Great Magtech (Xiamen) Electric Co., Ltd is one of the most reliable manufacturers and suppliers of ss304/316 extruder hopper magnets for plastic molding machine in China. We warmly welcome you to wholesale high quality ss304/316 extruder hopper magnets for plastic molding machine from our factory. Good service and reasonable price are available.
Among those famous extruder hopper magnets manufacturers, it is a professional supplier in China, welcome to wholesale grate magnets in housing, rare earth grate magnets, magnetic quick grids, magnetic hopper grate, extrusion hopper magnets from our factory.
Hopper Magnets for Injection Molding Machine
Round Grate Magnet specification:

| Diameter φ1 | Diameter φ2 | Height H | Distance A | Distance B | Bar Quantity |
| MM | MM | MM | MM | MM | PCs |
| Φ175 | Φ125 | 80 | 50 | 37 | 5 |
| Φ210 | Φ160 | 80 | 48 | 45 | 7 |
| Φ250 | Φ200 | 80 | 48 | 40 | 9 |
| Φ300 | Φ240 | 80 | 48 | 40 | 11 |
| Φ360 | Φ300 | 80 | 48 | 40 | 13 |
How to choose surface gauss:
If the metal you want to attract is Screw, thread or nut, 2500-2800GS. Normal Type
If the metal is iron powder, 10,000GS, Strong Type
For Normal Type 2500-2800GS, it is often by not welding type as below:

For Strong Type 10,000GS, it is often by welding type as below:
Video of hopper magnet:
Magnets for injection molding machine hoppers - temperature resistance of up to 120 °C
At present we are offering also magnets to be installed into injection molding hoppers, with a temperature resistance of up to 120 °C. They are also equipped with very strong NdFeB rare-earth magnets, but with remarkably higher temperature resistance.
Possibility of demagnetizing is the top benefit of the magnet. Demagnetizing can be carried out by loosening a locking screw and shifting magnetic cores out of stainless steel tubes. Due to this feature, cleaning job is very quick, comfortable and the trapped metal particles will fall off.
Features :
· Long lasting: Lifetime Guarantee of Permanent Magnet Strength
· High surface gauss: Less than 1% magnetic loss in 100 years
· Non-pollution: pharmaceutical, food grade and 3A dairy metal finishes available
· Low energy consumption: Low maintenance costs
· Finest of Magnetic Materials used meeting IMA/MMPA
Lead time:
Equipped with standard magnetic bar size, 7-10 days;
Customized made magnetic bars are acceptable, within 10-15 days.
Specification:
Length is adjustable as per customers’ request.
The round style hopper magnets are available in 16 standard diameters ranging from 4" to 36" with either Ceramic or Rare Earth magnetic construction. We can supply also magnets with different dimensions. Using the following table, you may order the hopper magnets for your machine directly.
There is not standard size for rectangle hopper Magnet, please confirm the size of hopper:
Rectangle Hopper Magnet Demanstration:
Customized Made Service:
Special sizes are also available. We’re able to produce as per your specific requirement of size and application range.
The related products you may interest:
Hopper magnets are also used in drawer magnet separators, with easy clean function.



























