The WP500 butt fusion machine is designed for welding HDPE and other thermoplastic pipes from 315–500mm. With a reinforced frame, stable hydraulic system, and precise heating control, it delivers reliable performance and easy operation, making it a trusted solution for municipal, industrial, and construction projects.

Urban gas pipelines require strict pressure testing, typically 0.6 MPa for 48 hours. HDPE pipes offer excellent strength, sealing, and corrosion resistance, ensuring long-term safety. Welping provides reliable welding equipment to support secure and durable urban infrastructure.

Groove depth is key to pipe joint reliability. Too shallow or too deep weakens the system. Gruvmaster roll grooving machines with depth lock knobs ensure precise grooves, meeting AWWA C606, FM, and UL standards for long-term safety.

Gruvmaster’s top roll grooving machines—RG-5X, RG-2M, and RG-1X—deliver reliable solutions for contractors. From powerful hydraulic roll groovers to portable manual pipe roll groovers, they ensure efficiency, precision, and durability in every piping project.

In butt fusion welding, single-size clamp inserts are crucial. They are specialized fittings inside machine clamps that secure pipes of specific diameters, ensuring pipe centering and stability during welding. With advantages like accurate alignment, time-saving, quality improvement and durability, Welping also offers high-quality ones matching its fusion welding machines.

This successful practice reinforces our belief that by relying on reliable equipment like the WP315A PRO and WELPING's standardized environment—and, more importantly, through every operator's strict adherence to procedures—we can consistently deliver high-quality welding results. We are committed to applying the lessons from this experience to every job site.

The foot pedal, also called a safety switch, is a key feature in roll grooving machines. It enables emergency stop, hands-free operation, better efficiency, less fatigue, and precise control. Gruvmaster equips multiple models with this feature for safer, more reliable work.

In a Libya water pipeline project, the Welping WP1600 butt fusion machine efficiently welded large-diameter HDPE pipes, delivering strong joints and boosting construction efficiency with easy operation.

The RG-8X flagship hydraulic roll grooving machine is built for heavy-duty pipe work. Featuring a leak-free system, high-speed efficiency, and precision anti-flare design, it meets international standards while ensuring safety and ease of use.

Gruvmaster introduces its new TiAlN (Titanium Aluminum Nitride)-coated roll sets, offering rust-free, oil-free, and 2–3× higher wear resistance. Now standard on the flagship RG-8X, they deliver smoother, more precise, and longer-lasting professional grooving performance.

Harsh weather can challenge any fusion machine. Mud, rain, cold, and heat all impact performance if left unprotected. This guide explains how to safeguard your FX and WP Series butt fusion machines through proper setup, temperature control, and maintenance. With the right precautions, you’ll ensure lasting reliability, stable pressure, and strong weld quality in any environment.

The Gruvmaster RG-1 Series offers four compact hydraulic roll grooving machines — RG-1A, RG-1B, RG-1C, and RG-1X — covering 1"–8" pipe sizes. Each model combines precision, durability, and smart design for different job requirements. The new RG-1B, featuring a lift-assist chassis and integrated toolbox, highlights Gruvmaster’s innovation in portable and efficient pipe grooving solutions.

Welping WP Q Series fully automatic hydraulic butt fusion machines deliver high-precision, data-recorded welding for HDPE gas and water pipelines. FX, A Pro, A, and B Series semi-automatic machines offer reliable manual control, cost efficiency, and flexibility — providing complete butt fusion welding solutions from intelligent automation to professional field applications.

Join Welping at the 138th Canton Fair. Discover our new 2-12" Automatic Grooving Machine and the redesigned Butt Fusion Welder with monolithic clamps for superior performance and ease of use.

Customer Story from Brazil: A nighttime HDPE pipe fusion project using the Welping WP500A. The machine ran smoothly and reliably, helping the crew complete their work safely and efficiently.

Nearly 200 RG-1M and RG-2M manual roll groovers have been assembled and are ready for shipment to the U.S. Each unit is tested for quality and designed for both manual and power-driven use, reflecting Gruvmaster’s reliable and versatile roll grooving solutions.

The WP40H extrusion welder reflects Welping’s pursuit of precision and reliability. Equipped with Swiss and German components, it delivers stable performance for PE and PP welding. Fifty units have completed final inspection and are ready for global shipment.

The AG-2X Automatic Roll Grooving Machine combines smart automation, strong power, and precise roller design to achieve efficient, consistent, and safe pipe grooving for professional use.

Welping showcased its 2025 innovations at the 138th Canton Fair, featuring advanced welding and grooving solutions for global pipeline projects.

Thank You to Our Valued Customer in Uruguay for Choosing Welping's Fully Automatic 355mm Butt Fusion Machine

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.

Gruvmaster’s patented TitanSeal™ and One-Push™ hydraulic systems ensure leak-free stability and faster, more precise roll grooving.