Effective Pipe Splitting Methods
TT Technologies hardened heat-treated steel cutting blades are available for splitting and replacing plastic service and main lines from 1/2-inch to 4 inches in diameter. The blade designs were developed by working directly with utilities to create optimum splitting head configurations. For service line and main line splitting, the splitting heads are paired with a Grundowinch cable pulling system or other cable pulling device.

GRUNDOSPLIT Pipe Splitting Tooling
Additional Information
Cutting Blade Options
Qty. | UOM | Part # | Description | # Blades | Cable Size | Host Pipe |
---|---|---|---|---|---|---|
1 | EA | 0900018 | 2 Blade Cutter – 1.00″ OD, 0.406 Pilot for 5/16″ Cable | 2 | 5/16″ | Copper, PE, PVC |
1 | EA | 0900082 | 4 Blade Cutter – 1.00″ OD, 0.406 Pilot for 5/16″ Cable | 4 | 5/16″ | PE, PVC |
1 | EA | 0900080 | 2 Blade Cutter – 1.25″ OD, 0.406 Pilot for 5/16″ Cable | 2 | 5/16″ | Copper, PE, PVC |
1 | EA | 0900081 | 4 Blade Cutter – 1.25″ OD, 0.406 Pilot for 5/16″ Cable | 4 | 5/16″ | PE, PVC |
1 | EA | 0900015 | 2 Blade Cutter – 1.26″ OD, 0.550 Pilot for 3/8″ Cable | 2 | 3/8″ | Copper, PE, PVC |
1 | EA | 09000108 | 4 Blade Cutter – 1.26″ OD, 0.550 Pilot for 3/8″ Cable | 4 | 3/8″ | PE, PVC |
1 | EA | 0900089 | 2 Blade Cutter – 1.50″ OD, 0.550 Pilot for 3/8″ Cable | 2 | 3/8″ | Copper, PE, PVC |
1 | EA | 0900114 | 4 Blade Cutter – 1.50″ OD, 0.600 Pilot for 3/8″ Cable | 4 | 3/8″ | PE, PVC |
1 | EA | 0900110 | 4 Blade Cutter – 1.26″ OD, 0.600 Pilot for 1/2″ Cable | 4 | 1/2″ | PE, PVC |
1 | EA | M T80100 | 4 Blade Cutter – 1.25″ OD, 0.680 Pilot for 3/8″ Cable | 4 | 3/8″ | PE, PVC |
1 | EA | MT80105 | 4 Blade Cutter – 1.51″ OD, 0.800 Pilot for 3/8″ Cable | 4 | 3/8″ | PE, PVC |
1 | EA | MT81100 | 2 Blade Cutter – 1.26″ OD, 0.725 Pilot for 3/8″ Cable | 2 | 3/8″ | Copper, PE, PVC |
1 | EA | MT80206 | 3 Blade Cutter – 1.50″ OD, 0.560 Pilot for 7/16″ Cable (Integral Body and Cutter) |
3 | 7/16″ | Copper, PE, PVC |
1 | EA | MT80207 | 3 Blade Cutter – 1.375″ OD, 0.560 Pilot for 3/8″ Cable (Integral Body and Cutter) |
3 | 3/8″ | Copper, PE, PVC |
1 | EA | 0900076 | 1 Blade Cutter – 0.437″ Radius, 0.500 Pilot for 3/8″ Cable | 1 | 3/8″ | Copper |
1 | EA | 0900072 | 1 Blade Cutter – 0.500″ Radius, 0.406 Pilot for 5/16″ Cable | 1 | 5/16″ | Copper |
1 | EA | 0900075 | 1 Blade Cutter – 0.620″ Radius, 0.406 Pilot for 5/16″ Cable | 1 | 5/16″ | Copper |
*** Must Know: ID of New Pipe – New Pipe Material
Miscellaneous Options
Qty. | UOM | Part # | Description |
---|---|---|---|
1 | EA | 1798 | 5/16″ Cable Strand Jaw |
1 | EA | 1618 | 3/8″ Cable Strand Jaw |
1 | EA | 1628 | 7/16″ Cable Strand Jaw |
1 | EA | 1638 | 1/2″ Cable Strand Jaw |
1 | EA | XS-JL-50-R | Pipe Pulling Grip (0.50″-0.75″) |
1 | EA | XS-A-DW-24 | Pipe Pulling Grip (0.75″-1.25″) |
1 | EA | XS-B-TW-32 | Pipe Pulling Grip (1.25″-2.00″) |
1 | EA | XS-C-TW-38 | Pipe Pulling Grip (2.00″-2.75″) |
1 | EA | 07003230 | 3/8″ Quick Link |
1 | EA | MS1064 | Cable Pulling Grip |
1 | LF | 00156101 | 5/16″ Aircraft Cable |
