushion Rubber cushion 1 2 3 Lubrication Not required (when lubricating, use turbine oil Class 1 ISOVG32) ø20 Permission absorbed 0.166 0.308 0.424 0.639 energy J ø25 5 10 25 50 ø32 ø40 Note 1: The maximum stroke length of the single foot type (LS type) is 50 mm. 2 (Pθ) 8 8 P P P Dimensions Basic type (OO) MO X+stroke A WF LL+stroke V HA C V 16GC 30.5 30.5 GD16 K P1 8 øMM 8 RD HD T 2-NPT1/8 KK MB Width across flats B 10 10 MB XF 2-Width across flats U RD: Rod side maximum sensitivity installation position HD: Head end maximum sensitivity installation position Symbol Basic type (OO) basic dimensions With switch Bore size (mm) A B C D F HA K KK LL MB MM MN MO T U V WF X XF GC GD RD HD P P1 (Pθ)° ø20 20 13 18 21.4 28 26 12 M8×1.0 66 M18×1.5 10 8 5 5 24 14 24 124 44 4.0 3.0 8.0 7.0 17.3 19.5 22 ø25 23 17 20 26.4 32 35 14 M10×1.25 69 M26×1.5 12 10 5 6 30 16 23 131 46 5.5 4.5 9.5 8.5 19.8 22.0 18 ø32 23 17 20 33.6 36 35 14 M10×1.25 69 M26×1.5 12 10 5 6 34 16 23 131 46 5.5 4.5 9.5 8.5 24.3 25.5 15 ø40 25 19 22 41.6 45 35 14 M12×1.5 73 M26×1.5 14 12 6 7 43 16 23 137 48 7.0 6.5 11.5 10.5 28.3 29.5 12 Note: Refer to pages 6 and 7 for accessory dimensions. Axial foot type (LB) LA+stroke A WF LL+stroke V HA 30.5 GD16 C V 16GC 30.5 8 2-NPT1/8 8 P1 RD HD øMM T LF KK 10 10 Width across flats B LB LC LB LR LC 4-øLD LS LG+stroke Symbol Axial foot type (LB) basic dimensions Mounting dimensions Bore size (mm) A B C D HA KK LL MM T V WF LA LB LC LD LF LG LH LI LR LS LT ø20 20 13 18 21.4 26 M8×1.0 66 10 5 14 24 138 10 18 6 6 102 25 15 30 44 3.2 ø25 23 17 20 26.4 35 M10×1.25 69 12 6 16 23 150 12 23 7 0 115 30 20 46 62 3.2 ø32 23 17 20 33.6 35 M10×1.25 69 12 6 16 23 150 12 23 7 0 115 30 20 46 62 3.2 ø40 25 19 22 41.6 35 M12×1.5 73 14 7 16 23 156 12 23 7 0 119 30 20 46 62 3.2 Note 1: Refer to pages 6 and 7 for accessory dimensions. Note 2: Refer to the "With switch" column of the Basic type (OO) dimensions. Axial foot type (single) (LS) X+stroke A WF V LL+stroke HA V 16GC 30.5 30.5 GD16 K C 8 RD 2-NPT1/8 8 HD øMM P1 T KK MB 10 10 Width across flats B LR LC LB LS LF LG+stroke 2-øLD Symbol Axial foot type (single) (LB) basic dimensions Mounting dimensions Bore size (mm) A B C D HA K KK LL MB MM T V WF X LB LC LD LF LG LH LI LR LS LT ø20 20 13 18 21.4 26 12 M8×1.0 66 M18×1.5 10 5 14 24 124 10 18 6 38.8 65.2 25 15 30 44 3.2 ø25 23 17 20 26.4 35 14 M10×1.25 69 M26×1.5 12 6 16 23 131 12 23 7 42.8 65.2 30 20 46 62 3.2 ø32 23 17 20 33.6 35 14 M10×1.25 69 M26×1.5 12 6 16 23 131 12 23 7 42.8 65.2 30 20 46 62 3.2 ø40 25 19 22 41.6 35 14 M12×1.5 73 M26×1.5 14 7 16 23 137 12 23 7 42.8 69.2 30 20 46 62 3.2 Note 1: The maximum stroke length is 50. Note 2: Refer to the "With switch" column of the Basic type (OO) dimensions. 