304 stainless steel tank

304 Stainless Steel pulp storage tank – High-Performance Solution for Industrial Fiber Slurry Management

Engineered for precision and durability, this 304 stainless steel pulp storage tank is a critical component in modern pulp processing systems, designed to homogenize, store, and dose fiber suspensions with exceptional consistency control—maintaining ±2% accuracy across high-volume operations. Ideal for molded pulp manufacturing, papermaking, and advanced biopolymer applications, it combines food-grade safety with industrial resilience, ensuring reliable performance in demanding environments.

Constructed from premium 304 (18/8) stainless steel, the tank features an alloy composition of 18% chromium and 8% nickel, offering superior corrosion resistance per ASTM A240/A276 standards. With a maximum carbon content of 0.08%, weldability is optimized, while surface treatments such as #4 brushed finish (Ra 0.8 μm) and electropolished interior (down to 0.5 μm) ensure easy cleaning and minimal fiber adhesion. A passivation layer applied per ASTM A967 further enhances chemical stability, making it suitable for pH ranges from 2 to 11.

The tank’s mechanical design supports working pressures between 0.3–0.5 MPa (customizable up to 1.0 MPa) and operates reliably within temperatures from -20°C to 200°C, with continuous use at 80°C. Its integrated agitation system includes a 3-phase 1.5 kW motor with variable frequency drive (VFD), enabling adjustable mixing speeds up to 60 RPM. The impeller, made of 316L stainless steel with a 45° pitched blade configuration, ensures uniform dispersion even in viscous slurries. Available in capacities ranging from 500L to 5000L (custom options up to 20 cubic meters), the unit maintains a 1:1 aspect ratio for optimal flow dynamics and efficient energy transfer.

Three specialized variants are available: Thickened Pulp Tanks for 4–8% consistency storage, equipped with bottom-mounted helical agitators; Pulp Mixing Tanks featuring real-time consistency monitoring via inline density meters and PLC feedback; and Pulp Supply Tanks with constant-level dosing systems and pneumatic diaphragm pump compatibility. These configurations allow seamless integration into any stage of the pulp-making process—from raw fiber preparation to final product formation.

Designed for global compliance, the tank meets FDA 21 CFR and EC1935/2004 hygiene standards, ensuring safe handling of food-contact materials. It supports Industry 4.0 readiness through 4–20mA sensor cabling for IoT-enabled remote monitoring, predictive maintenance alerts, and data-driven optimization. Structural requirements include reinforced concrete foundations and seismic bracing for regions above 4.0 Richter scale, while utility hookups accommodate water dilution lines, HEPA-filtered venting, and standardized sanitary fittings like Tri-clover connections.

Applications span molded pulp production (egg trays, fruit packaging, cushion molding), recycled fiber processing, tissue stock systems, specialty paper coating, nanocellulose slurry handling, and biopolymer blending for sustainable materials. Whether used in automated facilities or traditional plants, this tank delivers consistent output quality, reduced downtime, and extended service life—typically over 20 years with routine upkeep.

Users consistently highlight its low maintenance needs, energy efficiency (30% less power than carbon steel alternatives), and ability to maintain stable fiber suspension under varying operational conditions. Maintenance protocols—daily sight glass checks, weekly torque inspections, monthly gasket replacements, and annual ASME recertification—ensure long-term reliability without compromising productivity.

Common inquiries often center on compatibility with different pulp types, ease of integration into existing systems, and expected lifespan under heavy-duty use. The answer lies in its modular design, robust material selection, and smart sensor-ready architecture that adapts to evolving industry demands—from traditional manufacturing to emerging green technologies like 3D molded pulp feedstock tanks and nanocellulose production.

Product Categories : Pulp Making System > Pulp Tank