SHAKO SD90822DJSN Solenoid Coil

Marca: SHAKO (Taiwan, Cina)

Valutazione: DC24V, 4.8W (2.5W low-power version optional)

Connessione: DIN connector (DIN43650 standard plug)

Classe di isolamento: Classe H, temperature resistance up to 200°C, encapsulated with high-temperature-resistant PPS/PA engineering plastic housing

Valvole compatibili: PU520, PU320, PU322, BM520, BM320, CY520, CY525, PS520, SPU520, PU220AR-01/02 serie elettrovalvole

📌 Same Series Comparison

SD90822DJSN: DC24V, DA, 4.8W

SA20822DFSN: AC220V, DA, 6VA (AC version with identical outline)

📦 HS Code Reference

Codice SA: 853650990000 (Solenoid coil for electrical switches)

⚠️ Replacement & Note

1. Interchangeable only with DIN-type coils of identical mounting dimensions; DC coils cannot directly replace AC coils
2. Alternative selection: Domestic DIN coils with identical specifications (24VCC, 4.8W, matching mounting hole spacing)
3. Fault features of burnt coils: Valve fails to shift, no magnetic attraction when powered on; judge condition by measuring DC resistance

Application Cases for SHAKO SD Series Coils (Including SD90822DJSN)

SD90822DJSN: DC24V, DIN43650 plug, compatible with pilot-operated solenoid valves such as PU520/BM520/PU320. Rated for 100% servizio continuo, Class H high-temperature resistance. It is one of the most widely used coils in non-standard automation, packaging and production line retrofits.

Caso 1: Macchine per l'imballaggio (Horizontal Flow Wrappers, Vertical Form-Fill-Seal Machines)

Matching valve body: PU520-02S, BM520-02S with SD90822DJSN (DC24V)

Funzione: Control reciprocating motion of pusher cylinders, cutter cylinders, bag-clamping cylinders and material stop cylinders; driven by PLC 24VDC output, valve shifts when energized and resets by spring when de-energized

Working conditions: Ciclismo ad alta frequenza, long continuous energization, plastic dust and small amount of lube oil mist in workshop; Class H insulation resists high temperature to prevent overheating burnout; DIN plug allows quick replacement without removing the whole valve during maintenance

Problem solving: Frequent overheating and burnout of generic coils on original equipment was greatly reduced after switching to SHAKO SD series; only spare coils are required while valve bodies can be reused

Caso 2: 3C Electronic Non-Standard Automation (PCB Testing Equipment, Assembly Machines, Screw Tightening Machines)

Matching valve body: PU320, CY520 series

Funzione: Pneumatic gripper opening/closing, locating pin lifting, carrier clamping, material stop for depaneling; double-solenoid BM520D also uses the same coil and retains position after power loss

Working conditions: Clean workshop, frequent momentary actuation plus long pressure holding, wide voltage fluctuation; DC24V version directly matches PLC I/O without extra transformers

Maintenance practice: Mass installation on valve manifolds by machine builders with unified DIN sockets; faults can be fixed by coil replacement to minimize downtime

Caso 3: Automotive Component Fixtures & Welding Tooling

Matching valve body: PU520, BM530

Funzione: Cylinders clamp workpieces, locating pins insert, welding torches retract; single-solenoid type fulfills safety logic of automatic release on power failure

Working conditions: Welding spatter, thermal radiation and heavy oil contamination; PPS high-temperature housing outperforms ordinary nylon coils; DIN plugs are sometimes fitted with protective dust boots

Promemoria: For heavy welding interference sites, it is recommended to connect freewheeling diodes across coil terminals to protect PLC output points

Caso 4: Trattamento delle acque & RO Reverse Osmosis Equipment (PU225/SPU225 Process Valves)

Matching valve body: Brass PU225, SUS316 SPU225 2/2-way process solenoid valves (aria & water compatible)

Funzione: On-off control of raw water inlet, concentrated water discharge and chemical dosing pipelines

Working conditions: Humid environment with high moisture; IP65 valve assembly plus sealed DIN plug; DC24V coils (SD series) have lower electric leakage risk compared with AC220V coils

Distinzione: Coil outline for PU225 process valves differs from PU520 pneumatic valves and they cannot be mixed for ordering

Caso 5: Tessile & Dyeing Machinery

Matching valve body: PU520, PS520

Funzione: Cylinders for fabric guiding roller, press roller and fabric stop for thread break protection; long standby energization for 24-hour continuous operation

Working conditions: Hot humid environment and cotton fiber dust; high insulation and stable heat dissipation suit non-stop production lines. Many old machines are retrofitted with domestic DIN coils, or domestic valves are upgraded with SHAKO SD coils for improved reliability

