Prestress/Post-Tensioning Jack Calibration
Last edit date: 10/1/2024
| 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 | |
| Alliance Diversified | ADEI-12-250 | 250 | 49.3 | 12 | 3205 | 2.425 | 11/20/2024 | ADEI-12-250 A/B | |
| Case Pacific Company | 200A | 200 | 40.45 | 8 | 2635 | 2.956 | 1/25/2025 | 200A 3G/200A G2 | |
| Condon - Johnson & Associates, Incorporated | CH300-12-01 | 300 | 84.23 | 12 | 5483 | 1.420 | 2/16/2025 | 300-12-01A&B | |
| Condon - Johnson & Associates, Incorporated | CJ 200 | 200 | 40.40 | 8 | 2642 | 2.940 | 2/16/2025 | CJ 200 A&B | |
| Condon - Johnson & Associates, Incorporated | CJ 909 | 150 | 30.00 | 6 | 1938 | 4.006 | 2/16/2025 | CJ 909 A&B | |
| Condon - Johnson & Associates, Incorporated | CJ 910 | 150 | 30.00 | 6 | 1943 | 4.006 | 2/16/2025 | CJ 910 A&B | |
| Condon - Johnson & Associates, Incorporated | CJ 911 | 100 | 21.59 | 6 | 14130 | 0.550 | 2/16/2025 | CJ 911 A&B | |
| Condon - Johnson & Associates, Incorporated | CJA-20210721-60T | 60 | 13.13 | 5.91 | 8550 | 0.912 | 2/16/2025 | CJ20210721 A&B | |
| Drill Tech Drilling & Shoring | 110-8-1 | 110 | 28.59 | 8 | 1958 | 3.974 | 3/7/2025 | DT 110-8-1 A/B | |
| Drill Tech Drilling & Shoring | 120-3-2 | 120 | 24.30 | 3 | 1779 | 4.339 | 11/29/2024 | 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 | 150-6-2 | 150 | 30.23 | 6 | 1963 | 3.967 | 3/7/2025 | 150-6-2 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 | 60-4-15 | 60 | 12.45 | 4 | 8043 | 0.961 | 11/29/2024 | 60-4-15 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 | 8179 | 0.952 | 1/16/2025 | 60-4-20 A/B | |
| Drill Tech Drilling & Shoring | 60-4-21 | 60 | 12.45 | 4 | 803 | 9.668 | 10/5/2024 | 60-4-21 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 | 60-8-2 | 60 | 12.08 | 8 | 1219 | 6.386 | 3/7/2025 | 60-8-2 A&B | |
| Drill Tech Drilling & Shoring | DT 100-10-6 | 100 | 21.59 | 10 | 1391 | 5.601 | 1/16/2025 | DT 100-10-6 A&B | |
| Drill Tech Drilling & Shoring | DT 100-10-7 | 100 | 21.59 | 10 | 1419 | 5.472 | 3/7/2025 | DT 100-10-7 A&B | |
| Drill Tech Drilling & Shoring | DT 100-6-3 | 100 | 21.59 | 6 | 1306 | 5.960 | 10/5/2024 | DT 100-6-3 A&B | |
| Drill Tech Drilling & Shoring | DT 250-6-1 | 250 | 49.30 | 6 | 3212 | 2.422 | 3/7/2025 | DT250-6-1 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 | 4582 | 1.700 | 5/2/2025 | DT30-2-6 A&B | |
| Drill Tech Drilling & Shoring | DT 30-4-18 | 30 | 7.39 | 4 | 4757 | 1.632 | 10/5/2024 | DT30-4-18 A&B | |
| Drill Tech Drilling & Shoring | DT 50-6-10 | 50 | 10.30 | 6 | 6718 | 1.159 | 10/5/2024 | DT 50-6-10 A&B | |
| Drill Tech Drilling & Shoring | DT 50-6-12 | 50 | 10.3 | 6 | 6508 | 1.198 | 1/16/2025 | DT 50-6-12 A&B | |
