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Johnson Tailboard Blocks

Lifting & Rigging Blocks

Many options are available! Check out the chart below and give us a call 405-672-0531.

 

 

W.L.L (METRIC TON)     A B E F L P Q S
MODEL NO. STANDARD WIRE ROPE SIZE WT Overall Length Net Length Thick-ness Width Center Pin Dia. Pin Dia. Width Betwn. Plate Bottom Plate Radius
2 MT                    
SB 2S 3BT 5/16 – 3/8 3 5.33 4.41 2.91 3.2 0.75 0.5 1.06 0.92
4 MT                    
SB 4S 4BT 3/8 – 1/2 9 7.82 6.51 3.79 4.76 1 0.75 1.58 1.31
SB 4S 4RT 3/8 – 1/2 9 7.82 6.51 3.79 4.76 1 0.75 1.58 1.31
SB 4S 6BT 3/8 – 1/2 14 10 8.69 3.79 6.26 1 0.75 1.58 1.31
SB 4S 6RT 3/8 – 1/2 14 10 8.69 3.79 6.26 1 0.75 1.58 1.31
SB 4S 8BT 3/8 – 1/2 19 12 10.69 3.79 8.26 1 0.75 1.58 1.31
SB 4S 8RT 3/8 – 1/2 19 12 10.69 3.79 8.26 1 0.75 1.58 1.31
SB 4S 10BT 3/8 – 1/2 27 14.06 12.75 3.79 10.26 1.25 0.75 1.58 1.31
SB 4S 10RT 3/8 – 1/2 25 14.06 12.75 3.79 10.26 1.25 0.75 1.58 1.31
SB 4S 12BT 3/8 – 1/2 34 16.06 14.75 3.79 12.26 1.25 0.75 1.58 1.31
SB 4S 12RT 3/8 – 1/2 36 16.06 14.75 3.79 12.26 1.25 0.75 1.58 1.31
SB 4S 14BT 3/8 – 1/2 43 18.06 16.75 3.79 14.26 1.25 0.75 1.58 1.31
SB 4S 14RT 3/8 – 1/2 45 18.06 16.75 3.79 14.26 1.25 0.75 1.58 1.31
8 MT                    
SB 8S 6BT 5/8 – 3/4 17 10.61 8.8 4.28 6.24 1.5 1 1.65 1.81
SB 8S 6RT 5/8 – 3/4 20 10.61 8.8 4.28 6.24 1.5 1 1.65 1.81
SB 8S 8BT 5/8 – 3/4 25 12.61 10.8 4.28 8.24 1.5 1 1.65 1.81
SB 8S 8RT 5/8 – 3/4 14 12.61 10.8 4.28 8.24 1.5 1 1.65 1.81
SB 8S 10BT 5/8 – 3/4 31 14.61 12.8 4.28 10.24 1.5 1 1.65 1.81
SB 8S 10RT 5/8 – 3/4 30 14.61 12.8 4.28 10.24 1.5 1 1.65 1.81
SB 8S 12BT 5/8 – 3/4 34 16.64 14.83 4.28 12.18 1.5 1 1.65 1.81
SB 8S 12RT 5/8 – 3/4 45 16.64 14.83 4.28 12.18 1.5 1 1.65 1.81
SB 8S 14BT 5/8 – 3/4 54 18.64 16.83 4.28 14.18 1.5 1 1.65 1.81
SB 8S 14RT 5/8 – 3/4 54 18.64 16.83 4.28 14.18 1.5 1 1.65 1.81
12 MT                    
SB 12S 6BT 3/4 – 7/8 29 12.21 9.77 5.23 6.68 2 1.25 2.03 2.44
SB 12S 6RT 3/4 – 7/8 30 12.21 9.77 5.23 6.68 2 1.25 2.03 2.44
SB 12S 8BT 3/4 – 7/8 39 13.77 11.33 5.23 8.24 2 1.25 2.03 2.44
SB 12S 8RT 3/4 – 7/8 39 13.77 11.33 5.23 8.24 2 1.25 2.03 2.44
SB 12S 10BT 3/4 – 7/8 52 15.77 13.33 5.23 10.24 2 1.25 2.03 2.44
SB 12S 10RT 3/4 – 7/8 54 15.77 13.33 5.23 10.24 2 1.25 2.03 2.44
