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Full Analysis of SMC SY Series 5-Port Pilot-Operated Elastic Seal Solenoid Valves (SY3000/5000/7000/9000) & SYJ Series 3-Port Solenoid Valves
- Model Code Definition (Example: SY5120-5LZD-01-Q)
| Model Segment | Description | Optional Code |
| SY | Series code: 5-port pilot-operated elastic seal solenoid valve; SYJ stands for 3-port series | SY=5-port, SYJ=3-port |
| 5 | Size code: SY3=10.5mm width, SY5=15mm width, SY7=21mm width, SY9=30mm width | 3/5/7/9 |
| 120 | Structure type: 1=2-position single solenoid, 2=2-position double solenoid, 3=3-position closed center, 4=3-position exhaust center, 5=3-position pressure center | 1/2/3/4/5 + digits |
| -5 | Mounting type: 5=Individual piping type, 6=Manifold mounting type | 5月6日 |
| L | Port size: L=M5, G=Rc1/8, U=Rc1/4, D=Rc3/8, E=Rc1/2 | L/G/U/D/E |
| Z | Special function: Z=With indicator light, D=Overvoltage protection, T=Power-saving circuit (DC24V/12V) | Z/D/T/None |
| D | Manual override: D=Screwdriver push-locking type, N=Non-locking push type, L=Lever type | D/N/L/None |
| -1 | Coil voltage: 01=AC100V, 02=AC200V, 03=AC110V, 04=AC220V, 05=DC24V | 1月6日 |
| -Q | Special certification: Q=CE certified, S=Dustproof & waterproof (IP67), F1=With built-in filter | Q/S/F1/None |
- Core Specifications (General for 5-Port Series)
| Parameter Category | SY3000 | SY5000 | SY7000 | SY9000 |
| Basic Info | 5-port pilot-operated elastic seal solenoid valve, Made in Japan, H-NBR sealing material | 5-port pilot-operated elastic seal solenoid valve, Made in Japan, H-NBR sealing material | 5-port pilot-operated elastic seal solenoid valve, Made in Japan, H-NBR sealing material | 5-port pilot-operated elastic seal solenoid valve, Made in Japan, H-NBR sealing material |
| Rated Operating Pressure | 0.15~0.7MPa | 0.1~0.7MPa | 0.2~0.7MPa | 0.2~0.7MPa |
| Ambient/Fluid Temperature | -10~50℃ (Non-freezing) | -10~50℃ (Non-freezing) | -10~50℃ (Non-freezing) | -10~50℃ (Non-freezing) |
| Response Time | On: ≤15ms, Off: ≤25ms | On: ≤15ms, Off: ≤25ms | On: ≤15ms, Off: ≤25ms | On: ≤15ms, Off: ≤25ms |
| Max Operating Frequency | 5Hz | 5Hz | 3Hz | 3Hz |
| Power Consumption | Standard: AC10VA, DC2.5W; Power-saving type: DC0.45W | Standard: AC10VA, DC2.5W; Power-saving type: DC0.45W | Standard: AC15VA, DC3.5W; Power-saving type: DC0.5W | Standard: AC20VA, DC4.5W; Power-saving type: DC0.6W |
| Ingress Protection | IP65 (Standard), IP67 (with S code) | IP65 (Standard), IP67 (with S code) | IP65 (Standard), IP67 (with S code) | IP65 (Standard), IP67 (with S code) |
| Flow Characteristics | C=1.1dm³/(s·bar), B=0.28dm³/(s·bar) | C=2.8dm³/(s·bar), B=0.90dm³/(s·bar) | C=4.5dm³/(s·bar), B=1.4dm³/(s·bar) | C=10dm³/(s·bar), B=2.5dm³/(s·bar) |
| Valve Width | 10.5mm | 15mm | 21mm | 30mm |
| Port Connection | M5 / Rc1/8 | M5 / Rc1/8 / Rc1/4 | Rc1/4 / Rc3/8 | Rc1/4 / Rc3/8 / Rc1/2 |
| Manual Override | Screwdriver push-locking / Non-locking push type | Screwdriver push-locking / Non-locking push / Lever type | Screwdriver push-locking / Non-locking push / Lever type | Screwdriver push-locking / Non-locking push / Lever type |
| Certifications | CE, UL, CSA, RoHS | CE, UL, CSA, RoHS | CE, UL, CSA, RoHS | CE, UL, CSA, RoHS |
- Standard Accessories List
- Solenoid valve main body (with coil)
- Mounting fixing screws
- Sealing gaskets (individual piping type)
- Coil protective cover (standard type)
- Manual override screwdriver (if required)
- Product manual (Hard copy + Electronic version)
- Certificate of conformity & warranty card
- Mounting bracket (manifold mounting type)
- Competitor & Cross-Brand Equivalent Chart
| Brand | Equivalent Series | Typical Model | Main Differences | Application Scope |
