Norgren PM/31042 Air Bellow - 5750 N, 4-1/2in diameter
Part Number: PM/31042
Quick Summary
Norgren PM/31042 Air Bellow provides frictionless, single-acting actuation for short-stroke, high-force needs in automation and manufacturing lines. Engineers often fight downtime from lubrication, contamination, and space constraints in compact machinery. This design offers maintenance-free operation and a minimal footprint, delivering reliable performance with a fast response. The unit’s aluminum body and non-magnetic construction support rugged environments, while compatibility with standard compressed air systems simplifies installation. In regulated settings, you can align the PM/31042 with typical CE readiness and IP-based installation expectations, helping ensure safety and compliance. Overall, it reduces lifecycle costs and supports higher line throughput through robust, maintenance-free pneumatic actuation.
Product Information
Extended Description
PM/31042 Norgren: Frictionless operation | No maintenance or lubrication | Ideal for short stroke, high-force applications | High vibration isolation level | Easy, compact installation
Medium
Compressed air
Operating Temperature
-30 ... 50 °C, -22 ... 122 °F
Operating Pressure
0 ... 8 bar, 0 ... 116 psi
Port Size
G3/8
Nominal Diameter
4-1/2"
Number Of Convolutions
2
Stroke Length
85 mm
Operation
Single acting
Magnetic/Non-magnetic
Non-magnetic
Theoretical Force
5750 N
Materials - Body
Aluminium
Dimensions - Height
125 mm
Dimensions - Length
65 mm
Dimensions - Width
125 mm
Weight
0.95 kg
Country of Origin
Germany
Range
PM/31000
Brand
IMI Norgren
Frictionless operation reduces wear and maintenance, delivering predictable performance in high-cycle applications. This translates to lower downtime and extended service intervals for automated assembly lines, particularly where lubrication is hard to manage. In practice, you gain consistent cycle times and reduced operator intervention, helping you meet production targets more reliably. Engineered for no lubrication, the bellows eliminates oil contamination risk and simplifies audit trails for food, pharma, or electronics environments. The result is lower total cost of ownership and improved cleanliness in your pneumatic system. This feature supports lean maintenance practices and higher equipment uptime. Compact yet powerful, the 4-1/2" diameter with an 85 mm stroke delivers up to 5750 N of force in a short travel. That pairing enables robust clamping, position holding, or stamping actions without adding length to the actuator zone. It's particularly advantageous in pick-and-place fixtures where space is at a premium. High vibration isolation reduces transmitted stresses to adjacent equipment, extending life of tooling and guides. This makes it suitable for bumping or misaligned loads common in packaging and metal forming lines. Easy, compact installation is supported by a standard G3/8 port and a compact aluminum body with a lightweight 0.95 kg mass, facilitating fast mounting in control panels and on machines. This simplifies retrofits and new builds alike, even in dense automation cells. Non-magnetic aluminum construction resists corrosion and minimizes magnetic interference in sensitive environments, supporting reliable operation around sensing and control systems. Operation is validated across a broad temperature and pressure range, improving uptime in varied production lines. Operating temperature from -30 to 50 °C and operating pressure from 0 to 8 bar make PM/31042 compatible with common industrial air systems, while the 4-1/2" nominal diameter, 85 mm stroke, and 5750 N theoretical force enable ready substitution for legacy actuators within the PM/31000 range.
Get a Quick Quote for a Norgren PM/31042
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Norgren PM/31042?
Enquire Now
FAQs
PM/31042 uses a compact aluminum body with a G3/8 port and a footprint that fits narrow installations. With a 65 mm length and 125 mm width envelope, it can be mounted on standard brackets or adjacent fixtures. For best results, center the mounting points with the device’s 4-1/2 inch bore and ensure solid panel support to handle up to 8 bar supply pressure while avoiding misalignment that could impact stroke accuracy.
The PM/31042 operates from 0 to 8 bar (0 to 116 psi) and covers a temperature range from -30 to 50 °C (-22 to 122 °F). These ranges accommodate most industrial environments, including refrigerated and warm production lines, enabling consistent actuation without external cooling or heating.
Yes. The 4-1/2 inch diameter with an 85 mm stroke provides substantial force (5750 N theoretical) in a short travel, making it ideal for high-cycle clamping, fixture holding, and vibration isolation tasks. The frictionless, maintenance-free design helps sustain performance under frequent cycling and dynamic loads found in packaging and metal forming lines.
No. The PM/31042 is designed for frictionless operation with no lubrication required, reducing oil contamination risk and simplifying maintenance records. This is beneficial for traceability in food, pharma, and electronics manufacturing where clean environments and minimal servicing are priorities.
The body is aluminum and non-magnetic, reducing magnetic interference with nearby sensors and control components. While specific regional certifications vary, the design aligns with CE readiness concepts and IP-style installation compatibility, enabling safer integration into standard pneumatic loops and automation architectures.