المقاولين,قاطع الدائرة,الاستشعار,التشفير,بلك,محول
رقم الطلب: 552788
مسلسل: Compact cylinder, ADN series, ايزو 21287 متوافق
حجم التجويف: 20 مم
سكتة دماغية: 25 مم
توسيد: Adjustable pneumatic cushioning at both ends
Piston rod thread: Internal thread
Piston magnet: مع حلقة مغناطيسية (compatible with magnetic proximity switches)
خيارات التركيب: Multiple accessories available; أمام, rear, foot and flange mounting
Working medium: الهواء المضغوط, filtered (lubricated or non-lubricated)
ضغط التشغيل: 0.6 … 10 حاجِز
درجة الحرارة المحيطة: -20 … +80 درجه مئوية
حجم المنفذ: G1/8
📌 Model Code Breakdown
ADN: Compact cylinder series
20: تتحمل 20 مم
25: سكتة دماغية 25 مم
أنا: Internal thread on piston rod
ص: Pneumatic cushioning
أ: Integrated magnetic ring
📎 Common Compatible Accessories
Magnetic proximity switch: SME-8 series (SME-8-K-LED-24)
Mounting accessories: Foot bracket HBN, flange FBN, trunnion SNCU
Piston rod couplings: I-type coupling, Y-type coupling
🔁 الاستبدال & Substitution Information
Same-series replacement: Use ADN with identical specification and order number. Old model ADVU is legacy compact cylinder with different construction; mounting dimensions are not directly interchangeable.
البديل المحلي: Select domestic compact thin cylinder, verify mounting hole pitch, تتحمل, سكتة دماغية, rod thread and air port position.
📋 Typical Applications
التجميع الآلي, خطوط الناقل, tooling fixtures, sorting stations, short-stroke pushing and clamping for 3C equipment.
Troubleshooting Guide for حزب ADN-20-25-I-P-A (552788)
Precaution: Cut off air supply, release pressure and lock the air supply switch before maintenance to prevent unintended movement. This model is designed for lifetime lubrication; additional oiling is not required. Dry filtered non-lubricated compressed air is recommended.
Troubleshooting sequence: Air supply → Solenoid valve & tubing → Flow control → Mechanical alignment → Cylinder body → Magnetic switch
- Cylinder does not move at all
Air supply: Low pressure (recommended 0.4~0.6 MPa), مرشح مسدود, condensed water in FRL unit, shut-off main valve. Measure pressure at cylinder port and compare with main gauge.
دائرة التحكم: No output from solenoid valve, burnt coil. Test valve via manual override; check for missing PLC signals.
Blocked air circuit: G1/8 port, throttle fully closed, crushed tubing. Disconnect tube and check exhaust flow.
الاستيلاء الميكانيكي: Jammed load, misaligned guide, binding piston rod. Disconnect load and test cylinder independently with air supply.
Cylinder internal fault: Stuck piston seal, foreign debris inside barrel. Manually push rod; obvious resistance or immobility indicates jam.
- Erratic movement, judder, عصا زلة
Incorrect throttling: Meter-in throttling easily causes chattering. Meter-out throttling is preferred. Mount one-way flow regulators on exhaust ports and adjust gradually.
Tubing issues: Undersized tubing, long piping leading to large pressure drop. Shorten hoses or increase tube diameter.
Misalignment: Load guide not coaxial with piston rod. Use floating joint to eliminate rigid binding.
Contaminated piston rod: Dust or metal shavings scratch wiper seal. Clean rod; install protective boot for dusty environments.
Unstable supply pressure: Install upstream air reservoir for pressure stabilization.
- Insufficient thrust, fails to reach end position
Low supply pressure or large transient pressure drop; add upstream air tank.
Premature hard stop from external limit: Adjust stopper. Avoid piston hard impact against external mechanical stops.
Internal leakage: Worn piston seal causing cross-port leakage. أعراض: Rod slowly retracts under holding pressure, obvious loss of force.
Over-tight cushion screw: Cushion screw screwed too deep restricts exhaust; fine-adjust cushion screw.
- Air leakage (خارجي / داخلي)
Fitting leakage: Uneven tube cut, incomplete insertion, poor thread sealing. Test with soapy water.
Front end external leakage: Worn wiper / rod seal, scratches on piston rod.
End cap leakage: Aged O-rings on front/rear end caps.
Internal leakage diagnosis: Pressurize one chamber; continuous exhaust from the opposite chamber confirms damaged piston seal. If cylinder barrel is scored, repair is not feasible; replace cylinder directly.
ملحوظة: ADN compact barrels are thin-walled. Once scratched, seal replacement will quickly leak again.
- Magnetic switch false triggering, no detection or signal loss (magnetic version)
Mismatched switch: SME-8 series is required for ADN magnetic rings.
موقف التركيب: Switch outside travel range or loose mounting.
