Gold Member Since 2014
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Xiamen Prodrill Equipment Co., Ltd.

Drill Rod, Drill Steel, Rock Drill Rod manufacturer / supplier in China, offering 800mm-1200mm Length Drill Rod with Taper or Thread for Stone, Crackmax 45MPa Non Explosive Blasting Chemical, 4-8hours Splitting Stone Soundless Cracking Agent and so on.

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800mm-1200mm Length Drill Rod with Taper or Thread for Stone

Purchase Qty.:
10-99 100-499 500+
FOB Unit Price: US $15 US $14 US $12.9
Purchase Qty. (Meters) FOB Unit Price
10-99 US $15
100-499 US $14
500+ US $12.9
Get Latest Price
Production Capacity: 10000 Meter / Month
Transport Package: Wood Case or Bundle
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: R25, R22, taper degree 7, 11, 12.
  • Usage: Quarry Small Hole Drilling
  • Taper Degree: 4, 7, 11, 12
  • Materials: 95crmo
  • Thread: R25, R22, R28, R32
  • Specification: SGS, CE
  • HS Code: 82071990
  • Length: 360mm
  • Material: Carbon Steel
  • Hexagonal Bushing: 22*108mm
  • Match Rock Drill: Pneumatic Rock Drills
  • Trademark: Prodrill
  • Origin: China
Product Description
Tapered Drill Steels with taper or thread  description :

Drill rods with thread end have several advantages on the tapered connection threads. Namely, it is possible to extend these rods with extension rods.This way you can drill to great depths.
In general drill bits with thread connections are also easier to release from the drill rods than drill bits with tapered connection threads.

lso the risk that the drill bit is released from the drill rod on retracting the rock drill is even smaller with a threaded connection than with the tapered connection

Steel grade: 95CrMo Equivalent to SANDBAR 20 or C253, 55SiMnMo
Size: hex.19mm, hex.22mm, hex 25mm
Diameter: 0.4m-10m.
Taper degree: 4, 7°11°and 12°etc.
Thread type : R25, R22, R32.

The tapered angle of 4. 6, 7, 11, 12 degrees, also known as taper degree, is ideal for drilling with pneumatic rock drills for small hole such as dimensional stone quarry,  and another rod is shank rod
The connection thread offers the best grip and the least chance of slipping or releasing of the drill bit.
Various other tapered connection threads can be supplied on request

Tapered Rod spec :

Shank size
Length in mmLength in feetPart number
22X10861020714 0610-xx*
22X108122040714 1220-xx*
22X108183060714 1830-xx*
22X10819806-1/20714 1980-xx*
22X108244080714 2440-xx*
22X1083050100714 3050-xx*
22X1083660120714 3660-xx*
22X1085485180714 5485-xx*
22X1086400210714 6400-xx*
22X1087315240714 7315-xx
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