YJ1 series
- Jan. 2007, Engineer Yu began to develop the bladder sealing technology.
- Oct. 2007, Bladder sealing technology is developed with success. First jack with bladder sealing technology had passed test and was named as YJack.
- Dec. 2007, First actual use for pile load test in Tianjin, China.
- Significance: The new kind of jack with bladder sealing technology was born.
- Jan. 2007, Engineer Yu began to develop the bladder sealing technology.
- Oct. 2007, Bladder sealing technology is developed with success. First jack with bladder sealing technology had passed test and was named as YJack.
- Dec. 2007, First actual use for pile load test in Tianjin, China.
- Significance: The new kind of jack with bladder sealing technology was born.
YJ2 series
- Mar. 2007, Began to develop YJack II (2nd generation) with different mechanism.
- Jun. 2008, YJack II passed the test and was produced in volume.
- Significance: Bladder sealing technology (structure, materials and processing technology) fully upgraded. The technology was simpler and the loading performance was more linear).
- Mar. 2007, Began to develop YJack II (2nd generation) with different mechanism.
- Jun. 2008, YJack II passed the test and was produced in volume.
- Significance: Bladder sealing technology (structure, materials and processing technology) fully upgraded. The technology was simpler and the loading performance was more linear).
Patent
- Jun. 2010, YJack applied for its patent in China.
- Jan. 2011, YJack patent was granted (No. CN201694784U).
- Significance: New bladder sealing technology had been protected in law.
- Jun. 2010, YJack applied for its patent in China.
- Jan. 2011, YJack patent was granted (No. CN201694784U).
- Significance: New bladder sealing technology had been protected in law.
YJ3 series
- Dec. 2010, Began to develop YJack III
- Mar. 2011, YJack III (3rd generation) was produced in volume and launched.
- Significance: Enhanced the rated load capacity upto 30MPa, add to YJ3 series products, offer load support to pile of high-grade concrete.
- Dec. 2010, Began to develop YJack III
- Mar. 2011, YJack III (3rd generation) was produced in volume and launched.
- Significance: Enhanced the rated load capacity upto 30MPa, add to YJ3 series products, offer load support to pile of high-grade concrete.
Y-VI for pile load test
- Jun. 2012, Successfully developed Y-VI and Y-VI for pile load test (Y-VI PLT). The sample passed the test.
- Jul. 2012: Y-VI PLT first actual application of pile load test. Customer evaluated it: developed than similar products for the market.
- Significance: As a professional supplier of pile load test, we are aiming to provide a full set of technical equipments. Y-VI PLT is a new key equipment to load test company.
- Jun. 2012, Successfully developed Y-VI and Y-VI for pile load test (Y-VI PLT). The sample passed the test.
- Jul. 2012: Y-VI PLT first actual application of pile load test. Customer evaluated it: developed than similar products for the market.
- Significance: As a professional supplier of pile load test, we are aiming to provide a full set of technical equipments. Y-VI PLT is a new key equipment to load test company.