contactor,cortacircuitos,inversor solar,medidor electrico,baterias solares
All-stainless-steel double-acting round cylinder, specially designed for food, farmacéutico, ambientes húmedos y corrosivos. Equipped with pneumatic cushioning adjustable at both ends (PPV), it meets the requirements of dynamic load and speed regulation.
- Model Segment Definition
| Segmento de modelo | Significado | Descripción detallada |
| CRDSNU | Stainless steel round cylinder | CR = corrosion-resistant; D = double-acting; S = round type; NU = standard type; full stainless steel structure (barrel / end caps / piston rod) |
| 40 | Bore size | 40 milímetros, determines thrust and tension rating |
| 50 | Stroke | 50 milímetros, maximum travel distance of the piston |
| PPV | Cushioning type | Pneumatic cushioning adjustable at both ends; cushioning intensity adjustable independently on each side |
| A | Piston rod end type | External thread (M12×1.25), standard mounting interface |
- Parámetros de especificación principales
| Categoría de parámetro | Datos técnicos | Observaciones |
| Basic Characteristics | ||
| Action type | Double-acting | Requires air supply on both sides to realize push and pull motion |
| Bore / Stroke | 40 milímetros / 50 milímetros | Standard size, suitable for medium and small loads |
| Piston rod specification | M12×1.25 external thread | Standard ISO thread for easy load connection |
| Port size | G1/8 | Air inlet / outlet port, compatible with standard pneumatic components |
| Parámetros de rendimiento | ||
| Operating pressure range | 0.1–1.0 MPa (1–10 bar) | Suitable for most pneumatic systems |
| Theoretical thrust @ 6 bar | 754 norte | Fórmula de cálculo: F=π×(D/2)2×p |
| Theoretical tension @ 6 bar | 633 norte | Calculated value after deducting piston rod area |
| Cushioning type | PPV (adjustable at both ends) | Cushioning stroke approx. 18 milímetros, adaptable to different speeds and loads |
| Rango de temperatura | −40 °C … +120 °C | Wide temperature design; S6 seal required for extreme high temperature |
| Material & Cumplimiento | ||
| Main material | High-alloy stainless steel (CRC3) | Corrosion resistance Class 3, excellent anti-corrosion performance |
| Material del sello | Standard NBR / optional FKM | FKM suitable for high temperature and chemical environments |
| Lubrication grade | NSF‑H1 food-grade grease | Direct food contact acceptable, compliant with FDA requirements |
| Clase de protección | IP65 | Dustproof and waterproof, adecuado para entornos hostiles |
| Montaje & Dimensiones | ||
| Método de montaje | Any mounting position | Compatible with various mounting accessories (flange / foot bracket / trunnion, etc.) |
| Position detection | Compatible with proximity sensors (SMT / SME series) | Magnetic switch optional for position feedback |
| Dimensiones generales | Diámetro 40 mm × Total length 180 milímetros | Estructura compacta, ahorra espacio de instalación |
| Peso | Aprox.. 1.2 kilos | Stainless steel construction, robust and durable |
- Recommended Accessories List
| Accessory Type | Modelo | Descripción de la función |
| Mounting Accessories | ||
| Front flange | FNC‑40 | Front fixed mounting, adecuado para espacios estrechos |
| Rear flange | FNCB‑40 | Rear fixed mounting for easy cylinder disassembly |
| Foot mounting bracket | HNC‑40 | Bottom support mounting with high stability |
| Trunnion mounting | HNZ‑40 | Swing mounting for angular operating conditions |
| Pneumatic Accessories | ||
| One-way flow control valve | VFOE‑3/8‑1/8 | G1/8 port, precise cylinder speed control |
| Push-in fitting | QS‑8‑1/8 | Fast tubing connection, fácil instalación |
| Silencer | U‑1/8 | Reduces exhaust noise and environmental noise pollution |
| Detection Accessories | ||
| Magnetic proximity switch | SME‑8‑NS‑24V‑KC | Position sensing, suitable for food-grade environments |
| Sensor mounting bracket | DMS‑40 | Fixes magnetic switch with flexible installation |
| Accesorios especiales | ||
| High-temperature seal kit | S6 | Adaptable to ambient temperature up to +120 °C |
| Extended piston rod | K8 | Extends effective stroke for special mounting requirements |
- Competidor & Comparación entre marcas
| Marca | Modelo | Matching Degree | Diferencia central |
| Festo | CRDSNU-40-50-PPS-A | 100% | PPS = self-adjusting cushioning; PPV = manually adjustable cushioning (this model) |
| Festo | DSNU-40-50-PPV-A | 90% | DSNU = carbon steel barrel; CRDSNU = full stainless steel with superior corrosion resistance |
| SMC | CD85N40-50-B | 85% | Stainless steel cylinder, double-acting, adjustable cushioning, R1/8 port |
| Airtac | SI40×50-P | 80% | Stainless steel cylinder, double-acting, elastic cushioning, rentable |
| Norgren | RM/8020/M/50 | 75% | Stainless steel cylinder, double-acting, self-adjusting cushioning, different mounting structure |
- Directrices de selección & Soluciones alternativas
5.1 Three Key Selection Factors
Cargar coincidencia: Thrust ≥ Load × 1.5 safety factor; 40 mm bore provides 754 N thrust @ 6 bar, suitable for load ≤ 500 norte.
Stroke confirmation: Reserve ≥10 mm cushioning space for 50 mm stroke to avoid rigid impact.
Adaptación ambiental:
Alimento / pharmaceutical industry: Must adopt CRDSNU (full stainless steel + NSF‑H1 lubrication).
Temperatura alta (>80°C): Equip with S6 high-temperature seal kit.
Chemical corrosion environment: Adopt FKM seals + CRC3 stainless steel.
5.2 Recommended Alternative Solutions
| Escenario de aplicación | Recommended Solution | Ventajas |
| Standard food-grade environment | CRDSNU-40-50-PPV-A | Full stainless steel + adjustable cushioning, suitable for dynamic loads |
| Static load working condition | CRDSNU-40-50-PPS-A | Self-adjusting cushioning, maintenance-free, menor costo |
| Ultra-high temperature (>120°C) | Custom high-temperature cylinder | Special seals and materials for extreme temperature conditions |
| Budget-limited project | Domestic stainless steel cylinder (p.ej. Airtac SI series) | Rendimiento de alto costo, meets basic functional requirements |
| Clean room environment | CRDSNU-40-50-PPV-A + A1 wiper ring | Enhanced chemical resistance, meets clean room standards |
5.3 Instalación & Pautas de mantenimiento
- Clean cylinder ports before installation to prevent impurities from entering and shortening seal service life.
- Cushioning adjustment: Start with minimum cushioning, then gradually increase to proper effect; avoid over-cushioning causing cylinder creeping.
- Pipe length ≤ 5 metro, inner diameter ≥ 6 mm to ensure stable air supply.
- Regular inspection every 6 meses: Check seal condition, piston rod surface and cushioning performance; replace parts in time if abnormal.
- Rinse with clean water after use in food processing environments to keep the cylinder clean.
CRDSNU-40-50-PPV-A is a full stainless steel round cylinder developed by Festo for harsh working environments. Its core advantages include CRC3 corrosion resistance, PPV adjustable cushioning and NSF‑H1 food-grade lubrication, perfectly applicable to food & bebida, farmacéutico, water treatment and other industries. With 40 mm bore, 50 mm stroke and adjustable cushioning at both ends, it flexibly adapts to various load and speed requirements, making it an ideal pneumatic actuator for harsh environments.
