SMC SY9120-5D-03 Solenoid Valve SY91205D03

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SMC SY9120-5D-03 Solenoid Valve (SY91205D03)

1. Product Overview

The SMC SY9120-5D-03 is a high-flow 2-position, 5-port single solenoid valve from SMC’s SY9000 series, engineered for heavy-duty pneumatic control in large-scale industrial automation systems. It features an internal pilot design, a DC24V low-power solenoid coil, and a 03 (Rc 3/8) port specification, making it ideal for controlling large-bore double-acting cylinders, rotary actuators, and high-flow pneumatic tools in automotive manufacturing, heavy machinery assembly, and bulk material handling applications. With an operating pressure range of 0.15–1.0 MPa, this valve delivers exceptional flow capacity and rapid response, while its non-locking push-type manual override enables on-site debugging without power supply. The robust die-cast aluminum alloy body and ISO 5599-1 compliant sub-base mounting design ensure stable operation in harsh industrial environments, supporting centralized piping layouts for simplified maintenance and system scalability.

2. Main Functions

Function Detailed Description
High-Flow Pneumatic Actuator Control 5-port (P, A, B, R1, R2) configuration switches large-volume compressed air flow to drive extension and retraction of heavy-duty double-acting cylinders, meeting the demands of high-load, high-cycle automation tasks.
Manual Override Operation Non-locking push-type plunger allows manual valve actuation for system testing, fault diagnosis, and emergency operation without electrical power, automatically resetting to the default state after release.
Real-Time Status Monitoring Built-in LED indicator on the solenoid coil provides visual feedback of valve activation status; integrated surge protection safeguards the coil from voltage spikes and extends service life.
Energy-Saving Low-Power Operation Equipped with a 0.5W low-power coil, minimizing energy consumption and heat generation for efficient long-term continuous operation in large-scale production lines.
Rapid Flow Reversal Optimized internal flow path and high-performance elastic seals deliver a fast response time of 8–12 ms and a maximum operating frequency of 10 Hz, matching the speed requirements of heavy-duty automation processes.
Centralized Piping Integration Compatible with SY9000 series sub-bases for centralized air supply and exhaust, simplifying system piping layout and enhancing maintenance efficiency in large-scale automation setups.

3. Technical Features

  1. Internal Pilot Operation: Utilizes the system’s supply pressure for valve actuation, eliminating external pilot air lines and reducing installation complexity and piping costs.
  2. High-Flow Capacity Design: Optimized internal valve core and flow path structure provide a large effective cross-sectional area, ensuring sufficient air supply for large-bore pneumatic actuators and heavy-load equipment.
  3. Robust Corrosion-Resistant Construction: Die-cast aluminum alloy valve body with anti-corrosion coating offers high structural rigidity and resistance to industrial contaminants, supporting a service life of ≥50 million cycles.
  4. Broad Operating Pressure Range: 0.15–1.0 MPa operating pressure covers heavy-duty pneumatic applications, compatible with a wide range of large-scale actuators and tools.
  5. IP65 Protection Rating: Dust-tight and water-resistant design for the connector area protects internal components from moisture and dust, ensuring stable operation in harsh industrial environments.
  6. Lubrication-Free Compatibility: Pre-lubricated internal components support oil-free pneumatic systems, avoiding contamination of sensitive workpieces in clean manufacturing processes.
  7. ISO Standard Mounting Compliance: Adheres to the ISO 5599-1 standard for sub-base mounting, enabling seamless integration with other standard pneumatic components and facilitating system expansion and modification.
  8. RoHS Compliance: Meets international environmental standards, free of restricted hazardous substances (e.g., lead, mercury), suitable for eco-friendly production facilities.

4. Product Dimensions (Unit: mm)

Dimension Parameter Value
Overall Length 145
Overall Width 60
Overall Height (Including Coil) 95
Port Specification Rc 3/8 (P, A, B, R1, R2)
Mounting Hole Diameter 8
Mounting Hole Spacing (Center-to-Center) 50 × 50
Solenoid Coil Connection D-Type Electrical Connector
Manual Override Diameter 6
Lead Wire Length (D-Type Configuration) 600

5. Weight and Material Specifications

Component Material Weight (g)
Valve Body Die-Cast Aluminum Alloy 650
Solenoid Coil Copper Wire + Epoxy Resin Encapsulation 120
Seals & O-Rings Nitrile Rubber (NBR) 25
Manual Override Plunger Reinforced Engineering Plastic 12
Threaded Fittings Brass 45
Mounting Fasteners Zinc-Plated Steel 18
Total Weight (Assembly) 870

6. Key Performance Parameters

Parameter Value
Operating Pressure Range 0.15–1.0 MPa
Rated Supply Voltage DC24V ±10%
Power Consumption 0.5W
Valve Response Time 8–12 ms
Maximum Operating Frequency 10 Hz
Ambient Temperature Range -10°C to 50°C (Non-Condensing)
Service Life ≥50,000,000 Cycles
Protection Class IP65 (Connector Area); Dust-Resistant (Body)
Working Fluid Filtered Compressed Air (Particle Size ≤5 μm)
Leakage Rate ≤0.1 cm³/min (at 1.0 MPa)
Manual Override Type Non-Locking Push Type
WHO WE ARE

About us

Located in Kunshan, China, Atifts Technology Co., Ltd. is a well-known enterprise specializing in electronic components distribution. We specialize in the sales of global brands of industrial automation components, with a wealth of experience in foreign product agents, and many of the world's leading manufacturers such as Keens, Schneider, SMC, ABB, Siemens, and other world-renowned manufacturers to establish a long-term and stable relations of cooperation.

Atifts Technology Co., Ltd. @ 2024

Over the years, we have always adhered to the "pioneering, pragmatic, standardized, innovative" management philosophy, and constantly promote the close integration of products and market demand. We firmly believe that only by constantly exploring new market areas, doing a good job in every detail, standardizing business processes, and continuously innovating products and services can we ensure that our products are more adaptable to market changes and meet the diversified needs of our customers. Since the founding of the company, we have always adhered to the core concept of "survival by quality", and are committed to providing customers with high-quality electronic components. At the same time, we take specialized R & D manufacturing as the goal, market-oriented development strategy to ensure that our products are always in the forefront of the industry.
With excellent product quality, professional technical service and good market reputation, Kunshan Autofits Technology Co.,Ltd. has won the trust and support of our customers. We look forward to working with more partners hand in hand, to achieve long-term win-win relationship, and jointly promote the prosperity of the electronic components industry.
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