Caso 6: Trasporto di materiale, Sorting Lines & Lifting Transfer Mechanisms

Matching valve body: BM520 mounted on valve manifolds

Funzione: Stop cylinders, cilindri di sollevamento, diverting push cylinders; large quantity of identical SD coils for unified spare parts management

Vantaggio: Compact manifold layout, standardized DIN wiring; maintenance personnel manage fewer coil models

Caso 7: Iniezione & Extrusion Auxiliary Equipment (Material Loaders, Pelletizers, Vacuum Loaders)

Matching valve body: PU520, PU220AR

Funzione: Air circuit switching for vacuum feeding, material gate cylinder actuation and blow cleaning

Working conditions: Elevated ambient temperature, dust and volatile plastic oil mist in auxiliary machine rooms; Class H temperature resistance addresses this condition, which is the key advantage over ordinary Class F coils

Selezione & On-Site Fault Summary (SD90822DJSN)

1. Compatible only with valve bodies with DIN43650 sockets, not directly interchangeable with flying-lead coils; DC coils must not replace AC SA20822DFSN
2. Suitable applications: PLC 24VDC control, long continuous energization, high ambient temperature pneumatic directional valves
3. Common failure causes: Short circuit from water ingress at plug, damaged I/O without freewheeling diode in welding circuits, burnt coils caused by oil and water entering pilot passages from air supply

SHAKO Solenoid Valve Model List & Matching Coil List

Note: S = Single Solenoid, D = Double Solenoid; SD/SA DIN coils (including SD90822DJSN) for pneumatic 5/2 E 3/2 valvole; 13-30 series coils for 2/2 process valves (acqua, aria, olio)

1. Pneumatic Directional Solenoid Valves (Compressed Air Service)

1) PU520 5/2, 5/3 5-port 2-position / 5-port 3-position (Più comune, matched with SD90822DJSN)

PU520-02-S, PU520-02-D

PU520-03-S, PU520-03-D

PU520-04-S, PU520-04-D

PU530-02-D, PU530-03-D, PU530-04-D (5/3: center closed / center exhaust / center pressure)

2) BM520 5/2, 5/3 5-port 2-position (22larghezza mm, manifold style, same coil)

BM520-02-S, BM520-02-D

BM520-03-S, BM520-03-D

BM520-04-S, BM520-04-D

BM530-02-D, BM530-03-D, BM530-04-D

3) CY520 / CY525 5/2 High-Flow 5-port 2-position

CY520-02-S, CY520-02-D

CY520-03-S, CY520-03-D

CY525-02-S, CY525-02-D

4) PS520 / PS520F ISO Standard Valves

PS520-02-S/D, PS520-03-S/D, PS520-04-S/D

PS520F-02-S/D, PS520F-03-S/D

5) PU320 / PU322 3/2 3-port 2-position (Vuoto, scoppio, single-acting cylinder)

PU320-01-S, PU320-02-S

PU322-02-S, PU322-03-S, PU322-04-S

PU322N (Negative pressure vacuum version)

6) BM320 3/2 3-port 2-position

BM320-01-S, BM320-02-S

BM320N Vacuum version

7) PU521 (Compact 15mm narrow 5-port valve)

PU521-01-S, PU521-01-D

8) SONO / Serie SM (Old generation)

AM520, SM520, AM325

1. 2/2-Way Process Solenoid Valves (Acqua, Aria, Olio, Vapore; Ottone / Acciaio inossidabile)

PU220AR Direct Acting 2/2

PU220AR-01, PU220AR-02, PU220AR-03

PU225 Brass Pilot 2/2 (Aria & Water Compatible)

PU225-03, PU225-04, PU225-06, PU225-08

PU225S Steam dedicated version

SPU225 / SPU225A SUS316 Stainless Steel 2/2

SPU225-03, SPU225-04, SPU225-06, SPU225-08

SPU220A Flanged stainless steel valve

PU220D Drinking water dedicated valve

III. Coil List (Two Groups: P5 DIN Coils, E1 Process Valve Coils)

Group P5 (DIN43650 plug, compatible with PU520/BM520/CY520/PS520/PU322/BM320/PU220AR-01/02)【Key group including SD90822DJSN】

Class H insulation 200°C, 100% ED continuous duty, IP65

Explosion-proof same outline: SA20836GTCN (ATEX approved)

Group E1 Coils (For PU225, SPU225, PU220AR-03, AM325 process valves)

Flying-lead coils (Non-DIN, old style)

CN2211S9BSG / CN2211S9ASG / CN2211S9DSG (P5 lead-type coils)

