Norgren RM/91040/M/20 Pneumatic Cylinder - Magnetic Piston

Part Number: RM/91040/M/20
Manufacturer
Norgren
Part number
RM/91040/M/20

Quick Summary

Norgren RM/91040/M/20 is a compact single-acting pneumatic cylinder designed for precise linear actuation in automation and packaging applications. When space is tight and sensor integration is essential, you need a dependable actuator that reduces footprint without sacrificing performance. Note: certifications such as CE, SIL, or IP ratings are not listed in the provided data; please verify with the supplier to ensure regulatory compliance in your region. This magnetic piston model also benefits from corrosion-resistant materials and a robust, low-friction seal design, delivering reliable operation in demanding environments and supporting efficient, cost-effective automation.

Product Information

Extended Description

RM/91040/M/20 Norgren: One third the basic length of a corresponding ISO/VDMA model | Low friction, long life seal design | Fully non-corrodible specification | Standard magnetic piston
Medium
Compressed air
Operating Temperature
-5 ... 80 °C, 23 ... 176 °F
Operating Pressure
2 ... 10 bar, 29 ... 145 psi
Port Size
G1/8
Cylinder diameter
40 mm
Stroke Length
20 mm
Operation
Single acting
Cushioning
No cushioning
Magnetic/Non-magnetic
Magnetic
Theoretical Force
687 N
Materials - Barrel
Anodised aluminium alloy
Materials - Piston Rod
Stainless steel (austenitic)
Range
RM/91000/M
Brand
IMI Norgren
Feature: 40 mm cylinder bore and 20 mm stroke deliver a compact actuator footprint that fits tight installation envelopes. Business Impact: Frees valuable space on crowded lines while maintaining adequate travel for short-stroke pick-and-place tasks. Application: Robotics-assisted assembly on small product carriers and packaging lines where space is at a premium. Feature: Single-acting operation with no cushioning offers straightforward control and reduced component count. Business Impact: Lower upfront costs, simpler maintenance, and faster cycle times with predictable stopping behavior. Application: Lightweight clamping and material handling tasks in automotive and electronics assembly environments. Feature: Magnetic piston enables straightforward end-of-stroke sensing. Business Impact: Easier sensor integration for position feedback, enabling closed-loop control and safer automation. Application: PLC- or microcontroller-based monitoring in pick-and-place and inspection stations. Feature: Anodised aluminium barrel and stainless steel piston rod provide corrosion resistance and long life. Business Impact: Improved durability in harsh manufacturing environments and reduced replacement intervals. Application: Food-contact and wash-down capable lines (where applicable by system design) and general industrial automation. Feature: Operating range of 2 to 10 bar and -5 to 80 °C supports versatile installation across machines and processes. Business Impact: Broad compatibility with existing compressed air networks and ambient conditions, minimizing the need for special tooling. Application: General purpose automation across packaging, handling, and testing lines. Feature: G1/8 port sizing and standard fittings simplify installation and maintenance. Business Impact: Quicker system integration, easier leak checking, and straightforward hose/connector sourcing. Application: Retrofit projects and new-build lines across industrial facilities.

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FAQs

For installation, ensure compatible G1/8 fittings are used and that mounting surfaces are clean and square to prevent misalignment. The single-acting design means end-of-stroke impact should be managed with appropriate speed controls or external cushions in high-speed cycles, though this model ships with no internal cushioning. Verify purge air cleanliness and install in a secure, vibration-minimized location to maximize service life.
The RM/91040/M/20 operates between 2 and 10 bar. To maintain consistent performance, supply clean, dry compressed air and monitor for moisture or particulates that could affect seals. Regularly inspect hose connections and port seals for leaks. If your cycle demands higher speeds or frequent starts/stops, balance control with your air preparation equipment.
While the cylinder offers robust thrust (687 N) and a compact form factor, its single-acting design with no internal cushioning means high-speed, heavy-impact cycles can risk premature wear. For high-speed tasks, pair it with controlled air flow, external cushions, or slower ramp profiles, and consider application-specific testing to confirm durability over the expected lifecycle.
The magnetic piston allows clean, reliable end-of-stroke sensing using reed or Hall-effect sensors. This simplifies integration with PLCs and sensors, enabling straightforward closed-loop control and precise travel validation. Position sensing is particularly advantageous in automated pick-and-place, clamping, and alignment tasks where repeatable end positions are critical.
The barrel is made from anodised aluminium alloy and the piston rod from stainless steel (austenitic), which provides good corrosion resistance and long life in harsh environments. These materials support reliable operation in normal manufacturing settings and improve resistance to wear, reducing maintenance frequency and total cost of ownership.