Eijkelkamp 04.29 Free-fall corer - ຊຸດມາດຕະຖານ (standard set, > 30 m)

Applications

Environmental research 

Sediment sampling at greater depth 

Both for fresh water and marine applications

Specifications

Free-fall corer - standard set

Maximum sample depth: > 30 m

Product material: Iron, PVC, other material

Rod or cable operated: Cable

Sample specification: Semi-disturbed

Sample diameter: 66 mm

Sample length: 999 mm

Sample stored in: Sample tube

Sample volume: 3.5 l

Sampler position: Vertical

Package size: 118 x 45 x 62 cm

Weight: 47 kg

Description

The free-fall corer consists of a frame, falling weight and sampler. The sampler is especially designed to take samples at greater depths (>30 metres). By using a hoist unit (davit) on board of a boat, the sampler is lowered in free fall. By its own weight and obtained velocity, the apparatus will penetrate the submerged soil. 

Semi-disturbed samples can be obtained from the top layer of submerged sediments. The depth of penetration is partly determined by the composition of the material. If the bottom is rich of mud, penetration will reach about 80 centimetres; in more sandy material it will be about 30 centimetres. The system is fitted with a non-return valve at the top of the sampler so that no water remains floating above the sample. This ensures that the sample remains in place.

The Free-fall corer is not suitable for rocky bottoms, and unconsolidated materials will not hold. 

Set contains

Free-fall frame with sample tube support system 

Sample tubes with cutting shoe (10 pieces)

Please note that an installation is required for hoisting and lifting.