Product Short Description
The GE MWB90-2 is a high-precision, industrial-grade angle beam ultrasonic transducer manufactured by GE Inspection Technologies (formerly Krautkramer). Designed to European EN 12668-2 standards, it delivers accurate and repeatable shear wave inspections for flaw detection in welds, pipelines, and structural components. This compact probe integrates a piezoelectric crystal and a replaceable acrylic wedge, generating a 90° refracted shear wave in steel for detecting defects oriented perpendicular or angled to the test surface. It is widely used in non-destructive testing (NDT) across energy, manufacturing, and infrastructure sectors.
Description
Technical Specifications
- Manufacturer: GE Inspection Technologies (General Electric)
- Series: MWB Series (European Standard Small-Size Angle Beam Probes)
- Model: MWB90-2
- Frequency: 2 MHz
- Crystal Element Size: 8 mm × 14 mm
- Refracted Angle (Steel): 90° shear wave
- Beam Angle Accuracy: ±1°
- Bandwidth: 30–60% (high sensitivity for defect detection)
- Interface Type: Lemo 00 (side-mounted; optional top-mounted MWB90-O2)
- Wedge Material: High-grade acrylic (replaceable)
- Wedge Sound Velocity: 2730 m/s
- Near Field Length: 15 mm
- Max. Testing Thickness: 100 mm (steel)
- Operating Temperature: -20°C to +60°C
- Dimensions (W × H × L): 12 mm × 20 mm × 45 mm
- Weight: 0.08 kg (0.18 lbs)
- Certifications: EN 12668-2, CE
- Country of Origin: Germany
Key Features
- 90° Shear Wave Generation: Produces a 90° refracted shear wave in steel, ideal for detecting transverse defects, root cracks, and inclusions in welds and flat surfaces.
- Small-Size Compact Design: 8 mm × 14 mm crystal and miniaturized housing enable access to confined spaces, tight geometries, and small components.
- European Standard Compliance: Manufactured to EN 12668-2, ensuring compatibility with DGS (Distance-Gain-Size) flaw sizing for precise defect quantification.
- Replaceable Acrylic Wedge: Reduces maintenance costs and extends service life; worn wedges are easily swapped without replacing the entire probe.
- High Sensitivity & Resolution: Optimized 2 MHz frequency and 30–60% bandwidth deliver clear signals for detecting small, near-surface defects.
- Lemo 00 Connector: Secure, low-noise connection to GE ultrasonic flaw detectors (e.g., USM Go+, USM 36) for reliable data transmission.
- Robust Industrial Construction: Durable housing and shock-resistant crystal withstand harsh workshop and field conditions.
- Consistent Performance: Tight manufacturing tolerances ensure angle accuracy and repeatability across inspections.
Applications
- Weld Inspection: Detects cracks, incomplete fusion, root porosity, and inclusions in carbon steel and low-alloy steel welds.
- Pipeline & Tubing Testing: Inspects longitudinal and circumferential welds in oil, gas, and petrochemical pipelines.
- Pressure Vessel & Tank Inspection: Evaluates weld integrity in storage tanks, boilers, and heat exchangers.
- Power Generation: Inspects turbine blades, shafts, and structural welds in thermal and hydroelectric power plants.
- Manufacturing: Checks small components, thin plates, and complex geometries in automotive, aerospace, and heavy machinery production.
- Infrastructure: Assesses structural welds in bridges, buildings, and steel frameworks.
System Compatibility
- Compatible Detectors: GE USM Go+, USM 36, USM 58, Krautkramer USM 25, and other ultrasonic flaw detectors with Lemo 00 inputs.
- Cable Options: SEKM2, SEKL2, or equivalent Lemo 00-to-Lemo 00 cables.
- Standards: Compliant with ISO 17640, ASME V, and GB/T 11345 for ultrasonic weld testing.
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