Product Overview
The MAC 45A-BC1-DEFJ-1JM is a high-performance pneumatic solenoid valve manufactured by MAC Valves, a globally recognized leader in air valve technology. This 4-way, 5-port directional control valve operates on a balanced poppet design, delivering fast, repeatable response and high flow capacity in a compact body. Engineered for demanding industrial automation, the 45A series is a direct-acting solenoid valve that requires no minimum pilot pressure, ensuring reliable shifting even at low or zero system pressure. Its robust construction and modular design make it an ideal drop-in solution for OEM and MRO pneumatic control circuits worldwide.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pneumatic Solenoid Valve (4-Way, 5-Port Directional Control) |
| Model Designation | MAC 45A-BC1-DEFJ-1JM |
| Operating Pressure | Standard Industrial Grade (Up to rated bar, direct-acting, no minimum pilot pressure required) |
| Mounting & Connection | Standard ISO / Manufacturer Interface, inline or manifold mount |
Engineering Features & Advantages
- Precision Performance: Balanced poppet design delivers consistent, high-speed actuation and precise flow control with minimal pressure drop across the valve.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with a durable solenoid and wear-resistant internal components ensuring long service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, allowing straightforward drop-in installation without modification.
Typical Industrial Applications
This MAC 45A-BC1-DEFJ-1JM pneumatic solenoid valve is widely deployed in plastic injection molding machines, packaging and assembly automation lines, CNC machine tools, and general industrial pneumatic control systems requiring fast, reliable directional air control.
PRODUCT IMAGES



MAC 45A-BC1-DEFJ-1JM Pneumatic Solenoid Valve
âš¡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine MAC 45A-BC1-DEFJ-1JM= Solenoid Operated Directional Control Valve. This USA-made 24 VDC hydraulic component features a 4-way, 2-position spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.