Sledge Drive Rock Anchor Systems
Quick, simple anchor designed to develop the full strength of the bar. Recommended for short anchors in rock or concrete. Available with 1-5/8" diamenter aluminum expansion shell. In temporary situations, bar may be removed and used again. Williams can supply custom length steel drive pipes at your request.
 |
|
With B1S
Smooth Rod
|
With B7S
All-Thread Coil Rod
|
With R61 Grade 75 or R50 Grade 60 All-Thread Rebar
|
|
| Steel Type |
Bar
Diameter |
Recommended Safe
Working Load to
2:1 Safety Factor |
Average
Ultimate
Strength |
Drill
Hole |
Part Number
B8S Cone / Shell
(B7S Cone / Shell) |
|
B1S
Smooth Rod
B7S
All-Thread
Coil Rod
B8S
All-Thread
N.C. Rod
|
3/8"
(10 mm)
|
4.9 kips
(21.8 kN)
|
9.8 kips
(43.6 kN)
|
1-5/8"
(41 mm)
|
R4M03RB0 / R4A13
(R4MC3RB0 / R4A13)
|
|
1/2"
(12 mm)
|
9 kips
(40.0 kN)
|
18 kips
(80.1 kN)
|
1-5/8"
(41 mm)
|
R4M04RB0 / R4A13
(R4MC4RB0 / R4A13)
|
|
5/8"
(16 mm)
|
11.3 kips
(40.0 kN)
|
22.5 kips
(100 kN)
|
1-5/8"
(41 mm)
|
R4M05RB0 / R4A13
(R4MC5RB0 / R4A13)
|
|
3/4"
(20 mm)
|
18 kips
(80.0 kN)
|
36 kips
(160 kN)
|
1-5/8"
(41 mm)
|
R4M06RAC / R4A13
(R4MC6RAC / R4A13)
|
|
7/8"
(22 mm)
|
29 kips
(129 kN)
|
58 kips
(258 kN)
|
1-5/8"
(41 mm)
|
R4M07RAC / R4A13
(R4MC7RAC / R4A13)
|
|
R50
Grade 60
All-Thread
Rebar
|
#4 - 1/2"
(12 mm)
|
9 kips
(40 kN)
|
18 kips
(80.1 kN)
|
1-5/8"
(41 mm)
|
R4MG4RAC / R4A13
|
|
#5 - 5/8"
(16 mm)
|
13.8 kips
(62 kN)
|
27.9 kips
(124 kN)
|
1-5/8"
(41 mm)
|
R4MG5RAC / R4A13
|
|
R61
Grade 75
All-Thread
Rebar
|
#6 - 3/4"
(20 mm)
|
22 kips
(97.9 kN)
|
44 kips
(196 kN)
|
1-5/8"
(41 mm)
|
R4MG6RAC / R4A13
|
|
(044) 256-20-55 
(067) 246-27-20
(093) 965-44-20 
(095) 270-79-20
