Engineering Surveying Tools in-Situ Standard Penetration Test Tools with Donut Hammer

• After-sales Service: Available
• Warranty: Available
• Certification: ISO 9001:2000
• Model NO.: SPT
• Condition: New
• Drill Hole Diameter: 380mm
• Drill Hole Depth: <6m
• Bit Type: Cone Bit
• Drilling Way: Impactor
• Type: Manually
• Transport Package: Wooden Case
• Specification: 63.5kg
• Trademark: BOHWA
• Origin: China
• HS Code: 8207509000
• Production Capacity: 200 Set/Month

Product Description

Engineering Surveying Tools
In-situ Standard Penetration Test Tools with Donut Hammer (63.5kg)

Descriptions:
The standard penetration test is still one of the types of dynamic penetrators.
The difference is that the probe is not a round chase probe, but a standard cylindrical probe (a soil extractor composed of two semicircular tubes). Called the penetrator (split barrel). Therefore, the standard penetration test is to use a certain kinetic energy of hammering to drive a certain specification of split tube penetrator into the soil at the bottom of the borehole, and evaluate the soil based on the penetration resistance in the penetrated soil. The changes and the physical and mechanical properties of the soil. Penetration resistance is expressed by the number of hammers N63.5 of 30 cm penetrated by the penetrator into the soil, also known as the number of penetration hammers.

Specification:

SPT Hammer	Hammer Weight	63.5kg
	Falling Distance	76mm
Split Barrel	Length	500mm
	O.D.	51mm
	I.D.	35mm
Cutting Shoe	Length	76mm
	Angle	18-20°
	Cutiting Edge Thickness	2.5mm
Tail Rod	Dia.	42mm