Hydraulic Roll Groover Hydraulic Roll Groover Hydraulic Roll Groover
Hydraulic Roll Groover
Hydraulic Roll Groover

Hydraulic roll groovers are used to form precision grooves on pipe ends for mechanical pipe joining. The grooving process uses hydraulic pressure and specially designed rollers to create accurate grooves on the pipe surface, providing a fast and reliable alternative to welding and threaded connections.

Model Sub-level Product Capacity Max. Wall Thickness
RG-1X 1"–8" Hydraulic Roll Groover 1"–8" (DN25–DN200 / O.D. 33–219 mm) Schedule 10/40 8 mm View
RG-7X 2"–8" Hydraulic Roll Groover 2"–8" (DN50–DN200 / O.D. 60–219 mm) Schedule 10/40 8 mm View
RG-3C 2"–8" Hydraulic Roll Grooving Tool 2"–6" (O.D. 60.3–168.3 mm) Schedule 10/40,
8" (O.D. 219.1 mm) Schedule 20
7.1 mm View
RG-2X 2"–12" Hydraulic Roll Groover 2"–12" Schedule 10/40 10 mm View
RG-2S 1"–12" Hydraulic Roll Groover 1"–12" Schedule 10/40 10 mm View
RG-5X 1"–12" Hydraulic Roll Grooving Machine 1"–12" Schedule 10/40,
10"–12" Schedule 10/20
8 mm View
RG-5A 1"–12" Hydraulic Roll Grooving Tool 1"–8" Schedule 10/40,
0"–12" Schedule 10/20
8 mm View
RG-8X 1"–12" Hydraulic Roll Grooving Tool, Optional 14"-16" Standard: 1"–12" (O.D. 33–324 mm) Schedule 10/40,
Optional: 14"–16"
12 mm View
RG-6X 2"–16" Hydraulic Roll Groover 2"–12" Schedule 10/40,
14"–16" Schedule 10/20
10 mm View
RG-4X 8"–24" Hydraulic Roll Groover 8"–16" Schedule 10/40,
18"–24" Schedule 10/20
13 mm View
RG-4X PRO 8"–24" Hydraulic Roll Groover 8"–16" Schedule 10/40,
18"–24" Schedule 10/20
13 mm View
RG-K32 8"–32" Hydraulic Roll Groover 8"–16" Schedule 10/40,
18"–32" Schedule 10/20
13 mm View
RG-2T 3/4"–8" Hydraulic Roll Groover Beading: 3/4"–8" (DN20–DN200),
Grooving: 2"–6" (DN50–DN150)
4 mm View
AG-2X 2"–12" Automatic Grooving Machine 2"–12" Schedule 10/40 10 mm View
AG-4X 8"–24" Automatic Grooving Machine 8"–24" 13 mm View
AG-8Z 2"–12" Automatic Grooving Machine Standard: 2"–12" (O.D. 60.3–323.9 mm),
Optional: 14"–16" (O.D. 355.6–406.4 mm)
11 mm View
GF-2X 2"–12" Pipe Fitting Roll Grooving Machine 2"–12", SCH 10/40 10 mm View
GF-4X 2"–24" Pipe Fitting Roll Grooving Machine 2"–24", SCH 10/40 13 mm View
GM-2X 2"–12" Groove End Reforming Machine 2"–12", SCH 10/40 10 mm View
GM-4X 2"–24" Groove End Reforming Machine 2"–24", SCH 10/40 10 mm View
Manual Roll Groover
Manual Roll Groover

The manual roll groover is designed for hand-operated grooving or use with a pipe threading machine drive. It can also be used as an attachment for hydraulic roll grooving systems.