Magnetic interference: Nearby iron blocks, strong magnets or metal brackets. Increase clearance.
الإفراط في درجة الحرارة: Operating range -20~+80℃; out-of-range temperature causes unstable switch behaviour.
Damaged magnetic ring: Cracked or demagnetised piston magnet (rare, usually after heavy impact).
Wiring fault: Low 24V supply, broken wire or short circuit.
- Heavy impact, rebound, loud end-of-stroke noise
Improper cushion setting: Excess cushion opening → impact; cushion fully closed → rebound. Adjust both cushion screws slowly for smooth stopping.
Excessive meter-out flow, high speed. Reduce flow regulator setting first, then fine-tune cushion.
High load inertia exceeding built-in cushion capacity. Add external hydraulic shock absorber.
- Preventive Maintenance Checklist
- Air quality: Condensate, oil sludge and dust (ADN is sensitive to contaminants).
- Piston rod condition: Scratches, rust and dust accumulation.
- Coaxial alignment: Recheck alignment after every fixture change.
- Magnetic switch mounting and wiring tightness.
- Cushion setting: Vibration may loosen cushion screws over time.
- Repair Decision Guidance
Only O-rings and rod seal worn, barrel undamaged: Festo original repair kit can be used for seal replacement.
Scratched piston rod, scored barrel or deformation: Replace cylinder 552788 directly, repair is not recommended.
Do not add lubricating oil arbitrarily; excess oil attracts dust and accelerates seal wear.
Quick Diagnostic Tip
Disconnect load and supply air directly to cylinder:
✅ Smooth operation under no load → Fault source: Misalignment, load or external limit
❌ Still weak, juddering or leaking under no load → Fault source: Cylinder seal, barrel or cushion assembly
Festo ADN is a modular configurable cylinder. Available bores: 12/16/20/25/32/40/50/63/80/100/125 مم; stroke range 5 mm～500 mm. Options include A (خيط خارجي) / أنا (خيط داخلي), P/PPS cushion, magnetic ring A, Q anti-rotation, S2 double rod, EL end lock, KP clamping, S1 reinforced rod, S6 high temperature, S11 low friction, R3 corrosion resistance, إلخ. Tens of thousands of combinations exist; a complete master list is not available. Below: coding rule + frequently used base models (A-P-A / I-P-A, including your 552788) + order number table + suffix definition.
- ADN Model Coding (Metric, ISO21287)
ADN-Bore-Stroke-Rod Thread-Cushion-Magnet-[خيارات]
ADN: Double-acting compact cylinder
أ: Piston rod external thread; أنا: Piston rod internal thread
ص: Standard adjustable pneumatic cushion; بس: Self-adjusting pneumatic cushion
أ: Integrated magnetic ring for SME-8 switches
س: Square anti-rotation rod; S2: Double-ended piston rod; S20: Hollow double rod
هو: End position lock; KP: Clamping unit; S1: Reinforced piston rod
S6: High-temperature seal up to 120℃; S11: Low friction; R3: Heavy corrosion resistance; تي تي: Low-temperature seal (-40درجه مئوية)
- Standard Base Model: ADN-xx-xx-A-P-A (External Thread, Magnet, Adjustable Cushion)
| تتحمل | سكتة دماغية | نموذج | رقم الطلب. |
| 12 | 5 | ADN-12-5-A-P-A | 536200 |
| 12 | 10 | ADN-12-10-A-P-A | 536204 |
| 12 | 15 | ADN-12-15-A-P-A | 536206 |
| 12 | 20 | ADN-12-20-A-P-A | 536208 |
| 12 | 25 | ADN-12-25-A-P-A | 536210 |
| 16 | 5 | ADN-16-5-A-P-A | 536220 |
| 16 | 10 | ADN-16-10-A-P-A | 536224 |
| 16 | 15 | ADN-16-15-A-P-A | 536226 |
| 16 | 20 | ADN-16-20-A-P-A | 536228 |
| 16 | 25 | ADN-16-25-A-P-A | 536230 |
