Norgren RM/980/550 Tie Rod Double Acting Cylinder - 8" Bore
Part Number: RM/980/550
Quick Summary
Norgren RM/980/550 is a tie rod double-acting cylinder for heavy-duty linear actuation in manufacturing. Many engineers face reliability challenges under high-cycle duty and need a long-stroke solution that maintains precision across rugged environments. In practice, CE conformity for European markets, SIL safety considerations in control schemes, and IP-rated protection for dust and moisture exposure are critical. This model combines an 8-inch bore, 550 mm stroke, and adjustable cushioning with a durable anodised aluminium barrel and stainless steel piston rod to deliver dependable performance and steady cost-per-cycle.
Product Information
Extended Description
RM/980/550 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
550 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/980/550 leverages a tie rod double-acting design to deliver strong thrust in both directions, improving cycle consistency and reducing downtime from misalignment. Its 8-inch bore and 550 mm stroke translate into a theoretical force of 19,417 N, enabling robust handling of heavier components in material handling and automated assembly lines. Adjustable cushioning minimizes impact and vibration, extending guide life and enabling smoother starts in high-speed production environments. The anodised aluminium barrel and martensitic stainless steel piston rod provide reliable corrosion resistance and durability in challenging shop-floor conditions, while the non-magnetic construction helps prevent interference in precision setups. Operating between -20 to 80 °C and 2 to 10 bar, it tolerates typical plant environments with consistent performance and reduced maintenance needs. A broad range of mountings and compatibility with the RM/900 family simplifies retrofits and long-term scalability for evolving automation programs. Service accessibility is enhanced by QM/980/00 service kits, enabling quick field maintenance and reduced downtime.
Get a Quick Quote for a Norgren RM/980/550
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 RM/980/550?
Enquire Now
FAQs
The RM/980/550 offers an extensive range of mounting options to suit diverse installations, including multiple piston rod orientations and bracket configurations. Its compatibility with the RM/900 range simplifies retrofits across existing lines, and the service kit QM/980/00 provides part-numbered maintenance support for field installations, minimizing downtime during upgrade or servicing.
This cylinder operates from -20 to 80 °C and supports 2 to 10 bar (29 to 145 psi) of compressed air. With a G3/4 port size and an 8" bore, it is suitable for typical industrial environments, including packaging, material handling, and assembly lines where robust pneumatic actuation is required.
Yes. The 8" bore, 550 mm stroke, and a theoretical thrust of 19,417 N provide strong push-pull capability even under demanding cycle rates. Adjustable cushioning helps absorb impact at the end of stroke, reducing wear on guides and reducing cycle-induced vibrations in high-speed packaging and handling applications.
Maintenance is supported by the QM/980/00 service kits designed for RM/900 series cylinders, including the RM/980/00 variant. Regular maintenance intervals, plus the availability of service kits, help prolong life, ensure consistent performance, and minimize downtime during scheduled maintenance or field repairs.
The RM/980/550 uses an anodised aluminium barrel for rigidity and corrosion resistance, paired with a martensitic stainless steel piston rod for strength and wear resistance. Its non-magnetic construction reduces interference in precision setups, making it well-suited for demanding industrial environments.