Machine Screw Jack - Inverted Anti-backlash Translating
1/4 Ton to 50 Ton
Anti-backlash Machine Screw Jacks minimize backlash, but should not be used to completely eliminate backlash. While it may be desirable to totally eliminate backlash, the result would be a lock-up of lifting shaft and drive sleeve.
Used when reversible load conditions require precision positioning control. Adjustable models reduce backlash to approximately 0.003".
The lash between the drive sleeve thread and the lift screw thread is controlled by adjusting the top cover. This changes the relative distance between the drive sleeves and compensates for lash. The drive sleeve is split, resulting in reduced life. Machine Screw Jack Home Page
| Details | Performance Specifications | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Product | Capacity [Ton] | Gear Ratio | Turns of Worm Per Inch Travel | Torque to Raise 1 lb. [in-lb] | Lifting Screw Diameter [in] | Screw Lead [in] | Maximum Allowable Input [hp] | Maximum Input Torque [in-lb] | Maximum Worm Speed at Rated Load [rpm] | Maximum Load at 1750 RPM [lb] | |
| ActionJac MJAB-20-I 5:1 | 0.5 | 5:1 | 20 | 0.0190 | 0.50 | 0.250 | 0.33 | 19.3 | 1090 | 600 | Specs Configure/Quote |
| ActionJac MJAB-25-I 5:1 | 0.5 | 5:1 | 25 | 0.0210 | 0.63 | 0.200 | 0.33 | 20.7 | 1040 | 560 | Specs Configure/Quote |
| ActionJac MJAB-40-I 5:1 | 0.5 | 5:1 | 40 | 0.0170 | 0.63 | 0.125 | 0.33 | 16.7 | 1260 | 700 | Specs Configure/Quote |
| ActionJac MJAB-50-I 5:1 | 0.5 | 5:1 | 50 | 0.0140 | 0.50 | 0.100 | 0.33 | 13.5 | 1560 | 860 | Specs Configure/Quote |
| ActionJac MJAB-80-I 20:1 | 0.5 | 20:1 | 80 | 0.0080 | 0.50 | 0.250 | 0.17 | 8 | 1310 | 720 | Specs Configure/Quote |
| ActionJac MJAB-100-I 20:1 | 0.5 | 20:1 | 100 | 0.0090 | 0.63 | 0.200 | 0.17 | 8.7 | 1210 | 670 | Specs Configure/Quote |
| ActionJac MJAB-160-I 20:1 | 0.5 | 20:1 | 160 | 0.0070 | 0.63 | 0.125 | 0.17 | 7 | 1500 | 830 | Specs Configure/Quote |
| ActionJac MJAB-200-I 20:1 | 0.5 | 20:1 | 200 | 0.0060 | 0.50 | 0.100 | 0.17 | 5.7 | 1800 | 1000 | Specs Configure/Quote |
| ActionJac 1AB-MSJ-I 5:1 | 1 | 5:1 | 25 | 0.0225 | 0.75 | 0.200 | 0.50 | 45 | 700 | 800 | Specs Configure/Quote |
| ActionJac 1AB-MSJ-I 20:1 | 1 | 20:1 | 100 | 0.0105 | 0.75 | 0.200 | 0.25 | 21 | 750 | 857 | Specs Configure/Quote |
| ActionJac 2AB-MSJ-I 6:1 | 2 | 6:1 | 24 | 0.0250 | 1.00 | 0.250 | 2.00 | 100 | 1260 | 2881 | Specs Configure/Quote |
| ActionJac 2AB-MSJ-I 12:1 | 2 | 12:1 | 48 | 0.0154 | 1.00 | 0.250 | 1.50 | 62 | 1525 | 3486 | Specs Configure/Quote |