Model Sub-level Product Capacity Max. Wall Thickness
RG-1M 1"–12" Manual Roll Groover 1"–12" (DN25–DN300 / O.D. 33.4–323.9 mm) 8 mm View
RG-2M 1"–6" Manual Roll Groover Standard: 1"–6" (DN25–DN150 / O.D. 33.4–168.3 mm),
Optional: 8"–12" (O.D. 219.1–323.9 mm) Roll Sets
7 mm View
RG-3M 1¼"–6" Manual Roll Groover 1 ¼"–4" (O.D. 42.2–114.3 mm) SCH 10/40;
5"–6" (O.D. 141.3–168.3 mm) SCH 10/20
7 mm View
RG-H1X 2"–8" Hydraulic Roll Groover Accessory 2"–4" SCH 10/40;
5"–8" SCH 10/20
6 mm View
RG-H2X 2"–12" Hydraulic Roll Groover Accessory Standard: 2"–12" SCH 10/40;
Optional: 1" Roll Set
10 mm View
Groove Cutting Machines
Groove Cutting Machines
Groove Cutting Machines

The groove cutting machine is an electric-driven system designed for cutting grooves on medium and large diameter carbon steel and stainless-steel pipes with heavy wall thickness. During operation, it clamps and rotates the pipe at a constant speed.

Model Sub-level Product Capacity Max. Wall Thickness
CG-2X 2"–12" Groove Cutting Machine 2"–12" (O.D. 60.3–323.9 mm) 35 mm View
CG-4X 8"–32" Groove Cutter 8"–32" 35 mm View
Pipe Cutting Machine, Steel Pipe Cutter
Pipe Cutting Machine, Steel Pipe Cutter
Pipe Cutting Machine, Steel Pipe Cutter

The hydraulic pipe cutting machine, by our brand Gruvmaster, is designed for straight, burr-free cutting of thin-wall steel pipes, carbon steel, stainless steel, ductile iron pipes, aluminum pipes, as well as PE and PVC pipes.

Model Sub-level Product Capacity Max. Wall Thickness
CM-8 2"–8" Hydraulic Pipe Cutting Machine 2"–8" (O.D. 60.3–219.1 mm) 8 mm View
CM-8X 1/2"–8" Hydraulic Pipe Cutting Machine 1/2"–8" (O.D. 21.3–219.1 mm) 6 mm View
CM-12 2"–12" Hydraulic Pipe Cutting Machine 2"–12", SCH 10/40 10 mm View
CM-20 8"–20" Hydraulic Pipe Cutting Machine 8"–20", SCH 10/40 12 mm View
PTC140 1/2"–5.5" Portable Pipe Cutting Machine 12–141 mm 3 mm View
Hole Cutting Tool
Hole Cutting Tool
Hole Cutting Tool

The pipe hole cutting tool from our brand Gruvmaster is designed for drilling holes up to 4 inches on steel pipes, aluminum pipes, PVC pipes, and other materials. Equipped with a 5/8" drill chuck, it supports various hole saw sizes and arbor types for different cutting requirements.

Model Sub-level Product Pipe Cutting Capacity Pipe Clamping Capacity
HC-1X 4.5" Pipe Hole Cutting Machine Up to 4" (O.D. 114.3 mm) 1 1/4"–8" (O.D. 32–219.1 mm) View
HC-2X 4.5" Pipe Hole Cutting Machine Up to 4" (O.D. 114.3 mm) 1 1/4"–8" (O.D. 32–219.1 mm) View

Established in 2005, WELPING is a dedicated manufacturer of metal pipe processing equipment with over two decades of expertise. Operating under our Gruvmaster brand, we specialize in comprehensive pipe fabrication equipment solutions, including hydraulic roll groovers, manual roll groovers, groove cutting machines, pipe cutting machines, and hole cutting tools.
Our metal pipe processing equipment is engineered for handling steel pipe, stainless steel pipe, galvanized pipe, and 20Mn high-strength steel pipe across construction, HVAC, gas networks, municipal water supply, and facility maintenance. With extensive manufacturing experience and OEM customization capabilities, we provide reliable pipe fabrication solutions for distributors, contractors, and industrial users worldwide.

2005Founded
20+Years of pipe equipment experience
1"–32"Pipe fabrication coverage
OEMColor, logo and configuration support