| Drill Tech Drilling & Shoring | DT 75-6-5 | 75 | 15.23 | 6 | 982 | 7.925 | 5/2/2025 | DT75-6-5 A&B | |
| Drill Tech Drilling & Shoring | DT 75-6-7 | 75 | 15.23 | 6 | 973 | 8.013 | 1/16/2025 | DT 75-6-7 A&B | |
| Drill Tech Drilling & Shoring | DT150-10-7 | 150 | 31.47 | 10 | 1934 | 4.027 | 1/16/2025 | DT150-10-7 A&B | |
| Drill Tech Drilling & Shoring | DT150-6-10 | 150 | 30 | 6 | 1959 | 3.975 | 3/7/2025 | DT150-6-10 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 | DT150-6-9 | 150 | 30 | 6 | 1965 | 3.971 | 10/5/2024 | DT150-6-9 A&B | |
| Drill Tech Drilling & Shoring | DT170-8-4 | 170 | 45.52 | 8 | 2954 | 2.635 | 9/5/2025 | DT170-8-4 A/B | |
| Drill Tech Drilling & Shoring | DT200-3-2 | 200 | 43.98 | 3 | 2866 | 2.691 | 11/29/2024 | 200-3-2 A&B | |
| Drill Tech Drilling & Shoring | DT220-8-4 | 220 | 58.52 | 8 | 3811 | 2.040 | 1/16/2025 | DT220-8-4 A/B | |
| Drill Tech Drilling & Shoring | DT30-4-13 | 30 | 7.39 | 4 | 4697 | 1.657 | 1/16/2025 | DT30-4-13 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 | 4607 | 1.690 | 1/16/2025 | DT30/6/4 A&B | |
| Drill Tech Drilling & Shoring | DT30-6-8 | 30 | 6.35 | 6 | 4023 | 1.936 | 10/5/2024 | DT30-6-8 A&B | |
| Drill Tech Drilling & Shoring | DT30-6-9 | 30 | 6.35 | 6 | 4057 | 1.917 | 1/23/2025 | DT30-6-9 A&B | |
| Drill Tech Drilling & Shoring | DT300-10-2 | 300 | 74.66 | 10 | 5071 | 1.533 | 1/16/2025 | DT300-10-2 A&B | |
| Drill Tech Drilling & Shoring | DT300-4-1 | 300 | 74.80 | 4 | 5065 | 1.538 | 3/7/2025 | DT300-4-1 A&B | |
| Drill Tech Drilling & Shoring | DT300-8-1 | 300 | 68.92 | 8 | 4394 | 1.774 | 1/16/2025 | DT300-8-1 A&B | |
| Drill Tech Drilling & Shoring | DT300-8-2 | 300 | 89.48 | 8 | 5832 | 1.338 | 3/7/2025 | DT300-8-2 A&B | |
| Drill Tech Drilling & Shoring | DT300-8-3 | 300 | 89.48 | 8 | 4471 | 1.742 | 3/7/2025 | DT300-8-3 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 | DT50-6-7 | 50 | 10.3 | 6 | 6522 | 1.194 | 3/7/2025 | DT50-6-7 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 | DT60-4-10 | 60 | 12.45 | 4 | 7824 | 0.994 | 3/7/2025 | DT60-4-10 A&B | |
| Drill Tech Drilling & Shoring | DT60-4-11 | 60 | 12.45 | 4 | 7760 | 1.004 | 1/16/2025 | DT60-4-11 A&B | |
| Drill Tech Drilling & Shoring | DT60-4-13 | 60 | 12.45 | 4 | 8123 | 0.958 | 1/16/2025 | 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 | |
| DYWIDAG-Systems International | 019133 | 540 | 135.85 | 11 | 8516 | 0.892 | 9/16/2025 | 6-20584 / 6-20570 | |
| DYWIDAG-Systems International | 019135 | 540 | 135.85 | 11 | 8514 | 0.900 | 3/12/2025 | 6-20141 / 6-20129 | |
| DYWIDAG-Systems International | 01960 | 540 | 135.85 | 11 | 8603 | 0.892 | 9/16/2025 | 6-20455 / 6-30524 | |
