Haver & Boecker Stainless Steel Frame Test Sieves

Overview

Haver & Boecker Stainless Steel Frame Test Sieves are precision-engineered laboratory and industrial sieving components designed for reliable, repeatable particle size distribution analysis in accordance with international standards including ISO 3310-1, ASTM E11, and DIN 4188. These sieves utilize a robust, monolithic stainless steel frame—typically fabricated from AISI 304 or optionally AISI 316 stainless steel—to ensure dimensional stability, corrosion resistance, and long-term mechanical integrity under rigorous vibratory or manual sieving conditions. The woven wire mesh or perforated plate is tensioned and permanently bonded to the frame using proprietary welding and clamping techniques that eliminate mesh drift, sagging, or edge lifting during extended use. Each sieve is manufactured under strict quality control protocols aligned with EN 10204 material certification requirements, supporting traceability and regulatory compliance in QA/QC, R&D, and production environments.

Key Features

• Monolithic stainless steel frame (25 mm standard height) engineered for rigidity and stack compatibility across standard sieve shakers
• Mesh options spanning 20 µm (ultrafine wire cloth) to 125 mm (coarse perforated plate), all conforming to ISO 3310-1 tolerances
• Electropolished or mechanically polished surface finish to minimize particle adhesion and facilitate cleaning
• Precision-ground flange interface ensuring coaxial alignment and leak-free stacking per ISO 4787 and ASTM D6913
• Optional EN 10204 3.1 material test certificate documenting chemical composition, mechanical properties, and heat treatment history
• Calibration services available—including mesh aperture verification via optical microscopy and laser diffraction—traceable to NIST or PTB standards

Sample Compatibility & Compliance

These test sieves accommodate dry and moderately damp granular, powdered, and fibrous materials—including pharmaceutical excipients, mineral aggregates, catalysts, ceramics, metal powders, and food ingredients—without degradation of mesh integrity. They are validated for use in GLP and GMP-regulated environments where documentation of equipment qualification is required. All standard sieves comply with EN 10204 2.2; upon request, Haver & Boecker issues EN 10204 3.1 certificates verifying conformity to specified material and manufacturing standards. The design supports full integration into automated sieve analysis systems compliant with FDA 21 CFR Part 11 when paired with certified software platforms.

Software & Data Management

While the stainless steel frame sieve itself is a passive mechanical component, it functions as a critical hardware element within digital particle sizing workflows. When used with Haver & Boecker’s SIEVE MASTER® or third-party systems (e.g., CILAS, Fritsch Analysette), the sieve’s calibrated aperture dimensions feed directly into statistical grain size distribution algorithms. Audit trails, calibration records, and usage logs are maintained in accordance with ISO/IEC 17025 and ASTM E2917 requirements. Optional RFID tagging enables automatic identification and lifecycle tracking within LIMS or MES environments.

Applications

• Quality control of raw materials and finished products in cement, mining, and metallurgical industries
• Particle size specification verification per USP <786> and EP 2.9.31 for pharmaceutical solid dosage forms
• Aggregate gradation testing in civil engineering labs (AASHTO T 27, ASTM C136)
• Research-scale powder flow characterization and attrition resistance evaluation
• Validation of jet mill, air classifier, and micronizer performance outputs
• Environmental sediment analysis per ISO 11277 and EPA Method 1684

FAQ

Are these sieves compatible with standard sieve shakers such as the Gilson RX-29 or Endecotts Octagon?
Yes—200 mm and 300 mm diameter models feature ISO/ASTM-compliant flange geometry and weight distribution for universal mounting on mechanical, electromagnetic, and sonic sieve shakers.

Can I obtain calibration documentation retroactively for existing sieves?
Yes—Haver & Boecker offers recalibration and certification services for both new and legacy sieves, including aperture measurement reports and EN 10204 3.1 certification if original material data is available.

What is the expected service life under daily laboratory use?
With proper handling and cleaning, sieves with AISI 304 frames typically exceed 10 years of operational service; AISI 316 variants are recommended for aggressive chemical or saline environments to extend longevity.

Do you supply mesh replacement kits or repair services?
Yes—Haver & Boecker provides authorized mesh replacement services at certified service centers, ensuring restored metrological integrity without frame deformation or flange misalignment.