Airs Marble Balance Weighing Table
| Brand | Airs |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | Marble Balance Weighing Table |
| Pricing | Available Upon Request |
Overview
The Airs Marble Balance Weighing Table is an engineered vibration isolation platform specifically designed for high-precision analytical balances, microbalances, and ultra-microbalances used in metrology, pharmaceutical QC, materials science, and trace-level chemical analysis. Constructed with a solid natural marble top (typically grade A grey or black granite-marble composite), the table leverages the material’s exceptionally high density (~2.6–2.8 g/cm³), low coefficient of thermal expansion (<5 × 10⁻⁶ /°C), and inherent internal damping to suppress broadband mechanical vibrations—particularly those in the critical 1–100 Hz range generated by building infrastructure, HVAC systems, foot traffic, and nearby centrifuges or pumps. Unlike steel or laminated wood alternatives, the monolithic marble mass provides passive inertial stabilization without requiring active feedback control or compressed air supply—making it ideal for ISO Class 5–7 cleanrooms, GLP-compliant laboratories, and environments where operational simplicity and long-term dimensional stability are mandatory.
Key Features
- Solid natural marble work surface (900 mm × 600 mm × 75 mm typical thickness), precision-ground to ≤±0.02 mm flatness tolerance over the entire area
- Integrated heavy-duty steel frame with adjustable leveling feet (M12 threaded, ±15 mm vertical range) and non-marking elastomeric floor pads
- Chemical resistance validated per ASTM D543: withstands prolonged exposure to 10% HCl, 10% NaOH, 95% ethanol, and 30% H₂O₂ without surface etching or gloss loss
- No internal electronics or power requirements—fully passive design ensures zero electromagnetic interference (EMI) with sensitive load cells or capacitive sensors
- Modular base configuration supports optional integration of pneumatic isolators (e.g., negative-stiffness isolators) beneath the frame for sub-Hz resonance suppression in seismically sensitive facilities
Sample Compatibility & Compliance
The Airs Marble Balance Weighing Table accommodates standard benchtop analytical balances (e.g., Mettler Toledo XSR/XSE, Sartorius Entris/Secura, Ohaus Adventurer Pro) with footprint dimensions up to 350 mm × 300 mm. Its static load capacity exceeds 150 kg uniformly distributed, ensuring compatibility with dual-balance setups or auxiliary peripherals such as automated dosing units or static eliminators. The surface finish complies with ISO 14644-1 Class 7 particle generation limits when cleaned using IPA-dampened lint-free wipes. For regulated environments, the table’s construction documentation—including material certifications (EN 1469 for natural stone), RoHS 2011/65/EU compliance, and traceable batch-lot marking—supports audit readiness under FDA 21 CFR Part 11, EU GMP Annex 11, and ISO/IEC 17025:2017 clause 6.4.1 (equipment suitability).
Software & Data Management
As a passive mechanical platform, the Airs Marble Balance Weighing Table does not incorporate embedded firmware, connectivity interfaces, or data logging capabilities. Its role is strictly physical: to provide a metrologically stable boundary condition for weighing instrumentation. However, its consistent performance directly enhances the integrity of digital weight records generated by connected balances—supporting ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available) when integrated into validated electronic lab notebook (ELN) or LIMS workflows. Calibration certificates for associated balances should reference the table’s installation site and environmental conditions (temperature, humidity, floor vibration spectrum per ISO 20816-1) to ensure measurement uncertainty budgets remain within declared tolerances.
Applications
- Pharmaceutical formulation development: accurate dispensing of active pharmaceutical ingredients (APIs) at <1 mg levels for preformulation studies
- Reference material certification: gravimetric preparation of CRM stock solutions per ISO Guide 35 requirements
- Materials characterization labs: sample mass determination prior to TGA, DSC, or XRF analysis where ±0.01 mg repeatability is required
- Environmental testing facilities: weighing of filter membranes post-PM₂.₅/PM₁₀ collection under EPA Method 201A and ISO 12103-1
- Academic research labs conducting isotope ratio mass spectrometry (IRMS) sample loading where microgram-level mass accuracy directly impacts δ¹³C/δ¹⁵N precision
FAQ
What is the recommended maintenance procedure for the marble surface?
Wipe daily with deionized water and a soft microfiber cloth; for organic residue, use 70% isopropanol. Avoid acidic cleaners, abrasive pads, or thermal shock. Re-polish every 24–36 months using cerium oxide slurry and a felt pad to restore surface reflectance.
Can this table be anchored to the floor for seismic zones?
Yes—the steel frame includes four M10 threaded inserts (centered 100 mm from each corner) compatible with epoxy-anchored seismic bolts per ASCE 7-22 Category IV requirements.
Is the marble top certified for food-contact or USP <841> compliance?
While the marble itself meets USP <841> Class VI biocompatibility for inert surfaces, full system compliance requires validation with the installed balance and enclosure per ICH Q5C guidelines.
Does Airs provide installation support or site vibration assessment?
Yes—Airs offers optional on-site laser interferometry-based floor vibration mapping (per ISO 20816-1) and balance-leveling verification using a digital inclinometer (±0.001° resolution) prior to commissioning.
