コンタクタ,サーキットブレーカー,ソーラーインバーター,電気メーター,太陽電池
When ordering customized single-end cartridge heaters for molds, please provide all the following parameters in one go, so we can offer an accurate quotation.
- Mandatory Core Parameters
- Tube Diameter (Outer Diameter)
例えば: 6mm / 8mm / 10mm / 12mm / 16mm / 20mm, 等.
- Total Length
Overall length including heating section + cold section (Unit: mm)
- Effective Heating Length
Length of the actual heating zone; the cold end does not generate heat.
- Operating Voltage
Common options: 220V / 380V / 110V / 24V / 36V
- Rated Power
例えば: 300W / 500W / 800W / 1KW / 2KW, 等.
If power is unknown, provide: heating medium, 目標温度, and heating-up time for factory calculation.
- Lead Wire Type / Lead Wire Length
Direct lead wire: silicone wire / Teflon wire, specify length
With terminal posts / junction box
Single-end wire outlet direction
- Sheath Material
Common options:
Stainless Steel 304 (standard molds, ≤450℃)
Stainless Steel 321 (medium-high temperature, ≤600℃)
Stainless Steel 310S (high-temperature molds, ≤800℃)
Incoloy (ultra-high temperature, 耐食性)
- Common Custom Structural Parameters (オプション)
- With or Without Retaining Plate / Locating Plate
Provide diameter, thickness and position of the plate.
- With or Without Thread
例えば: M8 / M10 / M12 / M14 / M16 / M20
Provide thread length and position.
- Sealing Type
Ordinary adhesive sealing
High-temperature sealing
Waterproof / moisture-proof sealing
- アプリケーション環境
Mold heating (plastic mold / die-casting mold)
Dry heating
Liquid heating
Temperature requirement: maximum operating temperature
- Tolerance Requirements
Diameter tolerance, length tolerance, and fitting requirements.
Ⅲ. Optional Parameters for Extended Service Life
Internal heating wire material (NiCr 2080 / FeCrAl)
Magnesium oxide grade (標準 / high-temperature high-density)
With or without tube reduction and annealing treatment
With or without thermocouple hole (can be built-in K-type thermocouple)
For mold applications, the simplest standard specification format is as follows:
> Single-end cartridge heater, diameter Φ10mm, total length 200mm, heating length 150mm, 220V 600W, 304 材料, 150mm silicone lead wire, with retaining plate.
Need me to generate a ready-to-send standard parameter text based on your mold dimensions?
Single-End Cartridge Heater (Single-End Heater / Cartridge Heater)
A single-end mold cartridge heater is a tubular electric heating element with wiring only at one end, mainly used for efficient heating in confined spaces or complex molds. It is widely applied in injection molding, die-casting, plastic molding and other industrial fields.
- コア構造 & 動作原理
| 成分 | 材料 & 関数 |
| Metal Sheath | SS304 (≤500℃), SS321 (≤600℃), SS310S (≤800℃), provides mechanical protection and heat conduction |
| Heating Element | NiCr alloy (2080) or FeCrAl alloy wire, generates Joule heat when energized |
| Insulation Filling | High-purity magnesium oxide powder (density ≥2.8g/cm³), 絶縁 + high-efficiency heat transfer, compacted by tube reduction |
| Lead Wire | High-temperature resistant wire (silicone / Teflon), single-end outlet for easy wiring and fixing |
動作原理: Electric current passes through the resistance wire to generate heat, which is transferred through magnesium oxide powder to the metal sheath and then to the mold, achieving precise temperature control.
