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The Gruvmaster AG-8Z roll grooving machine has been updated based on real job-site use.

The new version features a larger hydraulic power unit, a telescopic handle for easier movement, and an expanded pipe size range from 1″ to 16″.

This article explains the structural updates of the Gruvmaster RG-4X Pro based on the RG-4X. The upgrades focus on practical improvements, including a frame with integrated storage, a larger grooving assembly, reinforced pipe support, and upgraded positioning rollers. These changes enhance stability, durability, and control during long-term roll grooving operations.

Roll grooving machines require different roller materials for different pipe conditions. This article compares plated rollers and stainless steel rollers used on Gruvmaster roll grooving machines, focusing on thin-wall pipe applications, groove quality control, durability, and cost considerations. Selecting the correct roller set based on pipe wall thickness helps improve grooving consistency and overall processing reliability.

Photos from the Gruvmaster factory show roll grooving machines during final assembly. At this stage, machines undergo alignment, fastening, fine adjustment, and inspection. Each unit is assembled by hand following a consistent process to ensure stable structure, smooth operation, and reliable quality before shipment.

The RG-2M by Gruvmaster is a portable combination roll groover designed for 1"–6" pipe sizes. Featuring a compact structure and a new red-black appearance, it is suitable for on-site installation, maintenance, and renovation work. Photos show the current configuration and toolbox layout.

The RG-1X roll groover covers 1"–8" pipe sizes with a compact, integrated structure and stable hydraulic feeding. It suits both workshop and on-site use. Our factory is currently producing a batch of RG-1X units, reflecting strong demand and consistent manufacturing capability.

Gruvmaster roll groovers enter final assembly for overseas delivery. Coordinated production lines and full inspection ensure consistent quality and reliable supply for global customers.

The new Gruvmaster 219-630 is an upgraded heavy-duty roll grooving machine based on RG-4X, featuring a reinforced frame, larger supports, and enhanced precision.

Coming soon to market — stay tuned with Gruvmaster and Welping for updates.

Gruvmaster’s modern production line ensures consistent quality and precision in every roll grooving machine.

From assembly to testing, each unit is built with care and reliability, delivering powerful performance and meeting global demand efficiently.

Welping PTC140 desktop pipe cutting machine features a compact all-aluminum body and a 350 RPM high-speed motor, ideal for thin-walled steel, copper, aluminum, and PVC pipes. Portable, durable, and easy to operate for professional workshops.

Gruvmaster’s patented TitanSeal™ dual-seal system and One-Push™ fast-feeding technology redefine hydraulic reliability and efficiency in roll grooving. Both innovations, featured on the RG-8X flagship model, ensure leak-free, consistent, and high-performance operation for professionals.

The Gruvmaster AG-2X automatic roll grooving machine combines powerful performance and smart control for 2"–12" pipes, delivering efficient, precise, and safe grooving for both workshop and on-site use.

Welping showcased its 2025 innovations at the 138th Canton Fair, featuring the FX Series butt fusion machines and Gruv-X roll grooving machines. The exhibition offered new connections and global exposure, reinforcing Welping’s commitment to professional, efficient, and reliable pipe-welding solutions.

The Gruvmaster Gruv-X AG-8Z Automatic Roll Grooving Machine features a 1500 W motor, automatic depth control, and interlocking rollers, delivering precise and consistent grooves on 2″–12″ steel pipes for fire protection, HVAC, and industrial piping systems.