Prestress/Post-Tensioning Jack Calibration
Last edit date: 1/24/2025
| Company | Jack Number |
Tons | Area (in2) |
Stroke (in) |
Numerical Display |
Gauge Factor |
Expiration Date |
Gauges | Notes |
|---|---|---|---|---|---|---|---|---|---|
| Access Limited | GFP20015062824 | 200 | 39.89 | 15 | 2588 | 3.009 | 7/23/2025 | GFP20015062824 A&B | |
| Drill Tech Drilling & Shoring | 120-3-2 | 120 | 26.70 | 3 | 1747 | 4.459 | 7/2/2025 | 120-3-2 A/B | |
| Drill Tech Drilling & Shoring | 120-3-3 | 120 | 24.30 | 3 | 1768 | 4.403 | 5/2/2025 | 120-3-3 A/B | |
| Drill Tech Drilling & Shoring | 175-8-2 | 175 | 37.57 | 8 | 2418 | 3.221 | 7/2/2025 | 175-8-2 A&B | |
| Drill Tech Drilling & Shoring | 60-2-2 | 60 | 13.13 | 2 | 8328 | 0.934 | 5/2/2025 | 60-2-2 A/B | |
| Drill Tech Drilling & Shoring | 60-4-18 | 60 | 12.45 | 4 | 8006 | 0.973 | 6/19/2025 | 60-4-18 A&B | |
| Drill Tech Drilling & Shoring | 60-4-20 | 60 | 12.45 | 4 | 7929 | 0.980 | 1/15/2026 | 60-4-20 A/B | |
| Drill Tech Drilling & Shoring | 60-6-1 | 60 | 12.75 | 6 | 823 | 9.471 | 6/19/2025 | 60-6-1 A&B | |
| Drill Tech Drilling & Shoring | 60-6-2 | 60 | 12.75 | 6 | 808 | 9.748 | 1/16/2026 | DT 60 -6 -2 A & B | |
| Drill Tech Drilling & Shoring | DT 100-10-6 | 100 | 21.59 | 10 | 1377 | 5.668 | 1/15/2026 | DT 100-10-6 A&B | |
| Drill Tech Drilling & Shoring | DT 30-2-5 | 30 | 6.35 | 2 | 4580 | 1.700 | 5/2/2025 | DT30-2-5 A&B | |
| Drill Tech Drilling & Shoring | DT 30-2-6 | 30 | 6.35 | 2 | 4648 | 1.676 | 1/16/2026 | DT30-2-6 A&B | |
| Drill Tech Drilling & Shoring | DT 75-6-5 | 75 | 15.23 | 6 | 940 | 8.365 | 1/16/2026 | DT75-6-5 A&B | |
| Drill Tech Drilling & Shoring | DT100-6-4 | 100 | 21.59 | 6 | 1333 | 5.870 | 1/16/2026 | DT100-6-4 A/B | |
| Drill Tech Drilling & Shoring | DT100-6-5 | 100 | 21.59 | 6 | 1288 | 6.043 | 1/15/2026 | DT100-6-5 A/B | |
| Drill Tech Drilling & Shoring | DT150-10-7 | 150 | 31.47 | 10 | 1915 | 4.065 | 1/15/2026 | DT150-10-7 A&B | |
| Drill Tech Drilling & Shoring | DT150-6-11 | 150 | 30.00 | 6 | 1846 | 4.217 | 1/16/2026 | DT150-6-11 A/B | |
| Drill Tech Drilling & Shoring | DT150-6-12 | 150 | 30.00 | 6 | 1915 | 4.075 | 1/16/2026 | DT150-6-12 A/B | |
| Drill Tech Drilling & Shoring | DT150-6-3 | 150 | 30.22 | 6 | 1942 | 3.993 | 9/5/2025 | DT150-6-3 A&B | |
| Drill Tech Drilling & Shoring | DT170-8-4 | 170 | 45.52 | 8 | 2913 | 2.668 | 1/16/2026 | DT170-8-4 A/B | |
| Drill Tech Drilling & Shoring | DT220-8-4 | 220 | 58.52 | 8 | 3791 | 2.054 | 1/15/2026 | DT220-8-4 A/B | |
| Drill Tech Drilling & Shoring | DT30-4-17 | 30 | 7.39 | 4 | 4694 | 1.660 | 6/19/2025 | DT30-4-17 A&B | |
| Drill Tech Drilling & Shoring | DT30-4-9 | 30 | 6.35 | 4 | 4613 | 1.688 | 5/2/2025 | DT30-4-9 A/B | |
| Drill Tech Drilling & Shoring | DT30-6-4 | 30 | 6.35 | 6 | 4618 | 1.690 | 1/15/2026 | DT30/6/4 A&B | |
| Drill Tech Drilling & Shoring | DT30-6-8 | 30 | 6.35 | 6 | 3915 | 2.006 | 1/16/2026 | DT30-6-8 A&B | |
