Norgren RM/980/520 Pneumatic Cylinder - Adjustable Cushion
Part Number: RM/980/520
Quick Summary
Norgren RM/980/520 Pneumatic Cylinder delivers high-force linear actuation for heavy-duty automation lines. Engineers often struggle with wear, misalignment, and downtime when specifying large-bore cylinders for production bottlenecks. Typical industry expectations include CE compliance, IP-rated ruggedness, and SIL-ready control compatibility for safe, predictable operation. This model’s rugged construction and adjustable cushioning support reduced downtime, while the large bore and stainless piston rod offer dependable, long service life—ideal for high-volume assembly lines and demanding industrial environments. Leveraging Norgren’s Martonair lineage, it also aligns with scalable automation strategies and maintenance-friendly design for modern manufacturing needs.
Product Information
Extended Description
RM/980/520 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
520 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"
Feature: 8 inch bore provides high load capacity and enables 19,417 N theoretical force. Business Impact: Fewer actuators required per line reduces system complexity and capital expenditure. Application: Heavy-duty material handling and press-feed applications where peak force is essential. Feature: Double-acting cylinder with adjustable cushioning allows controlled deceleration and impact absorption. Business Impact: Minimizes wear on end-of-stroke fixtures, extends service intervals, and lowers maintenance costs. Application: Clamp and stop operations in high-cycle environments. Feature: Anodised aluminium barrel paired with a martensitic stainless steel piston rod delivers corrosion resistance and durability in harsh industrial settings. Business Impact: Prolonged service life, reduced replacement cycles, and improved reliability in damp or dirty environments. Application: Outdoor or wash-down compatible automation lines. Feature: Port size G3/4 and compatibility with an extensive range of mountings simplify installation and retrofit projects. Business Impact: Faster deployment, easier alignment, and reduced installation costs. Application: Retrofit into legacy systems or modular automation cells. Feature: RM/900 range lineage and Martonair series provide proven interchangeability and availability of service parts. Business Impact: Lower total cost of ownership through standardized spares and streamlined procurement. Application: Large-scale rollouts across multiple cells and lines. Feature: Non-magnetic construction supports operation in proximity to sensitive electronics and magnetic environments. Business Impact: Minimizes interference and maintains precise actuation in control-heavy environments. Application: Robotics interfaces and assembly lines with magnetic field considerations. Feature: Optional QM/980/00 service kits enable rapid maintenance and parts replacement. Business Impact: Reduces downtime, improves uptime reliability, and supports preventive maintenance programs. Application: Regular maintenance cycles and fleet-wide service planning.
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FAQs
The RM/980/520 offers an extensive range of mountings designed to complement large-bore tie-rod cylinders. Installation is streamlined by standardised mounting patterns and a robust G3/4 port configuration, enabling quick alignment and secure fixation. For retrofits, verify existing mounting footprints and reference the RM/900 family compatibility to ensure cross-compatibility with your current hardware.
Key specs to consider include an 8 inch bore and 520 mm stroke, 2–10 bar operating pressure, and a theoretical force of 19,417 N. Operating temperature ranges from -20 to 80 °C, with a G3/4 port. These parameters define suitability for heavy-duty material handling, clamp cycles, and press-feed operations in demanding environments.
Yes, thanks to the combination of a rugged anodised aluminium barrel, martensitic stainless steel piston rod, adjustable cushioning, and non-magnetic construction. This design supports high-cycle reliability and controlled deceleration at stroke end, reducing wear on fixtures and extending service intervals in demanding manufacturing lines.
Certification specifics depend on configuration and regional requirements. Typical industry expectations include CE compliance, IP-rated ruggedness, and SIL-ready control interfaces for safe operation. To confirm exact certifications for your setup, consult the datasheet and verify the installed options with your local compliance team before integration.
Service kits such as QM/980/00 are available for RM/900-8 inch variants, enabling rapid part replacement and preventive maintenance. Plan regular cushioning checks, inspect the piston rod and seals during scheduled downtime, and stock spares aligned with RM/900 compatibility to ensure quick turnarounds on critical lines.