1 | LF | 00156102 | 3/8″ Aircraft Cable |
1 | LF | 00156103 | 7/16″ Aircraft Cable |
1 | LF | 00156105 | 1/2″ Aircraft Cable |
1 | EA | MT80004 | Jaw Breakaway Wrench |
Tail Puller Options
Qty. | UOM | Part # | Description | New Pipe ID |
Puller Type |
---|---|---|---|---|---|
1 | EA | 0900098 | 1.375″ OD Pulling Eye Puller | NA | Pulling Eye |
1 | EA | 0900099 | 1.750″ OD Pulling Eye Puller Expander Style | NA | Pulling Eye |
1 | EA | 0900101 | 2.000″ OD Pulling Eye Puller Expander Style | NA | Pulling Eye |
1 | EA | 0900102 | 2.250″ OD Pulling Eye Puller Expander Style | NA | Pulling Eye |
1 | EA | MT80405 | 1.38″ OD Threaded Type Puller | 0.437″ | Pipe Thread On |
1 | EA | MT80400 | 1.50″ OD Threaded Type Puller | 0.681″ | Pipe Thread On |
1 | EA | MT80407 | 1.38″ OD Threaded Type Puller | 0.860″ | Pipe Thread On |
1 | EA | MT80409 | 1.75″ OD Threaded Type Puller | 0.437″ | Pipe Thread On |
1 | EA | MT80415 | 1.75″ OD Threaded Type Puller | 1.325″ | Pipe Thread On |
1 | EA | MT80418 | 2.00″ OD Threaded Type Puller | 1.535″ | Pipe Thread On |
*** Must Know: ID of New Pipe – New Pipe Material
Body Options
Qty. | UOM | Part # | Description | Cable Size |
---|---|---|---|---|
1 | EA | 0900020 | 1.375″ OD Expander for 5/16″ and 3/8″ Cable | 5/16″ or 3/8″ |
1 | EA | 0900012 | 1.500″ OD Expander for 5/16″ and 3/8″ Cable | 5/16″ or 3/8″ |
1 | EA | MT80200 | 1.750″ OD Expander for 5/16″ and 3/8″ Cable | 5/16″ or 3/8″ |
1 | EA | MT80203 | 2.000″ OD Expander for 5/16″ and 3/8″ Cable | 5/16″ or 3/8″ |
1 | EA | MT80204 | 2.250″ OD Expander for 5/16″ and 3/8″ Cable | 5/16″ or 3/8″ |
1 | EA | MT80205 | 2.500″ OD Expander for 5/16″ and 3/8″ Cable | 5/16″ or 3/8″ |
Additional Accessories:
- Duct Rod
- Hydraulic Power Pack
- Cutting Heads
- Winch Cable
- Finger Grips
- Quick Links
GRUNDOCRACK SR.®
Grundocrack Sr. replaces sizes 1 1/2-inch through 2-inch
Replace 1 1/2-inch through 2-inch copper, galvanized, lead and plastic service lines quickly and easily with Grundocrack Sr.
The Grundocrack Sr. tool head is pulled through an existing service installation by a truck, backhoe or winch. Depending on the condition of the plastic or copper pipe, the tool head may split the old pipe as it travels through the line, pushing the fragments into the surrounding soil, while simultaneously pulling in the new pipe. In other cases, as it is with lead and galvanized steel pipe, Grundocrack Sr. will push/pull the old line out, in one piece, while pulling in the new pipe.
NOTE: Tool will not split galvanized steel or lead pipe.
Part # | Description | ||
---|---|---|---|
110999 | 2 3/4 -inch diameter Grundocrack Sr. Small Pipe Splitting System. Includes: Splitting Head, 5/8-inch x 75-foot Cable, Chicago Style Grip, Cable Grip. |
Included in Kit:
Part # | Description |
---|---|
0900009 | Mini Pipe Splitter |
0910090 | Cable Assembly 5/8″ x 75′ long * |
1628-16AT | Cable Grip |
GPGHMB | 1/2″ Shackle |
XS-C-TW-38 | Cable Grip (2″ – 2 3/4″) |
* Longer lengths of cable available upon request.
