China Tube Softening Machine for Heating Element Production Manufacturer, Supplier, Factory

The Tube Softening Machine from Feihong (model FH‑147, 35‑80 kW) is a specialized short‑circuit annealing system designed to address a critical challenge in heating element manufacturing: the hardening and embrittlement of tube surfaces that occur after raw material processing or the filling‑and‑shrinking stage. When tubes become too hard, subsequent bending operations often lead to small‑radius cracks, fractures, or even explosive failure—costly defects that compromise product quality. Feihong, a leading China manufacturer and supplier of complete electrical heating tube equipment, has engineered this annealing machine to deliver consistent, controllable softening, enabling heating element producers to achieve tighter bend radii, lower rejection rates, and smoother downstream fabrication. Backed by CE and ISO certifications, the Feihong Tube Softening Machine for Heating Element Production is the professional choice for factories seeking reliable, high‑throughput tube conditioning.

Definition & Core Purpose

The Tube Softening Machine is a short‑circuit annealing device that uses electrical resistance heating to raise the temperature of metal heating tubes to a controlled level, followed by controlled cooling, thereby reducing surface hardness and restoring ductility. Its primary purpose is to prepare heating tubes for bending, coiling, or other shaping operations without the risk of cracking or rupture. By precisely managing the annealing length and temperature profile, the machine ensures that tubes maintain their dimensional accuracy while gaining the flexibility needed for complex geometries.

Key operational highlights include:

1. Full‑tube or local annealing – The system can treat the entire tube length or target specific zones, giving manufacturers the flexibility to soften only the areas that will undergo severe bending.

2. Adjustable annealing length – Supports tube lengths from 100 mm up to 4000 mm, accommodating a wide variety of heating element designs.

3. Multi‑branch processing – Each operation cycle can handle 1 to 4 tubes simultaneously, significantly boosting throughput for high‑volume production lines.

4. Automation‑ready configuration – Optional automatic feeding and unloading systems transform the machine into a fully automated work cell, reducing manual intervention and increasing consistency.

Core Technical Advantages

What sets the Feihong Tube Softening Machine for Heating Element Production apart from conventional annealing equipment is its combination of precision control, robust construction, and operational flexibility. Each advantage directly addresses the pain points of heating tube manufacturers.

● Short‑circuit annealing technology – The machine employs direct resistance heating (short‑circuit principle), which generates heat uniformly across the tube wall. This method is significantly more energy‑efficient than furnace annealing and allows for rapid heating and cooling cycles, minimizing oxidation and scaling on the tube surface.

● Adjustable power output (35–80 kW) – The power can be tuned to match different tube materials, diameters, and wall thicknesses, ensuring optimal softening results without overheating or under‑treating the workpiece.

● Precision length control – With an annealing length range of 100–4000 mm, the system accommodates everything from short cartridge heaters to long tubular elements used in industrial applications.

● Localized annealing capability – Instead of softening the entire tube, operators can target only the bending zones, preserving the hardness of straight sections where strength is required. This feature is particularly valuable for heating elements that combine rigid support portions with flexible bend areas.

● Sturdy mechanical design – The machine’s compact footprint (1100 × 650 × 800 mm for 1‑meter tube length) and 500 kg weight reflect a heavy‑duty build that ensures long‑term stability and minimal vibration during operation.

Technical Specifications

Application Fields & Use Cases

The Tube Softening Machine for Heating Element Production is deployed across a broad spectrum of heating element manufacturing environments, ranging from small‑batch specialty shops to large‑scale industrial production lines.

1. Domestic appliance heating elements – Rice cookers, coffee makers, water heaters, and ovens all require tubular heaters with tight bends. The annealing process ensures that these bends can be formed without cracking, improving product reliability and safety.

2. Industrial heating equipment – Cartridge heaters, band heaters, and tubular elements used in packaging machinery, plastic processing, and chemical plants benefit from the improved ductility provided by this machine, enabling complex shapes that fit confined spaces.

3. Hot runner systems – In injection molding, hot runner heating tubes often require precise bends to navigate around mold cores. The Feihong annealing machine delivers the consistent softening needed for these demanding applications.

4. Aerospace and military applications – Feihong has successfully developed specialized electrical heating tube equipment for aerospace and military sectors, where material integrity and performance under extreme conditions are non‑negotiable.

Quality Assurance & Certifications

Feihong’s commitment to quality is embedded in every Tube Softening Machine. The company’s manufacturing processes are built on decades of experience and are supported by internationally recognized certifications that validate product reliability and safety.

