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

Caltrans contact: Structural Materials Testing Lab, smtl@dot.ca.gov