Overview
The MAC 56C-77-871BA solenoid valve is a compact 3-way solenoid-piloted spool valve from MAC’s proven 56 Series product line. Paired with the 130B-871BAAA solenoid coil, this valve provides responsive, dependable pneumatic actuation for automation and process control applications. The balanced spool design minimizes sensitivity to backpressure and inlet restrictions, making it suitable for demanding industrial environments.
Key Features
- 3-way balanced spool valve with solenoid pilot operation
- Patented MACSOLENOID technology for non-burnout AC service and fast response times
- Pilot-operated design with integrated 130B-871BAAA solenoid coil
- Monostable spring-return operation for fail-safe control
- Function plate reversibility enables Normally Closed (N.C.) or Normally Open (N.O.) configuration
- Converts to 2-way operation or remote air pilot operation with simple modifications
- Rated for vacuum through +150 psi pressure range
- Built-in accumulator for consistent pilot supply and smooth shifting
Technical Specifications
- Valve Type: 3-way, 2-position solenoid pilot-operated balanced spool
- Series: MAC 56C
- Solenoid Coil: 130B-871BAAA
- Operation: Monostable (spring return)
- Pressure Range: Vacuum to +150 psi
- Spool Function: Balanced poppet design
- Pilot: Normally Closed (N.C.) or Normally Open (N.O.) via function plate
- Porting: Individual inline mounting with threaded ports
- Manual Operator: Non-locking recessed manual override included
- Connector: DIN 43650 square plug-in connector
- Condition: New in box
Typical Applications
- Pneumatic cylinder and actuator control in industrial automation
- Machine tool logic and sequencing
- Air-operated clamping and fixturing systems
- Pneumatic press and stamping equipment
- Process air distribution and switching
- OEM equipment manufacturer controls and pilot logic circuits
Compatibility & Replacements
Compatible With
- Standard 24 VDC pneumatic control systems
- Industrial pneumatic networks operating vacuum to +150 psi
- DIN 43650 solenoid connector-compatible controllers and enclosures
- Compressed air systems with or without lubrication
- Remote pilot air-operated systems (with solenoid removal)
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering to confirm functional equivalence for your specific application.
Works With
- MAC 130B series solenoid coils (130B-871BAAA standard)
- Standard pneumatic fluid power hose and fittings
- Manual air valves and pilot-operated systems
- Vacuum and low-pressure pneumatic networks
- Lube and non-lube pneumatic service








