Computer Control Servo Four Ball Friction Testing Machine For Refrigeration Engine Oil ASTM D2783

SH120 Automatic four ball machine

SH120 Fully Automatic Four-Ball Machine Lubricant Wear Resistance Tester evaluates the load-carrying capacity of lubricants primarily through sliding friction under extremely high point contact pressure conditions. It includes three key indicators: maximum load without seizure (Pb), scuffing load (Pd), and comprehensive wear value (ZMZ). In practical applications, different evaluation indicators can be selected based on the various uses of lubricants. This four-ball friction tester can also conduct long-term wear resistance tests for lubricants, measure friction coefficients, and record friction force and temperature curves.

With the use of special attachments, it is also possible to conduct simulation tests for end-face wear and material performance. The machine's design principle incorporates the loading stability of the lever-type four-ball machine while integrating the characteristics of servo valve loading. Through a servo motor, air spring, and closed-loop control software, it achieves automatic zeroing, loading, holding, testing, unloading, measurement of wear scar diameter, and photography with a single button operation. Data storage is also one-click, enabling fast testing speeds, minimal error, excellent repeatability, pollution-free operation, noise-free performance, and high efficiency.

● GB/T 12583-98, Determination of Extreme Pressure Performance of Lubricants (Four-Ball Method);

● GB 3142-2019, Method for Determination of Load Capacity of Lubricants (Four-Ball Method);

● SH/T 0189-2017, Method for Determination of Wear Resistance of Lubricating Oil (Four-Ball Machine Method);

● SH/T 0202-92, Test Method for Extreme Pressure Performance of Lubricating Grease (Four-Ball Method);

● SH/T 0204-92, Test Method for Wear Resistance of Lubricating Grease (Four-Ball Machine Method).

● ZBE34007-87 (Four-Ball Wear Test Method)

Lubricity (Four-Ball Machine): GB/T 3142, ASTM D2783, DIN 51350, JIS K2519, IP 239, USSR 9490-75. ASTM D2596, ASTM D2783, ASTM D2266, ASTM D4172

Extreme pressure (Four-ball): GB/T 12583, ASTM D2783, DIN 51350, JIS K2519, IP 239.

Wear (Four-ball): SH/T 0189, ASTM D4172, DIN 51350.

Main Technical Parameters

Note: The appearance pictures, dimensions, volume and weight of the instrument are for reference only. If there are any updates to the instrument, they may be slight changes without prior notice.

Accessories

Instrument Quality Assurance Certificate

Shandong Shengtai Instrument Co., Ltd. provides the following quality assurance for the instruments sold to you:

----The provided instrument materials are brand new, meet quality standards, and have a manufacturer's certificate of conformity;

----The materials and main components provided meet the technical requirements specified in the technical documentation;

----The overall quality assurance period of the equipment is one year (excluding normal wear and tear of vulnerable parts).

----We are responsible for free maintenance of any instrument quality issues that occur during the warranty period. Due to equipment malfunction caused by the user's responsibility, we are responsible for repairing and charging reasonable fees.

----Lifetime discounted supply of parts for equipment, and lifetime maintenance and repair of the entire machine.

----After the expiration of the warranty period, if the user needs maintenance and technical services, we will only charge a cost fee.

Packaging and Delivery

1. Goods packaging: standard wooden or cardboard boxes.

2. Internal packaging: Elastic pearl cotton packaging product, hardwood board+strong bandage to fix corners.