Norgren RM/91020/M/40 Pneumatic Cylinder - Magnetic Piston
Part Number: RM/91020/M/40
Quick Summary
The RM/91020/M/40 by Norgren is a compact single-acting pneumatic cylinder designed for precise linear actuation in automated manufacturing. In space-constrained lines, engineers often battle with mounting conflicts, extended installation times, and maintenance headaches; this unit addresses those challenges with a short form factor and robust materials. For regulated environments, anticipate CE marking considerations, SIL safety levels where applicable, and IP-rated protection depending on the installation. The cylinder’s non-corrodible construction, magnetic piston, and standard M5 port support reliable sensing and fast integration. This combination translates to reduced downtime, longer service intervals, and a lower total cost of ownership across major automation applications.
Product Information
Extended Description
RM/91020/M/40 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
M5
Cylinder diameter
20 mm
Stroke Length
40 mm
Operation
Single acting
Cushioning
No cushioning
Magnetic/Non-magnetic
Magnetic
Theoretical Force
161 N
Materials - Barrel
Anodised aluminium alloy
Materials - Piston Rod
Stainless steel (austenitic)
Range
RM/91000/M
Brand
IMI Norgren
Feature: Compact dimension and 20 mm bore with a 40 mm stroke. Business Impact: Enables tighter machine footprints and closer actuator spacing, which reduces overall equipment width and can speed up cycle times in high-density layouts. Application: Pick-and-place stations and tooling fixtures where space is at a premium. Feature: Fully non-corrodible specification with an anodised aluminium barrel. Business Impact: Extends component life in washdown or humid environments, lowering replacement costs and unscheduled downtime. Application: Packaging lines and general manufacturing environments requiring durable, long-life actuation. Feature: Stainless steel (austenitic) piston rod and magnetic piston. Business Impact: Improves resistance to wear and enables straightforward position sensing with existing sensors, simplifying control integration and diagnostics. Application: Sensor-enabled control loops, PLC feedback, and condition monitoring. Feature: Operating pressure 2–10 bar and temperature range -5 to 80 °C. Business Impact: Offers broad compatibility with typical plant air systems and diverse process temperatures, reducing the need for multiple variants. Application: Industrial automation across multiple lines with consistent performance. Feature: Port size M5 and single-acting actuation with no cushioning. Business Impact: Easy integration into standard manifold blocks and quick cycling with predictable stopping behavior, while minimizing external parts for shock absorption. Application: Clamping, transfer, and cycling tasks that demand rapid, repeatable actuation. Feature: Theoretical force of 161 N at the given bore and stroke. Business Impact: Provides a clear performance envelope for load handling and actuation force planning, aiding procurement and safety assessments. Application: Press-feeding, fixture actuation, and material handling in mid-load scenarios.
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FAQs
For installation, ensure the M5 port is properly threaded and connected to clean, dry compressed air within the 2–10 bar range. Mount the cylinder in a stable orientation, align the piston rod trajectory with the load, and avoid side loading. The device uses a magnetic piston for sensing, so plan sensor placement accordingly. Since there is no cushioning, consider external stops to control impact in high-speed cycles and verify that the surrounding components are drum-free and free of leakage to maintain performance.
Key specifications include a 20 mm bore, 40 mm stroke, and a theoretical force of 161 N. Operating pressure is 2–10 bar, and the operating temperature range is -5 to 80 °C. The cylinder is single acting with no cushioning and features a magnetic piston, stainless steel rod, and an anodised aluminium barrel. These specs define its suitability for medium-load, space-constrained automation tasks while enabling reliable sensing and control.
The unit uses a non-corrodible construction with an anodised aluminium barrel and a stainless steel piston rod, which enhances durability in challenging environments. While this supports improved corrosion resistance, verify your specific IP rating and cleaning requirements with the supplier, as the provided data does not specify an IP designation. In high-cleanness or washdown contexts, ensure proper sealing practices and air quality to maintain performance.
The datasheet highlights robust materials and construction but does not list specific CE, SIL, or IP certifications. If your project requires regulatory compliance, confirm CE marking, safety integrity levels (SIL), and any necessary IP protection with the supplier or the official datasheet. These verifications help ensure compliance in EU and other regulated markets before installation.
You can expect lower maintenance costs due to a long-life seal design and non-corrodible components, reducing downtime and part replacements. The magnetic piston enables easy integration with existing sensors, simplifying diagnostics and control, which contributes to faster troubleshooting and a clearer path to ROI in automated lines and repetitive cycles. The compact form factor also minimizes space-related costs in busy production environments.