Hot Runner Press In Brass Nozzle Coil Heaters With Inbuilt 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. Brass Heater Features
1>. High thermal conductivity: negative tolerance of heater
inner diameter,gapless,fit closely
2>. Fast heating:small power loss,high power heater,free
distribute power setting
3>. Small capacity:thin wall design,wall thickness 2.0-3.0mm
4>. Easy maintenance:time saving, cost effective: cut out
design, easy install and discharge by single circlip pliers
5>. Long lifetime: groove profile design, maximum heating area,
quickly heat conduct,lower heating load,no circuit inside,no
resistance wire interlace inside, no short circuit danger.
6>. Safe: Double head design, single resistance wire inside,
thick insulating layer, no current leakage
7>. Power saving: groove profile design, 66% effective touch
area, small power loss(spring heater effective touch area is around
25-33%)
8>. High efficiency: Fit closely, high power, short heating
time, short injection cycle time
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.