| Drill Tech Drilling & Shoring | DT300-10-2 | 300 | 74.66 | 10 | 4668 | 1.664 | 1/15/2026 | DT300-10-2 A&B | |
| Drill Tech Drilling & Shoring | DT300-8-1 | 300 | 68.92 | 8 | 4366 | 1.787 | 1/15/2026 | DT300-8-1 A&B | |
| Drill Tech Drilling & Shoring | DT350-6-1 | 350 | 70.93 | 6 | 4614 | 1.686 | 9/26/2025 | DT350-6-1 A/B | |
| Drill Tech Drilling & Shoring | DT50-6-5 | 50 | 10.3 | 6 | 6557 | 1.198 | 1/16/2026 | DT50-6-5 A&B | |
| Drill Tech Drilling & Shoring | DT50-6-8 | 50 | 10.3 | 6 | 6545 | 1.178 | 1/16/2026 | DT50-6-8 A&B | |
| Drill Tech Drilling & Shoring | DT500-12-1 | 500 | 141.86 | 12 | 9142 | 0.850 | 9/26/2025 | DT500-12-1 A&B | |
| Drill Tech Drilling & Shoring | DT60-4-13 | 60 | 12.45 | 4 | 7782 | 1.003 | 1/15/2026 | DT60-4-13 A&B | |
| Drill Tech Drilling & Shoring | DT60-4-4 | 60 | 12.31 | 4 | 7923 | 0.983 | 6/19/2025 | DT60-4-4 A&B | |
| Drill Tech Drilling & Shoring | DT600-12-1 | 600 | 121.48 | 12 | 7895 | 0.984 | 9/26/2025 | DT600-12-1 A&B | |
| Drill Tech Drilling & Shoring | DT75-6-8 | 75 | 15.23 | 6 | 986 | 7.900 | 1/15/2026 | DT75-6-8 A/B | |
| Drill Tech Drilling & Shoring | DT75-6-9 | 75 | 15.23 | 6 | 919 | 8.489 | 1/15/2026 | DT75-6-9 A/B | |
| DYWIDAG-Systems International | 019133 | 540 | 135.85 | 11 | 8516 | 0.892 | 9/16/2025 | 6-20584 / 6-20570 | |
| DYWIDAG-Systems International | 01960 | 540 | 135.85 | 11 | 8603 | 0.892 | 9/16/2025 | 6-20455 / 6-30524 | |
| DYWIDAG-Systems International | 01977 | 540 | 135.85 | 11 | 8606 | 0.890 | 9/16/2025 | 6-30644 / 6-30668 | |
| DYWIDAG-Systems International | 01985 | 540 | 135.85 | 11 | 8660 | 0.891 | 9/16/2025 | 6-20848 / 6-20795 | |
| DYWIDAG-Systems International | 04311 | 300 | 85.75 | 9.75 | 5349 | 1.415 | 9/16/2025 | 6-10552 / LB15 | |
| DYWIDAG-Systems International | 04313 | 300 | 85.25 | 9.75 | 5382 | 1.449 | 9/17/2025 | 6-20698 / 6-20731 | |
| DYWIDAG-Systems International | 110-062 | 110 | 36.50 | 6 | 2340 | 3.369 | 9/16/2025 | 6-20049/91006 | |
| DYWIDAG-Systems International | 188 | 20 | 6.28 | 8 | 3818 | 2.046 | 9/17/2025 | LB 218 / 6-20778 | |
| DYWIDAG-Systems International | 2001-022 | 40 | 7.95 | 8 | 4912 | 1.605 | 9/17/2025 | 6-20405 / 6-20808 | |
| DYWIDAG-Systems International | 2004-056 | 20 | 6.28 | 8 | 3793 | 2.057 | 9/17/2025 | 6245/ 6-20723 | |
| DYWIDAG-Systems International | 75-449 | 75 | 20.54 | 2 | 1278 | 6.114 | 9/17/2025 | 6-10085 / LB227 | |
| DYWIDAG-Systems International | 90155 | 40 | 7.95 | 8 | 4901 | 1.590 | 9/17/2025 | 6-20746 / 6-10496 | |
| DYWIDAG-Systems International | 90156 | 40 | 7.95 | 8 | 4883 | 1.598 | 9/17/2025 | 6-20258 / 050 | |
| DYWIDAG-Systems International | A-134 | 75 | 20.54 | 2 | 1270 | 6.134 | 9/17/2025 | 6-20385 / 6-20494 | |
| DYWIDAG-Systems International | B307 | 110 | 36.5 | 6 | 2359 | 3.331 | 9/16/2025 | GW584 / 6-30581 | |
