접촉기,회로 차단기,태양광 인버터,전기 계량기,태양 전지
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)
예를 들어: 6mm / 8mm / 10mm / 12mm / 16mm / 20mm, 등.
- Total Length
Overall length including heating section + cold section (단위: mm)
- Effective Heating Length
Length of the actual heating zone; the cold end does not generate heat.
- 작동 전압
Common options: 220다섯 / 380다섯 / 110다섯 / 24다섯 / 36다섯
- 정격 출력
예를 들어: 300여 / 500여 / 800여 / 1KW / 2KW, 등.
If power is unknown, provide: heating medium, 목표온도, 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
- 외장재
Common options:
스테인레스 스틸 304 (standard molds, ≤450℃)
스테인레스 스틸 321 (medium-high temperature, ≤600℃)
Stainless Steel 310S (high-temperature molds, ≤800℃)
Incoloy (ultra-high temperature, 부식 방지)
- Common Custom Structural Parameters (선택 과목)
- With or Without Retaining Plate / Locating Plate
Provide diameter, thickness and position of the plate.
- With or Without Thread
예를 들어: M8 / M10 / M12 / M14 / M16 / M20
Provide thread length and position.
- Sealing Type
Ordinary adhesive sealing
High-temperature sealing
방수복 / moisture-proof sealing
- 응용 환경
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 (기준 / 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 재료, 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.
- 핵심 구조 & 작동 원리
| 요소 | 재료 & 기능 |
| Metal Sheath | SS304 (≤500℃), SS321 (≤600℃), SS310S (≤800℃), provides mechanical protection and heat conduction |
| 발열체 | NiCr alloy (2080) or FeCrAl alloy wire, generates Joule heat when energized |
| Insulation Filling | High-purity magnesium oxide powder (density ≥2.8g/cm³), 격리 + high-efficiency heat transfer, compacted by tube reduction |
| Lead Wire | High-temperature resistant wire (silicone / Teflon), single-end outlet for easy wiring and fixing |
작동 원리: 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.
- 주요 특징 & 장점
- 작은 사이즈, 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
- 쉬운 설치: Single-end wiring design, insertable into mold holes, adaptable to complex structures
- 높은 내구성: Fully sealed structure, shockproof and corrosion-resistant, service life up to 5,000–10,000 hours
- Flexible customization: Customizable diameter, 길이, 힘, shape (U-type / threaded / flanged)
III. Specification Table
| 매개변수 | Common Specifications | 메모 |
| 지름 (디) | 마이크로: 2–5mm | Commonly 6mm, 8mm, 10mm, 12mm |
| 기준: 6–25mm | ||
| Imperial: 1/4″-1″ | ||
| 길이 (엘) | 20–2000mm | Customizable, including heating and cold sections |
| 전압 | 12다섯 / 24다섯 / 36다섯 / 110다섯 / 220다섯 / 380다섯 | 220V for small/medium equipment, 380V for large equipment |
| 힘 | 50W–10kW | Calculated by surface load: W=π×D×L×w/cm² |
| Surface Load | 기준: 1–3W/cm² | 1–3W/cm² for plastic molds, 5–15W/cm² for metal molds |
| High-temperature: 3–6W/cm² | ||
| 특별한: 6–15W/cm² | ||
| 작동 온도 | SS304: ≤500℃ | Special materials available for over 1000℃ |
| SS321: ≤600℃ | ||
| SS310S: ≤800℃ |
- 응용
- Plastic Molds: Injection / 블로우 성형 / extrusion molds, 200–400℃, improves molding quality
- Die-Casting Molds: Zinc / 알류미늄 / magnesium alloy die-casting, requires rapid heating and high-temperature resistance
- Hot Runner Systems: Ensures uniform melt flow, increases production efficiency
- Other Industries: 의료 장비, laboratory instruments, 화학 반응기, sealing machinery, 등.
- 선택 & Power Calculation Guide
- Core Power Formula
- 피 = (M × cp × ΔT) / 티 + Qloss
중: Mold weight (kg)
cp: Specific heat of steel (≈470 J/kg·K)
ΔT: Temperature difference (℃)
티: Heating time (에스)
Qloss: Heat loss (≈10–30% of total power)
- Surface Load Reference
| Heating Medium | Recommended Surface Load | 메모 |
| 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
- 설치 & 유지
설치 단계
- 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℃
유지 & 대사
- 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. 일반적인 문제 & 솔루션
| 문제 | 원인 | 해결책 |
| 히터 단선 | Excess power density / poor heat dissipation | Reduce surface load / improve heat transfer / increase cooling |
| Uneven heating | 접촉불량 / improper hole design | Reinstall with thermal grease / optimize hole layout |
| Electric leakage | MgO damp / 절연 손상 | Replace heater / enhance sealing / 습기를 피하다 |
| Short service life | Frequent on/off / 큰 온도 변동 | Optimize temperature control / use high-temperature materials |
단일 엔드 카트리지 히터는 높은 전력 밀도로 인해 현대 산업 금형에 선호되는 가열 솔루션입니다., 빠른 응답과 유연한 설치.
선택은 금형 재료를 고려해야 합니다., 목표온도, 가열 시간, 정확한 전력 및 표면 하중 계산. 적절한 설치 및 온도 제어로 생산성과 제품 품질이 크게 향상됩니다..
Need me to calculate total required power, recommend diameter / 길이 / quantity and surface load based on your mold material, 무게, target temperature and heating time? Just provide these parameters.
