<h2>Overview</h2>
<p>The <strong>MAC 45A-MAJ-DDAJ-1KJ</strong> is a direct solenoid-operated 4-way poppet valve part of MAC Valves’ proven 45 Series lineup. <cite index=”9-1,9-2″>This is a direct solenoid operated 4-way poppet valve that features a short stroke solenoid, a balanced poppet and conical seats.</cite> The -MAJ- variant designation indicates single manual operator configuration, making it ideal for manual override in pneumatic control circuits. This valve is widely used in machine automation, motion control, and industrial fluid systems.</p>
<h2>Key Features</h2>
<ul>
<li><cite index=”9-3,9-6″>High shifting forces, fast consistent response times, and long service life</cite></li>
<li><cite index=”2-12″>Bonded balanced poppets for high flow precise repeatability and consistent operation</cite></li>
<li><cite index=”2-13,2-14″>Balanced poppet design permits versatility in piping—can be configured as 4-way, 3-way, or 2-way, normally closed, normally open, or used for vacuum/diverter/selector applications</cite></li>
<li><cite index=”2-15″>Usable on lube or non-lube service</cite></li>
<li><cite index=”1-3″>Manual overrides as standard</cite></li>
<li><cite index=”2-16,2-17″>Extremely high cycle rates and long service life due to unique poppet cushions</cite></li>
</ul>
<h2>Technical Specifications</h2>
<p>Based on MAC 45 Series DDAJ-1KJ variants:</p>
<ul>
<li><strong>Series:</strong> MAC 45A</li>
<li><strong>Valve Type:</strong> 4-Way, 2-Position Direct Solenoid Poppet</li>
<li><strong>Port Configuration:</strong> 4-Port Body</li>
<li><strong>Port Size:</strong> 1/8" (NPTF or BSPPL, depending on operator variant)</li>
<li><strong>Operating Voltage:</strong> 24 V DC (5.4 W) typical</li>
<li><strong>Operator Type:</strong> Single Manual Operator (Non-Locking)</li>
<li><strong>Flow Controls:</strong> None</li>
<li><strong>Electrical Connection:</strong> Square or Mini Plug-In Connector (Male)</li>
<li><strong>Weight:</strong> 0.20 lbs (typical for 45A valve body)</li>
<li><strong>Operating Pressure:</strong> Vacuum to +120 psi (typical for 45 Series)</li>
</ul>
<h2>Typical Applications</h2>
<ul>
<li>Pneumatic actuator control in automated assembly lines</li>
<li>Air tool and press machine operation</li>
<li>Valve manifold and circuit integration</li>
<li>Industrial automation motion control systems</li>
<li>High-cycle production equipment</li>
<li>PLC-based pneumatic sequencing and control</li>
</ul>
<h2>Compatibility & Replacements</h2>
<h3>Compatible With</h3>
<ul>
<li>MAC solenoid coil assemblies for 45 Series configuration</li>
<li>Standard pneumatic circuits using 1/8" port connections</li>
<li>24 VDC control logic and PLC outputs</li>
<li>Industrial compressed air systems at 0–120 psi</li>
<li>Manual valve manifolds and sandwich plate configurations</li>
</ul>
<h3>Replaces / Drop-In Replacement For</h3>
<p>The 45A-MAJ-DDAJ-1KJ is a direct replacement for equivalent MAC 45A single-operator valves with the same port configuration and electrical specifications. Related 45A variants (such as 45A-AA1-DDAJ-1KJ, 45A-AC1-DDAJ-1KJ, and 45A-SC1-DDAJ-1KJ) share the same core platform but with different operator types and port thread standards. Verify exact part compatibility with your system integrator before ordering.</p>
<h3>Works With</h3>
<ul>
<li>24 VDC solenoid control circuits</li>
<li>Industrial PLC outputs and relay logic</li>
<li>Pneumatic control systems and manifold blocks</li>
<li>Standard industrial compressed air supply (ISO 4401 compliant)</li>
</ul>
