Preservation Technologies presents Bookkeeper BKK-4 Manual Spray System – a modern solution designed for the safe deacidification of large-surface paper materials. For over 30 years, archivists, librarians, and conservators worldwide have trusted Bookkeeper technology, which effectively neutralises the acids that weaken paper structure.
Bookkeeper BKK-4 Manual Spray System - Profesjonalny system ręczne odkwaszanie papieru.
Bookkeeper programme introduces to the paper structure safe, non-toxic alkaline buffer, which neutralises the harmful acids responsible for the fragility and degradation of materials. To date, thanks to Bookkeeper technology, the following have been safely preserved: over 50 million individual sheets of paper and over 8 million books – using both the mass liming method and spray systems.
Model BKK-4 został zaprojektowany z myślą o precyzyjnej, wygodnej i cichej pracy. Urządzenie idealnie sprawdzi się w archiwach, bibliotekach i pracowniach konserwatorskich.
Dimensions: 503 mm (Length) × 635 mm (Width) × 1130 mm (Height)
Net weight: 75 kg
Power supply AC 220V / 50Hz or AC 120V / 60Hz
Power 200W
Hydraulic pump operating pressure: ≤ 0.38 MPa
Tank capacity: 5 litres
Controls 10-inch touchscreen
Screen resolution 1920 × 1080
Number of nozzles 1
Intuitive touch interface with functions: start, stop, mixing, liquid recovery, settings, and device status
Monitoring the liquid level and fluid weight
Automatic preparation mixing
Acidifying spray recovery function
Low fluid level alerts
Removable, pressurised 5-litre tank with built-in agitator
High-precision spray gun and nozzle
Quiet operation – no need for an external compressor
Bookkeeper is a preparation non-toxic, non-flammable and safe to use. It contains no CFCs or solvents, does not clog nozzles, is practically odourless, and dries in a few minutes. Refills are also available in canisters. 5.67 kg.





