Festo CRDNG Stainless Steel Standard Cylinder — ISO 15552 Corrosion-Resistant Pneumatic Actuator (35 Models) Specs & Selection Guide
2026-06-14
The Festo CRDNG Series Stainless Steel Standard Cylinder is a corrosion-resistant pneumatic actuator conforming to ISO 15552 (ISO 6431 / VDMA 24562) international standards, specifically engineered for industrial applications in harsh environmental conditions. Featuring a fully stainless steel construction and Clean Design architecture, the CRDNG series offers single-ended piston rod (CRDNG) and double-ended piston rod (CRDNGS) variants, along with standard, double-ended (S2), and heat-resistant (S6) configurations to meet diverse application requirements. Its simplified serviceability design extends product life cycles while delivering sustainable operational value for users.
Key Features & Highlights
- ISO 15552 International Standard: Fully compliant with ISO 15552 (ISO 6431 / VDMA 24562) for excellent mounting compatibility and seamless interchangeability with same-spec cylinders from other brands
- Fully Stainless Steel Construction: Cylinder barrel, end caps, and piston rod manufactured from high-quality stainless steel with outstanding resistance to corrosive environmental conditions
- Clean Design Architecture: Smooth, easy-to-clean surfaces suitable for applications with stringent hygiene requirements
- Double-Ended Piston Rod Option (S2): CRDNG-S2 variant features piston rods extending from both ends, ideal for bidirectional operation in specialized applications
- Heat-Resistant Version (S6): Optimized for elevated temperature environments, expanding the applicable temperature range beyond standard cylinders
- Double-Ended Series (CRDNGS): CRDNGS series comes standard with double-ended piston rods, also available with heat-resistant S6 option
- Position Sensing: Compatible with proximity sensors for precise piston position detection and motion control
- Simplified Serviceability: Easy maintenance procedures extend product life cycles and support sustainable operations
Technical Specifications
| Parameter | Specification |
|---|---|
| Series | CRDNG / CRDNGS |
| Type | Stainless Steel Standard Cylinder (ISO 15552 Piston Rod Cylinder) |
| Piston Diameter Range | 32 / 40 / 50 / 63 / 80 / 100 / 125 mm |
| Cushioning | PPV – Adjustable pneumatic cushioning at both ends |
| Material | Stainless Steel (barrel, end caps, piston rod) |
| Variant Series | CRDNG Standard / CRDNGS Double-Ended Piston Rod |
| Configuration Variants | Standard / S2 Double-Ended / S6 Heat-Resistant |
| Standards | ISO 15552 / ISO 6431 / VDMA 24562 |
| Operating Medium | Compressed air, lubricated or non-lubricated |
| Position Sensing | Supported via proximity sensors |
| Mounting | Threaded fasteners with accessory mounting |
Model Number Naming Convention
The CRDNG series model naming format is: CRDNG[S]-[Piston Diameter]-[Stroke]-PPV-A-[Variant Suffix]
- CRDNG: Series designation — Stainless Steel Standard Cylinder (ISO 15552)
- CRDNGS: Double-ended piston rod series (trailing “S” denotes double-ended)
- Piston Diameter: 32 / 40 / 50 / 63 / 80 / 100 / 125 mm
- Stroke: Customizable according to requirements (mm)
- PPV: Adjustable pneumatic cushioning at both ends
- S2: Double-ended piston rod variant / S6: Heat-resistant variant
Complete CRDNG Series Model List
The following table lists all 35 standard models in the FESTO CRDNG / CRDNGS series, covering 7 piston diameters with single/double-ended and standard/heat-resistant configurations:
| Order Code | Part Number | Series | Piston Diameter (mm) | Variant Type |
|---|---|---|---|---|
| CRDNG-32- -PPV-A | 160884 | CRDNG (Standard) | 32 | Standard |
| CRDNG-32- -PPV-A-S2 | 185282 | CRDNG (Standard) | 32 | Double-Ended Piston Rod |
| CRDNG-32- -PPV-A-S6 | 185293 | CRDNG (Standard) | 32 | Heat-Resistant |
| CRDNGS-32- -PPV-A | 160890 | CRDNGS (Double-Ended) | 32 | Standard |
| CRDNGS-32- -PPV-A-S6 | 185300 | CRDNGS (Double-Ended) | 32 | Heat-Resistant |
| CRDNG-40- -PPV-A | 160885 | CRDNG (Standard) | 40 | Standard |
| CRDNG-40- -PPV-A-S2 | 185283 | CRDNG (Standard) | 40 | Double-Ended Piston Rod |
| CRDNG-40- -PPV-A-S6 | 185294 | CRDNG (Standard) | 40 | Heat-Resistant |
| CRDNGS-40- -PPV-A | 160891 | CRDNGS (Double-Ended) | 40 | Standard |
| CRDNGS-40- -PPV-A-S6 | 185301 | CRDNGS (Double-Ended) | 40 | Heat-Resistant |
| CRDNG-50- -PPV-A | 160886 | CRDNG (Standard) | 50 | Standard |
| CRDNG-50- -PPV-A-S2 | 185284 | CRDNG (Standard) | 50 | Double-Ended Piston Rod |
| CRDNG-50- -PPV-A-S6 | 185295 | CRDNG (Standard) | 50 | Heat-Resistant |
| CRDNGS-50- -PPV-A | 160892 | CRDNGS (Double-Ended) | 50 | Standard |
| CRDNGS-50- -PPV-A-S6 | 185302 | CRDNGS (Double-Ended) | 50 | Heat-Resistant |
| CRDNG-63- -PPV-A | 160887 | CRDNG (Standard) | 63 | Standard |
| CRDNG-63- -PPV-A-S2 | 185285 | CRDNG (Standard) | 63 | Double-Ended Piston Rod |
| CRDNG-63- -PPV-A-S6 | 185296 | CRDNG (Standard) | 63 | Heat-Resistant |
| CRDNGS-63- -PPV-A | 160893 | CRDNGS (Double-Ended) | 63 | Standard |
