Minus K’s Compact Tabletop (CT-2) offers superior performance in a 2.7-inch isolation platform. This upgrade from Minus K’s CT-1 provides improved horizontal performance and increased payload ranges for larger sensors.
This passive mechanical isolator performs 10 to 100 times better than a full-size air table. It operates without air or electricity.
This incredibly user-friendly vibration isolation platform offers the unique 0.5 Hz vertical natural frequency and ~1.5 Hz horizontal natural frequency. Two modifications are required. The CT-2 is perfect for all types of benchtop microscopes.
This is the thinnest, most portable, and user-friendly isolator with high performance capabilities.
The isolator represents the thinnest, most portable, and most user-friendly solution ever offered that can achieve this level of vibration isolation performance.
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Typical Performance Curves

The vertical curve above demonstrates the vertical 1/2 Hz performance of the CT-2. Horizontally, the CT-2 offers natural frequencies as low as 1.5 Hz, much better than typical air tables. Image Credit: Minus K Technology, Inc.
Source: Minus K Technology, Inc.
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Weight: Approximately 30 lbs (16 kg), *43 lbs (19.6 kg), **48 lbs (21.9 kg) |
Dimension: 18” W x 20” D x 2.7” H (457 mm W x 508 mm D x 68.6 mm H) |
Approximate payload weight range |
Model |
Payload Range |
30CT-2 |
18-31 lb (8.2-14 kg) |
60CT-2 |
42-70 lb (19-31.7 kg) |
100CT-2* |
68-104 lb (31-47 kg) |
150CT-2* |
112-158 lb (51-71.5 kg) |
200CT-2* |
155-210 lb (70.5-95.2 kg) |
250CT-2** |
205-252 lb (93-114.3 kg) |
Performance |
- Horizontal frequencies are weight-dependent.
- Horizontal frequency of ~1.5 Hz is achieved at or near the upper limits of the payload range.
- At the lower payload weights, the horizontal frequency will increase.
- Vertical frequency is tunable to 0.5 Hz throughout the payload range.
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