● CE certification – Ensures the machine complies with European health, safety, and environmental protection standards.

● ISO certification – Reflects Feihong’s adherence to international quality management system requirements, covering everything from design and production to after‑sales service.

● National high‑tech enterprise certification – Recognizes Feihong’s technological innovation capabilities and R&D investment.

● 7A high credit enterprise certification – Demonstrates the company’s strong credit standing and reliability in business transactions.

In addition to these certifications, Feihong operates six dedicated workshops, including a powder filling locomotive room, a pipe shrinking locomotive room, a machining center, a mold production workshop, a raw material cutting workshop, and a machine assembly workshop. This vertically integrated production capacity ensures strict quality control at every stage of manufacturing.

Why Choose Feihong

With over three decades of specialization in electrical heating tube equipment, Feihong has earned a reputation as a premier China manufacturer and supplier of the Tube Softening Machine for Heating Element Production. Choosing Feihong means partnering with a company that understands the nuances of heating tube production from end to end.

1. Comprehensive product line – Feihong manufactures the full set of heating tube production equipment, including pipe straightening machines, wire winding machines, pipe benders, pipe filling machines, pipe shrinker machines, spot welders, and ultrasonic cleaning equipment. This means customers can source multiple machines from a single, trusted supplier, simplifying procurement and ensuring compatibility across the production line.

2. Customization capability – Feihong has successfully developed many kinds of electrical heating tube equipment with special structures according to customer demands. The Tube Softening Machine can be equipped with automatic feeding and unloading systems, turning it into a fully automated solution tailored to specific production requirements.

3. Global reach – Feihong’s heating tube machines have been sold to numerous countries, including Canada, the USA, India, Malaysia, Vietnam, Singapore, Turkey, and Syria. This international presence reflects the company’s ability to meet diverse market standards and customer expectations.

4. Industry‑proven reliability – With 30 years of experience and a factory comprising six workshops, Feihong has the production capacity and technical expertise to deliver machines that perform consistently under demanding production conditions.

Summary

The Tube Softening Machine from Feihong is a purpose‑built annealing solution that tackles the brittleness and cracking challenges faced by heating tube manufacturers. With adjustable power (35–80 kW), flexible annealing length (100–4000 mm), multi‑branch operation (1–4 tubes), and optional automation integration, this machine delivers consistent softening results that improve bendability, reduce scrap, and enhance overall production efficiency. Backed by CE, ISO, and other certifications, and supported by a company with over 30 years of industry leadership, the Feihong Tube Softening Machine is the reliable choice for heating element producers worldwide.

Frequently Asked Questions

Q: What types of heating tubes can the Tube Softening Machine process?

A: The machine is designed to process a wide range of metal heating tubes commonly used in heating element production, including stainless steel, Incoloy, and copper tubes. The adjustable power output (35–80 kW) allows operators to fine‑tune the annealing parameters to suit different tube materials, diameters, and wall thicknesses. Whether you are manufacturing tubular heaters for domestic appliances, industrial equipment, or hot runner systems, this machine provides the flexibility to handle diverse workpiece specifications.

Q: Can the machine perform localized annealing, or does it only treat the full tube length?

A: The Feihong Tube Softening Machine for Heating Element Production supports both full‑tube annealing and localized annealing. This is a key advantage for heating element manufacturers who need to soften only the bending zones while maintaining the hardness of straight sections. Localized annealing reduces energy consumption and preserves the mechanical strength of areas that do not require bending, resulting in a superior finished product.

Q: Is the machine compatible with automated production lines?

A: Yes. The machine can be equipped with optional automatic feeding and automatic unloading structures, transforming it into a fully automated annealing workstation. This integration minimizes manual handling, reduces operator fatigue, and ensures consistent processing cycle times—ideal for high‑volume heating element production environments.

Q: What certifications does the Feihong Tube Softening Machine hold?

A: Feihong’s products have passed CE certification, ISO certification, national high‑tech enterprise certification, and 7A high credit enterprise certification. These accreditations demonstrate the machine’s compliance with international safety, quality, and environmental standards, giving customers confidence in the equipment’s reliability and performance.

Q: How does the short‑circuit annealing process compare to traditional furnace annealing?

A: Short‑circuit annealing uses direct electrical resistance heating, which generates heat uniformly across the tube wall and allows for rapid heating and cooling cycles. This method is more energy‑efficient than furnace annealing, reduces oxidation and scaling on the tube surface, and provides precise control over the annealing temperature and length. The result is a cleaner, more consistent softening effect that is particularly well‑suited for high‑precision heating tube applications.