| CRDNGS-63- -PPV-A-S6 | 185303 | CRDNGS (Double-Ended) | 63 | Heat-Resistant |
| CRDNG-80- -PPV-A | 160888 | CRDNG (Standard) | 80 | Standard |
| CRDNG-80- -PPV-A-S2 | 185286 | CRDNG (Standard) | 80 | Double-Ended Piston Rod |
| CRDNG-80- -PPV-A-S6 | 185297 | CRDNG (Standard) | 80 | Heat-Resistant |
| CRDNGS-80- -PPV-A | 160894 | CRDNGS (Double-Ended) | 80 | Standard |
| CRDNGS-80- -PPV-A-S6 | 185304 | CRDNGS (Double-Ended) | 80 | Heat-Resistant |
| CRDNG-100- -PPV-A | 160889 | CRDNG (Standard) | 100 | Standard |
| CRDNG-100- -PPV-A-S2 | 185287 | CRDNG (Standard) | 100 | Double-Ended Piston Rod |
| CRDNG-100- -PPV-A-S6 | 185298 | CRDNG (Standard) | 100 | Heat-Resistant |
| CRDNGS-100- -PPV-A | 160895 | CRDNGS (Double-Ended) | 100 | Standard |
| CRDNGS-100- -PPV-A-S6 | 185305 | CRDNGS (Double-Ended) | 100 | Heat-Resistant |
| CRDNG-125- -PPV-A | 185280 | CRDNG (Standard) | 125 | Standard |
| CRDNG-125- -PPV-A-S2 | 185288 | CRDNG (Standard) | 125 | Double-Ended Piston Rod |
| CRDNG-125- -PPV-A-S6 | 185299 | CRDNG (Standard) | 125 | Heat-Resistant |
| CRDNGS-125- -PPV-A | 185281 | CRDNGS (Double-Ended) | 125 | Standard |
| CRDNGS-125- -PPV-A-S6 | 185306 | CRDNGS (Double-Ended) | 125 | Heat-Resistant |
Application Industries
- Food Processing & Packaging: Stainless steel Clean Design construction meets food-grade hygiene standards for filling and packaging equipment
- Pharmaceuticals & Biotechnology: Corrosion resistance and smooth surface characteristics ideal for cleanroom and GMP production environments
- Chemical Industry: Reliable operation in chemically corrosive environments for valve actuation, agitator control, and more
- Marine Engineering & Shipbuilding: Excellent salt-spray corrosion resistance for deck equipment and hatch control applications
- Water Treatment Technology: Long-term reliable operation in humid and chemical agent environments
- High-Temperature Industrial Applications: S6 heat-resistant variant extends applicability to elevated temperature processes
Related Series
- CRHD Series: Stainless steel round cylinder with flexible end cap options and heat-resistant variants
- CRDSNU Series: ISO 15552 stainless steel round cylinder with FDA food-grade seals and self-adjusting cushioning
- DSNU Series: Standard round cylinder for general industrial environments
- DSNU-S Series: Short round cylinder with self-locking mechanism for safety applications
Frequently Asked Questions
Q: What is the difference between CRDNG and CRDNGS series?
A: CRDNG is the standard single-ended piston rod type, with the piston rod extending from one end only — suitable for most standard application scenarios. CRDNGS is the double-ended piston rod type, with rods extending from both ends — ideal for applications requiring simultaneous force or motion transfer in both directions, such as bidirectional clamping or linked mechanisms. The CRDNGS series is also available with heat-resistant S6 variants for elevated-temperature double-ended operation.
Q: How should I choose between CRDNG and CRDSNU series?
A: Both are ISO 15552-compliant stainless steel cylinders with different focus areas. CRDSNU features self-adjusting pneumatic end-position cushioning (PPS) technology with FDA-compliant seals and grease for direct food contact — making it the preferred choice for food and pharmaceutical industries. CRDNG uses traditional adjustable pneumatic cushioning (PPV) at both ends and offers double-ended piston rod options (S2/CRDNGS), catering more to applications requiring bidirectional operation or enhanced serviceability. Selection should be based on cushioning preferences and whether double-ended piston rods are needed.
Q: What temperature can the CRDNG S6 heat-resistant version withstand?
A: CRDNG S6 heat-resistant cylinders use heat-resistant seals and specialized grease, enabling reliable operation at temperatures above the standard version’s range (please consult the official technical manual for exact specifications). S6 variants are suitable for high-temperature industrial applications such as ovens, heat treatment equipment, and autoclaves. When selecting the S6 version, ensure that connected accessories and tubing also meet the elevated temperature requirements.
Q: How serviceable are CRDNG series cylinders?
A: The CRDNG series features a simplified serviceability design, allowing easy replacement of seals and wear parts without specialized tools. This extends the product life cycle and reduces maintenance costs. FESTO provides complete repair kits and seal replacement packages; users can perform routine maintenance according to the service manual for sustainable operations.
Request CRDNG Series Quote & Technical Support →
Technical Documentation: CRDNG Product Catalog & Technical Manual (PDF)
Disclaimer: Product images and some technical specifications on this page are sourced from the official Festo website. All trademarks are the property of their respective owners. Technical specifications are subject to change; please refer to the latest official Festo release.