📦 DTH Drill Rods

Kaishan 114mm DTH Drill Rods for Mining & Water Well

Name: Kaishan 114mm DTH Drill Rods for Mining & Water Well
Brand: Kaishan
SKU: 114mm Drill Rods
Availability: InStock

Model: 114mm Drill Rods

Kaishan 114mm DTH drill rods are premium drilling tools designed for down-the-hole hammer drilling in mining, quarrying, and water well applications. Manufactured from high-strength alloy steel with precision friction welding, these rods deliver reliable torque transmission and efficient energy transfer. The 114mm diameter provides excellent rigidity and hole cleaning capability, making them ideal for deep hole drilling. Each rod features standard API thread connections for compatibility with major DTH hammers and rigs. With advanced heat treatment and strict quality control, Kaishan drill rods ensure long service life and consistent performance in demanding conditions. Whether you are drilling blast holes in hard rock or water wells in overburden, these rods are engineered to maximize productivity and reduce downtime. Available in various lengths and thread types to suit your specific drilling needs.

Best For

Mining Blast Hole Drilling Water Well Drilling Quarrying and Aggregate Production Geothermal and Foundation Drilling

Technical Specifications

Model	114mm Drill Rods
Type	DTH Drill Rod
Size	114mm outer diameter, lengths 1m-6m
Application	Mining, water well, quarry, geothermal drilling
Material	42CrMo alloy steel
Weight	Approx. 25-30 kg/m depending on length
Packing	Wooden cases or bundles

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Selection Advantages Applications Comparison Components Principle Features Packaging Service FAQ

Product Details

## Overview Kaishan 114mm DTH drill rods are engineered for high-performance down-the-hole hammer drilling. As a leading manufacturer of drilling tools, Kaishan combines advanced metallurgy and precision machining to produce rods that withstand the toughest rock formations. These rods serve as the critical link between the drill rig and the DTH hammer, transmitting rotation, feed force, and compressed air while maintaining straightness and integrity. ## Technical Features Each rod is made from high-quality alloy steel, typically 42CrMo, and undergoes rigorous heat treatment to achieve an optimal balance of strength and toughness. The friction welding process ensures a seamless joint between the rod body and the tool joints, providing superior fatigue resistance. The 114mm outer diameter offers high bending stiffness, reducing deviation in deep holes. Standard API 2 3/8" or 3 1/2" threads are available, compatible with most DTH hammers and rigs. The rods are also available with various lengths, such as 1m, 1.5m, 2m, 3m, and 6m, to meet different drilling depth requirements. ## Applications These drill rods are widely used in mining, quarrying, construction, and water well drilling. In mining, they are essential for blast hole drilling in hard rock such as granite, basalt, and iron ore. For water well projects, they enable efficient penetration through overburden and bedrock. The robust design also makes them suitable for geothermal drilling and foundation work. Kaishan 114mm DTH drill rods are trusted by contractors worldwide for their reliability and cost-effectiveness. ## Quality Assurance Kaishan implements strict quality control at every stage of production. From raw material inspection to final dimensional check, each rod is tested for hardness, thread accuracy, and straightness. The rods are packed in wooden cases or bundles for safe transportation. With a global network of distributors and service centers, Kaishan provides timely support and genuine spare parts to keep your drilling operations running smoothly.

Technical Selection

Key parameters for matching this machine to your job. Send us your hole diameter, depth and rock condition and our engineers will confirm the right configuration.

Weight

Approx. 25-30 kg/m depending on length

Model

114mm Drill Rods

Type

DTH Drill Rod

Size

114mm outer diameter, lengths 1m-6m

Application

Mining, water well, quarry, geothermal drilling

Material

42CrMo alloy steel

Packing

Wooden cases or bundles

Not sure this model fits? Tell us the hole diameter and depth — we will confirm the matching rig, compressor and hammer.

Check with an engineer

Key Advantages

✓

High-strength alloy steel construction for durability in hard rock

✓

Precision friction welding for seamless joint and fatigue resistance

✓

114mm outer diameter for high rigidity and reduced hole deviation

✓

Standard API threads for compatibility with major DTH hammers

✓

Advanced heat treatment for optimal strength and toughness

✓

Available in various lengths to suit different drilling depths

Applications

📍 Mining Blast Hole Drilling

Used in open-pit and underground mines for drilling blast holes in hard rock formations.

