SH0338B Automatic Low‑Temperature Torque Tester for Lubricating Grease

For ball‑bearing lubricating grease, low‑temperature performance directly decides whether the grease can work reliably under cold operating conditions below ‑20 ℃. If the starting and running torque cannot meet specification requirements, bearings may suffer from difficult startup, excessive friction or premature wear.

Many laboratory users struggle with common pain points: slow cooling speed, unstable temperature control, inaccurate torque reading, complicated manual recording and non‑standard result output. The automatic low‑temperature torque tester for lubricating grease is developed to solve these laboratory‑level testing challenges and fully comply with SH/T0338‑92 industry test requirements.

This tester applies Danfoss dual‑compressor refrigeration solution. It removes the requirement for circulating cooling water and relies on a condenser for heat dissipation. Users only need to connect the power supply to activate the cooling cycle. Combined with squirrel‑cage fan blade internal circulation, the chamber can reach target low‑temperature rapidly. Its working temperature spans from ambient temperature down to ‑70 ℃.

The low‑temperature chamber features optimized sealing construction. Good air‑tightness stabilizes the internal micro‑environment and maintains constant test temperature throughout the whole testing cycle, avoiding temperature drift that distorts final torque data.

Temperature control is critical for low‑torque grease measurement. The unit is equipped with a Japanese Fuji high‑precision PID temperature‑control module and Pt100 temperature sensor.

• Sensitive temperature response
• High resolution
• Strong anti‑interference capability
• Temperature‑control accuracy reaches ±0.1 ℃
• Extended service lifetime

A 50 N high‑precision built‑in tension sensor (embedded structure same as imported instruments) undertakes torque detection.

• Wide measuring range
• Multiple reset functions: power‑on reset, startup reset and manual reset to secure test accuracy
• Test result directly outputs in mN·m with automatic unit conversion, data storage and print‑out
• Supplied with standard calibration weights for regular sensor calibration
• Excellent repeatability and durability, low failure risk

Whole‑process automation is realized by Delta PLC, paired with a Weilun 7‑inch high‑definition full‑color touch screen. Operators can set test parameters and view real‑time data on the visual interface. An embedded Xunpu printer supports automatic hard‑copy output of test records for laboratory filing.

With compact mechanical layout and clean appearance, this instrument is well‑suited for routine operation inside material‑testing laboratories. It automatically captures both starting torque and operating torque of lubricating grease, completes data recording and printing without heavy manual intervention.

• 1 × thermometer (‑80 ~ 60 ℃)
• 2 × 204 test bearings

It meets the SH/T0338‑92 standard, dedicated for low‑temperature torque measurement of ball‑bearing lubricating grease below ‑20 ℃.

No. The dual‑compressor system uses condenser heat dissipation. Simply connect AC220V power supply for cooling.

Yes. Standard calibration weights are delivered together with the instrument, supporting regular on‑site sensor calibration.

Yes. Starting torque and operating torque data will be auto‑saved, converted to mN·m and printed by the embedded printer.