Norgren RT/57308/M/25 Roundline Cylinder - Magnetic
Part Number: RT/57308/M/25
Quick Summary
Norgren RT/57308/M/25 is a Roundline single acting cylinder designed for compact pneumatic actuation in automation systems. Engineers often struggle with limited space on small-assembly lines, and this cylinder’s 8 mm bore with a 25 mm stroke minimizes footprint without sacrificing reach. The stainless steel barrel and piston rod, along with a magnetic piston, align with common industry standards such as CE-style compliance considerations and IP-rated components where defined in the datasheet, aiding integration in challenging environments. This design delivers reliable actuation with low-friction seals and buffer cushioning, supporting predictable performance in high-cycle applications. By pairing easy installation with standard mounting compatibility and robust construction, you gain both efficiency and long-term value for everyday pneumatic tasks.
Product Information
Extended Description
RT/57308/M/25 Norgren: Saves 20% space over the basic length of a corresponding ISO/VDMA cylinder | Low friction, long life seals | High strength, double crimped end cap design | Standard magnetic piston for full control system versatility
Medium
Compressed air
Operating Temperature
-10 ... 80 °C, 14 ... 176 °F
Operating Pressure
3 ... 10 bar, 43 ... 145 psi
Port Size
M3
Cylinder diameter
8 mm
Stroke Length
25 mm
Operation
Single acting
Cushioning
Buffer cushioning
Magnetic/Non-magnetic
Magnetic
Theoretical Force
18.6 N
Materials - Barrel
Stainless steel (austenitic)
Materials - Piston Rod
Stainless steel (austenitic)
Range
RT/57300/M
Series
Roundline
Brand
IMI Norgren
Feature: Space-saving Roundline geometry and 8 mm bore with a 25 mm stroke reduce installation footprint while maintaining actuation reach. Benefit: Frees up machine space and simplifies enclosure design, enabling tighter automation layouts and easier maintenance in compact cells. Application: Small packaging lines and pick-and-place stations where every millimeter counts. The cylinder saves 20% space over the basic ISO/VDMA length, improving line density and reducing cabinet footprint. Feature: High-durability stainless steel (austenitic) barrel and piston rod with low-friction seals. Benefit: Superior corrosion resistance and longer service life in challenging environments, lowering replacement cycles and maintenance costs. Application: Food & beverage, washdown-near lines, and outdoor automation where moisture or cleanup is common. Feature: Standard magnetic piston for full control system versatility. Benefit: Easy integration with sensors and position feedback for reliable automation sequencing, enabling simple inline diagnostics and faster fault detection. Application: Sensorized end-effectors, automated pick-and-place, and precise stop positions. Feature: Buffer cushioning and double-crimped end cap design. Benefit: Reduced impact loads, lower vibration, and extended life of seals and guides, which translates to higher cycle life and smoother operation. Application: High-speed cycling in packaging and assembly lines where peak performance matters. Feature: Wide operating range and compact porting. Benefit: Works across temperatures from -10 to 80 °C and pressures from 3 to 10 bar with an M3 port, delivering dependable actuation in varying shop-floor conditions. Application: General automation, linear actuators, and fixture actuation in mixed environments. Feature: Theoretical force of 18.6 N with stable magnetic sensing. Benefit: Predictable thrust for small grippers and positioning tasks, ensuring repeatability and consistent clamping or pushing actions. Application: Small part handling, alignment, and fixture actuation across multiple industries.
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FAQs
The RT/57308/M/25 is designed for compatibility with standard mounting options used by Roundline cylinders, including commonly used ISO/VDMA patterns. Its compact 8 mm bore and 25 mm stroke integrate with typical end-cap and head-plate assemblies, allowing rapid installation with existing linear guides and brackets. When selecting a mount, verify alignment tolerances and ensure that end-cap fasteners are tightened to the manufacturer’s recommended torque to maintain seal integrity and consistent stroke.
At 3–10 bar, the RT/57308/M/25 delivers a theoretical force of 18.6 N, suitable for small actuations such as micro-positioning or clamping in tight spaces. The design uses low-friction seals to minimize friction losses, and buffer cushioning to reduce impact. This combination supports repeatable cycling in high-speed applications while preserving seal life and reducing vibration-induced wear.
Yes. The cylinder features a standard magnetic piston, enabling straightforward integration with position sensors and control logic. This facilitates reliable feedback for automation sequences, enabling programmable stop positions, end-of-stroke sensing, and smooth coordination with PLC or industrial controllers in compact actuating tasks.
Regular maintenance should focus on inspecting the buffer cushioning and seals for wear, checking end-cap integrity, and confirming port connections remain secure with proper torque. The stainless steel construction provides corrosion resistance, supporting longer maintenance intervals in challenging environments. Implement a light lubrication regime per the datasheet and replace worn components promptly to preserve performance and cycle life.
This cylinder is ideal for compact actuation tasks in packaging, small assembly lines, and precision positioning where space is limited. Its 8 mm bore and 25 mm stroke suit micro-gripper applications and light clamping functions, while the magnetic piston supports sensor feedback. Use it to improve line density, reduce machine footprint, and simplify sensor integration in high-cycle pneumatic automation.