| DYWIDAG-Systems International | 01961 | 540 | 135.85 | 11 | 8625 | 0.890 | 3/11/2025 | 6-30749 / 6-30815 | |
| DYWIDAG-Systems International | 01968 | 540 | 135.85 | 11 | 8606 | 0.891 | 3/12/2025 | 6-10539 / 6-20759 | |
| DYWIDAG-Systems International | 01977 | 540 | 135.85 | 11 | 8606 | 0.890 | 9/16/2025 | 6-30644 / 6-30668 | |
| DYWIDAG-Systems International | 01984 | 540 | 135.85 | 11 | 8815 | 0.870 | 3/12/2025 | 6-10568 / 6-30402 | |
| DYWIDAG-Systems International | 01985 | 540 | 135.85 | 11 | 8660 | 0.891 | 9/16/2025 | 6-20848 / 6-20795 | |
| DYWIDAG-Systems International | 01987 | 540 | 135.85 | 11 | 8509 | 0.904 | 3/11/2025 | 6-20191 / 6-10347 | |
| 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 | 04314 | 300 | 85.25 | 9.75 | 5419 | 1.439 | 3/12/2025 | 6-10510 / 6-10313 | |
| DYWIDAG-Systems International | 04369 | 300 | 85.25 | 9.75 | 5374 | 1.426 | 3/11/2025 | 6-30765 / 6-30717 | |
| 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 | 2001-27 | 40 | 7.99 | 8 | 4919 | 1.588 | 3/12/2025 | 6-20725/ 6-30065 | |
| DYWIDAG-Systems International | 2004-056 | 20 | 6.28 | 8 | 3793 | 2.057 | 9/17/2025 | 6245/ 6-20723 | |
| DYWIDAG-Systems International | 5800 | 765 | 191.74 | 11.81 | 1207 | 6.349 | 3/12/2025 | 6-10609 / 6-30736 | |
| DYWIDAG-Systems International | 6657 | 765 | 191.74 | 11.81 | 12287 | 0.624 | 3/11/2025 | 6-20776 / 6-30779 | |
| 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 | B900 | 110 | 36.5 | 6 | 2291 | 3.395 | 3/12/2025 | 6-10398 / LB241 | |
| 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-02545 | 765 | 191.74 | 11.81 | 12175 | 0.630 | 3/11/2025 | 6-20183 / 6-20818 | |
| DYWIDAG-Systems International | DSI-2662 | 765 | 168.84 | 11.81 | 10332 | 0.755 | 3/11/2025 | E12 / 6-20706 | |
| 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-3479 | 500 | 138.70 | 9.8 | 9118 | 0.849 | 3/12/2025 | 6-30151/6-20536 | |
| 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-4483 | 765 | 191.74 | 4 | 12225 | 0.628 | 3/11/2025 | 6-20738 / 6-10538 | |
| DYWIDAG-Systems International | DSI-5510 | 168 | 46.99 | 9.88 | 2952 | 2.640 | 9/17/2025 | 343/5510G | |
| DYWIDAG-Systems International | DSI-5598 | 168 | 46.90 | 9.88 | 3021 | 2.582 | 3/12/2025 | 6-20574 / 8790G | |
| DYWIDAG-Systems International | DSI-6245 | 168 | 46.90 | 9.88 | 2960 | 2.635 | 3/12/2025 | 6-10436 / 6-10326 | |
| DYWIDAG-Systems International | DSI-6353 | 75 | 20.54 | 2 | 1280 | 6.103 | 9/17/2025 | 6-10517 / LB225 | |
| DYWIDAG-Systems International | DSI-6358 | 110 | 36.5 | 2 | 2160 | 3.611 | 3/12/2025 | G038 / 6-20780 | |
| DYWIDAG-Systems International | DSI-8066 | 168 | 46.90 | 9.88 | 3014 | 2.587 | 3/12/2025 | LB245/6-20406 | |
