Overview
The MAC 45A-LAC-DDAJ-2KJ is a direct solenoid-operated 4-way poppet valve engineered for fast response and long service life in pneumatic circuits. Part of MAC Valves’ proven 45 Series platform, this compact unit combines a short-stroke solenoid with a balanced poppet design and conical seats, delivering high shifting forces, repeatable response times, and durability suitable for continuous-duty applications.
Key Features
- Direct Solenoid Operation – Balanced poppet construction eliminates pressure sensitivity and ensures fast, consistent actuation regardless of inlet pressure fluctuations.
- Locking Manual Override – Recessed manual operator allows safe fieldside manual control and emergency operation.
- Manifold Base Mounting – Standard 1/8″ NPT sub-base configuration integrates cleanly into modular pneumatic systems.
- Wide Pressure Range – Operates reliably from vacuum through +120 psi, accommodating diverse industrial applications including evacuation, vacuum holding, and pressurized actuation.
- Minimal Maintenance – Encapsulated coil class A design requires no lubrication under standard service conditions.
- 4-Way / 2-Position Versatility – Spring-reset monostable design allows configuration as 4-way, 3-way, 2-way, or selector applications with flexible piping arrangements.
Technical Specifications
- Solenoid Voltage: 24 V DC, 5.4 W
- Valve Configuration: 4-way, 2-position, direct solenoid poppet
- Operation Type: Spring-reset monostable (single solenoid)
- Flow Coefficient (Cv): 0.11
- Pressure Rating: Vacuum to +120 psi
- Pneumatic Ports: 1/8″ NPTF female (A, B) + 1/4″ NPTF female (EXH, IN)
- Manual Operator: Locking recessed, spring-biased
- Electrical Connection: Square DIN 43650 connector (male plug-in)
- Mounting Style: Manufacturer sub-base (manifold base)
- Dimensions: H 100 mm × W 20 mm × D 71 mm
- Weight: 0.35 lbs (0.16 kg)
- Input Medium: Compressed air, inert gases, or vacuum
- Certifications: IEC 61504-8, IEC 61561-1, ISO 13849, REACH
Typical Applications
- Pneumatic actuator control and switching (cylinders, motors)
- Vacuum evacuation and hold systems
- Selector and diverter valve configurations
- High-cycle industrial automation circuits requiring fast response
- Machine tool and transfer line actuation
- Test and measurement equipment pneumatic circuits
- Pick-and-place, material handling, and robotic systems
Compatibility & Replacements
Compatible With
- MAC Valves 45 Series modular base stacks and manifold systems
- Standard 1/8″ NPTF and 1/4″ NPTF pneumatic porting networks
- DIN 43650 (square connector) plug-in solenoid ecosystems
- 24 V DC power supplies and automation control systems
- Industrial PLC/motion control circuits using solenoid valve actuation
Replaces / Drop-In Replacement For
- MAC 45A-LAD-DDAJ-2KJ (4-way, 1/8″ NPT base-mount variant)
- 45ALACDDAJ2KJ (equivalent alphanumeric designation)
Works With
- MAC Valves circuit bar and sub-base manifold assemblies
- Pneumatic control logic networks (pilot-operated and direct-acting stages)
- Standard industrial solenoid valve mounting blocks
- 24 V DC automation power distribution and control relays
