Norgren RM/950/40 Pneumatic Cylinder - 7600 N
Part Number: RM/950/40
Quick Summary
Norgren RM/950/40 is a tie rod double-acting pneumatic cylinder designed for robust linear actuation in manufacturing automation. In demanding lines, engineers face mounting constraints, start-up shocks, and inconsistent cushioning that can shorten service life. This unit mitigates those challenges with an extensive range of mountings and adjustable cushioning for smoother starts and stops. While the data highlights rugged construction, verify CE compliance, IP ratings, and SIL considerations with the datasheet or supplier to ensure system safety. The combination of a 5 inch bore and 40 mm stroke delivers reliable force in tight cycles, while compatibility with RM/900-series components supports efficient procurement and maintenance, reducing downtime and total cost of ownership. A practical choice for high-volume automation.
Product Information
Extended Description
RM/950/40 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
G1/2
Cylinder diameter
5"
Stroke Length
40 mm
Operation
Double acting
Cushioning
Adjustable cushioning
Magnetic/Non-magnetic
Non-magnetic
Theoretical Force
7600 N
Materials - Barrel
Anodised aluminium
Materials - Piston Rod
Stainless steel (martensitic)
Range
RM/900
Series
Martonair
Brand
IMI Norgren
QM/950/00
Service kits for RM/900, 5"
Feature: 5 inch bore and 40 mm stroke paired with double-acting operation deliver high clamping and pushing forces. Business impact: enables reliable actuation across fast cycles and heavy loads, boosting throughput on automated production lines. Application: stamping, forming, and material handling where precise stroke and force are critical. Feature: Tie-rod construction with extensive mounting options. Business impact: flexible installation when retrofitting into existing frames, reducing engineering time and custom hardware costs. Application: scalable automation across multi-axis setups. Feature: Anodised aluminium barrel and martensitic stainless piston rod with non-magnetic construction. Business impact: corrosion resistance and low magnetic interference improve reliability in harsh environments and with sensitive equipment. Application: food/pharma manufacturing and packaging lines. Feature: Adjustable cushioning. Business impact: smoother deceleration reduces shock loads, extends seal life, and lowers maintenance needs. Application: high-cycle indexing and automated pick-and-place. Feature: Operating pressure range 2–10 bar and operating temperature -20 to 80 °C with G1/2 port size. Business impact: broad ambient compatibility and easy integration with standard pneumatic systems. Application: general purpose automation in varied climate conditions. Feature: Compatibility with RM/900 range and service kits QM/950/00. Business impact: simplified parts stocking and faster maintenance cycles, improving up-time. Application: ongoing equipment modernization and procurement planning.
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FAQs
The RM/950/40 uses a G1/2 port and a tie-rod cylinder design. Ensure mounting compatibility with existing Norgren brackets and frames, align the cylinder centerline, and select appropriate mounting accessories from the RM/900 family to minimize misalignment and leakage. Use the correct fasteners and torque per the datasheet, and consider adjustable cushioning to fine-tune impact without compromising cycle time.
The RM/950/40 has a theoretical force of 7600 N, achievable at around 6 bar. At lower pressures, force scales with supply pressure, so expect proportionally lower thrust at 2–4 bar. The operating range is 2–10 bar, so plan system pressure accordingly for high-load cycles and long production runs.
Yes. The 5 inch bore with 40 mm stroke, adjustable cushioning, and non-magnetic construction support high-cycle use. The rugged Martonair design and multiple mounting options help reduce cycle-to-cycle variation and wear, while service kits simplify preventive maintenance and fast replenishment of spare parts.
Check for CE certification for safety compliance and any IP rating for enclosure protection in your installation. Depending on the application, SIL capability may be evaluated within your system safety architecture. Always verify the final assembled unit's certifications in the supplier datasheet and procurement records.
Norgren offers service kits QM/950/00 for RM/900 series, including components for the RM/950/40. To minimize downtime, stock common seals, cushions, and rods, and leverage the RM/900 family spare parts ecosystem for quick maintenance and consistent performance.