4-011-04-0821 Solenoid Valve 4011040821 VALVE R422002730 24 VDC Pe 0-10 bar 2W

When a Homag CNC loses clamping pressure or a pneumatic actuator stops shifting, the 5/2 solenoid valve is often the cause. A stuck spool or burned coil leaves the machine unable to complete a clamp or release cycle, stopping production until the valve is replaced.

This is a 5/2 directional control valve with a 24 VDC solenoid, rated for 2.5 to 7 bar operating pressure. It is a new spare part for Homag CNC woodworking machines. Confirm fit by matching the Homag part number 4-011-04-0821 or 4011040821 on the existing valve, and check that the port configuration is 5/2.

Before installation, verify the coil voltage is 24 VDC and the supply pressure stays within 2.5 to 7 bar. Mount the valve on the manifold or subplate using the original fasteners, and connect ports according to the 5/2 function. Correct mounting keeps the spool shifting freely and prevents air leaks.

The valve ships as a new unit; packing and customisation options are not specified here. When enquiring, send the Homag part number 4-011-04-0821 or 4011040821, the machine model, and a photo of the existing valve. That lets the supplier confirm you receive the correct 5/2, 24 VDC configuration.

What the specification fixes, and what it leaves to the machine:

• Pneumatic cycle control — The 5/2 configuration gives two output paths for alternating clamp and release actions on Homag CNC machines.
• Coil voltage match — A 24 VDC solenoid coil matches the control voltage used on many Homag CNC machines, avoiding extra transformers.
• Pressure range fit — Rated from 2.5 to 7 bar, the valve covers the working pressure of typical pneumatic clamping and positioning circuits.
• Direct replacement — Homag part numbers 4-011-04-0821 and 4011040821 let you match the old valve before ordering a replacement.
• Spool wear point — The 5/2 spool shifts each cycle; replacing the valve restores clean shifting when the old spool sticks.
• Seal integrity — New seals in a new valve reduce internal leakage that causes slow or incomplete clamp movements.
• Mounting pattern — The valve mounts on the original manifold or subplate, so no changes to the air line layout are needed.
• Coil failure fix — A burned 24 VDC coil stops the valve from shifting; a new coil restores electrical control of the 5/2 function.
• Machine compatibility — Built for Homag CNC machines, the valve fits the pneumatic control block used for clamping and positioning tasks.

What changes on the shop floor once the unit is in place:

• Restores clamp cycles. A failed 5/2 valve stops clamping and releasing; fitting this 24 VDC valve brings those pneumatic actions back without modifying the machine.
• Correct voltage, no adapters. The 24 VDC coil connects to the existing control circuit, so you avoid adding a transformer or changing wiring during the repair.
• Pressure range covers the job. With a 2.5 to 7 bar rating, the valve works across the pressures used in Homag CNC pneumatic systems, reducing the risk of mismatch.
• Part number match. Using Homag numbers 4-011-04-0821 and 4011040821 for comparison helps you avoid ordering a valve with the wrong configuration.
• Fewer air leaks. New seals and a clean spool in a new valve cut internal leakage that can cause slow clamp response and wasted compressed air.
• Simple swap on the manifold. The valve mounts on the original subplate, so the air lines stay in place and the repair is limited to the valve itself.
• Spare on the shelf. Keeping a 5/2, 24 VDC valve in stores means a failed valve does not idle the machine while you wait for a replacement.

Check the Homag part number on your existing valve against 4-011-04-0821 or 4011040821. Also confirm the 5/2 configuration, 24 VDC coil, and 2.5 to 7 bar pressure range match your machine's requirements.

It means five ports and two positions. The valve directs air to two different outputs in turn, which suits alternating clamp and release actions on Homag CNC machines.

Yes, the solenoid is rated for 24 VDC. Confirm your machine's control voltage is 24 VDC before connecting the coil to avoid damage.

The operating pressure range is 2.5 to 7 bar. Keep your air supply within this range for stable valve operation.

It is a new spare part. No reconditioned or used unit is supplied under this part number.

Send the Homag part number 4-011-04-0821 or 4011040821, your machine model, and a photo of the old valve. That lets the supplier confirm the 5/2, 24 VDC configuration before shipping.

The valve is supplied with a 24 VDC solenoid. Other voltages are not stated for this part number, so confirm your requirement before ordering.

Verify the coil voltage is 24 VDC, the supply pressure is within 2.5 to 7 bar, and the mounting pattern matches the manifold. Correct checks prevent air leaks and spool binding.