Solution: Kaishan 114mm DTH drill rods provide the strength and straightness needed for accurate hole placement, improving fragmentation and reducing drilling costs.

📍 Water Well Drilling

Ideal for drilling water wells in overburden and bedrock, ensuring efficient penetration.

Solution: With high torque transmission and efficient air flushing, these rods help drill deep water wells quickly and reliably.

📍 Quarrying and Aggregate Production

Used in quarries for drilling blast holes to extract stone and aggregate.

Solution: The robust design withstands abrasive rock, extending service life and minimizing downtime in high-production quarries.

📍 Geothermal and Foundation Drilling

Suitable for geothermal boreholes and foundation piling in construction projects.

Solution: Precise threads and straightness ensure accurate drilling, while the durable material handles challenging ground conditions.

Similar Models in This Category

This model is unique in its series — here are similar models from the same category.

Model	Model	Type	Size	Application	Material	Inquire
114mm Drill RodsThis model	114mm Drill Rods	DTH Drill Rod	114mm outer diameter, lengths 1m-6m	Mining, water well, quarry, geothermal drilling	42CrMo alloy steel	Get a Quote
COUPLING-SLEEVES	COUPLING-SLEEVES	DTH Drill Rod Coupling Sleeve	2 3/8" - 4 1/2" (60mm - 114mm) outer diameter, various thread types	Connecting DTH drill rods in mining, water well, quarry, construction	High-strength alloy steel, heat-treated	Get a Quote
SHANK-ADAPTERS	SHANK-ADAPTERS	DTH Drill Rod Adapter	2"-8" (51mm-203mm) or as per hammer shank	Mining, water well, quarry, construction DTH drilling	High-strength alloy steel, heat-treated	Get a Quote
76mm Drill Rods	76mm Drill Rods	DTH Drill Rod	76mm outer diameter, lengths 1m-6m	Mining, quarrying, water well drilling, construction	42CrMo alloy steel or equivalent	Get a Quote
89mm Drill Rods	89mm Drill Rods	DTH Drill Rods	89mm outer diameter	Mining, quarrying, water well drilling, construction	High-strength alloy steel (e.g., 42CrMo)	Get a Quote
102mm Drill Rods	Kaishan 102mm DTH Drill Rod	DTH Drill Rod	102mm diameter, lengths 1m-6m	Mining, quarrying, water well drilling	42CrMo alloy steel	Get a Quote

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Main Components

Rod body
Male tool joint
Female tool joint
Threads
Upset ends
Friction weld joint
Internal air passage
Wrench flats

Working Principle

DTH drill rods work as part of a down-the-hole hammer drilling system. The rod connects the drill rig's rotary head to the DTH hammer. Compressed air is fed through the rod to the hammer, which drives the piston to strike the bit. The rod transmits rotation from the rig to the hammer and bit, and also applies feed force to keep the bit in contact with the rock. Simultaneously, the rod serves as a conduit for the air that flushes cuttings out of the hole. The threaded connections at both ends ensure a secure, leak-free joint that can withstand high torque and vibration. The rod's material and heat treatment are critical to resist bending, fatigue, and wear during long drilling cycles.

Detailed Features

▸High-strength alloy steel for superior durability
▸Precision friction welding for reliable joints
▸114mm diameter for high rigidity
▸Standard API threads for global compatibility
▸Advanced heat treatment for extended life
▸Available in multiple lengths
▸Strict quality control for consistent performance
▸Cost-effective solution for demanding drilling

Packaging & Shipping

Kaishan 114mm DTH drill rods are packed in wooden cases or bundles, with each rod protected by end caps and anti-rust oil. Customized packaging is available upon request. For international shipping, rods are loaded into 20ft or 40ft containers. Standard delivery time is 15-30 days after order confirmation, depending on quantity. We ship from major Chinese ports such as Shanghai, Ningbo, or Qingdao. Air freight or express delivery is available for urgent orders.

After-Sales Service

Kaishan offers a 12-month warranty on all drill rods against manufacturing defects. Our dedicated after-sales team provides 24-hour online support and technical assistance. We offer free training for operators on proper use and maintenance of drilling tools. Genuine spare parts are available from our global warehouses to minimize downtime. Our engineers can assist with product selection and troubleshooting. We are committed to ensuring your drilling operations run efficiently and profitably.