SB 12S 12BT 3/4 – 7/8 72 17.77 15.33 5.23 12.24 2 1.25 2.03 2.44
SB 12S 12RT 3/4 – 7/8 69 17.77 15.33 5.23 12.24 2 1.25 2.03 2.44
SB 12S 14BT 3/4 – 7/8 85 19.77 17.33 5.23 14.24 2 1.25 2.03 2.44
SB 12S 14RT 3/4 – 7/8 84 19.77 17.33 5.23 14.24 2 1.25 2.03 2.44
SB 12S 16BT 3/4 – 7/8 108 21.93 19.49 5.23 16.36 2 1.25 2.03 2.44
SB 12S 16RT 3/4 – 7/8 113 21.93 19.49 5.23 16.36 2 1.25 2.03 2.44
15 MT                    
SB 15S 8BT 3/4 – 7/8 39 13.77 11.33 5.23 8.24 2.5 1.25 2.03 2.44
SB 15S 8RT 3/4 – 7/8 39 13.77 11.33 5.23 8.24 2 1.25 2.03 2.44
SB 15S 10BT 3/4 – 7/8 52 15.77 13.33 5.23 10.24 2.5 1.25 2.03 2.44
SB 15S 10RT 3/4 – 7/8 63 15.77 13.33 5.23 10.24 2 1.25 2.03 2.44
SB 15S 12BT 3/4 – 7/8 71 17.77 15.33 5.23 12.24 2.5 1.25 2.03 2.44
SB 15S 12RT 3/4 – 7/8 69 17.77 15.33 5.23 12.24 2 1.25 2.03 2.44
SB 15S 14BT 3/4 – 7/8 82 19.77 17.33 5.23 14.24 2.5 1.25 2.03 2.44
SB 15S 14RT 3/4 – 7/8 84 19.77 17.33 5.23 14.24 2 1.25 2.03 2.44
SB 15S 16BT 3/4 – 7/8 110 21.93 19.49 5.23 16.36 2.5 1.25 2.03 2.44
SB 15S 16RT 3/4 – 7/8 113 21.93 19.49 5.23 16.36 2 1.25 2.03 2.44
20 MT                    
SB 20S 8BT 1 – 1 1/8 46 14.24 11.8 6.16 8.24 2.25 1.63 2.53 2.44
SB 20S 8RT 1 – 1 1/8 46 14.24 11.8 6.16 8.24 2.25 1.63 2.53 2.44
SB 20S 10BT 1 – 1 1/8 60 16.24 13.8 6.16 10.24 2.25 1.63 2.53 2.44
SB 20S 10RT 1 – 1 1/8 62 16.24 13.8 6.16 10.24 2.25 1.63 2.53 2.44
SB 20S 12BT 1 – 1 1/8 70 18.24 15.8 6.16 12.24 2.25 1.63 2.53 2.44
SB 20S 12RT 1 – 1 1/8 69 18.24 15.8 6.16 12.24 2.25 1.63 2.53 2.44
SB 20S 14BT 1 – 1 1/8 81 20.24 17.8 6.16 14.24 2.25 1.63 2.53 2.44
SB 20S 14RT 1 – 1 1/8 87 20.24 17.8 6.16 14.24 2.25 1.63 2.53 2.44
SB 20S 16BT 1 – 1 1/8 112 22.24 19.8 6.16 16.24 2.25 1.63 2.53 2.44
SB 20S 16RT 1 – 1 1/8 115 22.24 19.8 6.16 16.24 2.25 1.63 2.53 2.44
SB 20S 18BT 1 – 1 1/8 137 24.24 21.8 6.16 18.24 3 1.63 2.53 2.44
SB 20S 18RT 1 – 1 1/8 141 24.24 21.8 6.16 18.24 3 1.63 2.53 2.44
30 MT                    
SB 30S 20BT 1 1/8 – 1 1/4 228 27.34 24.68 6.3 20.24 3.5 2.25 2.53 2.66
SB 30S 20RT 1 1/8 – 1 1/4 230 27.34 24.68 6.3 20.24 3.5 2.25 2.53 2.66
SB 30S 24BT 1 1/8 – 1 1/4 300 31.34 28.68 6.3 24.24 3.5 2.25 2.53 2.66
SB 30S 24RT 1 1/8 – 1 1/4 305 31.34 28.68 6.3 24.24 3.5 2.25 2.53 2.66

 

 

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