Sockets (also called bells) look simple, but they’re a tightly controlled “interface part”: the pipe must seal, align, and survive handling without cracks or leaks. Because socket formation involves heating, reshaping, vacuum/pressure forming, calibration, and cooling, small process drifts can create repeatable defects.

A belling machine (socketing machine) is the downstream “connection-maker” in a pipe extrusion line: it forms the socket (bell) so pipes can be joined quickly with rubber ring sealing, solvent cement, or other coupling methods.

Pipe bending is an essential manufacturing process across industries such as automotive, HVAC, construction, shipbuilding, furniture, fitness equipment, and metal fabrication. As factories expand capacity and move toward automation, choosing the right bending machine becomes a key strategic decision.

Bending plastic pipes is a core process in plumbing, drainage, industrial piping, and infrastructure projects. While fittings such as elbows and joints are widely used, precision pipe bending machines allow contractors and manufacturers to form smooth curves without increasing joint counts, reducing leakage points, and improving flow efficiency.

A belling machine (also called a socketing or end-forming machine) heats the end of a thermoplastic pipe—typically PVC, CPVC, PP, or PE—then reshapes it over a mandrel to create a socket (bell) that accepts another pipe’s spigot end. The bell may be smooth for solvent-cement joints or grooved to seat a rubber ring (elastomeric gasket).

The right belling machine model can transform your pipe manufacturing line. Advanced options, like those with PLC controls and IoT features, boost output and lower maintenance costs. Electric-driven systems suit high-volume runs, while hydraulic-driven machines handle large diameters. Precise, consistent belling means fewer defects, better socket quality, and less downtime.

You rely on this equipment to create flared ends, known as bells, which allow pipes to connect securely. The machine ensures each bell is precise and uniform, boosting your production efficiency and reducing costly errors.

In today’s plastic pipe manufacturing, efficiency is essential for success. Automated production lines ensure consistent quality, boost output, and lower operational costs. Within this ecosystem, the belling machine plays a crucial role in creating socketed ends for pipe joining.