1. Quick Matching Table (For Purchasing & Sostituzione)
2. PU520, BM520, CY520, PS520, PU322, BM320 → SD/SA (Group P5), SD90822DJSN
3. PU220AR-01/02 → SD/SA
4. PU220AR-03, PU225, SPU225, AM325 → 13-30xx (Group E1). SD90822DJSN NOT compatible!
5. DC SD coils cannot replace AC SA coils; E1 process coils are not interchangeable with P5 pneumatic coils
6. Suffix Definition for Ordering

S: Single Solenoid

D: Double Solenoid

01=1/8″, 02=1/4″, 03=3/8″, 04=1/2″

N: Negative pressure vacuum version

X/Y: 5/3 funzione (center closed / center exhaust / center pressure)

GUIDATO: Coil with indicator light (SD90822DJSN built-in LED)

Working Principle of SHAKO Solenoid Coils (SD/SA DIN type such as SD90822DJSN)

The coil itself is only an electromagnetic actuator. It does not directly switch the main air path. SHAKO PU520/BM520/CY520 are all internal pilot-operated pneumatic solenoid valves: the coil actuates a small pilot spool, and compressed air pressure differential shifts the main spool.

1. Internal Construction of SD90822DJSN DC24V Coil
2. Enameled copper winding (electromagnetic core)
3. Iron core sleeve, armatura, small return spring
4. PPS high-temperature molded housing (Class H insulation, 200°C)
5. DIN43650 socket integrated with LED indicator + diodo a ruota libera (standard for DC models)
6. Sealing O-ring, overall IP65 protection

AC version SA20822DFSN: No freewheeling diode; varistor is used for surge absorption. AC coils have a shading ring on the core face to eliminate chatter and buzzing at AC zero crossing.

1. Basic Electromagnetic Principle

Energize → Magnetic field is generated along the axis by copper winding → Magnetic force pulls the armature upward against spring force.

De-energize → Magnetic field disappears instantly → Return spring pushes the armature back.

The only function of the coil: open or close the pilot exhaust orifice. It does not directly drive the 5-port main spool.

III. Full Operation with SHAKO Pilot Valve (PU520/BM520)

1. Coil Energized: Magnetic force pulls armature → Pilot exhaust port opens, pilot chamber depressurizes. Pressure difference forms across main spool, compressed air pushes main spool to slide, air circuit shifts (P to A, B to R), cylinder extends or retracts.
2. Coil De-energized: Spring pushes armature back, pilot port seals, pilot chamber repressurizes. Main spool returns to home position by spring plus air pressure, circuit resets.

Single Solenoid (S): Only one coil; automatic spring reset when de-energized

Double Solenoid (D): One coil on each side; coil pulse only triggers shifting. After power loss the main spool is air-locked and holds position (latching function), no continuous coil power required

Distinzione importante: PU225/SPU225 process valves with E1 coils follow the same principle but drive a diaphragm pilot for liquid pipeline on/off.

1. Built-In Circuit of SD DC Coil (SD90822DJSN)
2. Indicatore LED: Parallel across coil terminals, lights up on power. Polarity sensitive: reverse connection turns off LED but the coil still pulls the armature.
3. Freewheeling Diode (Flyback Diode), reverse-parallel

DC coil is an inductive load and generates high reverse EMF when de-energized, which can destroy PLC transistor outputs. The diode provides a discharge path for back EMF to protect I/O modules.

⚠️ Do NOT reverse power polarity; reversed supply will short the diode and burn coil or PLC channel.

1. Differences of AC Coil SA20822DFSN AC220V

Il campo magnetico CA attraversa lo zero ogni mezzo ciclo, causing core vibration and noise. A shading coil (short-circuit ring) on the core face creates a phase-delayed magnetic component to maintain net attractive force and eliminate chatter. AC coils normally omit freewheeling diodes and use varistors for surge suppression; AC coils are non-polarized.

1. Selezione chiave & Fault Understanding Linked to Principle
2. Pilot valves require minimum working pressure (typically ≥0.15MPa). Even with a fully functional coil, insufficient air pressure fails to build differential pressure to shift the main spool.
3. Class H insulation rating allows 100% ED continuous energization without burnout (SD90822DJSN is designed for this operating condition).
4. Typical coil burnout: Insulation breakdown and winding short circuit. Sintomi: No LED, resistance near zero, PLC output trips.
5. Good coil but inactive valve: Usually not coil failure. Pilot orifice blocked by oil and debris prevents pilot air release and pressure differential formation.

VII. Supplementare: Principle of SHAKO E-Type Energy Saving Coil (Versione speciale)

High inrush current pulls the armature at turn-on. After attraction, an internal IC reduces holding current automatically, lowering power consumption and heat generation for long energization scenarios.