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NANJING ZHITIAN
Address:Tianyuan community,Chunhua street,Jiangning district,Nanjing,China.
Tel:86-13770960051
Fax:86-25-84183205
E-mail:zt@njzhitian.com
Gearbox
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SHT High Torque Gearbox

Adopting latest standard ISO1328,the precision of cylindrical gear of spherical involute, and combining our long term experience and specialty of twin-screw extruders, SHT gearboxes are meticulously designed with top advanced designing ideas in the world for co-orientated rotating twin-screw extruders, with entirely independent Intellectual Property Rights.


The gears are made of carburizing steel of high-strength alloy of good quality by carburizing and quenching for teeth, of which all the gear grinding processes are finished by imported gear grinding machines. Gear parameters are optimized and specially designed for the characteristics of twin-screw extruders, reducing stress concentration on root of gear and improving gear surface conditions. We have improved gear intension of flexural fatigue, fatigue strength and ratio of wide diameter. We have also adopted the latest designing idea and technology of heating treatment for the structure of gears, thereby ensured gears from uniformity of precision and strength.






Key Features:

      Solid and optimized structure minimizes vibration.

      High torque and high output speed rate design.

      Precision gear grinding to keep operation noise very low.

      Forced lubrication and cooling filter system to ensure excellent heat dissipation.

      All bearings are sourced from global recognized brands.

Twin Screw Extruder SHT Gearbox Power And Torque Table
Model
RPM(r/min)
Power(kw)
Torque(N.M)
Torque Grade(T/A3)
SHT-95 300 350 5570 11.74
400 450 5371 11.32
500 550 5252 11.07
600 650 5173 10.9
800 900 5371 11.31
SHT-85 300 220 3501 11.23
400 315 3760 12.07
500 400 3820 12.25
600 500 3979 12.76
800 600 3581 11.49
SHT-75 300 160 2546 11.79
400 220 2626 12.16
500 250 2387 12.37
600 315 2506 11.61
800 450 2685 12.43
SHT-65
300 110 1753 12.34
400 132 1575 11.2
500 160 1528 10.86
600 220 1750 12.45
800 280 1671 11.88
SHT-58
300 90 1432 12.59
400 110 1313 11.87
500 160 1528 13.81
600 200 1591 14.39
800 250 1492 13.49
SHT-52
300 55 875 11.01
400 75 895 11.26
500 90 850 10.69
600 110 870 10.94
800 132 787 9.9
SHT-50
300 55 875 11.82
400 75 895 12.08
500 90 850 11.74
600 110 870 11.74
800 132 787 10.63
SHT-40
300 30 477 11.63
400 45 537 13.08
500 55 525 12.79
600 65 517 12.59
800 90 537 13.08
SHT-35 500 30 286 10.61
600 37 294 10.9
800 50 298 11.05
SHT-30
600 22 175 9.96
800 30 179 10.18
1000 37 177 10.05
SHT-25
600 15 238 11.21
800 18.5 220 10.37
900 22 233 10.96
SHT-20
600 7.5 119 10.23
800 11 131 11.26


Housing Dimensions
Model AA A B1 B2 B3 H h1 h2 m1 m2 m3 m4 m5 C e1 e2 e3 E F n-d3 L
SHT 95 78 1237 169 572 886 835 425 425 500 814 530 502 102.5 45 80 249 225 210 245 6-Φ32 1849
SHT85 67.8 1119 160 530 822 770 400 400 458 750 405 520 97 43 75 235 207 203.2 221.8 6-Φ32 1694
SHT75 60 946 130 470 696 695 400 400 398 624 376 376 97 43 64 194 160 155 210 6-Φ28 1452
SHT65 52 905 102 446 640 645 370 370 386 580 362.5 362.5 90 40 58 160 150 138 199 6-Φ28 1401
SHT58 48 905 102 446 640 645 370 370 386 580 362.5 362.5 90 40 58 160 150 142 199 6-Φ28 1401
SHT52 43 855 98 382 546 560 298 298 322 486 304 389 81 35 53 119 151 110 179 6-Φ22 1290
SHT50 42 855 98 382 546 560 298 298 322 486 304 389 81 35 53 119 151 111 179 6-Φ22 1290
SHT40 34.5 743 75 340 460 472 252 252 290 410 301 298 72 30 45 120 90 83.5 161.5 6-Φ22 1151
SHT35 30 719 52 326 420 452 252 252 282 376 297 292 65 30 44 96 86 76 139 6-Φ18 1084
SHT30 26 572 40 300 380 422 242 242 252 332 216 226 65 25 44 84 84 66 124 6-Φ18 900
SHT25 22 550 35 290 360 375 210 210 244 314 202 218 65 30 45 80 80 68 112 6-Φ17 849
SHT20 18 562 35 270 340 355 180 180 235 305 248 135 98 25 40 75 75 58 126.75 6-Φ15 814.5

Model
Input shaft
Output shaft
Coupling
Weight kg
d1
l L1 d2
L2 TA TB
L3 L4 L5
SHT95
Φ95m6
+0.035
+0.013
170 391 2M*26Z*30° 156 510 360 1231 35 385
SHT85
Φ85m6
+0.035
+0.013
170 356 DIN5480-W45*1.25*30° 150 420 300 1113 32 350
SHT75 Φ75m6
+0.03
+0.011
127 315 1.5M*26Z*45° 144 410 260 966 32 335
SHT65 Φ70m6
+0.03
+0.011
130.5 274 1.5M*26Z*45° 140 380 260 956 32 325
SHT58 Φ70m6
+0.03
+0.011
130.5 274 1.25M*28Z*45° 140 380 260 956 32 325
SHT52 Φ60m6
+0.03
+0.011
110 276 1M*28Z*45° 115 323 210 859 32 280
SHT50 Φ60m6
+0.03
+0.011
110 276 1M*28Z*45° 115 323 210 859 32 280
SHT40 Φ45m6
+0.025
+0.009
110 230 1M*20Z*45°
101.5 278 190 773 32 260
SHT35 Φ45m6
+0.025
+0.009
110 202 1M*18Z*45°
90 246 160 732 25 215
SHT30 Φ30m6
+0.021
+0.008
80 164 1M*16Z*45°
89 190 130 618 25 210
SHT25 Φ30m6
+0.021
+0.008
80 155 1M*13Z*45°
80 196 140 571 20 181
SHT20 Φ25m6
+0.021
+0.008
60 157 0.75M*14Z*45°
76 180 120 569 20 164


 
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