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Model Number : 12-hole DC test ring
Brand Name : TESTECH
Certification : CE, ISO
Place of Origin : CHINA
Product : Type B Magnetic Particle Testing Block
Center Hole : diameter 31.8mm
Surface distance : 1.78mm-21.34mm
Defect Hole : Φ1.78 mm
MOQ : 1 Piece
Price : Bulk discount
Packaging Details : In Carton
Delivery Time : 3-7 days
Payment Terms : T/T, Credit Card, Paypal, Western Union
Supply Ability : 5000pcs/month
The Type B Magnetic Particle Testing Block (also referred to as the 12‑hole DC Test Ring) is equivalent to the American BETZ Ring.
It is used to verify the overall performance (system sensitivity) of magnetic particles and magnetic suspensions in magnetic particle testing equipment, as well as to evaluate the suitability of testing conditions and operating procedures. It is applied when the magnetization specification, magnetic field direction, and effective magnetization range cannot be determined.
This Type B test block is designed for verifying the comprehensive performance of magnetic particles under DC or three‑phase full‑wave rectified magnetization current.
| Hole | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | 1.8inch | |||||||||||
| Distance between the hole and the outer edge(Inch) | 1.8 | 3.6 | 5.4 | 7.2 | 9 | 10.8 | 12.6 | 14.4 | 16.2 | 18 | 19.8 | 21.6 |
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MPI Ketos B-Type Ring | Magnetic Particle Testing Block | DC 12-Hole Test Ring BETZ Equivalent Images |