CONVUM CVX-1243-MC2 OZ23 Replacement for CVX Series

Product Overview

CONVUM CVX-1243-MC2 OZ23 Replacement for CVX Series: Seamless Transition & Legacy System Compatibility

When your production line depends on a CONVUM CVX-1243-MC2 OZ23 multi-stage vacuum generator and the original unit reaches end-of-life, unplanned downtime is not an option. This replacement and upgrade solution is engineered specifically for facilities running legacy CVX Series vacuum systems, offering a smooth, drop-in migration path that preserves your existing wiring infrastructure, pneumatic circuit layout, and control logic without requiring a full system redesign.

The CVX-1243-MC2 OZ23 is a multi-stage vacuum generator from CONVUM’s CVX Series, widely deployed in semiconductor handling, SMT pick-and-place lines, robotic end-of-arm tooling, and precision assembly automation. As original units age or become discontinued, sourcing a verified replacement with confirmed dimensional, port, and performance compatibility becomes critical. Our replacement unit matches the original CVX-1243-MC2 OZ23 in vacuum level, flow rate, supply pressure range, and body dimensions, ensuring that your existing vacuum circuit — including suction cups, vacuum switches, and filter elements — continues to operate within specification.

For facilities integrating this vacuum generator into a broader automation architecture, the CVX-1243-MC2 OZ23 typically operates alongside a PLC-controlled solenoid valve manifold. In many CVX Series installations, the vacuum generator is governed by a Mitsubishi MELSEC Q-series or iQ-R series PLC output module driving a 24 VDC solenoid valve, such as those in the SMC SY series or CKD 4F series. The replacement unit maintains the same 24 VDC pilot signal compatibility, so no changes to the PLC output card wiring or ladder logic are required. If your system uses a Keyence CV-X series vision controller or an Omron NX/NJ series machine automation controller to trigger vacuum on/off sequences, the signal interface remains unchanged.

In retrofit scenarios where the original CVX-1243-MC2 OZ23 is mounted on a manifold block or integrated into a vacuum circuit with a CONVUM VPH series vacuum pressure switch or a CONVUM VQP series vacuum filter, the replacement unit is dimensionally compatible with standard CVX Series port spacing and thread specifications. This means your existing manifold, tubing, and filter assembly can be reused without modification, significantly reducing retrofit labor time and the risk of introducing new leak points.

For systems where the vacuum generator feeds into a centralized I/O monitoring architecture — for example, a Beckhoff EtherCAT I/O terminal block reading vacuum switch feedback signals, or a Siemens ET 200SP distributed I/O station collecting process status — the replacement CVX-1243-MC2 OZ23 produces the same analog and digital feedback characteristics as the original, ensuring your SCADA or HMI display (such as a Proface GP4000 series or Weintek cMT series panel) continues to reflect accurate vacuum status without recalibration.

Installation is straightforward: disconnect the supply air line (typically 0.4–0.5 MPa filtered dry air), remove the original unit from its mounting bracket or manifold, install the replacement using the existing port fittings and mounting hardware, reconnect the solenoid valve pilot line and vacuum switch signal cable, and restore supply pressure. A brief functional test — cycling the solenoid valve through the PLC and verifying vacuum level on the pressure switch — is all that is required before returning the line to production. Total installation time in a well-documented facility is typically under 30 minutes.

For facilities managing spare parts inventory across multiple production lines, we recommend stocking one replacement CVX-1243-MC2 OZ23 unit per line as a critical spare. Our warehouse maintains ready stock with same-day dispatch available for orders confirmed before 15:00 CST, with DHL Express and FedEx International Priority options for urgent international shipments from Xiamen.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful CVX-1243-MC2 OZ23 retrofit rarely involves the vacuum generator alone. In most CVX Series installations, the upgrade process also touches the solenoid valve driving the vacuum on/off cycle — commonly an SMC SY3140 or CKD 4F310 series valve — which should be inspected and replaced if it shows signs of wear, as a degraded solenoid valve will mask the performance improvement of a new vacuum generator. The CONVUM VQP series inline vacuum filter upstream of the CVX unit should also be replaced during the same maintenance window to ensure the new generator operates with clean, dry air from day one.