| DYWIDAG-Systems International | DSI-8067 | 168 | 46.90 | 9.88 | 2981 | 2.615 | 9/17/2025 | 6-10564 / 6-30454 | |
| DYWIDAG-Systems International | DSI-8485 | 168 | 46.90 | 9.88 | 2955 | 2.587 | 3/12/2025 | 6-10245 / LB232 | |
| DYWIDAG-Systems International | HJ-8 | 150 | 40.9 | 10 | 2613 | 2.985 | 9/17/2025 | LB230/6-20797 | |
| DYWIDAG-Systems International | RJ2006-3 | 246 | 49.3 | 6 | 3101 | 2.516 | 3/12/2025 | 6-10408 / 6-30344 | |
| Geostructural Engineering, Incorporated | AA2222223EKYAF | 60 | 12.73 | 6 | 831 | 9.374 | 1/11/2025 | 3209633 3&4 | |
| 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 | 42020 | 150 | 30.00 | 6 | 2671 | 3.026 | 12/1/2024 | 042020 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 100-1 | 100 | 20.60 | 6.5 | 1446 | 5.385 | 1/25/2025 | PCDC 100 TON A1&B1 | |
| Pacific Coast Drilling Company | PCDC 150T | 150 | 31.77 | 8 | 2071 | 3.761 | 1/25/2025 | PCDC 150T A1 & B1 | |
| Pacific Coast Drilling Company | PCDC 200 Ton-1 | 200 | 42.01 | 8 | 2731 | 2.851 | 1/25/2025 | PCDC 200T A1&B1 | |
| Pacific Coast Drilling Company | PCDC 30 -1 | 30 | 7.22 | 6 | 4468 | 1.744 | 1/25/2025 | PCDC 30 TON A1 & B1 | |
| Pacific Coast Drilling Company | PCDC 60 - 2 | 60 | 13.05 | 6 | 8308 | 0.937 | 1/25/2025 | PCDC 60 TON 2 A1 &B1 | |
| 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 | 5106 | 1.523 | 11/30/2024 | 6-8-076 A&B | |
| Schwager Davis Incorporated | 6-8-079 | 50 | 7.95 | 8 | 5048 | 1.543 | 11/30/2024 | 6-8-079 A&B | |
| Schwager Davis Incorporated | CH 60-4-05 | 60 | 12.31 | 4 | 7925 | 0.979 | 11/30/2024 | CH60-4-04 A&B | |
| Schwager Davis Incorporated | CH-150-8-4 | 150 | 29.95 | 8 | 2048 | 3.788 | 11/30/2024 | CH150-8-4 A&B | |
| Schwager Davis Incorporated | CH100-6-05 | 100 | 20.03 | 6 | 1288 | 6.022 | 11/30/2024 | CH100-6-06-A&B | |
| Schwager Davis Incorporated | CH150-5-1 | 150 | 29.95 | 5 | 1954 | 3.971 | 11/30/2024 | CH150-5-1 A&B | |
| Schwager Davis Incorporated | CH300-8-101 | 300 | 78.54 | 8 | 5076 | 1.528 | 11/30/2024 | CH300-8-101 A&B | |
| Schwager Davis Incorporated | CH300-8-107 | 300 | 74.65 | 8 | 4825 | 1.606 | 11/30/2024 | CH300-8-107 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 | CH600-8-103 | 600 | 141.81 | 8 | 9134 | 0.853 | 11/30/2024 | CH600-8-103 A&B | |
| Schwager Davis Incorporated | CH600-8-119 | 600 | 141.81 | 8 | 9180 | 0.845 | 11/30/2024 | CH600-8-119 A&B | |
| Schwager Davis Incorporated | CH600-8-128 | 600 | 141.81 | 8 | 9151 | 0.851 | 11/30/2024 | CH600-8-128 A&B | |
| Schwager Davis Incorporated | CH600-8-129 | 600 | 141.81 | 8 | 9460 | 0.850 | 11/30/2024 | CH600-8-129 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 |