3 (Pθ) (Pθ) 8 LH LI LH LI LT LT MN (width across flat) øD øD øD øF Pneumatic cylinder 8 Dimensions Rod side flange type (FA) X+stroke A WF LL+stroke V V 16GC 30.5 30.5 GD16 K C HA 2-NPT1/8 8 RD HD 8 øMM T KK 10 FT 10 MB FL 4-øFD FM FF FG+stroke Width across flats B Symbol Rod side flange type (FA) basic dimensions Mounting dimensions With switch Bore size (mm) A B C D F HA K KK LL MB MM T V WF X FC FD FF FG FH FL FM FP FT GC GD RD HD ø20 20 13 18 21.4 28 26 12 M8×1.0 66 M18×1.5 10 5 14 24 124 20 6 20.8 83.2 34 40 54 29 3.2 4.0 3.0 8.0 7.0 ø25 23 17 20 26.4 32 35 14 M10×1.25 69 M26×1.5 12 6 16 23 131 28 7 18.5 89.5 44 64 80 41 4.5 5.5 4.5 9.5 8.5 ø32 23 17 20 33.6 36 35 14 M10×1.25 69 M26×1.5 12 6 16 23 131 28 7 18.5 89.5 44 64 80 41 4.5 5.5 4.5 9.5 8.5 ø40 25 19 22 41.6 45 35 14 M12×1.5 73 M26×1.5 14 7 16 23 137 28 7 18.5 93.5 44 64 80 41 4.5 7.0 6.5 11.5 10.5 Note: Refer to pages 6 and 7 for accessory dimensions. Head end flange type (FB) X+stroke A WF LL+stroke V 30.5 GD16 V 16GC 30.5 C HA RD 2-NPT1/8 8 8 HD øMM T K KK MB 10 10 FT FL 4-øFD FJ+stroke FM Width across flats B Symbol Head end flange type (FB) basic dimensions Mounting dimensions With switch Bore size (mm) A B C D HA K KK LL MB MM T V WF X FC FD FH FJ FL FM FP FT GC GD RD HD ø20 20 13 18 21.4 26 12 M8×1.0 66 M18×1.5 10 5 14 24 124 20 6 34 93.2 40 54 29 3.2 4.0 3.0 8.0 7.0 ø25 23 17 20 26.4 35 14 M10×1.25 69 M26×1.5 12 6 16 23 131 28 7 44 96.5 64 80 41 4.5 5.5 4.5 9.5 8.5 ø32 23 17 20 33.6 35 14 M10×1.25 69 M26×1.5 12 6 16 23 131 28 7 44 96.5 64 80 41 4.5 5.5 4.5 9.5 8.5 ø40 25 19 22 41.6 35 14 M12×1.5 73 M26×1.5 14 7 16 23 137 28 7 44 100.5 64 80 41 4.5 7.0 6.5 11.5 10.5 Note: Refer to pages 6 and 7 for accessory dimensions. Single clevis type (CA) CA+stroke A WF LL+stroke 16GC 30.5 30.5 GD16 C V CL CM øMM 8 RD 2-NPT1/8 HD 8 øCDH10 P1 Note 1 T K KK 0 MB 10 10 CB CC CQ -0.2 Width across flats B CJ+stroke Symbol Single clevis type (CA) basic dimensions Mounting dimensions Bore size (mm) A B C D K KK LL MB MM T V WF CA CB CC CD CH ø20 20 13 18 21.4 12 M8×1.0 66 M18×1.5 10 5 14 24 165 14 10 10 26 ø25 23 17 20 26.4 14 M10×1.25 69 M26×1.5 12 6 16 23 177 18 12 12 35 ø32 23 17 20 33.6 14 M10×1.25 69 M26×1.5 12 6 16 23 177 18 12 12 35 ø40 25 19 22 41.6 14 M12×1.5 73 M26×1.5 14 7 16 23 183 18 12 12 35 Mounting dimensions With switch Note 1: Not a piping port. Note 2: Refer to pages 6 and 7 for accessory CJ CL CM CO CP CQ GC GD RD HD P P1 (Pθ)° dimensions. 