- Contact Person : Ms. Guo Nancy
- Company Name : Changsha Exploration Machinery Factory
- Tel : 86-731-84070712
- Address : Hunan,changsha,No.5 Panpan road Xinsha Changsha
- Country/Region : China
- Zip : 410100
SPT(Standard Penetration Tooling), split spoon sampler
Related Product Searches:SPT(Standard Penetration Tooling), split spoon sampler,High Quality,spt test, soil investigation,SPT
Equipment | Specs | Precision | |
Split Barrel Sampler | Split Tube | O.D. 51mm I. D. 35mm | O.D. +/- 1mm I. D. +/- 1mm Roughness 3.2 Ellipticity 0.08mm Concentricity 0.05mm |
Length >500mm | - | ||
Open Shoe | Length 50-76mm Blade Edge Thickness: 2.5mm Blade taper: 18°-20° | - | |
Donut Hammer | Weight 63.5kg | +/-0.5kg | |
Guiding Tube | Falling Distance 76cm | +/-2cm | |
Drill Rods | Diameter 42mm | Bending allowance,<=1/1000 | |
Standards Comparison of different countries
Country | China | British | America | |
Specification | (GB 50021) | BS 1377 | ASTM D1586 | |
Drill Rods | Dia(mm) | 42 | 41.3 54.1 | 41.2 48.4 |
Donut Hammer | Weight(kg) | 63.5 | 63.5 | 63.5 |
Falling Distance(cm) | 76 | 76 | 76 | |
Drive Shoe | Length(mm) | 50-76 | 50 | 20-50 |
Blade Taper | 18-20 | 17-18 | 16-23 | |
Blade Thickness | 2.5 | 1.6 | 2.54 | |
Tube Dimension | O.D(mm) | 51 | 50 | 50.8 |
I.D(mm) | 35 | 35 | 34.94 | |
Length(mm) | >500 | 680 | 685.8 | |
Penetration Depth | Pre-Penetration Depth(cm) | 15 | 15 | 15 |
Nominal Penetration(cm) | 30 | 30 | 30 | |
Record Interval(mm) | 100 | 75 | 150 | |
If not reach the nominal penetration depth | Record 50 blow counts if not reach 30cm | Record 50 blow counts penetration distance | Record 100 blow counts if not reach 30cm | |
ASTM and Chinese Standards for determine the soil density
Density | N | |||
ASTM | China | ASTM | China(water resources) | China(Metallurgy) |
Very loose soft | Loose and soft | 0-4 | ≤10 | ≤10 |
Loose Soft | 4-10 | |||
Low Density | Low Density | 10-15 | 10-30 | 10-15 |
Medium Density | Medium Density | 15-30 | 15-30 | |
Density | Density | 30-50 | 30-50 | ≥50 |
Tight Density | ≥50 | ≥50 | ||
Changsha exploration machinery factory has enriched experience in designing, manufacturing and selling geo-exploration equipments and toolings.
Our professional customer support will give you the advice of what model of machines and toolings you will need for your drilling requirements. Please just tell us your drilling specifications, we shall respond quickly to your enquiry and ensure your utmost satisfaction in the afterwards purchasing and after sales service
SPT(Standard Penetration Tooling), split spoon sampler