| SMC | SY Series | SY5120-5LZD-01 | 80% higher flow, low power consumption 0.45W, IP67 protection | Electronics assembly, semiconductor, precision machinery |
| FESTO | VUVG Series | VUVG-L14-M52-AT-M5-1P3 | Higher price, faster response ≤10ms, powerful diagnostic function | Automotive manufacturing, high-end automation |
| CKD | 4F Series | 4F510-15-M5 | Moderate price, compact size, long service life ≥50 million cycles | General machinery, packaging equipment |
| AIRTAC | 4V Series | 4V210-08 | Low cost, high cost performance, general performance | Low-end equipment, non-precision control |
| KOGANEI | 070 Series | 070-4E1-06 | Fast response, suitable for high-frequency operation, long lifespan | Printing machinery, food packaging |
- Selection Guidelines & Replacement Solutions
Selection Guidelines
- Flow Matching Principle
SY3000: For cylinder bore ≤40mm, small flow control
SY5000: For cylinder bore 40~63mm, medium flow control
SY7000: For cylinder bore 63~80mm, large flow control
SY9000: For cylinder bore ≥80mm, extra-large flow control
- Electrical Parameter Confirmation
Control voltage: DC24V recommended (strong anti-interference, low power consumption)
Protection grade: IP65 for indoor, IP67 for humid environment, EX series for explosion-proof occasions
Optional functions: Indicator light(Z), overvoltage protection(D), power-saving circuit(T) as required
- Mounting Method Selection
Single valve: Choose individual piping type (-5), flexible and convenient
Multi-valve centralized control: Choose manifold mounting type (-6), space-saving and easy maintenance
- Environmental Adaptation
Operating temperature: -10~50℃; select low/high temperature version beyond range
Medium: Compressed air, must be dry and clean (filter recommended)
Vibration resistance: ≤150m/s²; Shock resistance: ≤30m/s²
Replacement Solutions
- Same-Brand Replacement
Space limited: SY3000 replaces SY5000 (same function, 30% narrower width)
Higher flow demand: SY7000 replaces SY5000 (60% flow increase)
3-port requirement: SYJ Series replaces SY Series (simpler structure, lower cost)
- Function Expansion Solutions
Remote control: Equip with EX600 serial transmission system, support DeviceNet / CC-Link / PROFIBUS
Residual pressure release: Select 3-position valve with center check diaphragm, suitable for cabinet installation
Cleanroom environment: Choose clean series, comply with ISO 14644-1 Class 5
- Cost Optimization Solutions
General applications: Domestic replacement (e.g. AIRTAC 4V Series), cost reduced by over 50%
Bulk purchase: Adopt manifold mounting type to reduce piping cost and leakage risk
- Application Scenarios
- Electronics Manufacturing
Semiconductor wafer handling robot control
Pneumatic actuator control for SMT placement machines & insertion machines
Positioning control for PCB drilling & cutting machines
Precision control of pneumatic slides in cleanroom
- Automotive Manufacturing
Robot gripper control for welding production lines
Pneumatic valve and cylinder control in painting workshops
Material conveying, positioning and clamping systems in assembly lines
Pneumatic actuator control for testing equipment
- Packaging Machinery
Material conveying, sorting and coding control for food packaging machines
Pneumatic control under sterile conditions for pharmaceutical packaging equipment
Forming, box sealing and strapping control for carton packaging machines
Precision positioning control for label dispensing machines
- General Industrial Automation
Cylinder driving, positioning and clamping control for production lines
Pneumatic control components for hydraulic systems
Automatic tool change and fixture control for machine tools
Pneumatic actuator control for logistics conveying systems
- Special Applications
Pneumatic control for robot end-effector
Pneumatic systems of medical equipment (ventilator, anesthesia machine, etc.)
