Hydraulic Control Units (HCUs)
Every Mann Welding chromatography column can be paired with a hydraulic control unit for stable, repeatable packing and operation. Choose a rugged, software-free mechanical unit or a PLC-driven digital unit with closed-loop control and electronic records.

Mechanical HCU
Rugged manual control for reliable, software-free column packing and operation.
Best for: Pilot plants & teams that value manual oversight
View the Mechanical HCU →
Digital HCU
PLC-driven, recipe-based control with closed-loop pressure, audit trails, and electronic records.
Best for: GMP lines needing electronic records & integration
View the Digital HCU →| Compare | Mechanical HCU | Digital HCU |
|---|---|---|
| Control method | Manual valves & analog gauges | PLC, PID closed-loop, touchscreen |
| Records | Manual; no electronic records | Audit trail & electronic records |
| Validation | Simple — fully visible control path | Method recipes, user roles |
| Best for | Pilot & small-to-mid GMP lines | GMP manufacturing & integration |
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