GRUNDOCRACK JR.®
Grundocrack Jr. replaces sizes 5/8-inch through 1 1/2-inch
Replace 5/8-inch through 1 1/2-inch copper, galvanized, lead and plastic service lines quickly and easily with Grundocrack Jr.
The Grundocrack Jr. tool head is pulled through an existing service installation by a truck, backhoe or winch. Depending on the condition of the plastic or copper pipe, the tool head may split the old pipe as it travels through the line, pushing the fragments into the surrounding soil, while simultaneously pulling in the new pipe. In other cases, as it is with lead and galvanized steel pipe, Grundocrack Jr. will push/pull the old line out, in one piece, while pulling in the new pipe.
NOTE: Tool will not split galvanized steel or lead pipe.
Part # | Description | ||
---|---|---|---|
110199 | 2.5 -inch diameter Grundocrack Jr. Small Pipe Splitting System Includes: Splitting Head, 3/8 -inch x 75-foot Cable, Chicago Style Cable Grip, 3/4- & 1-inch Pipe Adapter. |
Included in Kit:
Part # | Description |
---|---|
0900000 | Mini Pipe Splitter |
0910005 | Cable Assembly 3/8″ x 75′ long * |
1684-5 | Cable Grip |
02219816 | Pipe Coupler |
04753075 | Brass Fitting 3/4″ x 3/4″ MPT |
04753100 | Brass Fitting 1″ x 3/4″ MPT |
07063190 | Cutting Nipple 3/4″ to 1″ |
02130750 | Reducing Coupler |
* Longer lengths of cable available upon request.
Part # | Description | ||
---|---|---|---|
110399 | 2 1/2-inch diameter Grundocrack Jr. Small Pipe Splitting System Includes: Splitting Head, 3/8 -inch x 100-foot Cable, Chicago Style Cable Grip, 3/4 & 1-inch Pipe Adapter. |
Included in Kit:
Part # | Description |
---|---|
0900000 | Mini Pipe Splitter |
0910010 | Cable Assembly 3/8″ x 100′ long |
1684-5 | Cable Grip |
02219816 | Pipe Coupler |
04753075 | Brass Fitting 3/4″ x 3/4″ MPT |
04753100 | Brass Fitting 1″ x 3/4″ MPT |
07063190 | Cutting Nipple 3/4″ to 1″ |
02130750 | Reducing Coupler |
* Longer lengths of cable available upon request.
GRUNDOCRACK JR.-JR.®
Grundocrack Jr.-Jr. replaces sizes 1/2-inch through 3/4-inch
Replace 1⁄2-inch through 3⁄4-inch copper, galvanized, * Longer lengths of cable available upon request. lead and plastic service lines quickly and easily with Grundocrack Jr. Jr.
The Grundocrack Jr. Jr. tool head is pulled through an existing service installation by a truck, backhoe or winch. Depending on the condition of the plastic or copper pipe, the tool head may split the old pipe as it travels through the line, pushing the fragments into the surrounding soil, while simultaneously pulling in the new pipe. In other cases, as it is with lead and galvanized steel pipe, Grundocrack Jr. Jr. will push/pull the old line out, in one piece, while pulling in the new pipe.
NOTE: Tool will not split galvanized steel or lead pipe.
Part # | Description | ||
---|---|---|---|
110299 | 1 1/4 -inch diameter Grundocrack Jr.- Jr. Small Pipe Splitting System. Includes: Splitting Head, 1/4 -inch x 75-foot Cable, Chicago Style Grip, Cable Grip. |
Included in Kit:
Part # | Description |
---|---|
0900005 | Mini Pipe Splitter |
0910015 | Cable Assembly 1/4″ x 75′ long * |
1684-5 | Cable Grip |
02058400 | Nipple- 1/2″ x 1/2″ |
07070405 | Pulling Eye |
07003230 | Quick Link |
XS-JL-50-R | Cable Grip |
* Longer lengths of cable available upon request.
Trenchless Pipe Splitting for Gas and Water Services & Mains
During the process, small launch and exit pits are dug at either end of the service or main line being replaced. A winch cable is rodded from the exit pit, through the existing line, to the launch pit. The splitting head configuration is attached and then pulled through the existing line with a Grundowinch cable pulling system or other cable pulling device. The new service or main is pulled in behind the splitter head configuration.