Norgren RM/980/400 Pneumatic Cylinder - 8 inch bore

Part Number: RM/980/400
Manufacturer
Norgren
Part number
RM/980/400

Quick Summary

The Norgren RM/980/400 pneumatic cylinder provides robust double-acting actuation for heavy-duty automation applications. Operators contend with vibration, misalignment, and uncontrolled impact, which shorten service life without effective cushioning. In this class, customers typically expect CE compliance, reliable ingress protection, and SIL considerations for safety-critical systems to minimize downtime. Its anodised aluminium barrel, martensitic stainless piston rod, and extensive mounting options support long life and predictable performance, while adjustable cushioning directly reduces end-of-stroke shock. The RM/980/400 works with the RM/900 range and QM/980/00 service kits to simplify installation, maintenance, and spare-part planning—delivering tangible business value.

Product Information

Extended Description

RM/980/400 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
400 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"
Large bore and stroke deliver high linear force and long travel, enabling reliable actuation of heavy loads such as conveyors and clamp applications; theoretical force of 19,417 N ensures performance consistency across production shifts, improving cycle times and reducing the need for oversized alternative solutions. The double-acting design combined with adjustable cushioning provides precise control over deceleration, reducing vibration-related wear and improving component life on high-cycle lines and packaging equipment. Durable construction using an anodised aluminium barrel and martensitic stainless steel piston rod delivers corrosion resistance and long service life in challenging environments, while non-magnetic construction supports sensor accuracy in precision automation. Standard G3/4 port size and a wide operating range of 2–10 bar and -20 to 80 °C enable straightforward integration with common plant air systems and diverse process temps, reducing commissioning time. Extensive mounting options and RM/900-range compatibility, together with QM/980/00 service kits, simplify installation, retrofits, and spare-part planning, driving lower maintenance costs and faster ROI. With these features, engineers gain predictable performance, compliance alignment, and a robust foundation for high-throughput automated lines.

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FAQs

The RM/980/400 offers an extensive range of mountings designed for the RM/900 Martonair family. This makes installation straightforward on existing lines and enables easy relocation or reconfiguration of actuation points. When planning retrofits, check the service kits QM/980/00 for compatible mounting accessories and spare parts to minimize downtime.
Operating pressure is specified from 2 to 10 bar (29 to 145 psi), and operating temperature ranges from -20 to 80 °C (-4 to 176 °F). This makes the cylinder suitable for typical factory air systems and a broad range of ambient conditions encountered in automation lines.
Yes. With an 8 inch bore and a theoretical force of 19,417 N, the RM/980/400 is designed for demanding push-pull tasks. The large bore supports heavy loads, while adjustable cushioning helps maintain performance and service life on high-cycle operations such as material handling, clamping, and automated assembly.
Maintenance is supported by the QM/980/00 service kits for RM/900 series cylinders, including RM/980/400. These kits streamline routine servicing and parts replacement, helping to minimize downtime. Proper maintenance also helps preserve cushion performance and prolong piston rod integrity.
The provided data does not list specific certifications. For confirmation on CE, IP ratings, SIL considerations, or other regulatory approvals, consult the official datasheet or contact the manufacturer directly to verify compliance for your region and application.