Norgren RT/57250/JM/80 Roundline Cylinder - Magnetic
Part Number: RT/57250/JM/80
Quick Summary
Norgren RT/57250/JM/80 Roundline Cylinder is a compact double-acting pneumatic actuator designed for precise linear motion in automation and packaging lines. In tight spaces, conventional cylinders waste clearance and slow cycle times; this Roundline model delivers a smaller footprint without compromising stroke or force. The design aligns with common safety and industry standards, including CE-compliant machinery integration and robust environmental sealing in many configurations. With a 50 mm bore and 80 mm stroke, plus a magnetic piston for reliable sensing, it offers excellent control versatility. The stainless steel barrel and piston rod elevate durability, while standard Rc1/4 porting and mounting compatibility simplify integration into existing systems for cost-effective maintenance.
Product Information
Extended Description
RT/57250/JM/80 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
1 ... 10 bar, 15 ... 145 psi
Port Size
Rc1/4
Cylinder diameter
50 mm
Stroke Length
80 mm
Operation
Double acting
Cushioning
Buffer cushioning
Magnetic/Non-magnetic
Magnetic
Theoretical Force
1178 N
Materials - Barrel
Stainless steel (austenitic)
Materials - Piston Rod
Stainless steel (martensitic)
Range
RT/57200/M
Series
Roundline
Brand
IMI Norgren
Feature: 50 mm bore with an 80 mm stroke reduces overall length and allows for tighter machine layouts. Business Impact: Maximizes usable envelope, enables denser line layouts, and lowers enclosure footprint while maintaining performance. Application: Packaging lines and assembly cells where space is at a premium. Paragraph 2: Feature: Low-friction, long-life seals improve lifecycle cost and sustain high cycle rates. Business Impact: Reduces maintenance intervals, lowers total cost of ownership, and delivers consistent repeatability in automated pick-and-place tasks. Application: High-speed conveyors and continuous-operation stations. Paragraph 3: Feature: Standard magnetic piston enables full control system versatility and easier sensing. Business Impact: Simplifies integration with sensors and PLCs, improving feedback accuracy and reducing wiring complexity. Application: Position sensing in robotics-assisted assembly. Paragraph 4: Feature: Stainless steel barrel and stainless steel piston rod provide corrosion resistance and structural strength. Business Impact: Extends service life in challenging environments and supports optional washdown or exposure to humidity. Application: Food, beverage, and dry environments where cleanability matters. Paragraph 5: Feature: Buffer cushioning and a robust end-cap design mitigate impact loads. Business Impact: Reduces vibration, saves components from shock damage, and allows higher duty-cycle operation. Application: Fast cycling operations with near-end travel. Paragraph 6: Feature: Rc1/4 port size with standard mounting patterns and 1–10 bar operating pressure range. Business Impact: Facilitates quick hose/pipe connections and reliable performance across typical plant air systems. Application: Broad automation use across multiple industries. Paragraph 7: Feature: Temperature range -10 to 80 °C and a theoretical force of 1178 N at rated conditions. Business Impact: Ensures predictable performance in fluctuating environments and supports consistent actuation under load. Application: Medium-load actuations on line-side equipment and conveyors.
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FAQs
Mounting the RT/57250/JM/80 in tight enclosures is straightforward thanks to its compact 50 mm bore and 80 mm stroke. Use standard ISO/VDMA-compatible end caps and mounting feet, ensuring alignment with the piston rod axis to minimize side loads. The Rc1/4 porting supports conventional air lines, and the magnetic piston enables sensing without requiring additional mounting hardware. For best results, ensure a clean, dry air supply and verify that environmental conditions stay within -10 to 80 °C and 1 to 10 bar pressure.
RT/57250/JM/80 uses Rc1/4 port size, compatible with standard compressed air in typical industrial environments. The cylinder is designed for clean, lubricated or dry compressed air and operates over a broad temperature range (-10 to 80 °C). confirming compatibility with your air preparation components (filters, regulators, lubricators) helps ensure reliable performance and extended lifespan in demanding applications.
The 50 mm bore and 80 mm stroke provide a balanced combination of force and travel in space-constrained lines. This makes the cylinder ideal for pick-and-place, small-component assembly, and compact packaging stations where precise positioning and repeatable motion are required. The magnetic piston also supports reliable sensing for feedback control, enhancing automation reliability in inline conveyors and transfer stations.
Yes, RT/57250/JM/80 features a standard magnetic piston, enabling straightforward integration with magnetic sensing solutions and proximity switches. This simplifies encoderless position feedback and PLC interlocks, reducing wiring and simplifying diagnostics. Pair the magnetic piston with your control system’s sensor inputs to achieve reliable home/limit sensing and repeatable positioning across multiple actuations.
To extend life, run the cylinder within its specified operating range of -10 to 80 °C and 1 to 10 bar with a clean, dry air supply. The buffer cushioning reduces impact loads and wear, while stainless steel barrel and piston rod resist corrosion in challenging environments. Regularly inspect end caps, seals, and ports for signs of wear, and replace seals proactively based on cycle count and operating conditions to maintain peak performance.