Our heating elements are widely used for new energy vehicle heating, lithium battery packaging machinery, smokeless barbecue grills, plastic molding dies, hot-pressing equipment, cigarette-making machinery, pharmaceutical machinery, shoemaking equipment, 3D curved glass forming machines, 3D printers, packaging machines and extruders. All products are manufactured in compliance with CE standards.
Technical Specifications
- Tube outer diameter: φ2.8mm, φ3mm, φ4mm, φ5mm, φ6mm, φ8mm, φ9.5mm, φ10mm, φ12mm, φ16mm; custom sizes ranging from φ2.0mm to φ35mm available.
- Diameter tolerance: -0.02mm ~ +0.08mm
- Sheath material: SS304, SS321, SS316L, Incoloy 840
- Insulation filler: high-grade imported magnesium oxide powder
- Heating wire: Ni80Cr20 nickel-chromium alloy
- Max watt density: 40W/cm²
- Max sheath surface working temperature: 927℃
- Electrical property: leakage current ＜0.5mA
- Input voltage & power: custom-made as required; power tolerance: +5% ~ -5%
- Lead type: direct lead-out or indirect lead-out
- Thermocouple equipped models: imported K-type / J-type temperature sensing wires available
Product Advantages
- Extra-long service life: advanced internal structure design with imported high-purity solid MgO rods & filling powder featuring excellent thermal conductivity.
- Precision outer dimension via professional grinding process for tight fit during equipment assembly; high thermal efficiency and fast heat dissipation.
Structural Diagram of LILIN Cartridge Heater
Material Breakdown for LILIN Cartridge Heater
- End cap: SUS304
- MgO spacer: 99% high-purity or seawater refined magnesium oxide spacer
- MgO powder: USA-sourced high-temperature electrical-grade magnesium oxide powder
- Outer sheath: seamless stainless steel pipe above SUS321 grade, wall thickness ≥0.9mm
- Solid MgO core rod: 99% high-purity or seawater refined magnesium oxide rod
- Resistance wire: original imported Japanese Cr20Ni80 heating wire
- Lead pin: single-strand or multi-strand twisted NiMn2 pins
- MgO spacer: 99% high-purity or seawater refined magnesium oxide spacer
- Sealing compound: mica, ceramic bead or imported high-temperature ceramic adhesive
- Lead wire: direct lead type, Canadian imported multi-strand pure nickel wire resistant to 500℃, standard lead length:300mm
Quality Control Standards for Cartridge Heaters
- Diameter tolerance D: 0 ~ -0.05mm
- Length tolerance L: +1mm ~ -1mm
- Power tolerance W: +5% ~ -10%
- Straightness: ≤3‰ (Max deflection ≤3mm per 1000mm length on flat surface)
- Insulation resistance ≥10³MΩ (valid for 3 months under unopened vacuum packaging)
- Withstand voltage ≥1800V/S
- Surface requirement: smooth finish without scratches, spots or dents
- Lead wiring strictly follows standard current-carrying capacity per electrical specifications
- Packing: vacuum sealed packaging
