Safe handling
Containment glovebox with viewing windows, door & bottle status and emergency stop.
Products — Bulk chemical delivery
bCDS — bulk Chemical Delivery System
4Tex's bulk chemical delivery system for semiconductor liquids — controlled, safe and contamination-free supply of process chemicals, individually configured for your wet-chemical processes.
System description
Safe chemical delivery with containment
The bCDS supplies process chemicals in a controlled and contamination-free manner. The integrated containment glovebox enables safe handling; the operator panel controls fill, circulate, purge, drain and mix functions with continuous pressure and safety monitoring.
The system is available in various configurations — from single- and multi-channel versions to a refilling station. Each system is engineered and quoted individually to your process requirements; configurations are not offered as standard variants.
Fill · Circulate · Purge · Drain · Mix
Containment glovebox
Emergency stop & monitoring
Advantages & applications
Engineered for wet-chemical semiconductor processes
Controlled supply
Monitored fill/drain pump pressure and float switch for reproducible operation.
Individually configured
Channel count, handling and layout are matched to your process and chemicals.
Point of use
POU box — distribution at the point of use
The POU box keeps the process medium moving all the way to the point of use. When no consumer is drawing fluid, it automatically switches to periodic recirculation — so the medium stays immediately available.
As a dedicated distribution unit on site, it is built from the same FR-PP (FM4910) material as the bCDS series and is monitored and operated from its own local control panel. It offers up to 10 distribution strands, 5 of them currently active.
FR-PP (FM4910)
Local control panel
Up to 10 distribution strands
Frequently asked questions
Questions about the bCDS
Is chemical supply interrupted during a barrel change?
Not on the Duo version: while one barrel actively supplies the process, the other can be replaced via a guided HMI sequence. The changeover uses double isolation — a manual hand valve plus an automatic upstream shut-off valve — and the connectors are mechanically keyed so they can only be engaged on the correct barrel port.
What utility connections are required for installation?
Required are a 230 VAC single-phase power supply (16 A), pressurised CDA (5–7 bar), nitrogen (N₂, 0.5–2 bar), a DI water supply and an exhaust connection. The system is designed for front-access service only — no side or rear clearance is needed, reducing the footprint required for integration.
What safety systems are built into the bCDS?
Two independent safety circuits: a Basic Safety System (EMO buttons on the power distribution box and operation panel, exhaust sensor) and a Tool Safety System (floating switch, door switches, bottle-in-place sensor). A leak sensor additionally detects any escaping liquid automatically and activates the drain pump to prevent accumulation.
What do the stack light colours indicate?
Red: fault/alarm, immediate attention required. Blue: service/maintenance required. Yellow: warning, system still operational but should be checked. Green: normal operation. Mixed colours indicate transitional or special states such as startup, standby or maintenance mode.
What warranty does 4Tex provide on the bCDS?
4Tex provides a 6-month warranty against defects in material and workmanship, calculated from the invoice date. Within this period, once a defect is reported and confirmed, 4Tex will, at its own discretion, provide a replacement or repair; shipping and installation of replacement parts are at the buyer's expense.
Which bCDS configuration fits your process?
Describe your requirements — we will engineer the system individually and prepare a quotation.
bCDS enquiry