- 主な特長 & 利点
- 小型, high power density: Power per unit area up to 2.5–50W/cm², ideal for rapid heating
- High thermal efficiency (≥90%): Concentrated heating, fast thermal response, steep temperature rise curve
- Easy installation: Single-end wiring design, insertable into mold holes, adaptable to complex structures
- High durability: Fully sealed structure, shockproof and corrosion-resistant, service life up to 5,000–10,000 hours
- Flexible customization: Customizable diameter, length, 力, shape (U-type / ねじ切りされた / フランジ付き)
Ⅲ. Specification Table
| パラメータ | Common Specifications | 注意事項 |
| 直径 (D) | Micro: 2–5mm | Commonly 6mm, 8mm, 10mm, 12mm |
| 標準: 6–25mm | ||
| Imperial: 1/4″–1″ | ||
| 長さ (L) | 20–2000mm | Customizable, including heating and cold sections |
| 電圧 | 12V / 24V / 36V / 110V / 220V / 380V | 220V for small/medium equipment, 380V for large equipment |
| 力 | 50W–10kW | Calculated by surface load: W=π×D×L×w/cm² |
| Surface Load | 標準: 1–3W/cm² | 1–3W/cm² for plastic molds, 5–15W/cm² for metal molds |
| High-temperature: 3–6W/cm² | ||
| Special: 6–15W/cm² | ||
| Operating Temp | SS304: ≤500℃ | Special materials available for over 1000℃ |
| SS321: ≤600℃ | ||
| SS310S: ≤800℃ |
- アプリケーション
- Plastic Molds: Injection / blow molding / extrusion molds, 200–400℃, improves molding quality
- Die-Casting Molds: Zinc / aluminum / magnesium alloy die-casting, requires rapid heating and high-temperature resistance
- Hot Runner Systems: Ensures uniform melt flow, increases production efficiency
- Other Industries: 医療機器, 実験器具, chemical reactors, sealing machinery, 等.
- 選択 & Power Calculation Guide
- Core Power Formula
- P = (M × cp × ΔT) / t + Qloss
M: Mold weight (kg)
cp: Specific heat of steel (≈470 J/kg·K)
ΔT: Temperature difference (℃)
t: Heating time (s)
Qloss: Heat loss (≈10–30% of total power)
- Surface Load Reference
| Heating Medium | Recommended Surface Load | 注意事項 |
| Dry heating in air | 0.5–1.5W/cm³ | Ensure sufficient heat dissipation |
| Liquid heating | 2–4W/cm³ | Flow rate affects heat dissipation |
| Metal molds | 5–15W/cm² | Higher when contact is excellent |
| Plastic molds | 1–3W/cm² | Avoid local overheating and deformation |
- Dimension Matching Rules
Fit between heater and mold hole: H7/g6 or H7/f7 for tight contact
Effective heating length must cover the heating zone; cold end extends outside for wiring
Reserve 0.1–0.2mm for thermal expansion to prevent jamming
- インストール & メンテナンス
インストール手順
- Ensure verticality and smoothness of mold holes to avoid scratching the heater surface
- Clean holes and apply thermal grease / thermal adhesive to improve efficiency by 30–50%
- Insert gently, avoid heavy knocking
- Insulate wiring terminals properly, keep away from high-temperature areas
- Use with temperature controller, recommended fluctuation ±1℃
メンテナンス & 交換
- Operate only after cooling to room temperature to prevent burns
- Regularly clean carbon deposits / scale with fine sandpaper
- Inspect lead wire insulation, replace if damaged
- Replace heater if uneven heating or power drop occurs
Ⅶ. Common Issues & ソリューション
| 問題 | 原因 | 解決 |
| Heater burnout | Excess power density / 放熱が悪い | Reduce surface load / improve heat transfer / increase cooling |
| Uneven heating | 接触不良 / improper hole design | Reinstall with thermal grease / optimize hole layout |
| Electric leakage | MgO damp / insulation damage | Replace heater / enhance sealing / avoid moisture |
| Short service life | Frequent on/off / large temperature fluctuation | Optimize temperature control / use high-temperature materials |
シングルエンド カートリッジ ヒーターは、出力密度が高いため、最新の工業用金型に推奨される加熱ソリューションです。, 素早い対応と柔軟な設置.
金型材質を考慮して選択する必要があります, 目標温度, 加熱時間, 正確な電力と表面荷重の計算. 適切な設置と温度管理により、生産性と製品品質が大幅に向上します。.
Need me to calculate total required power, recommend diameter / length / quantity and surface load based on your mold material, 重さ, target temperature and heating time? Just provide these parameters.
