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.
![](https://www.williamsform.com/wp-content/uploads/2020/01/strand-uncoiler.png)
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.