| ActionJac 2AB-MSJ-I 24:1 | 2 | 24:1 | 96 | 0.0105 | 1.00 | 0.250 | 0.50 | 42 | 750 | 1715 | Specs Configure/Quote |
| ActionJac 2RAB-MSJ-I 6:1 | 2 | 6:1 | 24 | 0.0250 | 1.00 | 0.250 | 2.00 | 100 | 1260 | 2881 | Specs Configure/Quote |
| ActionJac 2RAB-MSJ-I 12:1 | 2 | 12:1 | 48 | 0.0154 | 1.00 | 0.250 | 1.50 | 62 | 1525 | 3486 | Specs Configure/Quote |
| ActionJac 2RAB-MSJ-I 24:1 | 2 | 24:1 | 96 | 0.0105 | 1.00 | 0.250 | 0.50 | 42 | 750 | 1715 | Specs Configure/Quote |
| ActionJac 2.5AB-MSJ-I 6:1 | 2.5 | 6:1 | 24 | 0.0252 | 1.00 | 0.250 | 2.00 | 126 | 1000 | 2858 | Specs Configure/Quote |
| ActionJac 2.5AB-MSJ-I 12:1 | 2.5 | 12:1 | 48 | 0.0148 | 1.00 | 0.250 | 1.50 | 74 | 1277 | 3650 | Specs Configure/Quote |
| ActionJac 2.5AB-MSJ-I 24:1 | 2.5 | 24:1 | 96 | 0.0106 | 1.00 | 0.250 | 0.50 | 53 | 594 | 1699 | Specs Configure/Quote |
| ActionJac 5AB-MSJ-I 6:1 | 5 | 6:1 | 16 | 0.0376 | 1.50 | 0.375 | 3.00 | 376 | 500 | 2873 | Specs Configure/Quote |
| ActionJac 5AB-MSJ-I 24:1 | 5 | 24:1 | 64 | 0.0144 | 1.50 | 0.375 | 0.75 | 144 | 330 | 1875 | Specs Configure/Quote |
| ActionJac 10AB-MSJ-I 8:1 | 10 | 8:1 | 16 | 0.0377 | 2.00 | 0.500 | 5.00 | 753 | 418 | 4776 | Specs Configure/Quote |
| ActionJac 10AB-MSJ-I 24:1 | 10 | 24:1 | 48 | 0.0192 | 2.00 | 0.500 | 1.50 | 384 | 246 | 2813 | Specs Configure/Quote |
| ActionJac 15AB-MSJ-I 8:1 | 15 | 8:1 | 16 | 0.0407 | 2.25 | 0.500 | 5.00 | 1221 | 258 | 4424 | Specs Configure/Quote |
| ActionJac 15AB-MSJ-I 24:1 | 15 | 24:1 | 48 | 0.0218 | 2.25 | 0.500 | 1.50 | 654 | 144 | 2478 | Specs Configure/Quote |
| ActionJac 20AB-MSJ-I 8:1 | 20 | 8:1 | 16 | 0.0435 | 2.50 | 0.500 | 7.50 | 1740 | 272 | 6209 | Specs Configure/Quote |
| ActionJac 20AB-MSJ-I 24:1 | 20 | 24:1 | 48 | 0.0218 | 2.50 | 0.500 | 2.50 | 873 | 180 | 4130 | Specs Configure/Quote |
| ActionJac 30AB-MSJ-I 10 2/3:1 | 30 | 10 2/3:1 | 16 | 0.0452 | 3.38 | 0.667 | 11.00 | 2710 | 256 | 8764 | Specs Configure/Quote |
| ActionJac 30AB-MSJ-I 32:1 | 30 | 32:1 | 48 | 0.0235 | 3.38 | 0.667 | 3.50 | 1411 | 156 | 5364 | Specs Configure/Quote |
| ActionJac 35AB-MSJ-I 10 2/3:1 | 35 | 10 2/3:1 | 16 | 0.0493 | 3.75 | 0.667 | 11.00 | 3450 | 200 | 8035 | Specs Configure/Quote |
| ActionJac 35AB-MSJ-I 32:1 | 35 | 32:1 | 48 | 0.0257 | 3.75 | 0.667 | 3.50 | 1800 | 122 | 4904 | Specs Configure/Quote |
| ActionJac 50AB-MSJ-I 10 2/3:1 | 50 | 10 2/3:1 | 16 | 0.0555 | 4.50 | 0.667 | 16.00 | 5555 | 181 | 10382 | Specs Configure/Quote |
| ActionJac 50AB-MSJ-I 32:1 | 50 | 32:1 | 48 | 0.0301 | 4.50 | 0.667 | 5.00 | 3014 | 104 | 5982 | Specs Configure/Quote |