Magnetic base
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Description
Overview
Magnetic hold-downs for acoustic emission (AE) sensors, designed to secure sensors to ferromagnetic test surfaces. Units consist of a permanent magnet and a protective shell. M series are standard-temperature hold-downs; H series are high-temperature variants — consult model table for specific ratings.
Features
Product images
Photographs and diagrams illustrate general product views and the different shapes/sizes of the M and H series models.
Model table
Model | Internal size (D × H) | Working temperature
M20 | 20 mm × 13 mm | -20°C to 80°C
M20A | 20 mm × 17 mm | -20°C to 80°C
M36 | 32 mm × 35 mm | -20°C to 80°C
M36A | 32 mm × 55 mm | -20°C to 80°C
M36B | 32 mm × 35 mm | -20°C to 80°C
M36C | 32 mm × 35 mm | -20°C to 80°C
H20 | 20 mm × 17 mm | -196°C to 550°C
H20A | 22 mm × 17 mm | -196°C to 350°C
Accessories
Technical specifications
Magnetic hold-downs for acoustic emission (AE) sensors, designed to secure sensors to ferromagnetic test surfaces. Units consist of a permanent magnet and a protective shell. M series are standard-temperature hold-downs; H series are high-temperature variants — consult model table for specific ratings.
Features
- Magnetic clamping for fast, repeatable mounting on ferromagnetic structures
- Simple, compact construction
- Range of models to fit common AE sensor diameters and configurations
Product images
Photographs and diagrams illustrate general product views and the different shapes/sizes of the M and H series models.
Model table
Model | Internal size (D × H) | Working temperature
M20 | 20 mm × 13 mm | -20°C to 80°C
M20A | 20 mm × 17 mm | -20°C to 80°C
M36 | 32 mm × 35 mm | -20°C to 80°C
M36A | 32 mm × 55 mm | -20°C to 80°C
M36B | 32 mm × 35 mm | -20°C to 80°C
M36C | 32 mm × 35 mm | -20°C to 80°C
H20 | 20 mm × 17 mm | -196°C to 550°C
H20A | 22 mm × 17 mm | -196°C to 350°C
Accessories
- AE couplant: high-temperature paste type (typical use range -35°C to 235°C, melting point ≥270°C)
- Calibration tools: pencil break and guide rings for manual source generation (e.g. Φ0.3 mm 2H or Φ0.5 mm HB tips)
- Sensor signal leads: shielded cables, commonly 1 m or 2 m lengths
- AE coaxial cables: BNC‑terminated, lengths from 1 m up to 100 m
- Protective transport cases: rugged, crush- and impact-resistant, some models with wheels and telescopic handle
Technical specifications
- Function: Magnetic hold-down for AE sensors on ferromagnetic materials
- Construction: Permanent magnet with protective shell
- Series: M series (standard temperature), H series (high-temperature)
- Example dimensions: M20 (20 × 13 mm), M20A (20 × 17 mm), M36 (32 × 35 mm), M36A (32 × 55 mm), M36B (32 × 35 mm), M36C (32 × 35 mm), H20 (20 × 17 mm), H20A (22 × 17 mm)
- Temperature ranges: M series typically -20°C to 80°C; H series examples H20 -196°C to 550°C, H20A -196°C to 350°C
- Typical use: Secure, repeatable mounting of AE sensors for condition monitoring and non-destructive testing on ferromagnetic surfaces
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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.