Norgren RM/980/650 Tie Rod Cylinder - 650 mm Stroke
Part Number: RM/980/650
Quick Summary
RM/980/650 tie rod cylinder provides robust pneumatic actuation for heavy-duty automation lines. Engineers rely on this model for long-stroke, high-force applications like material handling and machine tending. When mounting options are limited or cushioning needs vary, the adjustable cushioning and durable construction help maintain accuracy and reduce downtime. While the datasheet does not explicitly list CE, SIL, or IP ratings, the design features a non-magnetic piston rod, an anodised aluminium barrel, and a broad operating range that support mission-critical operations. In practice, this cylinder enables OEMs and maintenance teams to standardize components while preserving efficiency and cost-effectiveness.
Product Information
Extended Description
RM/980/650 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
650 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" bore and 650 mm stroke deliver substantial theoretical force for demanding tasks. Business Impact: Enables tight cycle times and reliable actuation in presses, clamps, and line feeds, reducing cycle time variability. Application: Material handling and stamping lines benefit from consistent stroke control. Long-tail keywords: tie rod cylinder, heavy-duty pneumatic actuator, high-force cylinder, long-stroke pneumatic cylinder.Feature: Adjustable cushioning provides customizable deceleration. Business Impact: Minimizes shock to machinery and workpieces, extending tool life and reducing maintenance. Application: Clamping and part transfer stages where precise stop positions matter. Long-tail keywords: adjustable cushioning, shock absorption cylinder, controlled stop.Feature: Non-magnetic piston rod and anodised aluminium barrel resist corrosion and wear. Business Impact: Improves longevity in humid or dirty environments, lowering replacement costs. Application: Food/packaging, robotics, and rugged manufacturing settings. Long-tail keywords: non-magnetic cylinder, corrosion-resistant barrel, durable pneumatic cylinder.Feature: G3/4 port size with 2–10 bar operating pressure range. Business Impact: Flexible integration with standard plant air systems and easy commissioning across multiple lines. Application: General purpose automation and machine tending. Long-tail keywords: G3/4 port, operating pressure 2-10 bar, pneumatic supply compatibility.Feature: Stainless steel (martensitic) piston rod enhances durability under heavy cycles. Business Impact: Reduces downtime from rod wear and produces cleaner rod surfaces for sealing performance. Application: Repetitive cycle applications like pick-and-place and press feeds. Long-tail keywords: stainless steel rod, martensitic rod, long-life piston rod.Feature: Serviceable with QM/980/00 kits supports lifecycle maintenance. Business Impact: Lowers total cost of ownership with easier field servicing and extended uptime. Application: OEM maintenance plans and aftermarket support. Long-tail keywords: service kit RM/900, maintenance for RM/980 series, field servicing.Industry insight: The RM/980/650 is favoured in Martonair-based lines for its rugged build and broad compatibility with mounting configurations. In practice, engineers specify this model where long stroke, high force, and resilient cushioning are prerequisites for consistent process reliability and equipment uptime.
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FAQs
The RM/980/650 supports a range of mountings compatible with standard industrial configurations, including foot, flange, and clevis-style fittings designed for tie rod cylinders. When selecting mounts, verify alignment and stroke path to prevent binding. The extended RM/900 family provides predictable interchangeability, while service kits QM/980/00 support routine maintenance and seal replacement during mounting.
This model uses compressed air as the medium, with an operating pressure range of 2 to 10 bar (29 to 145 psi). The medium and temperature range allow operation from -20 to 80 °C (-4 to 176 °F). The port size is G3/4, which matches common plant air supply fittings. Ensure proper filtration and lubrication per application to achieve peak performance.
Yes. With a 8" bore, 650 mm stroke, and a theoretical force around 19,417 N, this cylinder provides strong actuation for material handling and clamping. It is double-acting for reliable drive in both extension and retraction, and its adjustable cushioning helps manage impact and repeatability. This makes it well-suited for high-cycle applications in manufacturing lines.
Maintenance for RM/980/650 is supported by the QM/980/00 service kit, designed for RM/900 8" cylinders and compatible with RM/980 variants. Regular seal replacement, lubrication checks, and cushion adjustments help maintain performance. Always consult the official datasheet for service intervals and use genuine Norgren parts to preserve warranty and reliability.
Adjustable cushioning allows you to fine-tune deceleration at the end of stroke, reducing mechanical stress and vibration. This improves positioning accuracy and extends seal and rod life by limiting impact forces. In repetitive automation cycles, tailored cushioning translates to lower maintenance needs and steadier cycle times, especially in high-speed or high-load scenarios.