Dropping Point Tester LDPT-T2010

Introduction

Dropping Point Tester is an oil bath-type unit that holds a capacity of 600 ml. It consists of a tubular heater with continuously adjustable heating power. A glass test tube and a thermometer are equipped within the tester. Enhanced with a temperature controller for uniform temperature distribution within the oil bath. Our tester is designed and manufactured according to the D566 Standard Test Method for Dropping Point of Lubricating Grease.

This petroleum testing is designed to meet the rigorous requirements of modern laboratory operations, ensuring high precision, reliability, and ease of use for various experimental applications.

Applications

Dropping Point Tester is used to determine the temperature at which a lubricating grease transitions from a semi-solid to a liquid state. This tester is essential in quality control and formulation development for industries like oil and petroleum, chemical, scientific research, etc.

Specifications

Type	Oil bath
Capacity	600 ml beaker
Grease cup Material	chrome-plated brass
Grease cup inner diameter	9.92 mm
Orifice diameter	2.8 mm
Cup Height	12 mm
Test tube Material	heat-resistant glass with a rim
Test tube inner diameter	11.1 mm to 12.7 mm
Indentations quantity	3
Indentations Size	19 mm
Thermometer Temperature Range	-5℃ to 300 ℃
Accuracy	1 ℃
Thermometer length	390 mm
depth	76 mm
Heater	Tubular
Heater Power	800 W
Stirring motor speed	60
Ambient temperature	-10℃ to +40 ℃
Relative humidity	≤ 85%
Maximum power consumption	900 W
Dimension	350 × 180 × 410mm
Weight	8 Kg

Features

Heat-resistant beaker

High-quality heater

High-speed electric motor

Easy to operate

Desktop structure

FAQs

1. What kind of samples can be tested with this Dropping Point Tester ?

The Dropping Point Tester is primarily used to test lubricating greases of various consistencies. It is suitable for petroleum-based, synthetic, and specialty greases used in industrial and automotive applications. The standard grease cup and glass tube dimensions allow it to handle most grease samples without requiring customization. However, it is not intended for waxes, oils, or pastes outside of grease specifications.

2. How many samples can be tested at once with the Dropping Point Tester ?

The Dropping Point Tester allows testing of up to three grease samples at a time using three sample indentations. This parallel testing capability helps improve productivity and reduces total test time in high-throughput environments. Each sample is placed in a dedicated test tube and observed individually during the test. This setup is ideal for comparative testing or processing multiple batches efficiently.

3. How is the dropping point determined using the Dropping Point Tester ?

Dropping Point Tester determines the dropping point by heating the grease sample in a standardized cup until it liquefies and a drop falls from the orifice. The temperature at which this first drop falls is recorded as the dropping point. It uses an oil bath to provide controlled and uniform heating throughout the test. A built-in thermometer ensures accurate temperature measurement, while visual observation helps identify the exact moment the drop occurs.

4. How often should Dropping Point Tester be calibrated?

Dropping Point Tester should be calibrated every 6 to 12 months, depending on the frequency of use. Regular calibration ensures continued accuracy, especially in critical quality control or high-use environments. A certified thermometer can be used to verify the instrument’s temperature readings. Keeping a consistent calibration schedule helps maintain reliable test results over time.

5. What should I do if the drop does not fall during the test on the Dropping Point Tester ?

The Dropping Point Tester may not produce a drop if there is incorrect sample preparation, impurities in the grease, or insufficient heating. Ensure the grease is properly packed in the cup, the orifice is clear, and the heater is working correctly. Repeating the test with a new sample and checking the oil bath temperature can help resolve the issue. If the problem continues, refer to the troubleshooting section of the user manual for guidance.

6. Are there any special precautions when handling the heated oil bath on the Dropping Point Tester ?

Dropping Point Tester requires caution when operating or cleaning the oil bath. Always allow the unit to cool completely before changing the oil or handling internal parts. Use heat-resistant gloves and avoid overfilling the oil bath to prevent splashing or spillage. Dispose of used oil safely according to local regulations, and routinely check for any signs of leaks or oil degradation.