135 31 24 22 28 8 4.0 3.0 8.0 7.0 17.3 19.5 22 142 32 30 26 37 10 5.5 4.5 9.5 8.5 19.8 22.0 18 142 32 30 26 37 10 5.5 4.5 9.5 8.5 24.3 25.5 15 146 32 30 26 37 10 7.0 6.5 11.5 10.5 28.3 29.5 12 4 P øFP øFP øCP (Pθ) FC FH øD øD øD FH CO FC øF CH 8 8 8 øF øF Dimensions Double clevis type (CB) CA+stroke A WF LL+stroke 16GC 30.5 30.5 GD16 CL C V CM øMM 8 RD 2-NPT1/8 HD 8 øCDH10 P1 Note 1 K T KK +0.2 MB 10 CB CC 10 CW +0.1 Width across flats B CJ+stroke CV Symbol Double clevis type (CB) basic dimensions Mounting dimensions Bore size (mm) A B C D K KK LL MB MM T V WF CA CB CC CD CH ø20 20 13 18 21.4 12 M8×1.0 66 M18×1.5 10 5 14 24 165 14 10 10 26 ø25 23 17 20 26.4 14 M10×1.25 69 M26×1.5 12 6 16 23 177 18 12 12 35 ø32 23 17 20 33.6 14 M10×1.25 69 M26×1.5 12 6 16 23 177 18 12 12 35 ø40 25 19 22 41.6 14 M12×1.5 73 M26×1.5 14 7 16 23 183 18 12 12 35 Symbol With switch Bore size (mm) CJ CL CM CO CP CV CW GC GD RD HD P P1 (Pθ)° ø20 135 31 24 22 28 19 8 4.0 3.0 8.0 7.0 17.3 19.5 22 ø25 142 32 30 26 37 25 10 5.5 4.5 9.5 8.5 19.8 22.0 18 ø32 142 32 30 26 37 25 10 5.5 4.5 9.5 8.5 24.3 25.5 15 ø40 146 32 30 26 37 25 10 7.0 6.5 11.5 10.5 28.3 29.5 12 Note 1: Not a piping port. Note 2: Refer to pages 6 and 7 for accessory dimensions. Single clevis integrated type (CC) CA+stroke A WF LL+stroke C 16GC 30.5 30.5 GD16 CM V U øMM 8 RD 2-NPT1/8 HD 8 øCDH10 P1 T K KK -0.1 10 MB 10 CB CC CQ -0.3 Width across flats B CJ+stroke  Single clevis integrated type (CC) with bracket (option symbol B2) CA+stroke A WF LL+stroke U 16GC 30.5 30.5 GD16 -0.1 C V CM CQ -0.3 øMM 8 RD 2-NPT1/8 8 HD P1 K T KK MB 10 10 Width across flats B CJ+stroke 4-long hole 7×11 20 10 20 20 10 7.5 40 CR CS 55 Symbol Single clevis integrated type (CC) basic dimensions Mounting dimensions Bore size (mm) A B C D F K KK LL MB MM T U V WF CA CB CC ø20 20 13 18 21.4 28 12 M 8×1.0 66 M18×1.5 10 5 24 14 24 131 12 9 ø25 23 17 20 26.4 32 14 M10 × 1.25 69 M26×1.5 12 6 30 16 23 136 12 9 ø32 23 17 20 33.6 36 14 M10 × 1.25 69 M26×1.5 12 6 34 16 23 141 14 12 ø40 25 19 22 41.6 45 14 M12×1.5 73 M26×1.5 14 7 43 16 23 151 16 14 Symbol With switch Bore size (mm) CD CJ CM CO CQ CR CS GC GD RD HD P P1 (Pθ)° ø20 8 102 21 22 16 56 76 4.0 3.0 8.0 7.0 17.3 19.5 22 ø25 8 104 21 24 16 56 76 5.5 4.5 9.5 8.5 19.8 22.0 18 ø32 10 106 26 24 16 56 76 5.5 4.5 9.5 8.5 24.3 25.5 15 ø40 12 112 30 30 20 60 80 7.0 6.5 11.5 10.5 28.3 29.5 12 Note: Refer to pages 6 and 7 for accessory dimensions. 