Vibration Isolators
Adaptive Metal Damping, Friction Damping and Silicone Mounts for 0.05 kg to 25 kg Payloads
Three isolator families for platform shock and random vibration: GMZ adaptive metal dampers, GMX friction dampers, and GXT silicone mounts. Each metal isolator is rated for a specific load range, natural frequency and maximum displacement, so selection starts with the load carried by one isolator, not with the enclosure size.
Vibration Isolators
Adaptive Metal Damping, Friction Damping and Silicone Mounts for 0.05 kg to 25 kg Payloads
Three isolator families for platform shock and random vibration: GMZ adaptive metal dampers, GMX friction dampers, and GXT silicone mounts. Each metal isolator is rated for a specific load range, natural frequency and maximum displacement, so selection starts with the load carried by one isolator, not with the enclosure size.
Isolator Part Numbers
27 catalogue part numbers in three families. Every figure below is taken from the 2025 product manual. Filter by nominal load, then confirm the drawing before release to production.
GMZ adaptive dampers11 part numbers, metal housing with axial and lateral springs.
| Model | Nominal load (kg) | Load range (kg) | Static deflection (mm) | Natural frequency (Hz) | Max displacement (mm) | Transmissibility ≤ | Unit mass (kg) ≤ | Temp. (°C) | Drawing |
|---|---|---|---|---|---|---|---|---|---|
| GMZ-1-1 | 1 | 0.5–1 | 0.8 | 18 | 4 | 3 | 0.1 | -55 °C to +85 °C | Drawing |
| GMZ-1-1.5 | 1.5 | 1–2 | 0.8 | 18 | 4 | 3 | 0.1 | -55 °C to +85 °C | Drawing |
| GMZ-1-3 | 3 | 2–4 | 0.8 | 18 | 3 | 2 | 0.12 | -55 °C to +85 °C | Drawing |
| GMZ-1-5 | 5 | 4–6 | 1 | 15 | 3 | 2 | 0.12 | -55 °C to +85 °C | Drawing |
| GMZ-1-8 | 8 | 6–9 | 1 | 15 | 3 | 2 | 0.25 | -55 °C to +85 °C | Drawing |
| GMZ-1-12 | 12 | 9–13 | 1 | 15 | 2 | 2 | 0.25 | -55 °C to +85 °C | Drawing |
| GMZ-1-16 | 16 | 13–17 | 1.5 | 12 | 2 | 2 | 0.3 | -55 °C to +85 °C | Drawing |
| GMZ-1-20 | 20 | 17–25 | 1.5 | 12 | 2 | 2 | 0.45 | -55 °C to +85 °C | Drawing |
| GMZ-2-1 | 1 | 0.5–1 | 0.2 | 35 | 1 | 2 | 0.15 | -55 °C to +85 °C | Drawing |
| GMZ-2-1.5 | 1.5 | 1–2 | 0.2 | 35 | 1 | 2 | 0.15 | -55 °C to +85 °C | Drawing |
| GMZ-2-3 | 3 | 2–3 | 0.2 | 35 | 1 | 2 | 0.15 | -55 °C to +85 °C | Drawing |
GMX friction dampers7 part numbers, friction damping for light payloads.
| Model | Nominal load (kg) | Load range (kg) | Static deflection (mm) | Natural frequency (Hz) | Max displacement (mm) | Transmissibility ≤ | Unit mass (kg) ≤ | Temp. (°C) | Drawing |
|---|---|---|---|---|---|---|---|---|---|
| GMX-0.1 | 0.1 | 0–0.12 | 0.5 | 22 | 1 | 3 | 0.05 | -55 °C to +85 °C | Drawing |
| GMX-0.2 | 0.2 | 0.1–0.25 | 0.5 | 22 | 1 | 3 | 0.05 | -55 °C to +85 °C | Drawing |
| GMX-0.5 | 0.5 | 0.25–0.6 | 0.5 | 22 | 2 | 2 | 0.1 | -55 °C to +85 °C | Drawing |
| GMX-1 | 1 | 0.6–1.2 | 1 | 15 | 2 | 2 | 0.1 | -55 °C to +85 °C | Drawing |
| GMX-1.5 | 1.5 | 1.2–2 | 1 | 15 | 2.5 | 2 | 0.2 | -55 °C to +85 °C | Drawing |
| GMX-3 | 3 | 2–3.5 | 1 | 15 | 2.5 | 2 | 0.2 | -55 °C to +85 °C | Drawing |
| GMX-5 | 5 | 3.5–5.5 | 1.5 | 12 | 2.5 | 2 | 0.25 | -55 °C to +85 °C | Drawing |
GXT silicone mounts9 part numbers, moulded high-damping silicone.
