Introduction

A petroleum dropping point tester is an instrument used to measure the dropping point of the lubricating greases, which is the temperature at which the grease becomes sufficiently fluid to drop from the test cup, and it is used in the petroleum, the lubricant, and the quality control industries. The dropping point indicates the upper temperature limit of the usefulness of the grease, and it is measured by the heating of the grease sample in a test cup at a controlled rate and the observation of the first drop of the material, following the standard test methods, such as the ASTM and the ISO standards; the petroleum dropping point tester consists of a heating system, a temperature control and a measurement system, the test cup and the assembly, and the observation, and it provides the dropping point, with features such as the digital temperature display and the automated detection; the petroleum dropping point tester is used for the measurement of the dropping point of the greases, for the assessment of the temperature resistance, for the quality control, for the product development, and for many other applications, and it is an essential instrument for the grease testing. Petroleum dropping point testers are used in the petroleum industry, in the lubricant industry, in the laboratories, in the quality control, and for many other applications. With their dropping point measurement, petroleum dropping point testers are essential for the grease quality control.

High Temperature Dropping Point Tester T-S220DRT

High Temperature Dropping Point Tester T-S220DRT


High temperature dropping point tester is an automatic unit with high power heating module for stable operation. Touch screen operating panel makes it easier for convenient use. Conforms ...
Dropping Point Tester T-S210DRT

Dropping Point Tester T-S210DRT


Dropping Point Tester operates within temperatures of 400 °C for accurate drop point analysis of various lubricants and greases. It allows precise temperature control at 121℃, 232℃, 28...
Dropping Point Tester T-S211DRT

Dropping Point Tester T-S211DRT


Dropping point tester is a tabletop unit with stepless voltage regulation. The unit provides simultaneous dual sample testing to improve workflow efficiency. Conforms to ASTM D566 standar...

Standards

ISO 2176:1995-Petroleum products-Lubricating grease-Determination of dropping point

ASTM D566-17-Standard Test Method for Dropping Point of Lubricating Grease

Complies with the above standards, but is not limited to them.

Features

1. Determines dropping point of lubricating greases and waxes by standardized heating method.

2. Precision temperature-controlled bath with uniform heating for reproducible dropping point measurement.

3. Suitable for lubricating grease quality control, formulation evaluation and product certification.

4. Includes grease cups, test tubes, thermometer and bath for complete test setup.

5. Digital temperature control with programmable heating rate for standardized testing.

FAQ

Q1: What testing scenarios is this instrument mainly applied to?

A: The petroleum dropping point tester is used in lubricant manufacturing, petroleum laboratories and third-party testing organizations to determine the dropping point of lubricating greases, waxes and similar materials. It supports grease formulation evaluation, product specification compliance, quality control and research on thickener type and concentration. The dropping point is the temperature at which a grease loses its semisolid consistency and begins to drip, indicating the upper temperature limit for grease application. It is a critical quality parameter for selecting greases for high-temperature applications such as automotive wheel bearings, industrial machinery and aerospace components where grease must maintain structural integrity under operating heat.

Q2: What standards does the instrument comply with?

A: The test method follows ASTM D566 for dropping point of lubricating grease, ISO 2176 for petroleum products dropping point, and the corresponding GB/T 4929 method. The instrument hardware complies with relevant laboratory electrical safety standards. Grease cup dimensions and heating rate should follow the standard specification.

Q3: What is the warranty period for the whole machine and key components?

A: The bath and controller are covered by a 12-month warranty. Grease cups, test tubes and thermometers are consumables excluded from warranty. Damage from overheating, improper sample loading or unauthorized repair is excluded.

Q4: Is this device difficult to operate? Is professional training required?

A: Operation requires trained laboratory personnel familiar with grease testing and the standard method. We provide an operation manual and remote guidance. Proper sample preparation, cup filling and temperature observation are important for accurate dropping point determination.

Q5: What is the typical lead-time for order delivery?

A: Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.

Q6: Is regular calibration required? What is the recommended calibration cycle?

A: Bath temperature calibration against a reference thermometer is recommended every 6-12 months. Heating rate verification should be performed periodically. Full method verification with a reference grease is recommended for accredited laboratories.

Q7: Are supporting consumables universal?

A: Grease cups, test tubes and thermometers are available from laboratory suppliers, though dimensions should match the standard method. Long-term consumable cost is low.

Q8: Can I customize parameters or supporting accessories?

A: Customization includes bath capacity, maximum temperature and number of test positions. Additional grease cup sets and accessories can be ordered separately. Custom orders extend delivery lead-time.

Q9: Does the purchase include on-site installation and commissioning service?

A: Standard delivery includes the bath, grease cups and accessories with an operation manual. Remote commissioning guidance is provided. On-site service is not included for standard orders.

Q10: What types of samples are compatible with this equipment?

A: The tester handles lubricating greases, waxes and similar semisolid materials within the method temperature range. Samples should be homogeneous and free of contamination. Greases with solid additives or fillers may require special attention during sample preparation. Users should follow the standard method for cup filling, heating rate and dropping point observation.

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