Core Value

Commercial steaming equipment operates under strict spatial constraints; the water reservoirs must be shallow to maximize the vertical space available for food trays or medical instruments. A standard linear or U-shaped heating element cannot provide the necessary steam recovery wattage (e.g., 2kW to 4kW) without physically exceeding the dimensions of the basin.

The 220V Spiral Coiled Water Heating Element for Steamer overcomes this volumetric limitation through advanced geometric forming. By wrapping the active heating tube into a tight, flat concentric coil, HT Heater compresses a massively expanded surface area into a diameter often less than 120mm.

This expanded surface area dictates the fluid dynamics of the system. It significantly lowers the watt density (surface load) of the element. In boiling applications, a reduced surface temperature mitigates the rapid crystallization of calcium and magnesium (mineral scale) onto the sheath, directly extending the operational lifespan of the heater and preventing internal wire fracture caused by thermal insulation.

To guarantee a hermetic seal against the bottom of the steamer basin, the upward-facing terminal legs are deeply silver-brazed or TIG-welded to a robust circular metal mounting flange. This enables secure bottom-up installation, isolating the live electrical pins in the dry chassis zone below the water tray.

• ✓ Maximized Power-to-Size Ratio: The flat concentric spiral packs high commercial wattage into an ultra-shallow fluid depth.
• ✓ Anti-Scaling Performance: Expanded surface area yields a lower watt density, resisting aggressive mineral calcification in hard-water zones.
• ✓ Leak-Proof Flange Integration: Heavy-duty circular mounting plate provides a rigid, pressure-tight seal through the bottom of the steamer vessel.
• ✓ Food-Grade Metallurgy: Constructed entirely from SUS304 or SUS316L stainless steel to comply with global commercial catering sanitation standards.
• ✓ Direct OEM Manufacturing: Fully customizable coil diameters, wattages, and flange hole-patterns engineered by HT HEATER.

Technical Specifications & Performance Data

Industrial Applications & Solutions

This space-saving spiral immersion heater is the specified thermal engine for shallow high-volume fluid equipment:

• Commercial Dim Sum & Rice Steamers: Generates continuous, high-volume rolling steam from ultra-shallow water trays to evenly cook multi-deck bamboo or steel baskets.

• Bain-Maries & Countertop Food Warmers: Provides precise, highly distributed heat across the bottom of holding pans without localized boiling.

• Medical & Dental Autoclaves: Powers compact tabletop sterilization equipment where chamber space is severely limited.

• Laboratory Water Baths: Delivers stable, low-profile conductive heat for precision biological and chemical incubation.

HT HEATER Advantage: Why Choose Our Offset Elements?

Installation & Handling Guidelines

• • Mandatory Complete Submergence: The entire spiral coil section must be completely submerged in water before power is applied. Dry-firing will cause the element to glow red-hot and destroy itself within minutes. Steamers must be equipped with automatic water-fill valves or low-water cutoff switches.

  • Flange Sealing Protocol: When mounting the heater upward through the bottom of the tank, a high-temperature, food-grade gasket (e.g., silicone or PTFE) must be utilized between the circular flange and the exterior tank floor to compress and form a leak-proof mechanical seal.

  • Stand-Off Clearance: Ensure the spiral coil does not rest directly on the metal floor of the water basin. A slight elevation allows water to circulate underneath the coil, preventing the entrapment of sediment which acts as a thermal insulator.

  • Aggressive Descaling Schedule: Because steamers boil away pure water, heavy mineral deposits are left behind. Establish a strict maintenance schedule to soak the element in commercial descaling acid (e.g., citric acid) to maintain thermal efficiency. Never aggressively scrape the stainless steel sheath with hard metal tools.

Customer Success Stories

Case 1:

Commercial Asian Kitchen Equipment OEM (Malaysia)

• Application: 10-tray commercial rice and seafood steaming cabinets.

• Challenge: The OEM required a 3000W heat source that could fit inside a water reservoir only 65mm deep. Standard straight elements lacked the surface area, resulting in slow steam recovery when frozen foods were introduced.

• Solution: Integrated the 220V Spiral Coiled Water Heating Element from HT HEATER. The flat concentric design easily accommodated the 3kW requirement within a highly compressed horizontal footprint.

• Results: STEAM RECOVERY TIME REDUCED BY 35%. The massive surface area generated aggressive steam instantly, enabling perfectly uniform cooking across all 10 trays and improving the OEM’s market competitiveness.

Case 2:

Medical Sterilizer Manufacturer (USA)

• Application: Tabletop steam autoclaves for surgical clinics.

• Challenge: Required a compact, bottom-mounted heater that would completely eliminate the risk of pressure leaks at the terminal junctions under 30 PSI of steam pressure.

• Solution: HT Heater supplied custom spiral coil elements featuring heavy-duty circular flanges equipped with deep 360-degree TIG welds.

• Results: 100% PRESSURE INTEGRITY. The deep-welded flange joints easily withstood the continuous pressure cycling of the autoclave chamber, providing a hermetic, fail-safe seal for the life of the medical device.

Pricing & Procurement Options

• OEM Customization: Tailored shapes, custom cutout holes for pipe nozzles, specialized voltage/wattage configurations, and custom strap lengths.
• Lead Times: Custom samples: 3–5 working days. Bulk production orders: 8–12 working days upon technical drawing sign-off.
• Packaging & Shipping: Individually bagged with protective foam padding and packed into heavy-duty 5-ply export cartons to prevent bending or lead wire stress during international transit.
• Minimum Order Quantity (MOQ): Low MOQ starting at 5–10 units for custom dimensions; competitive volume pricing tiers for equipment manufacturers.

Global Certifications & Compliance

• CE Marking
  Fully compliant with European safety and environmental standards.
• LVD Compliance
  Low Voltage Directive tested for continuous thermal load safety.
• RoHS Compliant
  Constructed using environmentally safe, lead-controlled brass alloys.
• ISO 9001
  Certified quality control covering CNC machining, coil pressing, and electrical testing.

Quality Documentation: Certificate of Conformity (COC) and insulation resistance test reports included.

Comprehensive After-Sales Support

• • Warranty: 1-Year Comprehensive Warranty covering internal heating element and built-in sensor.

  • Technical Support: Application engineers available for wattage distribution calculation, thermocouple calibration, and nozzle fitting assistance.

  • Global Response Network: BACKED BY 30+ YEARS MANUFACTURING EXPERIENCE with technical inquiry feedback within 2 hours.

Ready to Optimize Your Injection Molding?

Next Steps:

• 📧 Request Custom Quote – Send your nozzle dimensions, wattage, voltage, and HT-CLW-450 drawing requirements.
• 🔧 Free Design Consultation – Work with our thermal engineers to optimize heat distribution and lead insulation.
• 📦 Order Test Samples – Evaluate thermal performance on your injection molding machine.
• 📞 Contact Hot Runner Experts – Response within 2 hours

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