Festo CRHD Stainless Steel Round Cylinder – Corrosion-Resistant Pneumatic Actuator Series
2026-06-14
The Festo CRHD Series Stainless Steel Round Cylinder is a high-performance pneumatic actuator specifically designed for harsh and corrosive environments. Constructed entirely from stainless steel, it features excellent corrosion resistance and an easy-to-clean design, making it ideal for industries with stringent hygiene and corrosion-resistance requirements such as food processing, pharmaceuticals, chemicals, and marine engineering. The CRHD series offers multiple end cap configurations and piston rod connection options, with an optional heat-resistant version (S6) to meet flexible installation needs across diverse operating conditions.
Key Features & Highlights
- Fully Stainless Steel Construction: Cylinder barrel, end caps, and piston rod are all manufactured from stainless steel, providing outstanding resistance to corrosive environmental conditions
- Easy-to-Clean Design: Smooth surfaces with no dead spaces, meeting hygienic requirements of food and pharmaceutical industries
- Flexible End Cap Options: Various rear end cap configurations available for flexible adaptation to installation spaces and connection methods
- Multiple Piston Rod Connections: Available in standard (MQ), with clevis (MC), and with swivel (MS) configurations
- Heat-Resistant Version Available: S6 variants withstand elevated temperature environments, expanding the application range
- Position Sensing: Compatible with proximity sensors for precise piston position detection and control
- External Thread Piston Rod: Standardized external thread interface for easy connection and system integration
Technical Specifications
| Parameter | Specification |
|---|---|
| Series | CRHD |
| Type | Stainless Steel Round Cylinder (Piston Rod Cylinder) |
| Piston Diameter Range | 32 / 40 / 50 / 63 / 80 / 100 mm |
| Cushioning | PPV – Adjustable pneumatic cushioning at both ends |
| Material | Stainless Steel (barrel, end caps, piston rod) |
| Connection Types | MQ Standard / MC with Clevis / MS with Swivel |
| Temperature Versions | Standard / S6 Heat-Resistant |
| Operating Medium | Compressed air, lubricated or non-lubricated |
| Position Sensing | Supported via proximity sensors |
| Certification | Compliant with ISO 15552 relevant standards |
Model Number Naming Convention
The CRHD series model naming format is: CRHD-[Piston Diameter]-[Stroke]-PPV-A-[Connection]-[Temperature Version]
- CRHD: Series designation — Stainless Steel Round Cylinder
- Piston Diameter: 32 / 40 / 50 / 63 / 80 / 100 mm
- Stroke: Customizable according to requirements (mm)
- PPV: Adjustable pneumatic cushioning at both ends
- Connection: MQ (Standard) / MC (with Clevis) / MS (with Swivel)
- S6: Heat-resistant version designation
Complete CRHD Series Model List
The following table lists all 36 standard models in the FESTO CRHD series, covering 6 piston diameters, 3 connection types, and both standard and heat-resistant temperature versions:
| Order Code | Part Number | Piston Diameter (mm) | Temperature Version | Connection Type |
|---|---|---|---|---|
| CRHD-32- -PPV-A-MC | 195513 | 32 | Standard | |
| CRHD-32- -PPV-A-MC-S6 | 195549 | 32 | Heat-Resistant | |
| CRHD-32- -PPV-A-MQ | 195507 | 32 | Standard | |
| CRHD-32- -PPV-A-MQ-S6 | 195543 | 32 | Heat-Resistant | |
| CRHD-32- -PPV-A-MS | 195519 | 32 | Standard | |
| CRHD-32- -PPV-A-MS-S6 | 195555 | 32 | Heat-Resistant | |
| CRHD-40- -PPV-A-MC | 195514 | 40 | Standard | |
| CRHD-40- -PPV-A-MC-S6 | 195550 | 40 | Heat-Resistant | |
| CRHD-40- -PPV-A-MQ | 195508 | 40 | Standard | |
| CRHD-40- -PPV-A-MQ-S6 | 195544 | 40 | Heat-Resistant | |
| CRHD-40- -PPV-A-MS | 195520 | 40 | Standard | |
| CRHD-40- -PPV-A-MS-S6 | 195556 | 40 | Heat-Resistant | |
| CRHD-50- -PPV-A-MC | 195515 | 50 | Standard | |
| CRHD-50- -PPV-A-MC-S6 | 195551 | 50 | Heat-Resistant | |
| CRHD-50- -PPV-A-MQ | 195509 | 50 | Standard | |
| CRHD-50- -PPV-A-MQ-S6 | 195545 | 50 | Heat-Resistant | |
| CRHD-50- -PPV-A-MS | 195521 | 50 | Standard | |
| CRHD-50- -PPV-A-MS-S6 | 195557 | 50 | Heat-Resistant | |
| CRHD-63- -PPV-A-MC | 195516 | 63 | Standard | |
