Your Professional L-shaped Spiral PTFE Heater Manufacturer!
Superb Heater Group Corrosion-Resistant Heater Factory is a manufacturing enterprise with years of experience in the research, design, and production of electric heating products. Our company has always been highly praised and trusted by customers for our excellent product quality and reliable after-sales service. As its business continues to expand, our products are now distributed across the entire country and exported overseas.
Since its founding, Superb Heater has adhered to a guiding principle of scientific and standardized management. We have established a customer-centric management system in areas such as product development, marketing, and quality assurance, laying a solid foundation for delivering high-quality products and services.
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why choose us
ISO 9001 Quality Management System-Certified
Flexible scheduling,Efficient production,Strong supervision, strictly controlling every step from raw materials to delivery
Specialized Customization
With over 15 years of R&D and manufacturing experience in Corrosion-Resistant Heater, we offer tailored solutions based on specific customer requirements.
Quality Assurance
Raw materials undergo rigorous inspection; every production process is subject to 100% in-process checking, and a full final inspection is implemented before shipment, ensuring consistent and reliable quality.
Customer-Centric
Our dedicated sales and technical teams provide professional consultation and comprehensive pre-sales & after-sales support to meet every customer need.
Advantages of L-shaped Spiral PTFE Heater
Superior Corrosion Resistance:
The heavy-wall PTFE sheath is inert to almost all aqueous acid, alkaline, pickling, and plating solutions.
Efficient Bottom Heating:
The "L" configuration sits at the bottom of the tank, ensuring that even with fluctuating liquid levels, the heater stays submerged for optimal convection and consistent heat.
Non-Stick & Cleanable:
The PTFE material minimizes buildup from harsh solutions, making it ideal for processes prone to scaling and reducing maintenance downtime.
Easy Installation:
As "over-the-side" heaters, they are easy to install, remove, and maintain without needing to drill holes in the tank side.
Space-Saving L-Shaped Design:
The L-shaped configuration is ideal for side-mounted installations and compact tank systems. It allows easier installation and maintenance without modifying the tank bottom structure, making it suitable for industrial production lines and OEM equipment integration.
Low Surface Watt Density for Longer Service Life:
The optimized low watt density design helps prevent PTFE overheating and protects the internal heating element from premature failure. This significantly extends heater lifespan and improves long-term operational stability.
Electroplating Industry
L-shaped Spiral PTFE Heaters are widely used in electroplating tanks for processes such as nickel plating, chrome plating, zinc plating, copper plating, and gold plating. Their excellent corrosion resistance makes them ideal for handling aggressive electroplating chemicals while maintaining stable solution temperatures.
PCB Manufacturing Industry
In PCB production lines, PTFE immersion heaters are commonly used for etching solutions, chemical cleaning tanks, and acid treatment systems. Stable temperature control helps improve production precision and ensures consistent PCB processing quality.
Chemical Processing Industry
Chemical plants use PTFE heaters for heating corrosive liquids in storage tanks, mixing systems, and process fluid equipment. The fluoropolymer-coated structure provides long-term durability in highly aggressive chemical environments.


Semiconductor Industry
Semiconductor manufacturing requires high-purity and contamination-free heating solutions. PTFE heaters are suitable for semiconductor cleaning systems and chemical processing tanks because of their excellent chemical resistance and clean surface properties.
Wastewater Treatment Systems
Industrial wastewater treatment often involves corrosive chemicals and temperature-sensitive processes. L-shaped Spiral PTFE Heaters are used in chemical dosing tanks, neutralization systems, and waste liquid treatment equipment to maintain efficient process control.
Surface Treatment Industry
Surface treatment processes require stable chemical temperatures for cleaning, coating, and metal finishing operations. PTFE heaters provide reliable and uniform heating performance in corrosive treatment baths.
Fluoropolymer (PTFE) Sheath:
A heavy-wall PTFE/PFA coating that encases the internal metal element, providing, chemical inertness, corrosion resistance, and non-stick properties.
Heating Element (Core):
Typically made of stainless steel or Incoloy, formed into a spiral shape to provide concentrated, even heat distribution at the bottom of a tank.
Terminal Enclosure:
A vapor-tight, flame-retardant polypropylene (PP) enclosure located at the top to protect the electrical connections from acidic fumes and moisture.
Thermal Protection:
Built-in safety features, such as replaceable or resettable thermal fuses, prevent overheating and protect the solution and heater.
Cold Zone (Vertical Riser):
The vertical portion of the L-shape is designed to be non-heated (cold), allowing the heater to accommodate fluctuating liquid levels without burning out the top section.
Grounding Element:
An internal metal ground wire or mesh to ensure electrical safety.
Flexible Conduit:
A corrosion-resistant PVC or thermoplastic flexible conduit typically 3 feet in length to protect the wire leads.
Parameter
|
Parameter |
Specification |
Customization Options |
|
Power Rating |
1000W |
500W to 9000W, adjustable in increments of 500W |
|
Voltage |
230V, 1 Phase |
120V-600V, single or three-phase configurations |
|
Material |
Fluoropolymer (PTFE) coated 304 stainless steel tubular element |
Optional 316 stainless steel core or titanium for enhanced corrosion resistance |
|
Shape |
L-Shaped (low profile, spiral type) |
Straight, U-shaped, or custom geometries to fit tank dimensions |
|
Watt Density |
10 W/in² |
Low density (up to 2.5W/cm²) for extended lifespan in corrosive liquids |
|
Operating Temperature |
Up to 212°F (100°C) |
High-temperature variants up to 450°F with specialized coatings |
|
Hot Zone Length |
7" (standard) |
Customizable from 6" to 14" based on tank depth |
|
Overall Length |
11" (standard) |
Extendable up to 24" for deeper installations |
|
Guard Material |
Polypropylene (standard) |
Fluoropolymer (PTFE) for chromic acid or high-temp solutions (>180°F) |
|
IP Rating |
IP67 |
Waterproof and chemical-resistant enclosures available |
|
Certifications |
CE, RoHS compliant |
UL listing optional for North American markets |
Packaging and Shipping
Each heating element is individually wrapped in protective foam and placed in a sturdy cardboard box with shock-absorbing padding, clearly labeled. For bulk orders, we use wooden pallets or export-grade wooden crates to ensure safe transport.

FAQ
As one of the leading l-shaped spiral ptfe heater manufacturers and suppliers in China, we also support custom service. Please feel free to wholesale high quality l-shaped spiral ptfe heater from our factory. Welcome to view our website for more information.

