Norgren RM/980/X/40 Pneumatic Cylinder - 40 mm Stroke
Part Number: RM/980/X/40
Quick Summary
RM/980/X/40 is a tie-rod double-acting pneumatic cylinder for heavy-duty linear actuation in manufacturing. A common challenge is delivering consistent cushioning and reliable performance under demanding temperature and pressure conditions. This unit’s adjustable cushioning, rugged design, and non-magnetic stainless steel piston rod help ensure repeatable strokes and long service life. The configuration supports 2 to 10 bar air pressure and operating temperatures from -20 to 80 °C, making it suitable for tough factory environments. Designed with a robust anodised aluminium barrel and G3/4 port, it offers extensive mounting options and easy service via the QM/980/00 service kit. For teams seeking predictable uptime and higher actuation force, this cylinder translates to improved line throughput and lower maintenance costs, delivering real business value in automated processes.
Product Information
Extended Description
RM/980/X/40 Norgren: Large range of bore sizes – ideal for a wide variety of industrial applications | Long established design – proven ruggedness and reliability | Extensive choice of mountings | Adjustable cushioning
Medium
Compressed air
Operating Temperature
-20 ... 80 °C, -4 ... 176 °F
Operating Pressure
2 ... 10 bar, 29 ... 145 psi
Port Size
G3/4
Cylinder diameter
8"
Stroke Length
40 mm
Operation
Double acting
Cushioning
Adjustable cushioning
Magnetic/Non-magnetic
Non-magnetic
Theoretical Force
19417 N
Materials - Barrel
Anodised aluminium
Materials - Piston Rod
Stainless steel (martensitic)
Range
RM/900
Series
Martonair
Brand
IMI Norgren
QM/980/00
Service kits for RM/900, 8"
The RM/980/X/40 features an 8 inch bore in a double-acting layout, delivering substantial thrust for high-force actuation in presses, transfer lines, and robotic grippers. This combination enables reliable, uninterrupted cycles in demanding applications while reducing cycle times and staffing requirements. Adjustable cushioning minimizes impact at the end of stroke, protecting machinery and extending seal life. In practice, tune damping to match load, improving accuracy and reducing shock transmitted to downstream components. Constructed with an anodised aluminium barrel and a martensitic stainless steel piston rod, the cylinder combines corrosion resistance with stiffness. The non-magnetic design is advantageous in electrical environments where magnetic interference must be avoided. Port size G3/4 and a 2-10 bar operating range provide flexible integration with existing plant air systems. The operating temperature span of -20 to 80 °C supports outdoor or harsh indoor installations without compromising performance. Extensive mounting options simplify installation, while compatible service kits such as QM/980/00 reduce downtime during maintenance. The RM/980/X/40 is part of the RM/900 series under the Martonair line, which ensures spare parts availability and long-term support. Bottom line: with high theoretical force (approximately 19.4 kN) and rugged construction, this cylinder reduces maintenance costs and improves line throughput in demanding automation tasks.
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FAQs
The RM/980/X/40 operates with an air supply in the range of 2 to 10 bar (29 to 145 psi). This makes it compatible with standard plant air systems. For consistent performance, ensure the regulator maintains a stable pressure within this band and use the G3/4 port for reliable connections.
The cylinder features an 8 inch bore and a 40 mm stroke. This combination provides high thrust for demanding actuation while preserving a compact footprint suitable for many automation layouts. Check available space to accommodate the 8 inch bore and ensure stroke complies with your end-of-travel requirements.
The barrel is made from anodised aluminium and the piston rod from martensitic stainless steel. The non-magnetic construction helps minimize interference near sensors and electronics, while the aluminium barrel offers weight savings and corrosion resistance. These material choices support long lifecycle and reliable performance in harsh factory environments.
Yes. Service kits QM/980/00 are available for RM/900, 8 inch cylinders, facilitating routine maintenance and parts replacement. Using the official service kit ensures correct seals, cushions, and components are installed, helping to maintain performance, reduce downtime, and extend the cylinder’s service life.
Norgren provides an extensive range of mounting options to suit push, pull, and various misalignment tolerances. When selecting a mounting, consider load direction and potential side loads to avoid binding. The adjustable cushioning feature also helps accommodate mounting variations, improving repeatability and extending life in high-cycle automation.