| Model | Load range (kg) | A (mm) | B (mm) | C (mm) | D (mm) | E (mm) | Mounting screw | Resonance frequency (Hz) | Transmissibility | Drawing |
|---|---|---|---|---|---|---|---|---|---|---|
| GXT-01 | 0.05–0.1 | 7.4 | 2.6 | 10 | 2 | 5.3 | M2.5 | ≤50 | ≤4 | On request |
| GXT-02 | 0.1–0.2 | 9 | 3.2 | 10 | 2 | 6.4 | M3 | ≤50 | ≤4 | On request |
| GXT-03 | 0.2–0.5 | 10 | 3.5 | 12 | 3 | 7 | M3 | ≤50 | ≤4 | On request |
| GXT-04 | 0.5–1 | 12 | 4.2 | 13.5 | 3 | 8.5 | M4 | ≤50 | ≤4 | On request |
| GXT-05 | 0.2–0.5 | 13 | 4.5 | 17 | 3 | 9 | M4 | ≤50 | ≤4 | On request |
| GXT-06 | 0.5–1 | 15 | 4.5 | 20 | 5 | 10 | M4 | ≤50 | ≤4 | On request |
| GXT-07 | 1–1.5 | 18 | 5.5 | 20 | 5 | 13 | M5 | ≤50 | ≤4 | On request |
| GXT-08 | 1.5–2 | 22 | 6.5 | 23 | 5 | 15 | M6 | ≤50 | ≤4 | On request |
| GXT-09 | 2–2.5 | 24 | 8.5 | 28 | 7 | 17 | M8 | ≤50 | ≤4 | On request |
Selection Guide
- Load per isolator0.05 kg to 25 kg (0.1 lb to 55 lb), by part number. Divide the mounted mass by the number of isolators, then check the centre-of-gravity offset and keep a margin for the shock case.
- Natural frequencyGMZ 12-35 Hz, GMX 12-22 Hz, GXT at or below 50 Hz; keep it well below the lowest disturbing frequency.
- SeriesGMZ adaptive metal damper, GMX friction damper, GXT silicone mount. Transmissibility 2-3 on the metal types and at or below 4 on the silicone mounts.
Specification
| Load range | 0.05 kg to 25 kg (0.1 lb to 55 lb) per isolator, by part number |
|---|---|
| Natural frequency | GMZ 12-35 Hz, GMX 12-22 Hz, GXT at or below 50 Hz |
| Transmissibility | GMZ 2-3, GMX 2-3, GXT at or below 4 |
| Operating temperature | GMZ and GMX: -55 °C to +85 °C (-67 °F to +185 °F) |
| GMZ construction | Metal housing, conical axial spring, lateral springs and friction damping material: high damping in the resonant band, low damping in the isolation band |
| GMX construction | Friction damping for modules and small assemblies inside the enclosure |
| GXT construction | Mixed high-damping silicone rubber |
| Durability | GMZ: corrosion, radiation, high and low temperature, fatigue, damp heat, organic solvent and mould resistance. GXT: weathering and ozone resistance, with a shelf life beyond 10 years |
Typical Applications
Electronics mounted in airborne, shipboard and vehicle-mounted equipment where platform vibration or shock would otherwise reach the chassis directly. Selection is per mounting point, not per enclosure.
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