| 20 | 5 | ADN-20-5-A-P-A | 536240 |
| 20 | 10 | ADN-20-10-A-P-A | 536244 |
| 20 | 15 | ADN-20-15-A-P-A | 536246 |
| 20 | 20 | ADN-20-20-A-P-A | 536248 |
| 20 | 25 | ADN-20-25-A-P-A | 536250 |
| 25 | 5 | ADN-25-5-A-P-A | 536260 |
| 25 | 10 | ADN-25-10-A-P-A | 536264 |
| 25 | 15 | ADN-25-15-A-P-A | 536266 |
| 25 | 20 | ADN-25-20-A-P-A | 536268 |
| 25 | 25 | ADN-25-25-A-P-A | 536270 |
| 32 | 5 | ADN-32-5-A-P-A | 536280 |
| 32 | 10 | ADN-32-10-A-P-A | 536284 |
| 32 | 15 | ADN-32-15-A-P-A | 536286 |
| 32 | 20 | ADN-32-20-A-P-A | 536288 |
| 32 | 25 | ADN-32-25-A-P-A | 536290 |
| 40 | 5 | ADN-40-5-A-P-A | 536300 |
| 40 | 10 | ADN-40-10-A-P-A | 536304 |
| 40 | 15 | ADN-40-15-A-P-A | 536306 |
| 40 | 20 | ADN-40-20-A-P-A | 536308 |
| 40 | 25 | ADN-40-25-A-P-A | 536310 |
| 50 | 10 | ADN-50-10-A-P-A | 536324 |
| 50 | 20 | ADN-50-20-A-P-A | 536328 |
| 50 | 25 | ADN-50-25-A-P-A | 536330 |
| 63 | 10 | ADN-63-10-A-P-A | 536344 |
| 63 | 20 | ADN-63-20-A-P-A | 536348 |
| 63 | 25 | ADN-63-25-A-P-A | 536350 |
- Standard Base Model: ADN-xx-xx-I-P-A (Internal Thread, same style as 552788)
| تتحمل | سكتة دماغية | نموذج | رقم الطلب. |
| 12 | 5 | ADN-12-5-I-P-A | 536201 |
| 12 | 10 | ADN-12-10-I-P-A | 536212 |
| 12 | 15 | ADN-12-15-I-P-A | 536213 |
| 12 | 20 | ADN-12-20-I-P-A | 536214 |
| 12 | 25 | ADN-12-25-I-P-A | 536215 |
| 16 | 5 | ADN-16-5-I-P-A | 536221 |
| 16 | 10 | ADN-16-10-I-P-A | 536232 |
| 16 | 15 | ADN-16-15-I-P-A | 536233 |
| 16 | 20 | ADN-16-20-I-P-A | 536234 |
| 16 | 25 | ADN-16-25-I-P-A | 536235 |
| 20 | 5 | ADN-20-5-I-P-A | 536241 |
| 20 | 10 | ADN-20-10-I-P-A | 536252 |
| 20 | 15 | ADN-20-15-I-P-A | 536253 |
| 20 | 20 | ADN-20-20-I-P-A | 536254 |
| 20 | 25 | ADN-20-25-I-P-A | 552788 |
| 25 | 5 | ADN-25-5-I-P-A | 536261 |
| 25 | 10 | ADN-25-10-I-P-A | 536272 |
| 25 | 15 | ADN-25-15-I-P-A | 536273 |
| 25 | 20 | ADN-25-20-I-P-A | 536274 |
| 25 | 25 | ADN-25-25-I-P-A | 536275 |
| 32 | 5 | ADN-32-5-I-P-A | 536281 |
| 32 | 10 | ADN-32-10-I-P-A | 536292 |
| 32 | 15 | ADN-32-15-I-P-A | 536293 |
| 32 | 20 | ADN-32-20-I-P-A | 536294 |
| 32 | 25 | ADN-32-25-I-P-A | 536295 |
| 40 | 5 | ADN-40-5-I-P-A | 536301 |
| 40 | 10 | ADN-40-10-I-P-A | 536312 |
| 40 | 15 | ADN-40-15-I-P-A | 536313 |
| 40 | 20 | ADN-40-20-I-P-A | 536314 |
| 40 | 25 | ADN-40-25-I-P-A | 536315 |
| 50 | 10 | ADN-50-10-I-P-A | 536332 |
| 50 | 20 | ADN-50-20-I-P-A | 536334 |
| 50 | 25 | ADN-50-25-I-P-A | 536335 |
| 63 | 10 | ADN-63-10-I-P-A | 536352 |
| 63 | 20 | ADN-63-20-I-P-A | 536354 |
| 63 | 25 | ADN-63-25-I-P-A | 536355 |
- Common Suffix Definitions for Special Versions
س: Square anti-rotation rod (مثال: ADN-20-25-Q-P-A)
S2: Double-ended piston rod
S20: Hollow double rod
هو: End position locking cylinder
KP: Integrated clamping unit
بس: Self-adjusting pneumatic cushion, replaces standard P cushion
S11: Low-friction version for low-force applications
S6: High-temperature seal, up to 120℃
R3: Heavy-duty corrosion-resistant coating for washdown/humid environments
تي تي: Low-temperature seal, down to -40℃
- ملاحظات إضافية
- Longer stroke variants (30/40/50/80/100…500 mm), bores 80/100/125, inch variants, and special options such as Q/S2/EL/KP are numerous. This table covers frequently used short-stroke base models.
- AEN is single-acting variant (not part of ADN series). ADNGF is guided compact cylinder, different product line.
- Legacy compact cylinder ADVU has different mounting geometry and cannot be swapped directly.
