المقاولين,قاطع الدائرة,العاكس للطاقة الشمسية,عداد كهرباء,البطاريات الشمسية
All-stainless-steel double-acting round cylinder, specially designed for food, الصيدلانية, البيئات الرطبة والتآكل. Equipped with pneumatic cushioning adjustable at both ends (PPV), it meets the requirements of dynamic load and speed regulation.
- Model Segment Definition
| الجزء النموذجي | معنى | وصف تفصيلي |
| 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 مم, determines thrust and tension rating |
| 50 | سكتة دماغية | 50 مم, maximum travel distance of the piston |
| PPV | Cushioning type | Pneumatic cushioning adjustable at both ends; cushioning intensity adjustable independently on each side |
| أ | Piston rod end type | خيط خارجي (M12×1.25), standard mounting interface |
- معلمات المواصفات الأساسية
| فئة المعلمة | Technical Data | ملاحظات |
| Basic Characteristics | ||
| Action type | مزدوج المفعول | Requires air supply on both sides to realize push and pull motion |
| Bore / سكتة دماغية | 40 مم / 50 مم | الحجم القياسي, 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 |
| معلمات الأداء | ||
| Operating pressure range | 0.1–1.0 MPa (1–10 bar) | Suitable for most pneumatic systems |
| Theoretical thrust @ 6 حاجِز | 754 ن | Calculation formula: F=π×(D/2)2×p |
| Theoretical tension @ 6 حاجِز | 633 ن | Calculated value after deducting piston rod area |
| Cushioning type | PPV (adjustable at both ends) | Cushioning stroke approx. 18 مم, adaptable to different speeds and loads |
| Temperature range | −40 °C … +120 درجة مئوية | Wide temperature design; S6 seal required for extreme high temperature |
| مادة & امتثال | ||
| Main material | High-alloy stainless steel (CRC3) | Corrosion resistance Class 3, excellent anti-corrosion performance |
| Seal material | 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 |
| فئة الحماية | IP65 | Dustproof and waterproof, مناسبة للبيئات القاسية |
| تصاعد & أبعاد | ||
| طريقة التركيب | Any mounting position | Compatible with various mounting accessories (flange / foot bracket / trunnion, إلخ.) |
| Position detection | Compatible with proximity sensors (SMT / SME series) | Magnetic switch optional for position feedback |
| Overall dimensions | Diameter 40 mm × Total length 180 مم | هيكل مدمج, saves installation space |
| وزن | تقريبا. 1.2 كجم | Stainless steel construction, robust and durable |
- Recommended Accessories List
| Accessory Type | نموذج | وصف الوظيفة |
| Mounting Accessories | ||
| Front flange | FNC‑40 | Front fixed mounting, مناسبة للمساحات الضيقة |
| 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, تركيب سهل |
| 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 |
| Special Accessories | ||
| High-temperature seal kit | S6 | Adaptable to ambient temperature up to +120 درجة مئوية |
| Extended piston rod | K8 | Extends effective stroke for special mounting requirements |
- Competitor & Cross-Brand Comparison
| ماركة | نموذج | درجة المطابقة | الفرق الأساسي |
| Festo | CRDSNU-40-50-PPS-A | 100% | PPS = self-adjusting cushioning; PPV = manually adjustable cushioning (هذا النموذج) |
| 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, فعالة من حيث التكلفة |
| Norgren | RM/8020/M/50 | 75% | Stainless steel cylinder, double-acting, self-adjusting cushioning, different mounting structure |
- إرشادات الاختيار & الحلول البديلة
5.1 Three Key Selection Factors
مطابقة التحميل: Thrust ≥ Load × 1.5 safety factor; 40 mm bore provides 754 N thrust @ 6 حاجِز, suitable for load ≤ 500 ن.
Stroke confirmation: Reserve ≥10 mm cushioning space for 50 mm stroke to avoid rigid impact.
التكيف البيئي:
Food / pharmaceutical industry: Must adopt CRDSNU (full stainless steel + NSF‑H1 lubrication).
ارتفاع درجة الحرارة (>80درجة مئوية): Equip with S6 high-temperature seal kit.
Chemical corrosion environment: Adopt FKM seals + CRC3 stainless steel.
5.2 Recommended Alternative Solutions
| سيناريو التطبيق | Recommended Solution | المزايا |
| 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, تكلفة أقل |
| Ultra-high temperature (>120درجة مئوية) | Custom high-temperature cylinder | Special seals and materials for extreme temperature conditions |
| Budget-limited project | Domestic stainless steel cylinder (على سبيل المثال. Airtac SI series) | أداء عالي التكلفة, meets basic functional requirements |
| Clean room environment | CRDSNU-40-50-PPV-A + A1 wiper ring | Enhanced chemical resistance, meets clean room standards |
5.3 تثبيت & Maintenance Guidelines
- 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 م, inner diameter ≥ 6 mm to ensure stable air supply.
- Regular inspection every 6 شهور: 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 & beverage, الصيدلانية, water treatment and other industries. With 40 مم تتحمل, 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.
