CYBOR 25823-18 Retrofit-Ready Bellows Pump for 25823 Series

CYBOR 25823-18 Retrofit-Ready Bellows Pump for 25823 Series Control Systems

The CYBOR 25823-18 and its variant 25823-T4-18 (part reference 5026-00 B1) are precision bellows pumps engineered for photoresist and chemical dispense applications in semiconductor fabrication and flat-panel display (FPD) manufacturing lines. As legacy 25823 Series dispense systems approach end-of-service life, the 25823-18 and 25823-T4-18 serve as the primary retrofit-ready replacement units, offering a verified drop-in upgrade path that preserves existing tubing connections, dispense controller wiring, and process recipes without requiring full system redesign.

Procurement engineers and process equipment technicians sourcing obsolete or hard-to-find CYBOR bellows pump assemblies will find the 25823-18 / 25823-T4-18 to be the most direct compatibility match for installed 25823 Series dispense heads. These units are stocked for immediate shipment, individually tested prior to dispatch, and covered by a 12-month warranty against manufacturing defects.

Upgrade Compatibility Table

Retrofit Planning for Existing Automation Systems

When integrating the CYBOR 25823-18 or 25823-T4-18 into an existing dispense system, a structured retrofit plan significantly reduces risk and process downtime. The 25823 Series dispense platform is commonly found in track systems and coat/develop modules where the pump assembly interfaces directly with the dispense controller, chemical supply manifold, and nozzle assembly. Before removing the legacy pump, technicians should document the current dispense recipe parameters — including suck-back volume, dispense time, and pump speed settings — stored in the dispense controller or host recipe management system.

The chemical supply side of the retrofit requires attention to the inlet filter assembly and upstream supply tubing. If the existing filter cartridge has exceeded its service interval, it is best practice to replace it concurrently with the pump to avoid contaminating the new bellows with particulate from the supply line. Similarly, the outlet check valve and nozzle tip should be inspected; worn check valves are a common cause of dispense volume inconsistency that is often misattributed to pump failure.

For systems using a CYBOR dispense controller paired with the 25823 Series pump head, the controller’s pump drive parameters (stroke count, cycle rate, and suck-back timing) should be verified against the replacement pump’s rated stroke volume. In multi-head dispense configurations — where two or more 25823-18 units operate in parallel for dual-track or dual-chemical applications — each pump should be calibrated independently after installation to ensure matched dispense volumes across all heads.

Facilities running older coat/develop track equipment may also need to assess the condition of the chemical supply bottle cap assembly, pressure regulator, and N₂ supply line that pressurizes the chemical bottle. Degraded bottle cap seals or fluctuating N₂ pressure are upstream variables that directly affect pump performance and can mask whether a dispense issue originates from the pump or the supply system. Confirming stable N₂ pressure at the bottle cap before and after pump replacement is a critical commissioning step.

In retrofit scenarios involving older track systems where the original CYBOR 25823 Series documentation is unavailable, technicians frequently reference the physical port dimensions and tubing routing of the removed pump to confirm fit. The 25823-18 and 25823-T4-18 share the same external envelope and port locations as the original production units, making visual cross-referencing a reliable verification method when part number documentation is incomplete.

Related components commonly addressed during a 25823 Series pump retrofit include the CYBOR nozzle assembly, dispense arm wiring harness, chemical bottle cap and dip tube assembly, inlet and outlet PFA tubing sets, inline particle filter cartridge, N₂ pressure regulator and gauge assembly, dispense controller I/O cable, and the pump mounting bracket hardware kit. Addressing these ancillary components as part of a planned retrofit — rather than reactively — reduces the probability of repeat unplanned downtime within the same maintenance cycle.

Downtime Control During System Migration

Minimizing production downtime during a bellows pump replacement on a 25823 Series dispense system requires preparation before the maintenance window begins. The most effective approach is to pre-stage the replacement 25823-18 or 25823-T4-18 unit alongside all ancillary consumables — tubing, fittings, filter cartridge, and bottle cap seal — so that the physical swap can be completed within a single planned maintenance slot.

Prior to shutdown, export or photograph all active dispense recipe parameters from the controller. For track systems integrated with a host manufacturing execution system (MES) or equipment automation layer, confirm that the recipe data is backed up at the host level and not stored exclusively in volatile controller memory. This protects process continuity in the event that the controller requires a power cycle during the pump replacement procedure.

After installing the replacement pump, perform a full chemical purge cycle before running product wafers. The purge cycle displaces any residual air from the bellows and inlet tubing, ensuring that the first dispense cycle delivers a consistent, bubble-free volume. Follow the purge with a gravimetric dispense check — dispensing into a tared container and weighing the output — to verify that the pump is delivering the target volume within the process specification window before returning the system to production.

For facilities with redundant dispense heads or spare track modules, a parallel qualification run on a non-production module can further de-risk the return-to-service process. Once the replacement pump passes gravimetric verification and particle count checks, the system can be returned to the production queue with confidence that process continuity has been maintained.

Retrofit Support FAQ

Q1: Is the CYBOR 25823-T4-18 a direct drop-in replacement for the 25823-18?
A: Yes. The 25823-T4-18 is a variant designation within the same 25823-18 product family, sharing identical port geometry, mounting dimensions, and stroke volume. Both units are interchangeable in standard 25823 Series dispense head configurations. Confirm the tubing OD and fitting type on your existing installation before ordering if your system has been modified from the original OEM configuration.

Q2: What commissioning steps are required after installing a replacement 25823-18 pump?
A: After mechanical installation and tubing reconnection, perform a leak check at all inlet and outlet fittings under operating pressure. Run a minimum of three full purge cycles to remove air from the bellows chamber. Conduct a gravimetric dispense verification to confirm output volume matches the process recipe target. Log the calibration results and update the equipment maintenance record before returning the system to production.

Q3: Can the 25823-18 be used with chemical fluids other than photoresist?
A: The 25823-18 bellows pump is compatible with a range of process chemicals used in semiconductor and FPD manufacturing, including developer, SOG (spin-on glass), polyimide, and other low-viscosity process fluids. Compatibility with specific chemicals should be verified against the fluid’s material safety data sheet and the pump’s wetted material specifications. Contact our technical team at sales@smartnexmsk.com for application-specific compatibility guidance.

Q4: What does the 12-month warranty cover?
A: The 12-month warranty covers manufacturing defects in materials and workmanship from the date of shipment. Each unit undergoes functional testing prior to dispatch. The warranty does not cover damage resulting from improper installation, chemical incompatibility, operation outside rated parameters, or physical damage in transit. Warranty claims are processed through sales@smartnexmsk.com with supporting documentation of the defect.

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