1.10 years manufacturing experience of drill bits;

2. Powerful technology support and mature manufacturing experience;

3. Strict quality control before delivering;

4. 24 hours online service;

5. We can provide customized products with special requirements.

6. We can supply FORM E if you need.

We offer multiple solutions for retrieving core samples.

The core lifter assembly includes three key parts that allow you to firmly grip the core sample so that it can be broken and brought to the surface. The correct gap between the core lifter, the core lifter case and the stop ring is essential– using the same supplier for all three parts is strongly recommended and will ensure optimal performance.

Core lifter case
The core lifter case is essential when it is time to break the core sample. Its tapered interior prevents the core lifter from moving and allows it to keep its grip on the core sample.

Core lifter
The core lifter is one of the most important parts for core recovery. The inside of the lifter comes in two styles, slotted and fluted (also known as broached), to ensure a good grip regardless of the ground conditions. A core lifter that is slotted is good for competent soil whereas a fluted core lifter provides better recovery in fractured ground.

Stop ring
This ring ensures that the core lifter stays in the core lifter case. It is easily inserted into the grooved space provided in the core lifter case.

Specifications: 

1. Wireline Core barrel Fluted core lifter
2. High quality and long life service
3. Professional production
4. Whole-set drilling tools
5. Longer lifetime
6. Electroplated Diamonds on inside

USE:

Drill soft to hard rock, widely used in all kinds of drillings for prospecting, water and electricity building and construction industry of road, railway, bridge and building taking out core to examine stake, etc.

Features:

1. Available in all standard drilling sizes
2. Hardened alloy as raw material,it can serve in a long lifespan
3. Core lifters are divided into slotted  and fluted .They have the advantages of good springness and

long life.

4. Our company produces all kinds of core lifters ,which have the merits of good springness and long

life. The core lifter pedestal experiences salt bath quenching which makes it good stability.     

The drilling fluid circuit operates within the available annular area provided.More specifically, after

travelling through the drill rods, the fluid enters the core barrel.

There it is channelled between the inner and outer tubes, exiting via the throat of the diamond bit, and

back out between the outer tube and bore the whole wall to the collar .

At the bit end of the inner tube, core lifter case adjustment and core lifter selection are of great

importance. The core lifter case needs to be placed close enough to the throat of the bit to allow for

efficient core breakage, but undesirable increase in fluid pressure and/or sample washing from the

drilling fluid.

By design, the tapered core lifter slides along the inside of the core lifter case, wedging and securing

itself onto the core during core recovery and breaking.