
Dielectric stack and aluminum body
Review alloy and thickness, surface preparation, dielectric material and layer count, printed coverage, edge clearance, holes, flatness, heat spreading, and insulation margin.

Metal-Base Heater Engineering
An aluminum substrate thick film heater combines a metal heat-spreading body with a project-defined dielectric stack, printed heater layout, conductor and terminal interfaces, and electrical-safety controls. The supplied photographs show several large circular layouts with visible blue fields, dark printed paths, silver-colored regions, holes, pads, and edge features. Send the drawing, voltage, power, resistance, heat-load boundary, mounting method, terminals, quantity, and test plan for engineering review.
Twelve category-level selection values cover substrate routes, printed systems, electrical targets, temperature ranges, and test baselines. Each value is typical; the released product value is confirmed against the customer drawing and operating conditions. For this aluminum route, the selected metal grade, dielectric build, printed layout, terminals, mounting, heat sink, and safety limits remain drawing-controlled.
Final values confirmed against customer drawing.
| Substrate Material | Stainless steel / Aluminum / Alumina / AlN / PI |
|---|---|
| Dielectric Layers | 3–4 layers typical, metal substrates |
| Heater Resistor | RuO₂ / Metal-based / PTC |
| Conductor System | Ag / Ag-Pd / Metal terminal |
| Rated Voltage | 3–240 V AC/DC typical |
| Rated Power | 1–2,000 W typical |
| Target Resistance | 0.1 Ω–10 kΩ typical |
|---|---|
| Resistance Tolerance | ±5% typical |
| Power Density | 1–60 W/cm² typical |
| Operating Temperature | Polymer ≤150°C / Ceramic-metal ≤600°C typical |
| Process Temperature | ≈850°C ceramic / ≈590°C metal / 120–200°C polymer* |
| Electrical Test | IR ≥100 MΩ / Hi-pot ≥1.5 kVAC typical |
Four controls connect the aluminum body, dielectric stack, printed heater, terminal interface, mounting condition, and validation plan. The visible product set supports geometry and layout review; all material, electrical, thermal, and safety limits are released for the specific project.

Review alloy and thickness, surface preparation, dielectric material and layer count, printed coverage, edge clearance, holes, flatness, heat spreading, and insulation margin.

Connect target resistance, voltage, power, power density, heated area, path width, local loading, sensor position, heat sink, fluid or air boundary, and thermal-uniformity checks.

Define pad and terminal materials, joining route, lead direction, strain relief, connector space, center and edge features, mating CAD, clamping force, and assembly sequence.

Release resistance, continuity, insulation resistance, hi-pot, leakage, grounding, power, thermal mapping, cycling, functional checks, sampling, calibration, traceability, and records.
These application illustrations show conditional directions for metal-base heaters. Suitability depends on the released dimensions, heat load, insulation, power density, mounting, controls, environment, safety standard, and validation route.
Application illustrationA circular or shaped aluminum heater may be reviewed for water-heating hardware after the vessel interface, wetted boundary, heat transfer, dry-fire protection, grounding, sensors, and appliance tests are defined.
Review water-heating inputs
Application illustrationA metal-base heater can be considered for controlled battery warming when voltage, isolation, temperature uniformity, sensor layout, clamping, thermal interfaces, vibration, protection logic, and vehicle validation are released.
Review thermal-control inputs
Application illustrationFlat or profiled aluminum-supported heaters may suit compact sealing stations when heated geometry, pressure, duty cycle, surface contact, controls, insulation, replaceability, and machine-level safety are specified.
Review sealing inputsFive supplied photographs visibly confirm large circular metal-supported heater forms with blue surface fields, dark printed paths, silver-colored areas, holes, pads, center features, and multiple layout variants. They do not establish aluminum grade, dielectric or paste chemistry, dimensions, resistance, voltage, power, temperature capability, insulation performance, lot history, inspection results, or shipment status.


Company resources support controlled thick film printing, thermal processing, laboratory inspection, and managed production in Dongguan. For aluminum heaters, the approved dielectric and resistor route, terminal assembly, resistance and insulation tests, thermal checks, sampling, traceability, and acceptance records are confirmed per released project.
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Short answers for quotation planning; released drawings and validation requirements remain controlling.
Send the dimensioned heater and mating-part drawings, aluminum requirement, heated area, target resistance, voltage, power, allowable current, temperature target, heat load, cooling boundary, duty cycle, mounting or bonding method, terminals, sensors, controls, environment, safety tests, quantities, and acceptance criteria. These inputs determine whether the dielectric, printed layout, edge clearances, and heat-spreading route are practical.
The metal body makes the dielectric stack and edge clearances critical. Engineering reviews layer count, coverage, holes, edges, terminals, assembly stress, grounding, working voltage, transients, moisture or contamination, insulation-resistance and hi-pot limits, dwell, leakage, sampling, and post-stress testing. The listed category values are typical baselines; the released drawing and applicable safety standard control the project.
They can be reviewed from customer CAD. Feasibility depends on alloy and thickness, blanking or machining route, flatness, hole and edge tolerances, printable area, dielectric coverage, resistor geometry, pad and terminal access, heat distribution, mounting stress, tooling, inspection, and expected volume. The five supplied views demonstrate several visible layouts, not an unlimited outline capability.
No. They verify visible circular forms and printed surface features only. Rated voltage, resistance, power, power density, temperature, uniformity, insulation, leakage, cycling, dry-fire behavior, lifetime, qualification, lot, and shipment claims require authorized drawings and project-specific test records.
Send the complete mechanical, electrical, thermal, assembly, safety, and order inputs so engineering can review the aluminum body, dielectric coverage, printed heater layout, pads or terminals, mounting stress, heat path, and validation route together. A photograph can start discussion, but quotation and production release must be drawing-controlled.
PDF, DWG, DXF, STEP, Gerber, ZIP, Excel, Word, or sample photos are accepted.
