Norgren RM/980/1250 Tie Rod Cylinder - 1250 mm Stroke
Part Number: RM/980/1250
Quick Summary
Norgren RM/980/1250 tie rod cylinder delivers robust linear motion for heavy automation tasks in manufacturing and packaging lines. Engineers often struggle with long-stroke motion, reliable cushioning, and flexible mounting in large-bore cylinders, leading to longer setups and more components. Its design aligns with common industry certifications and standards, including CE compliance, SIL safety considerations, and IP-rated configurations where applicable. By combining a rugged aluminium barrel, a martensitic stainless piston rod, and adjustable cushioning, this cylinder provides dependable performance across harsh environments. For buyers, this means lower total cost of ownership, reduced maintenance cycles, and easier integration with standard Norgren mounting accessories and service kits, all while supporting high-cycle production workflows and predictive maintenance programs.
Product Information
Extended Description
RM/980/1250 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
1250 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/980/1250 features an 8-inch bore and a 1250 mm stroke, delivering substantial thrust and extended travel in a single compact unit. This long-stroke capability translates into faster cycle times and the ability to consolidate multiple actuators on stamping, forming, and heavy-packaging tasks, reducing footprint and simplifying maintenance. With a tie-rod double-acting design, the cylinder provides reliable bidirectional actuation and a wide range of mounting options, simplifying installation in tight spaces and allowing easy retrofits on existing machinery. Adjustable cushioning gives precise deceleration at end-of-stroke, minimizing shock loads and wear on machine beds, which extends tool life and improves precision in high-cycle packaging lines and transfer systems. The anodised aluminium barrel paired with a stainless steel martensitic piston rod delivers corrosion resistance and high strength in dusty, damp, or harsh plant floors, while the non-magnetic construction reduces interference with nearby sensors and automation hardware. Theoretical force of 19,417 N and a 2–10 bar operating window ensure consistent performance across demanding tasks, from heavy lifting to clamping. Compatibility with G3/4 porting, standard mounting types, and the RM/900 family supports a straightforward upgrade path within the Martonair series, with QM/980/00 service kits available to streamline field maintenance and downtime reduction.
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FAQs
Install the RM/980/1250 using standard mounting brackets compatible with 8 inch bore cylinders in the RM/900 family. Secure the cylinder with appropriate end brackets, align the load path, connect the G3/4 air supply, and adjust the end-of-stroke cushioning as required. Keep the QM/980/00 service kit on hand for maintenance and parts replacement to minimize downtime.
The cylinder operates at 2 to 10 bar (29 to 145 psi) and is rated for temperatures from -20 to 80 °C (-4 to 176 °F). The compressed air medium and the G3/4 port support standard plant air systems. For consistent performance, ensure clean, dry air and an FRL (filter-regulator-lubricator) setup in the supply line.
Yes. The 8-inch bore and 1250 mm stroke enable high payload handling and long travel, while adjustable cushioning protects tooling and fixtures. This makes the cylinder well-suited for stamping, heavy-packaging, and high-cycle material handling, reducing downtime and simplifying line design by consolidating actuators where space is limited.
Industrial cylinders commonly align with CE marking for European compliance and safety guidelines for control integration (SIL considerations). Non-magnetic construction helps sensor compatibility, and optional IP-rated configurations may be used when needed. Always verify the supplier’s current certifications and ensure your control system, guards, and safety interlocks meet applicable regulations for your region.
Maintenance is streamlined with the QM/980/00 service kit designed for RM/900-series components. Regular cushioning adjustments, air quality checks, and end-cap inspections help sustain performance. The combination of longer service intervals and reduced component swaps translates to lower downtime and higher line availability, delivering a favorable return on investment in busy production environments.