| DYWIDAG-Systems International | B48 | 110 | 36.5 | 2 | 2238 | 3.468 | 9/17/2025 | 41C739 / 6-20636 | |
| DYWIDAG-Systems International | B91 | 110 | 36.5 | 2 | 2289 | 3.414 | 9/17/2025 | 6-20850 / 6-20552 | |
| DYWIDAG-Systems International | C1017 | 20 | 6.28 | 8 | 3727 | 2.095 | 9/17/2025 | 6-20687 / 6-10003 | |
| DYWIDAG-Systems International | DSI-2767 | 765 | 191.74 | 11.81 | 12117 | 0.626 | 9/16/2025 | LB236 / E61 | |
| DYWIDAG-Systems International | DSI-3307 | 765 | 191.74 | 11.81 | 12308 | 0.628 | 9/16/2025 | 6-30150 / 3307 | |
| DYWIDAG-Systems International | DSI-3609 | 110 | 36.5 | 2 | 2279 | 3.424 | 9/17/2025 | 6247 / 6-10537 | |
| DYWIDAG-Systems International | DSI-3713 | 110 | 36.5 | 6 | 2290 | 3.404 | 9/17/2025 | 6-30507 / 6-30477 | |
| DYWIDAG-Systems International | DSI-5510 | 168 | 46.99 | 9.88 | 2952 | 2.640 | 9/17/2025 | 343/5510G | |
| DYWIDAG-Systems International | DSI-6353 | 75 | 20.54 | 2 | 1280 | 6.103 | 9/17/2025 | 6-10517 / LB225 | |
| DYWIDAG-Systems International | DSI-8067 | 168 | 46.90 | 9.88 | 2981 | 2.615 | 9/17/2025 | 6-10564 / 6-30454 | |
| DYWIDAG-Systems International | HJ-8 | 150 | 40.9 | 10 | 2613 | 2.985 | 9/17/2025 | LB230/6-20797 | |
| Golden State Bridge, Incorporated | GSB 30-1 | 30 | 7.22 | 2.5 | 4567 | 1.706 | 3/25/2025 | GSB30-1 A/B | |
| Golden State Bridge, Incorporated | GSB 30-2 | 30 | 7.22 | 2.5 | 4643 | 1.677 | 4/15/2025 | GSB30-2 1A/1B | |
| Malcolm Drilling Company, Incorporated | GFP 30015092716 | 300 | 78.50 | 15 | 5063 | 1.539 | 5/28/2025 | GFP30015 A/B | |
| Neil's Controlled Blasting | NCB 100-03-2 | 100 | 20.60 | 3 | 1336 | 5.826 | 6/4/2025 | NCB 100-03-2 A&B | |
| Neil's Controlled Blasting | NCB 100-10-1 | 100 | 20.28 | 10 | 1387 | 5.614 | 6/4/2025 | NCB 100-10-1 A&B | |
| Neil's Controlled Blasting | NCB 170-12-1 | 170 | 45.52 | 12 | 2938 | 2.654 | 6/13/2025 | NCB 170-12-1 A&B | |
| Neil's Controlled Blasting | NCB 30-06-1 | 30 | 6.35 | 6 | 4095 | 1.901 | 6/4/2025 | NCB 30-6-01 A&B | |
| Neil's Controlled Blasting | NCB 30-06-2 | 30 | 6.35 | 6 | 4098 | 1.901 | 6/4/2025 | NCB 30-6-02 A&B | |
| Neil's Controlled Blasting | NCB 60-03-1 | 60 | 14.59 | 3 | 938 | 8.274 | 6/4/2025 | NCB 60-03-1 A&B | |
| Neil's Controlled Blasting | NCB 60-03-2 | 60 | 14.59 | 3 | 912 | 8.537 | 6/4/2025 | NCB 60-03-2 A&B | |
| Pacific Coast Drilling Company | PCDC 100 Ton 2 | 100 | 30.53 | 11.8 | 1951 | 3.989 | 5/22/2025 | PCDC 100 Ton A2&B2 | |
| Pacific Coast Drilling Company | PCDC 100 Ton-1 | 100 | 20.60 | 6.5 | 1373 | 5.669 | 1/21/2026 | PCDC 100 Ton-1 A1&B1 | |
| Pacific Coast Drilling Company | PCDC 150T | 150 | 31.77 | 8 | 1988 | 2.908 | 1/21/2026 | PCDC 150T A1 & B1 | |
| Pacific Coast Drilling Company | PCDC 200 Ton-1 | 200 | 42.01 | 8 | 2653 | 2.950 | 1/21/2026 | PCDC 200T A1&B1 | |
| Pacific Coast Drilling Company | PCDC 30 Ton 1 | 30 | 7.22 | 6 | 4891 | 1.591 | 1/21/2026 | PCDC 30 TON A1 & B1 | |
