Strand Installation Equipment
Open Frame Hydraulic Jack Assembly
Used for testing and prestressing multi-strand anchors. Available with up to 13” center hole. Unit comes with hydraulic jack, pump, gauge, hoses, stressing head assembly and chairs as required.
Vertical Strand Anchor Uncoiler
The Williams Vertical Uncoiler can be utilized to install up to a 61 strand anchor. The uncoiler is a safe and cost effective strand anchor installation solution while minimizing damage to the corrosion protection sleeves. Contact a Williams representative for a monthly rental rate.
| Jack Capacity |
Wedge Plate |
Pump Method |
Jack Height |
Open Frame Stressing Chair Size |
Stressing Head Size (Dia x Height) |
Ram Travel |
Minimum Total Jack Assy Height |
Ram Area |
Approx Total Jack Assy Weight |
Jack Minimum ID |
|---|---|---|---|---|---|---|---|---|---|---|
| 100 tons (890 kN) |
C4.6 | Air or Electric Double Acting |
13-1/2” (343 mm) |
9” SQ x 12” H (229 mm x 305 mm) |
6”x 4-1/4” (152 mm x 108 mm) |
6” (152 mm) |
31” (787 mm) |
20.63 in² (133 cm²) |
255 lbs (116 kg) |
3.13” (80 mm) |
| 200 tons (1779 kN) |
C4.6 C7.6 |
Air or Electric Double Acting |
16” (406 mm) |
12” SQ x 15” H (305 mm x 381 mm) |
6-1/4” x 6-1/2” (159 mm x 165 mm) |
8” (203 mm) |
39” (991 mm) |
40.45 in² (261 cm²) |
595 lbs (270 kg) |
4.06” (103 mm) |
| 200 tons (1779 kN) |
C4.6 C7.6 |
Air or Electric Double Acting |
23-1/2” (597 mm) |
12” SQ x 22” H (305 mm x 559 mm) |
6-1/4” x 6-1/2” (159 mm x 165 mm) |
14” (356 mm) |
52” (1321 mm) |
40.45 in² (261 cm²) |
870 lbs (395 kg) |
4.06” (103 mm) |
| 200 tons (1779 kN) |
C4.6 C7.6 |
Air or Electric Double Acting |
25-1/2” (648 mm) |
12” SQ x 22” H (305 mm x 559 mm) |
6-1/4” x 6-1/2” (159 mm x 165 mm) |
15” (381 mm) |
54” (1372 mm) |
47.10 in² (304 cm²) |
1046 lbs (474 kg) |
4.06” (103 mm) |
| 300 tons (2669 kN) |
C9.6 C12.6 |
Air or Electric Double Acting |
28-1/2” (724 mm) |
13” DIA x 23” H (330 mm x 584 mm) |
7-1/2” x 7-1/2” (191 mm x 191 mm) |
15” (381 mm) |
66” (1676 mm) |
78.54 in² (507 cm²) |
1460 lbs (662 kg) |
5.50” (140 mm) |
| 600 tons (5978 kN) |
C19.6 C22.6 |
Electric or Gas Double Acting |
30” (762 mm) |
17-1/2” DIA x 25” H (445 mm x 635 mm) |
10” x 8-1/2” (254 mm x 216 mm) |
15” (381 mm) |
62” (1575 mm) |
122.5 in² (790 cm²) |
3428 lbs (1550 kg) |
8” (203 mm) |
| 750 tons (7473 kN) |
C27.6, C31.6 C37.6 |
Electric or Gas Double Acting |
35” (889 mm) |
22” DIA x 37” H (559 mm x 940 mm) |
11-3/4” x 10” (298 mm x 254 mm) |
18” (457 mm) |
81” (2057 mm) |
170.4 in² (1100 cm²) |
5179 lbs (2349 kg) |
9” (229 mm) |
| 1500 tons (14946 kN) |
C55.6 C61.6 |
Electric or Gas Double Acting |
43” (1054 mm) |
24” DIA x 57” H (588 mm x 1448 mm) |
20” x 11” (508 mm x 279 mm) |
18” (457 mm) |
107” (2718 mm) |
300.4 in² (1940 cm²) |
9335 lbs (4230 kg) |
13” (330 mm) |
Stressing Heads – RSXSHPK
The stressing head applies a temporary stressing force to the tendon and maintains the load until the lock-off load is transferred to the anchor head. The stressing head assembly should be used in all applications to insure uniform strand tension. Anti-seize compound is available to assist stressing head release.
Stressing Chairs – RSXSCP
The stressing Chair utilizes a keeper plate to adjust to an applicable distance for 3-part wedge sets. The stressing chair assembly can be used for proof testing of the strand anchor assembly, incremental lock-off loading, or typical installation loading.
