Self-Leveling Compact Pneumatic Vibration Isolator

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Overview

Newport CM-225 isolators provide excellent pneumatic vibration isolation for platform loads up to 225 lbs. Featuring our unique Stabilizer™ hybrid chamber design, these isolators offer the largest compliance volume, and therefore the best vertical isolation of any compact isolators. Automatic releveling maintains platform stability.

Integrated fast response leveling valves
Self-centering piston eliminates horizontal isolation shorts
Low profile allows easy integration into small systems

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Products

Compare	Model	Compatibility	rankScore	Isolator Height	Load Capacity per Isolator	Self Centering	Number of Isolators	Releveling Accuracy	Availability	Price	Brand
CM-225 Pneumatic Isolator Set, Compact, Self-Leveling, Set of 4 $1,559 In Stock	CM-225 Pneumatic Isolator Set, Compact, Self-Leveling, Set of 4	UNIVERSAL	1.0	50.8 mm	27 kg	Yes	4	0.6 mm	In Stock	$1,559	Newport
CM-225-1S Pneumatic Isolator, Compact, Slaved Unit without Re-leveling Valve $609 Contact Us	CM-225-1S Pneumatic Isolator, Compact, Slaved Unit without Re-leveling Valve	UNIVERSAL	1.0	50.8 mm	27 kg	Yes	1	0.6 mm	Contact Us	$609	Newport
CM-225-1V Pneumatic Isolator, Compact, Re-leveling Valve $667 Contact Us	CM-225-1V Pneumatic Isolator, Compact, Re-leveling Valve	UNIVERSAL	1.0	50.8 mm	27 kg	Yes	1	0.6 mm	Contact Us	$667	Newport
CM-225-3 Pneumatic Isolator Set, Compact, Self-Leveling, Set of 3 $1,333 Contact Us	CM-225-3 Pneumatic Isolator Set, Compact, Self-Leveling, Set of 3	UNIVERSAL	1.0	50.8 mm	27 kg	Yes	3	0.6 mm	Contact Us	$1,333	Newport
UCM-225 Pneumatic Isolator Set, Ultra-clean, Class 10, Set of 4 $1,602 Contact Us	UCM-225 Pneumatic Isolator Set, Ultra-clean, Class 10, Set of 4	UNIVERSAL	1.0	50.8 mm	27 kg	Yes	4	0.6 mm	Contact Us	$1,602	Newport

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Specifications

Isolator Height

50.8 mm
Load Capacity per Isolator

60 lb (27 kg)
Self Centering

Yes
Releveling Accuracy

0.6 mm
Horizontal Isolation, Resonance

3.6 Hz

Horizontal Amplification at Resonance

10 dB
Horizontal Isolation, 10 Hz

80%
Vertical Isolation, Resonance

3.2 Hz
Vertical Amplification at Resonance

12 dB
Vertical Isolation, 10 Hz

84%

Specifications

Isolator Height

50.8 mm
Load Capacity per Isolator

60 lb (27 kg)
Self Centering

Yes
Releveling Accuracy

0.6 mm
Horizontal Isolation, Resonance

3.6 Hz

Horizontal Amplification at Resonance

10 dB
Horizontal Isolation, 10 Hz

80%
Vertical Isolation, Resonance

3.2 Hz
Vertical Amplification at Resonance

12 dB
Vertical Isolation, 10 Hz

84%

Features

Stabilizer™ Hybrid Chamber Design

Side view of CM-225 isolator

One of the most important design goals of pneumatic vibration isolators is to achieve lower natural frequency. It is related to the isolator's compliance volume - the larger the volume, the lower the frequency. Unlike the conventional design of a compliance chamber (the volume of which affects natural frequency) and a damping chamber, Newport's patented Stabilizer hybrid chamber design consists of a small size initial chamber and a second damping chamber together as a unified hybrid chamber. Because the initial chamber is reduced dramatically in size, it forces the isolator to use the second chamber as part of the compliance volume, which greatly increases the compliance volume for a given package size, and greatly lowers the natural frequency.