Changsha Exploration Machinery Factory
Main products:drilling rig
Products
Contact Us
  • 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

SPT(Standard Penetration Tooling), split spoon sampler
Product Detailed
Our rigs can be used for SPT drilling. Please refer to specs in the detailed product description

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



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