In mining and tunnel drilling operations, the material stability, straightness and heat and powder discharge capacity of the drill rods directly determine the drilling construction efficiency. The Drill rods supplied by YS STEEL Factory are independently completed through forging, heat treatment and thread processing, and are compatible with pneumatic and hydraulic drilling equipment. They are optimized in material ratio for hard rock, granite and other high-loss strata.
The high-quality China Drill rods of YS STEEL not only consider the bending resistance and fracture resistance, but
also
have a hollow through-hole structure to improve the problem of powder discharge and heat dissipation inside the
drill
hole. They have both standard specifications in stock and support customized sizes according to project conditions.
They
serve global mining engineering companies, quarries and tunnel construction contractors, reducing downtime losses
caused
by frequent drill rod failures from the source.
Core Technical Parameters
Below are standard specifications, custom sizes are available
This drill rod is made from silicon-manganese-molybdenum rock-breaking alloy steel billet, which is forged and
compacted as
a whole to eliminate material defects such as gas pores and inclusions.
The CNC rolling process is combined with precise straightening to control the straightness of the rod body, reducing
the
vibration of the drilling machine and the deviation of the drilling hole; the hexagonal body transmits torque
stably, and
the two ends have precise helical threads, which are tightly engaged and not prone to loosening.
The connect hollow hole supports ventilation and oil supply, efficiently discharging powder and dissipating heat,
reducing stuck drill and high-temperature fatigue damage.
The overall quenching and tempering heat treatment balances hardness and toughness, resisting high-frequency impact,
and
avoiding rod body fracture and rod head damage.
It covers mainstream specifications such as B22/B25/B28, and the length can be cut; each rod undergoes hardness,
straightness, and thread testing, suitable for mines, quarrying, tunnels, and slope anchoring, and supports both
spot
purchase and non-standard customization based on drawings and samples.
Why choose our factory?
1. The factory conducts the entire process of independent processing and does not engage in outsourcing or brand
licensing.
2. We understand the actual working conditions of overseas construction sites and do not simply produce according to
drawings.
3. A complete factory inspection system with complete documentation is suitable for export projects.
4. Both spot purchase inventory and flexible customization are considered.
5. Complete foreign trade service capabilities.
Differential advantage
Item
YS STEEL Alloy Hollow Drill Rod
Generic Lowcarbon Drill Rod
Ordinary Alloy Drill Rod
Raw Material
45Si2Cr / 55SiMnMo impactresistant alloy steel
Ordinary lowcarbon steel
Common alloy without forging compaction
Heat Treatment
Integral quenching & tempering, balanced hardnesstoughness
Resist head chipping, bending and fracture under highfrequency impact
Prone to breakage under hard rock condition
Toughness insufficient for longtime heavy duty
Custom Support
Custom length, thread specification, end face processing
Almost no customization
Limited size customization only
Batch Consistency
Fullitem inspection for every batch
Lack of strict inspection
Random sampling inspection only
FAQ
Q1: What factors are primarily associated with the fracture of the drill pipe?
A1: The steel material, heat treatment process, and also have a close relationship with the operation of the drilling
machine, the hardness of the rock layer, and whether the powder discharge in the drill hole is smooth.
Q2: Without a complete drawing, can you only provide the drilling machine model and customize the drill pipe?
A2: Yes, we can provide the model of the drilling rig or a sample of the old drill pipe. After the survey and
mapping, we
will carry out customized processing.
Q3: Is it possible to conduct a small-scale trial order first and then proceed with a long-term framework
cooperation?
A3: Yes, standard specifications are available in stock and small trial orders can be accepted. After confirming the
working conditions, an annual supply agreement will be signed.
Q4: What supporting documents can be provided for export orders?
A4: Material certificate, hardness test report, size inspection record, meeting customs clearance and project
acceptance
requirements.
Q5: How long is the approximate production cycle for custom drill pipes?
A5: Depending on the complexity of the specifications, the production cycle for custom products is 7 to 12 working
days,
and the goods can be dispatched from stock within 3 to 5 days.
Use this form to request a quotation for steel products, or for cut and fabricated parts. Our team reviews the specification, confirms stock or production schedule, and replies with price, lead time.
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