| Pacific Coast Drilling Company | PCDC 60 Ton 2 | 60 | 13.05 | 6 | 8277 | 0.942 | 1/21/2026 | PCDC 60 TON 2 A1 & B1 | |
| Pacific Coast Drilling Company | PCDC 60 Ton 3 | 60 | 13.05 | 6 | 7803 | 0.998 | 1/21/2026 | PCDC 60 Ton 3 B1 & B2 | |
| RMA - Richard Mills Associates | PT-1132 | 20 | 4.472 | 4 | 3079 | 2,527 | 3/18/2025 | PT-1132 A & B | |
| Schwager Davis Incorporated | 6-8-076 | 50 | 7.95 | 8 | 5067 | 1.540 | 12/9/2025 | 6-8-076 A&B | |
| Schwager Davis Incorporated | 6-8-140 | 23.5 | 7.95 | 8 | 5039 | 1.548 | 12/9/2025 | 6-8-140 A&B | |
| Schwager Davis Incorporated | CH 60-4-05 | 60 | 12.31 | 4 | 7980 | 0.978 | 12/9/2025 | CH60-4-04 A&B | |
| Schwager Davis Incorporated | CH 600-8-130 | 600 | 141.81 | 8 | 9037 | 0.863 | 11/14/2025 | CH 600-8-130 A&B | |
| Schwager Davis Incorporated | CH-150-8-4 | 150 | 29.95 | 8 | 1976 | 3.788 | 11/25/2025 | CH150-8-4 A&B | |
| Schwager Davis Incorporated | CH100-6-03 | 100 | 20.03 | 6 | 1288 | 6.061 | 12/9/2025 | CH100-6-03 A&B | |
| Schwager Davis Incorporated | CH100-6-08 | 100 | 20.03 | 6 | 1295 | 6.027 | 12/9/2025 | CH100-6-08 A/B | |
| Schwager Davis Incorporated | CH150-5-02 | 150 | 29.95 | 5 | 1938 | 4.025 | 11/25/2025 | CH150-5-02 A&B | |
| Schwager Davis Incorporated | CH300-8-101 | 300 | 78.54 | 8 | 4999 | 1.557 | 11/14/2025 | CH300-8-101 A&B | |
| Schwager Davis Incorporated | CH300-8-105 | 300 | 74.65 | 8 | 4624 | 1.667 | 1/14/2026 | CH300-8-105 A&B | |
| Schwager Davis Incorporated | CH500-6-01 | 500 | 116.58 | 6 | 7532 | 1.032 | 8/29/2025 | CH500-6-01 A&B | |
| Schwager Davis Incorporated | CH500-6-02 | 500 | 116.58 | 6 | 7428 | 1.048 | 1/14/2026 | CH500-6-02 A&B | |
| Schwager Davis Incorporated | CH500-6-03 | 500 | 116.58 | 6 | 7448 | 1.044 | 1/14/2026 | CH500-6-03A&B | |
| Schwager Davis Incorporated | CH500-6-04 | 500 | 116.58 | 6 | 7429 | 1.048 | 1/14/2026 | CH500-6-04 A&B | |
| Schwager Davis Incorporated | Ch60-4-04 | 60 | 12.31 | 4 | 7833 | 0.996 | 12/9/2025 | CH60-4-04 A&B | |
| Schwager Davis Incorporated | CH600-8-101 | 600 | 141.81 | 8 | 9049 | 0.861 | 11/14/2025 | CH600-8-101 A&B | |
| Schwager Davis Incorporated | CH600-8-103 | 600 | 141.81 | 8 | 8878 | 0.877 | 1/14/2026 | CH600-8-103 A&B | |
| Schwager Davis Incorporated | CH600-8-109 | 600 | 141.81 | 8 | 9014 | 0.865 | 11/14/2025 | CH600-8-109 A&B | |
| Schwager Davis Incorporated | CH600-8-127 | 600 | 141.81 | 8 | 9100 | 0.857 | 11/14/2025 | CH600-8-127 A/B | |
| Schwager Davis Incorporated | CH600-8-129 | 600 | 141.81 | 8 | 9088 | 0.857 | 1/14/2026 | CH600-8-129 A&B | |
| Schwager Davis Incorporated | DER-07 | 50 | 5.16 | 1 | 3330 | 2.328 | 1/14/2026 | DER-07 A/B | |
| Z Systems, Incorporated | 112-12-01 | 112 | 30.5257 | 11.8 | 1995 | 3.900 | 9/4/2025 | 112-12-01 A/B | |
| Z Systems, Incorporated | 225-12-01 | 225 | 58.5745 | 11.8 | 3827 | 2.031 | 9/4/2025 | 225-12-01 A/B |