5 P P P øCP (Pθ) (Pθ) (Pθ) øD øD øD 3.2 CO CO CO 50 CH Pneumatic cylinder (Pθ) (Pθ) P P Dimensions Rod side trunnion type (TA) X+stroke HA A WF LL+stroke V 30.5 GD16 C 16GC 30.5 K V TB 8 RD 2-NPT1/8 HD P1 8 øMM T KK 10 10 MB TM TL Width TE across flats B TN TF TG+stroke  Rod side trunnion type (TA) with bracket (option symbol B2) TN X+stroke TM TL A WF LL+stroke V GD16 C V 16GC 30.5 30.5 K HA 2-NPT1/8 HD P1 TB 8 RD 8 øMM T KK 10 10 MB Width across flats B TF TG+stroke 10 20 20 10 20 TR 7.5 40 4-long hole 7×11 TS 55 Symbol Rod side trunnion type (TA) basic dimensions Mounting dimensions Bore size (mm) A B C D F HA K KK LL MB MM T V WF X TB TD ø20 20 13 18 21.4 28 26 12 M8×1.0 66 M18×1.5 10 5 14 24 124 4.5 8 ø25 23 17 20 26.4 32 35 14 M10×1.25 69 M26×1.5 12 6 16 23 131 5.5 10 ø32 23 17 20 33.6 36 35 14 M10×1.25 69 M26×1.5 12 6 16 23 131 5.5 10 ø40 25 19 22 41.6 45 35 14 M12×1.5 73 M26×1.5 14 7 16 23 137 5.5 10 Symbol With switch Note: Refer to pages 6 and 7 for accessory dimensions. Bore size (mm) TE TF TG TH TL TM TN TR TS GC GD RD HD P P1 (Pθ)° ø20 9 19.5 84.5 29.5 8 30 46 70 90 4.0 3.0 8.0 7.0 17.3 19.5 22 ø25 11 17.5 90.5 39 12 40 64 80 100 5.5 4.5 9.5 8.5 19.8 22.0 18 ø32 11 17.5 90.5 39 12 40 64 80 100 5.5 4.5 9.5 8.5 24.3 25.5 15 ø40 11 17.5 94.5 44 9.5 53 72 93 113 7.0 6.5 11.5 10.5 28.3 29.5 12 Accessory dimensions Material: Steel Material: Steel Material: Steel Single knuckle (I) Double knuckle (Y) Double bracket (B2) -0.1 +0.3 EW -0.2 CB +0.1 CDH10 CDH10 50 30 15 20 7 3.2 +0.1 CD 0 R3.5 KK KK CH 19 CH CL R MR Note: Pin and washer pin are attached. Note: One pair constitutes brackets that are symmetrical across the XY line. Applicable tube Applicable tube Applicable Applicable tube Mass Model Mass Model Mass Model No. CD MR Inner diameter AA CA CD CH EW KK MA MC Inner diameter CA CB CD CH CL KK MA MC model Inner diameter (mm) (g) No. (g) No. (g) (mm) (mm) M1-B2-20-CC 20, 25 8 8 145 CMK2-CC M1-I-20 20 14 30 10 19 8 M8×10 13 10 60 M1-B2-30-CC (single clevis integrated 32 10 11 163 M1-Y-20 20 30 8 10 19 19 M8×10 13 10 99 M1-I-30 25, 32 16 36 12 25 10 M10×1.25 16 12 106 type) M1-B2-40-CC 40 12 11 170 M1-Y-30 25, 32 36 10 12 25 25 M10×1.25 16 12 197 M1-I-40 40 14 36 12 25 10 M12×1.5 16 12 100 M1-B2-30-CA 20 10 11 158 M1-Y-40 40 36 10 12 25 25 M12×1.5 16 12 193 CMK2-CA M1-B2-40-CA (single clevis type) 25, 32, 40 12 11 162 M1-B2-20-TA CMK2-TA/TB 20 8 8 132 (trunnion type) M1-B2-30-TA 25, 32, 40 10 11 142 Note: The model No. above