Brookfield SC4 Series Spindles and Sample Chambers for DVNext and RV/HA/HB Viscometers
| Brand | Brookfield |
|---|---|
| Origin | USA |
| Model | SC4-18, SC4-31, SC4-34, SC4-16, SC4-25Z, KU-1030, KU-1031, T-A–T-F, SA-70, SSA, BTU-18Y, SC4-DSY, SC4-13RPY, SC4-13RD, SC4-27SD, SC4-27 Link Hanging Assembly |
| Shear Rate Range | Instrument-dependent (DVNext/RV series) |
| Torque Range | 0.28–1.32 N·cm |
| Sample Volume | 4.2–9.4 mL |
| Material | 316 Stainless Steel (standard), Anodized Aluminum (select spindles) |
| Compliance | ASTM D1200, ISO 2555, ISO 3219, USP <911>, GLP-ready with audit-trail-capable software |
Overview
The Brookfield SC4 Series spindles and sample chambers constitute a modular, precision-engineered accessory system designed exclusively for use with Brookfield’s DVNext Advanced Rotational Viscometers and legacy RV/HA/HB series instruments. These components operate on the principle of controlled rotational shear within a defined gap geometry—typically Couette or cone-and-plate flow—to quantify dynamic viscosity, yield stress, and flow behavior under standardized test conditions. Each spindle is calibrated to deliver traceable torque response across a defined shear rate spectrum, enabling reproducible rheological characterization of Newtonian and non-Newtonian fluids—including paints, adhesives, pharmaceutical suspensions, food emulsions, and polymer melts. The SC4 platform supports both standard and disposable configurations, ensuring compatibility with regulated environments where cross-contamination control and method validation are critical.
Key Features
- Interchangeable spindle architecture compliant with Brookfield’s universal quick-connect interface (SC4 thread specification)
- Traceable calibration certificates available per ASTM E29 and ISO/IEC 17025 requirements
- Stainless steel (316 SS) construction for chemical resistance and long-term dimensional stability
- Optimized geometry for minimal wall-slip effects in high-viscosity or particulate-laden samples
- Integrated temperature probe ports on select sample chambers (e.g., SSA, SA-70) for real-time thermal monitoring
- Disposal-ready options (SC4-DSY chuck/closer + SC4-27D spindles) supporting FDA 21 CFR Part 11–aligned workflows
- Shear rate calculators embedded in Brookfield Rheo3000 and PC-based WinCT software for automatic parameter derivation
Sample Compatibility & Compliance
The SC4 series accommodates a broad range of sample types—from low-viscosity solvents (≥1 mPa·s) to structured pastes exceeding 10⁶ mPa·s—when paired with appropriate instrument torque ranges and speed settings. Spindle selection follows ISO 2555 guidance for representative shear history simulation; e.g., KU-1030 paste spindles comply with Krebs Units (KU) reporting per ASTM D562, while T-bar (KU-1031) and spiral adapter (BTU-18Y) geometries enable measurement of thixotropic breakdown under controlled shear ramping. All metallic components meet RoHS Directive 2011/65/EU and are compatible with GLP/GMP laboratory practices. Documentation packages include material certifications, surface finish reports (Ra ≤ 0.8 µm), and dimensional inspection records aligned with ASME B46.1 surface texture standards.
Software & Data Management
SC4 accessories integrate natively with Brookfield’s Rheo3000 firmware and WinCT v4.x software suite. Calibration data, spindle identification codes, and geometry-specific constants are auto-loaded via RFID-enabled spindle tags (optional on SC4-13RPY/SC4-13RD). Software enforces method locking, electronic signature capture, and full audit trails per FDA 21 CFR Part 11 requirements. Export formats include CSV, PDF (with embedded metadata), and XML for LIMS integration. Batch testing protocols support automated sequence execution across multiple SC4 configurations—enabling comparative analysis of yield point shifts, hysteresis loops, or time-dependent recovery behavior without manual recalibration.
Applications
- Quality control of architectural coatings using SC4-31 and KU-1030 per ASTM D2196
- Rheological profiling of topical pharmaceutical gels with SSA small-volume chamber (4.2 mL minimum)
- Yield stress determination of lithium grease via T-bar spindle (KU-1031) and T-A–T-F weight assembly
- High-shear viscosity mapping of battery electrode slurries using SA-70 spiral adapter and BTU-18Y
- Stability assessment of dairy-based beverages through time-sweep tests with SC4-25Z at 25°C ± 0.1°C
- Regulatory submission support for USP <911> viscosity testing in oral suspensions using SC4-18 in DVNext mode
FAQ
Are SC4 spindles compatible with older Brookfield viscometers such as the LV/DV-I+?
Yes—mechanical compatibility extends to all instruments using the standard SC4 thread mount (RV, HA, HB, DV-I+, DV-II+, DV-III, and DVNext platforms). However, advanced features like auto-spindle recognition require DVNext or Rheo3000 firmware.
Can I use SC4 disposable spindles in GMP manufacturing environments?
Absolutely. SC4-27D disposable spindles, paired with SC4-DSY chuck/closer and SC4-27 Link Hanging Assembly, eliminate cleaning validation steps and support fully documented, single-use protocols compliant with Annex 11 and EU GMP guidelines.
How do I verify spindle calibration validity between scheduled intervals?
Perform daily verification using Brookfield-certified silicone oil standards (e.g., CS-1000, CS-5000) and validate torque linearity per ISO 17025 clause 5.10. Calibration certificates include uncertainty budgets at 95% confidence level.
Is thermal expansion accounted for in SC4 geometry specifications?
Yes—dimensional tolerances (±0.01 mm) are specified at 23°C per ISO 1:2016, and all torque constants assume thermal equilibrium at operating temperature. Optional Peltier-controlled sample chambers (e.g., TC-602) maintain ±0.05°C stability during extended tests.
