Norgren RM/980/155 Pneumatic Cylinder – 8in Bore, Double Acting
Part Number: RM/980/155
Quick Summary
RM/980/155 Pneumatic Cylinder from Norgren delivers robust linear actuation for automation and packaging lines. Engineers often struggle with inconsistent cushioning and wear under heavy loads, leading to downtime and unpredictable cycle times. CE compliance, reliable operation across -20 to 80 °C and 2–10 bar, and durable build are critical for industrial installations; verify the exact configuration against your safety and environmental requirements. The RM/980/155 builds on the proven RM/900 Martonair family with adjustable cushioning and a long-established rugged design, enabling quick installation and predictable performance. By combining a lightweight anodised aluminium barrel with a martensitic stainless piston rod, this cylinder supports high-cycle production, reduces maintenance costs, and improves overall equipment effectiveness in automated lines.
Product Information
Extended Description
RM/980/155 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
155 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: Large bore with high theoretical force enables handling of demanding loads without compromising accuracy. Business Impact: Higher load capacity reduces cycle times and minimizes deflection, improving repeatability in pick-and-place and stamping applications. Application: Heavy-duty assembly lines and material handling systems benefit from consistent motion and reduced downtime. Feature: Double-acting operation with adjustable cushioning provides controlled deceleration and return strokes. Business Impact: Less impact on machine frames and components translates to longer equipment life and lower maintenance costs. Application: Fast indexing and high-speed transfer points in packaging and automation lines. Feature: Anodised aluminium barrel and stainless steel, martensitic piston rod offer corrosion resistance and wear longevity. Business Impact: Extended service intervals and reduced replacement parts contribute to lower total cost of ownership. Application: Harsh manufacturing environments or washdown areas where durability matters. Feature: G3/4 port size and compatibility with RM/900 range simplify installation and retrofits. Business Impact: Quick integration with existing manifolds and control systems minimizes downtime and engineering effort. Application: Retrofit projects and new line builds that require reliable, compatible pneumatic actuation. Feature: Wide operating temperature and pressure range (-20 to 80 °C, 2–10 bar) broadens application scope. Business Impact: Supports diverse industrial environments, from cold chillers to warm extrusion lines, without needing special variants. Application: Global manufacturing deployments and multi-site programs where standardization reduces procurement complexity. Feature: Non-magnetic construction aids integration with precision instrumentation and nearby sensors. Business Impact: Minimizes magnetic interference in process control and metrology environments. Application: Robotics cells and inspection stations where sensor accuracy matters.
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FAQs
The RM/980/155 uses the RM/900 lineage with similar mounting patterns and port configuration (G3/4). To ensure seamless retrofits, confirm bore alignment, mounting holes, stroke clearance, and port access. Use compatible brackets and end-blocks, and verify cushion settings to avoid unexpected contact during initial cycles.
Operating pressure ranges from 2 to 10 bar (29 to 145 psi) with a temperature range from -20 to 80 °C (-4 to 176 °F). These specs support high-cycle applications across varied industrial environments, but ensure lubrication and condensate management are appropriate for your system to maintain consistency.
Yes. The 8 inch bore provides substantial force (theoretical 19417 N) and adjustable cushioning delivers smooth starts and stops, reducing impact loads on machinery. Its compatibility with standard ports and RM/900 accessories helps maintain cycle precision and uptime in high-speed packaging and indexing tasks.
Key industry standards to verify include CE safety compliance and applicable safety ratings (SIL/CSL) and IP protection where relevant to your environment. Since exact certification details depend on configuration, review the specific datasheet and consult your compliance team to confirm the RM/980/155 meets your facility’s regulatory requirements.
The ROI comes from longer service intervals due to corrosion-resistant materials, reduced maintenance via adjustable cushioning, and lower downtime thanks to reliable double-acting operation and consistent performance. In practice, customers see improved line throughput, fewer part replacements, and lower total cost of ownership over the cylinder’s service life.