CONVUM CVX-1243-MC2 OZ23 Service-Ready Spare Part for Industrial Maintenance

CONVUM CVX-1243-MC2 OZ23 Service-Ready Spare Part for Industrial Maintenance

The CONVUM CVX-1243-MC2 OZ23 is a ruggedized vacuum generator module engineered for continuous operation in harsh industrial environments. As a service-ready spare part, it is designed to support rapid on-site replacement, minimise unplanned downtime, and maintain the integrity of vacuum-based automation circuits in demanding production settings. Whether you are managing a scheduled annual overhaul, responding to an emergency line stoppage, or building a proactive spare parts inventory for your control cabinet, the CVX-1243-MC2 OZ23 delivers the reliability and compatibility that maintenance engineers and procurement teams require.

CONVUM’s CVX series vacuum generators are widely deployed across assembly automation, semiconductor handling, food packaging, and precision pick-and-place systems. The OZ23 variant is specifically rated for ruggedised duty cycles, making it a preferred replacement choice in environments subject to vibration, temperature cycling, particulate contamination, and elevated humidity. Its compact modular form factor integrates directly into existing CVX-series manifold assemblies without mechanical modification, reducing replacement time and the risk of installation error during critical recovery windows.

Spare Maintenance Table

Maintenance Planning for Continuous Operation

Replacing the CVX-1243-MC2 OZ23 in isolation rarely addresses the full scope of a vacuum circuit failure. Experienced maintenance engineers treat a vacuum generator replacement as a trigger for a broader control cabinet and pneumatic circuit inspection. During the same maintenance window, it is advisable to verify the condition of the CONVUM CVX-series solenoid valve manifold and associated vacuum filter elements, as particulate ingress is a leading cause of premature ejector wear in harsh environments.

On the electrical side, the vacuum generator’s control solenoid is typically driven by a 24 VDC power supply module — inspect the output voltage stability and check for ripple that could cause intermittent solenoid actuation. If the system uses a CONVUM vacuum switch or pressure sensor (such as the CVS or CPS series) for feedback to the PLC, verify sensor calibration and wiring integrity at the terminal block. Loose connections at DIN rail terminal strips are a common source of false vacuum-loss alarms that are misdiagnosed as generator failure.

For PLC-controlled vacuum circuits, review the digital output (DO) module channel assigned to the solenoid driver. A faulty DO channel can mimic a vacuum generator fault; substituting the channel or testing with a relay output module in parallel is a standard diagnostic step. Where the system integrates a fieldbus communication module (PROFIBUS, DeviceNet, or EtherNet/IP), confirm that the vacuum control node is responding correctly after the replacement to avoid ghost faults in the SCADA or DCS historian.

In multi-zone vacuum systems, also inspect the vacuum accumulator tank and its check valve for internal leakage, and verify that polyurethane or silicone vacuum tubing connections are free of micro-cracks — particularly at push-in fittings that have been cycled repeatedly under thermal stress. A vacuum gauge or handheld leak detector should be used to confirm system integrity before returning the line to production. Finally, review the HMI alarm log for any recurring vacuum-low events in the weeks preceding the failure; these often indicate a gradual degradation pattern that points to upstream filter blockage or tubing fatigue rather than a sudden generator fault.

Site Replacement Workflow

Step 1 — Isolation & Lockout: Isolate the pneumatic supply to the affected vacuum circuit and depressurise the line. Apply LOTO (Lockout/Tagout) to the associated solenoid valve control circuit at the control cabinet before proceeding.

Step 2 — Module Removal: Disconnect the vacuum port tubing and exhaust silencer from the CVX-1243-MC2 OZ23. Release the manifold retention clips or screws per the CONVUM CVX installation guide. Note the orientation of the module before removal to ensure correct reinstallation of the OZ23 variant.

Step 3 — Compatibility Verification: Confirm that the replacement CVX-1243-MC2 OZ23 matches the manifold port pattern (MC2) and the OZ23 orifice rating. Cross-reference the part number on the module body with the procurement documentation. Do not substitute with a non-OZ23 orifice variant, as this will alter the vacuum flow characteristic and may trigger PLC vacuum-loss faults.

Step 4 — Installation & Leak Test: Seat the new module onto the manifold, secure retention hardware to the specified torque, and reconnect tubing. Restore pneumatic supply at reduced pressure (approx. 0.3 MPa) and perform a leak test using soapy water or an electronic leak detector before returning to full operating pressure.

Step 5 — Functional Verification: Energise the solenoid via the PLC or manual override and confirm vacuum level reaches the setpoint registered by the vacuum switch. Clear any latched alarms on the HMI and log the replacement in the maintenance management system (CMMS) with the new part serial number and installation date.

Step 6 — Return to Production: Monitor the first 30 minutes of production operation for vacuum stability. Confirm that cycle times and pick-and-place success rates return to baseline before releasing the line to full throughput.

Spare Parts Support FAQ

Q1: Is the CVX-1243-MC2 OZ23 a direct drop-in replacement for the original CONVUM module?
Yes. The CVX-1243-MC2 OZ23 is supplied as an original-specification spare part and is dimensionally and functionally compatible with existing CVX-series MC2 manifold assemblies. No mechanical modification or re-parameterisation of the PLC vacuum setpoint is required, provided the OZ23 orifice variant is correctly matched to the original installation.

Q2: What pre-shipment testing is performed before dispatch?
Every CVX-1243-MC2 OZ23 unit is function-tested and visually inspected prior to shipment. Testing confirms vacuum generation performance and solenoid actuation integrity. Units are packaged in anti-static, moisture-resistant packaging to protect against transit damage and environmental exposure.

Q3: Can NINERMAS support long-term or blanket-order procurement for this part?
Yes. NINERMAS offers long-term supply agreements and scheduled delivery programmes for the CVX-1243-MC2 OZ23 and related CONVUM CVX-series components. This is particularly suited to maintenance teams managing multi-site installations or annual overhaul schedules where forward stock commitment reduces procurement lead-time risk. Contact our team to discuss volume pricing and consignment stock options.

Q4: What is the warranty coverage and what does it include?
All CVX-1243-MC2 OZ23 units supplied by NINERMAS carry a 12-month warranty from the date of shipment. The warranty covers manufacturing defects and functional failure under normal operating conditions. It does not cover damage resulting from incorrect installation, operation outside specified parameters, or physical mishandling. Warranty claims are supported by our technical team with replacement dispatch prioritised to minimise customer downtime.