DFYF-314A Lubricating Grease Roller Stability Tester

– Simulating Shear Conditions for Accurate Mechanical Stability Evaluation

I. Applicable Standard & Application

Strictly conforms to SH/T 0122 (equivalent to ASTM D1831), specifically designed for determining the mechanical stability of lubricating greases in a roller test. By simulating the repeated shear action that grease undergoes in rolling bearings or gearboxes, this instrument evaluates changes in grease consistency, making it a critical tool for grease development, quality control, and batch stability verification.

Widely used in:

Formulation optimization and routine testing of grease manufacturers

Grease performance evaluation in petrochemical research institutes

Third-party testing laboratories for commissioned tests and standard compliance certification

Screening of grease suitability for bearing, automotive parts, and other industries

II. Key Technical Specifications

III. Professional Features

Precise Speed Control
Direct drive via a speed-regulated motor eliminates belt transmission losses, ensuring roller speed is strictly maintained within 165 ± 15 r/min to meet the standard's requirements for shear rate accuracy.

Air Bath Constant Temperature System
Equipped with an air bath heating unit (200 W), the chamber temperature can be stably controlled from ambient to 80°C, simulating the combined effect of thermal aging and shear on greases under real-world conditions, thereby improving test correlation.

Standard Roller Design
The roller is made of stainless steel, with dimensions of 990 × 180 mm and an accurate weight of 5 kg, fully complying with SH/T 0122 specifications for loading mass and contact area, ensuring consistent mechanical conditions for each test.

Compact & Reliable Operation
The instrument features a compact structure and attractive appearance. The roller rotates smoothly with low noise, suitable for long-term continuous operation and easy maintenance.

IV. Testing Principle (Brief)

A specified amount of grease sample is placed into the roller and rotated at the set temperature (ambient to 80 °C) and speed (165 ± 15 r/min) for a defined period (typically 2 hours). After the test, the cone penetration of the grease is measured, and the percentage change in penetration is calculated to evaluate mechanical stability. A smaller change indicates better resistance to shear softening.

V. Company Qualification & Service Guarantee

We are a high-tech enterprise with over ten years of experience in R&D and manufacturing of petroleum testing instruments, and have obtained ISO 9001 quality management system certification. Each instrument undergoes strict calibration and testing from design through production to delivery, ensuring reliable performance and traceable data. We provide:

Equipment installation, commissioning and operation training

Testing method development and standard consulting

Long-term after-sales support and spare parts supply

Why Choose Us
With decades of domain expertise, ISO‑certified processes, and a customer‑oriented service system, we provide not just instruments, but end‑to‑end confidence in your petroleum testing laboratory.

VI. Request Quotations & Technical Documentation

For detailed quotations, complete technical specifications (including drawings and parts list), and standard operating procedures (SOP) , please contact:

�� Sales Email: lovecarlos2000@gmail.com
�� 24/7 Hotline: +86 15941156556

Please indicate [DFYF-314A Inquiry] + Your Company Name in the email subject line. We will respond promptly with professional support.