Audited Supplier
The Ferrite Ring Magnet could be used in a wide rang of applications because of their high coercively and low cost.They are widely used in reed switches,loud speakers,security system audio, motors, magnetic couplings, for sensing, loudspeakers, holding-magnet systems, crafts, magnetic therapy, novelties.
The following are the regular big size of the ferrite ring magnet:
D220xd110x25mm
D220xd110x24mm
D200xd108x24mm
D200xd86x20mm
D169xd86x20mm
D134xd59x20mm
Usually they are supplied without magnetism.
We also could produce the ferrite ring magnets according to your size, grade....
| Grade | Wb/m2 | Br | KA/m | BHc | KJ/m2 | (BH) max |
| Gs | Oe | MGOe | ||||
| Y25 | 3500-3900 | 0.35-0.39 | 152-208 | 1900-2600 | 22.3-25.5 | 2.8-3.2 |
| Y30 | 3800-4200 | 0.38-0.42 | 160-216 | 2000-2700 | 26.3-29.5 | 3.3-3.7 |
| Y35 | 4000-4400 | 0.40-0.44 | 176-224 | 2200-2800 | 30.3-33.4 | 3.8-4.2 |
| Y15H | ≥3100 | ≥0.31 | 232-248 | 2900-3100 | ≥17.5 | ≥2.2 |
| Y20H | ≥3400 | ≥0.34 | 248-264 | 3100-3300 | ≥21.5 | ≥2.7 |
| Y25BH | 3600-3900 | 0.36-0.39 | 176-216 | 2200-2700 | 23.9-27.1 | 3.0-3.4 |
| Y30BH | 3800-4000 | 0.38-0.40 | 224-240 | 2800-3000 | 27.1-30.3 | 3.4-3.8 |
Trading service
1.Delivery time: 20 days after confirm order;
2.Port : Ningbo / Shanghai
3.Payment terms:T/T, Paypal , West Union
4. Packaging & Shipping
Established in 1998 with 320 staff members and a registered capital of $1.5 million, Ningbo Hui Hesing Advanced-tech Material Co. Ltd is specialized in manufacturing and selling all kinds of permanent magnetic products. Our products are exported to North and South America, Western Europe, Australia, and Africa, and we have an annual sales volume exceeding $9.6 million. Our target customers are import traders and wholesalers. Some big names have been cooperating with us for over eight years. Our two major advantages over our competitors are that we own raw material factories, and we are located very close to the port for ease of transportation and trading. As such, our prices are competitively priced compared to those of other suppliers. We're also an ISO 9001:2000-certified manufacturer and able to produce up to 1,000 tons of DfES magnets, 8,000 tons of ferrite magnets and over 10 million magnetic assemblies annually.
