20 Series NCM Specifications: Single Acting, Spring Return / Spring Extend (lbs) Bore size (inch) Base weight by mounting style 1st inch of stroke Add’l weight per inch stroke 075 (3/4") 088 (7/8") 106 (1-1/16") 125 (1-1/4") 150 (1-1/2") B 0.148 0.194 0.293 0.514 0.587 C 0.164 0.182 0.287 0.518 0.619 E 0.224 0.264 0.369 0.644 0.707 R B, C, E B, C, E, R 0.224 N/A 0.430 N/A 1.020 0.044 0.047 0.063 0.108 0.113 0.078 0.086 0.112 0.220 0.212 Add’l weight for bumper 0.006 0.019 0.038 0.042 0.034 Add’l weight for magnet 0.008 0.010 0.012 0.020 0.024 (lbs) Spring Force: Spring Return (S) and Spring Extend (T) Type Cylinders Weight: Single Acting, Spring Return except Non-rotating Rod (lbs) Bore size (inch) Base weight by mounting style 1st inch of stroke Add’l weight per inch stroke 075 (3/4") 088 (7/8") 106 (1-1/16") 125 (1-1/4") 150 (1-1/2") B 0.197 0.214 0.337 0.598 0.749 C 0.171 0.188 0.311 0.564 0.781 E 0.253 0.270 0.393 0.690 0.869 R B, C, E B, C, E, R 0.210 N/A 0.430 N/A 1.020 0.044 0.047 0.063 0.108 0.113 0.071 0.078 0.116 0.186 0.222 Add’l weight for bumper 0.006 0.019 0.038 0.042 0.034 Add’l weight for magnet 0.008 0.010 0.012 0.020 0.024 Weight: Single Acting, Spring Extend except Non-rotating Rod Resting lbf (N) Bore size (inch) Compressed lbf (N) 075 (3/4") 088 (7/8") 106 (1-1/16") 125 (1-1/4") 150 (1-1/2") 3 (13.3) 3 (13.3) 3 (13.3) 7 (31.2) 7 (31.2) 6 5.45 6 12.4 12.4 (26.8) (24.4) (26.8) (55.6) (55.6)