The SPT drive rod are manufactured to connect with the SPT split tube sampler and comply with the BS 1377: Part 9: 1990.
The Rod OD is 54mm with solid 1-1/2" BS whitworth make and female tool joints on each end, Tool joints are friction welded to the rods and have a pair of spanner flats to facilitate handing.
The Automatic Trip Hammer is designed for carrying out the Standard penetration Test (SPT) to BS 1377: Part 9: 1990. SPT Drive Rods and a split Tube Sampler are connected to base of the anvil, and driven into the ground by the falling weight.
The hammer comprises a drop weight of 63.5 kg and a pick-up and selftripping mechanism that ensures the weight has a free fall of exactly 760mm.
The inner shaft acts as a guide on which the weight drops with minimal resistance and strikes the anvil squarely.
The trip hammer is supplied with a Safety retaining bolt to prevent the weight from sliding when the hammer is not in use or during transport.
Forsun Ultra-hard Material Industry Co., Ltd is specialized in manufacturing high quality Drilling Tools and Equipments for Mineral Exploration, Site Investigation, and Water Well Construction etc.
Since the company's foundation in 2001, "FORSUN" has been making great efforts to develop various products to meet the different and changing needs of the drilling industry. Till now, "Forsun" products have been distributed to many countries and regions in the world.
"FORSUN" has excellent skilled staffs and advanced manufacturing technology and equipment. Besides standard products, "FORSUN" also provides special designed products according to clients' drawing and requirements.
"FORSUN" became " Production, Teaching and Researching Base of Central South University" in November, 2008.
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