include snap rings and pins. One set includes two pieces. (They are not included for the trunnion type.) 6 8 8 TH øTDd9 50 AA MA TH øTDd9 CA MC MB CA MC 3.2 øD øD X Y 55 øF øF 7.5 40 8 8 Dimensions Head end trunnion type (TB) X+stroke A WF LL+stroke V 16GC 30.5 C V 30.5 GD16 HA 8 TB øMM 8 RD HD 2-NPT1/8 P1 K T KK Width 10 10 TL TM MB TE across flats B TJ+stroke TN TK  Head end trunnion type (TB) with bracket (option symbol B2) X+stroke TN TM TL A WF LL+stroke V 16GC 30.5 30.5 GD16 C V HA 8 TB øMM 8 RD 2-NPT1/8 HD P1 T K KK 10 Width 10 MB across flats B TJ+stroke 20 20 10 10 20 40 7.5 TR 4-long hole 7×11 55 TS Symbol Head end trunnion type (TB) basic dimensions Mounting dimensions Bore size (mm) A B C D HA K KK LL MB MM T V WF X TB TD ø20 20 13 18 21.4 26 12 M8×1.0 66 M18×1.5 10 5 14 24 124 4.5 8 ø25 23 17 20 26.4 35 14 M10×1.25 69 M26×1.5 12 6 16 23 131 5.5 10 ø32 23 17 20 33.6 35 14 M10×1.25 69 M26×1.5 12 6 16 23 131 5.5 10 ø40 25 19 22 41.6 35 14 M12×1.5 73 M26×1.5 14 7 16 23 137 5.5 10 Symbol With switch Note: Refer to pages 6 and 7 for accessory Bore size (mm) TE TH TJ TK TL TM TN TR TS GC GD RD HD P P1 (Pθ)° dimensions. ø20 9 29.5 94.5 9.5 8 30 46 70 90 4.0 3.0 8.0 7.0 17.3 19.5 22 ø25 11 39 97.5 10.5 12 40 64 80 100 5.5 4.5 9.5 8.5 19.8 22.0 18 ø32 11 39 97.5 10.5 12 40 64 80 100 5.5 4.5 9.5 8.5 24.3 25.5 15 ø40 11 44 101.5 10.5 9.5 53 72 93 113 7.0 6.5 11.5 10.5 28.3 29.5 12 Accessory dimensions Pin for double knuckle (P) Pin for double bracket (P1) (P2) Rod nut (NR) Material: Steel Material: Steel Material: Steel A CDf8 B T 4.5 EL T A +0.1 +0.1 0.9 0 B 0.9 0 2-D 8 20 4 KK Applicable tube Applicable tube Snap Applicable tube Model Mass Model Applicable Mass Model Mass Inner diameter A D CD EL T X Y Inner diameter A B CD D ring Inner diameter B C KK T No. (g) No. model (g) No. (g) (mm) (mm) to use (mm) M1-P-20 20 37 4 10 28 2 10.5 18 29 M1-P1-20 20, 25 33 28 8 7 E type 7 13 M1-NR-20 20 13 15 M8×10 5 3.6 M1-P-30 25, 32, 40 46 4 12 37 2.5 13 21 50 M1-P1-30 CMK2-CC 32 33 28 10 9 E type 9 21 M1-NR-30 25, 32 17 19.6 M10×1.25 6 7.8 M1-P1-40 40 37 32 12 9 E type 9 32 M1-NR-40 40 19 21.9 M12×1.5 7 10 Note: A pin and a washer pin are attached to double knuckle products. M1-P2-20 20 25 20 10 9 E type 9 16 CMK2-CA M1-P2-30 25, 32, 40 27 22 12 9 E type 9 24 Note: The pin and snap ring for the bracket are attached to the single clevis integrated type. (They are not included for the trunnion type.) 7 P P 3.7 (Pθ) (Pθ) 7.4 øX øY øD øD 3.2 øD øCDe8 øTDd9 C TH 50 øTDd9 TH Pneumatic cylinder