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Rock Drilling Bucket

Application: For piling rigs for drilling in dense sand, gravel and rock 

Kelly sections: Kelly bar 2-5 sections 

Type: Interlocking/friction/combined kelly bar 

Size: Diameter range from 355mm-630mm 

Warranty: One year 

Suitable Rigs: Bauer, Soilmec, Liebherr and more...

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Type:Single-bottom/Double-bottom double cut (Single-cut for optional)

Raw Materials:Q355B High International Standard

Kelly Box:Kelly box 130mm, 150mm, 200mm (optional), Patented Design


Applicable Formation: Sand and gravel layer, pebble bed, flagstone, high strength of frozen soil, weathering rock and other complex hard strata.



Rotary rig drilling buckets are usually used with kelly bars together for bored piles drilling construction. The applicable formation include: water-bearing sandy soil, sludge, clay, muddy sub clay, sandy gravel, cobble, and weathered soft formation, etc. The drilling bucket can be designed into cylindrical type and conical type according to bucket diameter, type of drilling rig and soil conditions. The opening and closing device can be operated manually, mechanically or mixed manner. The welding angle of bucket teeth can be designed according to formation conditions.
The bottom plate is made of high-strength Mn plate, and the cutting edge includes single-layer type and double-layer type; The soil inlet also includes single-bottom type and double-bottom type. 



1-Used with rotary drilling rigs together for foundation bore pile drilling.

2-Suitable for very dense sand and gravel stratum, weak rock or stratum up to coarse grave.

3-Double cut rock bucket is also recommended for uncased bores, bigger diameter piles and secant pile walls.

Other kind of drilling bucket can be manufactured as to clients requirement.



1-The raw materials are from top leading raw steel factory, this guarantee the high structural strength of ou drilling bucket.

2-Simple operation, much easier for the operator to do the bored hole drilling job.

3-Hard facing strips for wear protection, high wear resistance.

4-Good roundness of the cylinder, optimize angle of drilling bits, throughout ventilation hole, make JZTG drilling buckets have higher drilling efficiency.

5-High quality carbide bullet teeth, teeth holder and pilot bit RP-4, to ensure that the cutting strength of drilling tools can reach the design requirements.

6-Double support plate unlocking design, enhanced protection block design and so on patent designs.

7-Modern workshop, advanced production equipment, automated robot welding, guarantee higher quality of JZTG drilling tools.

8-Factory direct supply, guarantee factory price and factory timely production and delivery.


Moden of drilling teeth for choose:

Rock Bits: B47K20H, B47K19H, B47K17H, 3050, 3060, 3065, C30, C31HD, B85, B43H, etc. 

Type Model Total& Length
Shell& Length
Shell& Thickness
Fixed& bottom& thickness& (mm) Rotating& Bottom& Thickness& (mm) Teeth& Qty Weight/kg
Double& Cut& Bullet& Teeth& Drilling& Bucket DN600 2100 1200 16 40 50 6 650
DN700 2100 1200 16 40 50 7 730
DN800 2060 1200 20 40 50 8 980
DN900 2060 1200 20 40 50 9 1080
DN1000 2180 1200 20 40 50 14 1260
DN1100 2180 1200 20 40 50 15 1390
DN1200 2180 1200 20 40 50 18 1600
DN1300 2180 1200 20 40 50 19 1740
DN1400 2180 1200 20 40 50 21 1970
DN1500 2180 1200 20 40 50 22 2150
DN1600 2180 1200 20 40 50 23 2420
DN1800 1980 1000 20 40 50 27 2870
DN2000 1980 1000 25 40 50 29 3570
DN2200 1780 800 25 40 50 31 4220
DN2500 1780 800 25 40 50 35 5040

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