Length 100MM Press In Brass Nozzle Coil Heaters with External Type
J thermocouple
1. Product introduction
Press in brass coil heater, the coil heater is designed to beset in
the brass sheating, can eliminate known problems associated with
the casting process. The machined path in the brass for the heater
enables exact repeatability of heat profile. By never exposing the
coil heater to molten brass there are no risks of shifted heater
coils, or destruction of the thermocouple junction.Flexible design
options include internal, external "wound in" or external slotted
type J or type K thermocouples.
2. Characteristics
1) Has quick heat dissipation, high insulation, greatly extend the
service life of heater
2) Can be built with a Micro, Mini, Flat, Low profile, or Round
Nexthermal Coil Heater.
3) Safety in use
4) Faster responding heater due to eliminated air pockets than cast
in brass
5) Profile and heater orientation precisely repeatable
6) Thermocouple not exposed to molten brass temperatures – Improved
durability
7) Potential for designing thin walled brass heaters to minimize OD
impact
8) Faster responding heater due to eliminated air pockets than cast
in brass
3. Parameter
| Spring coil heater (H series) | 3.0x3.0
3.3x3.3
4.0x2.0
4.2x2.2
4.5x2.7 | Φ3.0 | Φ4.0 | Φ5.0 | 3.5x3.5
4.0x4.0 | 5.0x5.0 |
| Voltage | 220V,230V,240V |
| Power tolerance 115W-200W | +/-10% |
| Power tolerance 201W-2000W | +5%-10% |
| Out jacket length | 30mm~280mm |
| Diameter of the inner sleeve/wrapped diameter | 10mm~42mm |
| Unheating length | 45mm |
| Max power density | 9W/cm² |
| Heating Length tolerance | +/-0.05mm |
| Unheating length tolerance | +/-2.5% |
| Tolerance ID d ≤20mm | Without inner sleeve:-0.15mm
With inner sleeve:0.05mm~0.10mm |
| Tolerance ID d 20mm~30mm | Without inner sleeve:-0.20mm
With inner sleeve:0.05mm~0.10mm |
| Tolerance ID d ≥30mm | Without inner sleeve:-0.25mm
With inner sleeve:0.05mm~0.10mm |
| Tolerance cross section | +/-0.15mm | +/-0.20mm |
| Thermocouple | K,J,E | None |
| Material | 304,321,316 |
| Maximum working temperature | 650℃ |
| Die electrical strength | 800V | 1000V |
4. Application
1). Injection moulding machine nozzle
2). Hot Runner Nozzles & Bushings
3). Packaging machineries
4). Hot runner Injection moulds.
5). Injection & Blow Moulding Machine Nozzles.
6). PET prefrom & Thin wall container Moulds
7). Hot runner Manifolds.