Tension control and feeding control for textile machinery
Clamping, positioning and feeding control for woodworking machinery
- SY Series Main Model List
7.1 SY3000 Series (10.5mm Width, Small Flow)
| Structure Type | Individual Piping Type | Manifold Mount Type | Features |
| 2-Position Single Solenoid | SY3120-5LZD-01 | SY3120-6LZD-01 | Suitable for small cylinders, space-limited installation |
| SY3120-5GZD-01 | SY3120-6GZD-01 | ||
| 2-Position Double Solenoid | SY3220-5LZD-01 | SY3220-6LZD-01 | Bidirectional operation, no spring reset required |
| SY3220-5GZD-01 | SY3220-6GZD-01 | ||
| 3-Position Closed Center | SY3320-5LZD-01 | SY3320-6LZD-01 | Position holding when power off, ideal for positioning control |
| SY3320-5GZD-01 | SY3320-6GZD-01 | ||
| 3-Position Exhaust Center | SY3420-5LZD-01 | SY3420-6LZD-01 | Air exhaust when power off, for safety protection |
| SY3420-5GZD-01 | SY3420-6GZD-01 |
7.2 SY5000 Series (15mm Width, Medium Flow)
| Structure Type | Individual Piping Type | Manifold Mount Type | Features |
| 2-Position Single Solenoid | SY5120-5LZD-01 | SY5120-6LZD-01 | General purpose, compatible with most cylinders |
| SY5120-5UZD-01 | SY5120-6UZD-01 | ||
| 2-Position Double Solenoid | SY5220-5LZD-01 | SY5220-6LZD-01 | Widely used, suitable for high-frequency operation |
| SY5220-5UZD-01 | SY5220-6UZD-01 | ||
| 3-Position Pressure Center | SY5520-5LZD-01 | SY5520-6LZD-01 | Pressure holding when power off, perfect for clamping systems |
| SY5520-5UZD-01 | SY5520-6UZD-01 | ||
| Dual 3-Port Type | SY5140-5LZD-01 | SY5140-6LZD-01 | Integrated two 3-port valves, save installation space |
| SY5140-5UZD-01 | SY5140-6UZD-01 |
7.3 SY7000 Series (21mm Width, Large Flow)
| Structure Type | Individual Piping Type | Manifold Mount Type | Features |
| 2-Position Single Solenoid | SY7120-5UZD-01 | SY7120-6UZD-01 | Large flow for large bore cylinders |
| SY7120-5DZD-01 | SY7120-6DZD-01 | ||
| 2-Position Double Solenoid | SY7220-5UZD-01 | SY7220-6UZD-01 | Large flow, high frequency & fast response |
| SY7220-5DZD-01 | SY7220-6DZD-01 | ||
| 3-Position Closed Center | SY7320-5UZD-01 | SY7320-6UZD-01 | Large flow positioning control for heavy loads |
| SY7320-5DZD-01 | SY7320-6DZD-01 | ||
| 3-Position Exhaust Center | SY7420-5UZD-01 | SY7420-6UZD-01 | Large flow safety protection for large equipment |
| SY7420-5DZD-01 | SY7420-6DZD-01 |
7.4 SY9000 Series (30mm Width, Extra-Large Flow)
| Structure Type | Individual Piping Type | Manifold Mount Type | Features |
| 2-Position Single Solenoid | SY9120-5UZD-01 | SY9120-6UZD-01 | Extra-large flow for super large cylinders |
| SY9120-5EZD-01 | SY9120-6EZD-01 | ||
| 2-Position Double Solenoid | SY9220-5UZD-01 | SY9220-6UZD-01 | Extra-large flow for heavy machinery |
| SY9220-5EZD-01 | SY9220-6EZD-01 | ||
| 3-Position Closed Center | SY9320-5UZD-01 | SY9320-6UZD-01 | Extra-large flow positioning for large hydraulic systems |
| SY9320-5EZD-01 | SY9320-6EZD-01 | ||
| 3-Position Pressure Center | SY9520-5UZD-01 | SY9520-6UZD-01 | Extra-large flow clamping for large tooling fixtures |
| SY9520-5EZD-01 | SY9520-6EZD-01 |
7.5 SYJ Series 3-Port Solenoid Valves (SYJ300/500/700)
| Series | Typical Model | Flow Characteristics | Features |
| SYJ300 | SYJ3120-5LZD-01 | C=0.5dm³/(s·bar) | 10.5mm width, small flow for miniature cylinders |
| SYJ500 | SYJ5120-5LZD-01 | C=1.2dm³/(s·bar) | 15mm width, medium flow, general purpose |
| SYJ700 | SYJ7120-5UZD-01 | C=2.0dm³/(s·bar) | 21mm width, large flow for high flow control |
- Key Features Summary
- High-Performance Flow Design: SY3000/SY5000 flow increased by 80% compared with previous generations; small valve with large flow allows downsizing.
- Low Power Saving: Power-saving DC24V type only consumes 0.45W, reducing operating cost for long-term continuous operation.
- High Reliability: Built-in pilot filter to avoid foreign matter failure; H-NBR sealing material with service life ≥50 million cycles.
- Flexible Mounting: Supports individual piping and manifold mounting; multiple port sizes available for diverse system adaptation.
- Comprehensive Protection: IP65/IP67 ingress protection, optional overvoltage protection, suitable for harsh working environments.
- Global Certifications: CE, UL, CSA, RoHS fully certified, applicable for international projects.
- Selection Mnemonic Rules
- Flow Matching: SY3 ≤40mm bore, SY5=40~63mm bore, SY7=63~80mm bore, SY9≥80mm bore
- Voltage Selection: DC24V preferred for strong anti-interference & low power; AC for long-distance control
- Mounting Rule: Single valve for individual piping; multiple valves for manifold mounting – space-saving & easy maintenance
- Function Configuration: Add indicator(Z), overvoltage protection(D), power-saving(T) as needed; IP67(S) mandatory for humid environments
- Cost Control: Domestic replacement for general use, original SMC for precision control, manifold type for bulk procurement
