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| Brand Name: | Shengtai Instrument |
| Model Number: | SH120 |
| MOQ: | 1 |
| Payment Terms: | T/T |
| Supply Ability: | 100 sets per mouth |
SH120 Automatic four ball machine
The SH120 automatic four ball machine grease abrasion resistance tester is mainly used to assess the bearing capacity of lubricants under extremely high point contact pressure in the form of Sliding friction. This includes three indicators: maximum non jamming load Pb, sintering load Pd, and comprehensive wear value ZMZ. In practical applications, different evaluation indicators can be selected based on different uses of lubricants. The four ball friction testing machine can also perform long-term wear resistance tests on lubricants, measure friction coefficients, and record friction and temperature curves.
Special attachments can also be used to conduct simulation tests on end face friction and materials. The design principle of this machine is based on the loading stability of the lever four ball machine, combined with the loading characteristics of the servo valve. Through the servo motor, air spring, and closed-loop control software, it achieves automatic zero clearing, automatic loading, automatic holding, automatic testing, automatic unloading, automatic measurement of the wear spot diameter and taking photos. With one click operation and data storage, the test speed is fast, with minimal error, good repeatability, no pollution, no noise, and high efficiency.
Compliant with standards
Main technical parameters
| N o | Name | Technical indicators |
| 1 | Test force | |
| 1.1 | Working range of axial test force | 10～10000N |
| 1.2 | relative error of the test force | ±1％ |
| 1.3 | When the test force is long, the indicating error is automatically maintained | ±1％F.S |
| 2 | Friction torque | |
| 2.1 | Range of friction torque measurement | 0～13500N.mm |
| 2.2 | relative error of the friction torque is shown | ±3％ |
| 3 | Spindle speed | |
| 3.1 | Spindle frequency conversion speed range | 10～2000r/min |
| 3.2 | Spindle speed error | ±5r/min |
| 4 | oil box stroke | ＞45mm |
| 5 | Taper of spindle inner hole | 1:7 |
| 6 | Heating system of testing machine | |
| 6.1 | Operating temperature range of heater | At room temperature～250℃ |
| 6.2 | Temperature control accuracy | ≤2℃ |
| 7 | Testing machine spindle control | |
| 7.1 | Time display and control range of testing machine | 1～99999s or 1-99999min |
| 7.2 | Test machine revolution display and control range | 999999999 |
| 7.3 | Maximum torque output of the main motor of the tester | 2.3N.m |
| 8 | Quantity of oil used in a test | about10ml |
| 9 | Special standard steel ball diameter | Ф12.7 |
| 10 | Dimensions of the testing machine | 980×780×1600 |
| 11 | Net weight of testing machine | about550kg |
| 12 | Packaging size | 1070×900×1800 |
| 13 | Packaging weight | 610kg |
| 14 | Rated power of testing machine | 5.5KW |
Packing list
| Category | S/N | Name | Quantity | Remarks |
| Product | 1 | Host | 1set | |
| 2 | Computer (LCD) | 1set | ||
| 3 | Printer | 1 set | Optional configuration | |
| 4 | 15Jspeckle measuring microscope | 1 set | ||
| Attachment | 1 | High temperature wear drop oil tank | 1 set | |
| 2 | Room temperature friction sub-oil tank | 1 set | ||
| 3 | Four-ball special steel ball | 1box | 50 | |
| 4 | Oil retaining ring (high/low temperature) | each1piece | ||
| 5 | Spring chuck | 2 piece | ||
| 6 | Liju wheel | 1 piece | ||
| Tool | 1 | Lifting screw | 4 piece | |
| 2 | Shock cushion iron | 4 piece | ||
| 3 | Medical Tweezers (Medium) | 1 piece | ||
| 4 | Medium lumbar disc | 1 piece | ||
| 5 | Tank wrench (high/low) | each1 piece | ||
| 6 | Tool | 1 set | ||
| 7 | Spring chuck loading and unloading wrench | 1 piece | ||
| 8 | Chuck hammer rod | 1 piece | ||
| Technical condition | 1 | Product instruction manual | 1 copy | |
| 2 | software instruction manual | 1 copy | ||
| 3 | Temperature controller instruction manual | 1 copy | ||
| 4 | Certificate of qualification | 1copy |
