High Temperature Dropping Point Apparatus

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Brand: Koehler Instruments

Category: Petroleum Apparatus

Industry: Material Science & Chemistry, Petroleum & Petrochemicals

The High Temperature Dropping Point Apparatus is a microprocessor-controlled analytical system designed for the determination of dropping points of lubricating greases at elevated temperatures up to 400°C (752°F).

Conforming to ASTM D2265, D4950, and related international standards, this apparatus uses a thermostatically controlled aluminium block oven with six-sample testing capability, ensuring precise, repeatable, and operator-independent testing.

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The High Temperature Dropping Point Apparatus determines the temperature at which a grease sample transitions from a semi-solid to a liquid state using a constant-temperature aluminium block oven. Unlike conventional dropping point methods, the ASTM D2265 procedure permits higher test temperatures and eliminates operator-controlled heating, providing consistent and reliable results for high-performance lubricants.

The apparatus features a six-place aluminium block oven with large viewing ports and fluorescent back-lighting for excellent visibility. Microprocessor PID control ensures rapid temperature stabilization with minimal overshoot, while the over-temperature protection circuit interrupts power if the block exceeds the programmed cutoff.

Dual LED displays provide real-time actual and setpoint temperature readings in °C/°F, and optional communication software (RS232, ramp-to-set, and advanced features) enhances lab integration and automated data capture.

With chemical-resistant polyurethane finish, insulated cabinet, and precision dropping point assemblies, the system provides high-accuracy measurements with ±0.5°C stability, ideal for grease manufacturers, QA laboratories, and R&D facilities

Conforms to ASTM D2265 and ASTM D4950 standards
Measures dropping points of lubricating greases up to 400°C (752°F)
Six-sample aluminium block oven with large viewing ports and fluorescent back-lighting
Microprocessor PID temperature control for fast stabilization and ±0.5°C accuracy
Over-temperature protection circuit ensures safe operation
Dual LED display for actual and setpoint temperature (°C/°F)
Operator-independent heating for reproducible results
Insulated cabinet with chemical-resistant polyurethane finish
Optional communications software and ramp-to-set functions available
Complete dropping point assemblies included for six samples

High-temperature precision, simplified.
The High Temperature Dropping Point Apparatus delivers reliable, operator-independent measurements of grease thermal limits up to 400°C (752°F).
With microprocessor PID control, six-sample capacity, and aluminium block oven design, it is the ideal choice for petroleum labs, lubricant QA departments, and R&D teams, ensuring reproducible, high-accuracy results every time.

Parameter	Specification
Conformance Standards	ASTM D2265, ASTM D4950
Maximum Temperature	400°C (752°F)
Temperature Control	Microprocessor PID, ±0.5°C (±1°F)
Sample Capacity	Six dropping point assemblies
Electrical Requirements	115V 60Hz, Single Phase, 6.5A; 220–240V 50/60Hz, Single Phase, 3.4A
Construction Material	Aluminium block oven, stainless steel and brass assemblies
Safety Features	Over-temperature protection circuit
Display	Dual LED (actual/setpoint °C/°F)
Optional Features	RS232 communication, ramp-to-set, microprocessor software integrations

Parameter	Specification
Dimension (L×W×H)	11 ½ × 9 × 14 in (29 × 23 × 36 cm)
Net Weight	24 ½ lb (11.1 kg)
Shipping Weight	31 lb (14.1 kg)
Shipping Volume	2.6 cu. ft.

Determination of high-temperature dropping points of lubricating greases
Thermal performance evaluation of industrial and automotive greases
Quality control in grease production and formulation verification
Research and development in tribology and high-temperature lubrication
Compliance verification for ASTM D2265 and D4950
Testing of high-performance and specialty greases used in heavy machinery, automotive, and aerospace applications

High Temperature Dropping Point Apparatus