If your system uses a CONVUM VPH series vacuum pressure switch to provide feedback to the PLC, verify that the switch setpoint is still calibrated to your process vacuum threshold after installing the replacement unit, as slight differences in generator response time between a worn original and a new replacement can affect switch trigger timing. For lines where vacuum feedback is read by a Keyence AP series digital pressure sensor rather than a mechanical switch, no recalibration is typically needed.

In facilities where the CVX-1243-MC2 OZ23 is integrated into a multi-axis robotic cell controlled by a Fanuc R-30iB or Yaskawa DX200 robot controller, the vacuum generator replacement can be completed during a scheduled tool change without modifying the robot program, provided the replacement unit’s vacuum build-up time is within the original specification. For cells using a Mitsubishi iQ-R series PLC as the cell controller coordinating the robot and vacuum system, the existing sequence program requires no modification.

Where the vacuum circuit includes a CONVUM CVE series ejector or a CONVUM MCV series multi-circuit vacuum unit on the same manifold as the CVX-1243-MC2 OZ23, the replacement procedure is isolated to the CVX unit only — the adjacent ejectors and their individual solenoid valves are unaffected. This modular architecture is one of the key advantages of the CVX Series platform and significantly reduces the scope and risk of the replacement procedure.

Retrofit Guidance FAQ

Q: Do I need to modify my PLC wiring or ladder logic?
A: No. The replacement CVX-1243-MC2 OZ23 uses the same 24 VDC solenoid pilot interface and the same vacuum switch signal type (NPN/PNP digital) as the original. Your existing PLC output module wiring and sequence program remain unchanged.

Q: Is the replacement unit compatible with my existing manifold block?
A: Yes. The replacement unit matches the CVX Series standard port spacing, thread specification, and body footprint. Existing manifold blocks, port fittings, and tubing can be reused without modification.

Q: What communication protocol does the vacuum switch feedback use?
A: The vacuum pressure switch (CONVUM VPH series or equivalent) connected to the CVX-1243-MC2 OZ23 outputs a standard NPN or PNP digital signal, compatible with any PLC digital input module regardless of the fieldbus protocol (PROFINET, EtherNet/IP, EtherCAT, CC-Link IE, or DeviceNet) used by the broader control system.

Q: Will the replacement unit fit in the same control cabinet or machine frame space?
A: Yes. The replacement unit is dimensionally identical to the original CVX-1243-MC2 OZ23, requiring no modifications to mounting brackets, cable management, or pneumatic tubing routing.

Q: How long does installation take?
A: In a well-documented facility with the supply air isolated and the original unit accessible, replacement typically takes under 30 minutes including functional verification.

Q: Can I use this replacement in a cleanroom or semiconductor environment?
A: The CVX Series is designed for precision automation environments. Confirm your specific cleanliness class requirement against the unit’s material and lubrication specifications before deployment in ISO Class 5 or better environments.

Warranty Assurance

Every CONVUM CVX-1243-MC2 OZ23 replacement unit supplied by TOPNLMS is covered by a 12-month warranty from the date of shipment. Prior to dispatch, each unit undergoes functional verification including supply pressure test, vacuum level measurement, and solenoid pilot response check. Units that do not meet original CONVUM CVX Series performance specifications are not shipped.

In the event of a warranty claim, TOPNLMS provides a replacement unit or full refund within the warranty period. Our after-sales response target is one business day for initial diagnosis and three business days for replacement dispatch. We maintain warehouse stock specifically to support warranty replacements without lead-time delays.

For procurement teams requiring documentation, we can provide a test report, packing list, and commercial invoice with HS code declaration for customs clearance. Shipments are dispatched from Xiamen, China via DHL Express, FedEx International Priority, or sea freight depending on order volume and urgency.

For urgent replacement inquiries, volume pricing, or technical compatibility confirmation, contact our industrial automation parts team directly.