| CRHD-63- -PPV-A-MC-S6 | 195552 | 63 | Heat-Resistant | |
| CRHD-63- -PPV-A-MQ | 195510 | 63 | Standard | |
| CRHD-63- -PPV-A-MQ-S6 | 195546 | 63 | Heat-Resistant | |
| CRHD-63- -PPV-A-MS | 195522 | 63 | Standard | |
| CRHD-63- -PPV-A-MS-S6 | 195558 | 63 | Heat-Resistant | |
| CRHD-80- -PPV-A-MC | 195517 | 80 | Standard | |
| CRHD-80- -PPV-A-MC-S6 | 195553 | 80 | Heat-Resistant | |
| CRHD-80- -PPV-A-MQ | 195511 | 80 | Standard | |
| CRHD-80- -PPV-A-MQ-S6 | 195547 | 80 | Heat-Resistant | |
| CRHD-80- -PPV-A-MS | 195523 | 80 | Standard | |
| CRHD-80- -PPV-A-MS-S6 | 195559 | 80 | Heat-Resistant | |
| CRHD-100- -PPV-A-MC | 195518 | 100 | Standard | |
| CRHD-100- -PPV-A-MC-S6 | 195554 | 100 | Heat-Resistant | |
| CRHD-100- -PPV-A-MQ | 195512 | 100 | Standard | |
| CRHD-100- -PPV-A-MQ-S6 | 195548 | 100 | Heat-Resistant | |
| CRHD-100- -PPV-A-MS | 195524 | 100 | Standard | |
| CRHD-100- -PPV-A-MS-S6 | 195560 | 100 | Heat-Resistant |
Application Industries
- Food Processing & Packaging: Stainless steel construction and easy-to-clean design meet food-grade hygiene standards, suitable for filling, sealing, and sorting equipment
- Pharmaceuticals & Biotechnology: Corrosion resistance and smooth surface characteristics ideal for cleanroom and GMP production environments
- Chemical Industry: Reliable operation in chemically corrosive environments, suitable for valve actuation, agitator control, and more
- Marine Engineering & Shipbuilding: Excellent salt-spray corrosion resistance for deck equipment, hatch control, and related applications
- Water Treatment Technology: Long-term reliable operation in humid and chemical agent environments
- Life Sciences: Suitable for laboratory automation equipment and medical devices
Related Series
- DSNU Series: Standard round cylinder for general industrial environments
- DSNU-S Series: Round cylinder with self-locking mechanism for safety-critical applications
- CRDSNU Series: Alternative corrosion-resistant round cylinder with chrome-plated piston rod
- ESNU Series: Electric round cylinder for precision motion control
Frequently Asked Questions
Q: What is the main difference between the CRHD and DSNU series?
A: The CRHD series is constructed entirely from stainless steel and is specifically designed for corrosive environments, whereas the DSNU series is a standard round cylinder for general industrial use. The CRHD offers significantly superior corrosion resistance and hygienic design compared to DSNU, though at a higher cost. If your application involves corrosive media or requires compliance with hygiene standards, CRHD should be your preferred choice.
Q: What temperature can the CRHD S6 heat-resistant version withstand?
A: The S6 heat-resistant CRHD cylinders operate reliably at temperatures above the standard version’s range, withstanding ambient temperatures up to approximately 150°C (please consult the official technical manual for precise temperature ranges). S6 variants utilize heat-resistant seals and lubricants to ensure consistent sealing performance and service life under elevated temperature conditions.
Q: How should I choose between CRHD connection types (MQ/MC/MS)?
A: MQ Standard is suitable for most standard mounting scenarios with the simplest connection. MC with Clevis is ideal for applications requiring angular compensation or quick disassembly. MS with Swivel allows the piston rod to freely pivot in multiple directions, suitable for compensating installation misalignment or complex connection scenarios involving angular motion. Selection should consider available mounting space, motion trajectory, and connection rigidity requirements.
Q: Can CRHD cylinders be used underwater?
A: While the stainless steel material of the CRHD series provides good water corrosion resistance, standard CRHD cylinders are not recommended for complete submersion in water. For applications involving underwater use or direct washdown, we recommend consulting a FESTO technical engineer to select configurations with special protection ratings (e.g., IP65/IP67/IP69K) or to install protective covers.
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Technical Documentation: CRHD 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.