Wadegati

ROLL STABILITY (Bench Top 4 Place Model)

ASTM D1831

Designed to subject lubricating greases to shear stresses similar to ball and roller bearing service conditions. A grease sample is worked by stainless steel rollers rotating in corrosion‑proof cylinders at a controlled temperature; penetration before and after rolling is then compared to assess mechanical (roll) stability.

Key Features

  • Dual Adjustable Speeds: Infinitely selectable 10 to 165 RPM via speed regulator (digital RPM display) – run low or high shear profiles.

  • Automatic Test Control: Electronic pre‑set timer with audible alarm; stops rotation & heating at end of cycle.

  • Safety Interlock: Motor, fan & heater cut off automatically when lid is opened.

  • Precision Temperature System: Air‑circulated, digitally controlled bath from Ambient to 165°C ±1°C for uniform sample heating.

  • Robust Test Capacity: 4 corrosion‑proof stainless steel roll test cylinders each with stainless steel roller.

  • Repeatable Results: Stable speed, uniform temperature and timed cycles minimize operator variability.

  • Power Supply: 230 V, 50 Hz, 1 Phase.

 Technical Highlights

Parameter Specification
Speed Range 10 – 165 RPM (digital indication)
Temperature Range Ambient to 165°C (±1°C)
Cylinders / Rollers 4 × stainless steel assemblies
Timer Electronic, pre‑set with alarm & auto shutoff
Safety Lid interlock (motor/fan/heater stop)
Power 230 V, 50 Hz, 1 Phase

 Typical Uses

  • Roll / mechanical stability studies of lubricating greases

  • R&D formulation screening (shear degradation vs penetration change)

  • Quality control benchmarking for production batches

  • Comparative evaluation of thickener system resilience


⭐ Benefits

  • Dual-speed flexibility (low vs high shear in one instrument)

  • Consistent, repeatable shear environment improves data confidence

  • Integrated safety & auto shutoff reduces operator risk

  • Compact, corrosion‑resistant construction lowers maintenance

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