📦 DTH Drill Rods

Kaishan 89mm DTH Drill Rods | Drilling Tools

Name: Kaishan 89mm DTH Drill Rods | Drilling Tools
Brand: Kaishan
SKU: 89mm Drill Rods
Availability: InStock

Model: 89mm Drill Rods

Kaishan 89mm DTH drill rods are premium drilling tools engineered for down-the-hole hammer operations in mining, quarrying, water well, and construction projects. Manufactured from high-stre

Best For

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

Technical Specifications

Model	89mm Drill Rods
Type	DTH Drill Rods
Size	89mm outer diameter
Application	Mining, quarrying, water well drilling, construction
Material	High-strength alloy steel (e.g., 42CrMo)
Weight	Approx. 20-25 kg/m depending on length
Packing	Wooden crates or steel frames

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Selection Advantages Applications Comparison Components Principle Features Packaging Service FAQ

Product Details

Kaishan 89mm DTH drill rods are premium drilling tools engineered for down-the-hole hammer operations in mining, quarrying, water well, and construction projects. Manufactured from high-strength alloy steel with precision friction-welded joints, these rods deliver reliable torque transmission, straightness, and fatigue resistance under high-impact conditions. The 89mm diameter offers an optimal balance between stiffness and weight, making it suitable for medium to deep hole drilling with DTH hammers. Each rod undergoes rigorous heat treatment and thread machining to ensure compatibility with standard DTH bits and hammers. Whether you are drilling blast holes, water wells, or foundation anchors, Kaishan 89mm DTH drill rods provide consistent performance, longer service life, and reduced downtime. Backed by Kaishan's global service network, these rods are the dependable choice for contractors seeking productivity and cost-efficiency in demanding drilling environments.

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. 20-25 kg/m depending on length

Model

89mm Drill Rods

Type

DTH Drill Rods

Size

89mm outer diameter

Application

Mining, quarrying, water well drilling, construction

Material

High-strength alloy steel (e.g., 42CrMo)

Packing

Wooden crates or steel frames

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

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High-strength alloy steel construction for durability

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Precision friction-welded joints for superior integrity

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Heat-treated threads resist galling and fatigue

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89mm diameter balances rigidity and weight

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Compatible with standard DTH hammers and bits

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Available in various lengths for customized drilling

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Shot-peened surface for enhanced wear resistance

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Stringent quality control ensures consistent performance

Applications

📍 Mining Blast Hole Drilling

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

Solution: Kaishan 89mm DTH drill rods provide reliable torque transmission and straightness, ensuring accurate hole placement and efficient blasting.

📍 Water Well Drilling

Employed in water well projects to drill through overburden and bedrock.

Solution: The rods' durability and compatibility with DTH hammers enable fast penetration and stable drilling in varying geological conditions.

📍 Quarrying and Aggregate Production

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

Solution: With wear-resistant surfaces and robust joints, these rods withstand abrasive rock, reducing downtime and replacement costs.

📍 Foundation and Construction

Applied in foundation engineering for drilling anchor holes and micropiles.

Solution: The 89mm diameter offers the necessary stiffness for precise drilling, while the rods' strength ensures reliability in urban construction sites.

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
89mm Drill RodsThis model	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
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
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
114mm Drill Rods	114mm Drill Rods	DTH Drill Rod	114mm outer diameter, lengths 1m-6m	Mining, water well, quarry, geothermal drilling	42CrMo alloy steel	Get a Quote

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Not sure which model fits your project? Send us your working pressure and air demand — our engineers will recommend the right one.

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Main Components

Rod body
Male thread (pin)
Female thread (box)
Central bore
Upset ends
Wear-resistant surface
Thread roots
Shoulder

Working Principle

DTH drill rods function as the mechanical link between the drill rig and the down-the-hole hammer. The rig applies rotation and feed force to the rod string, which transmits these forces to the hammer and bit. Simultaneously, compressed air travels through the central bore of the rods to power the hammer's piston, which strikes the bit to fracture rock. The rods must withstand high torque, bending, and impact loads while maintaining straightness to ensure hole accuracy. The threaded connections allow multiple rods to be joined, forming a drill string of desired length. Proper thread engagement and alignment are critical to prevent fatigue failures and air leakage. Kaishan 89mm DTH drill rods are engineered with optimized wall thickness and material properties to handle these demanding conditions, ensuring efficient energy transfer and prolonged service life in various drilling applications.

Detailed Features

▸High-strength alloy steel
▸Friction-welded joints
▸Heat-treated threads
▸89mm outer diameter
▸Wear-resistant surface
▸Precision machining
▸Various lengths available
▸Strict quality control

Packaging & Shipping

Kaishan 89mm DTH drill rods are packed in sturdy wooden crates or steel frames, with each rod protected by end caps and anti-rust oil. Customized packaging is available upon request. For sea transportation, rods are loaded into 20ft or 40ft containers, with a maximum quantity depending on length. Delivery time is typically 15-30 days after order confirmation, depending on quantity. Shipping ports include Shanghai, Ningbo, or as specified by the customer. Air freight and express delivery are also available for urgent orders.

After-Sales Service

Kaishan offers a comprehensive after-sales service package, including a 12-month warranty against manufacturing defects. Our global service network provides 24-hour technical support and spare parts availability. We offer on-site training for operators and maintenance personnel to ensure proper usage and extended product life. Customized solutions and technical consultations are available to meet specific drilling requirements. With Kaishan, you gain a reliable partner dedicated to your drilling success.

Frequently Asked Questions

What is the size and drilling capability of the 89mm DTH drill rods?+

The 89mm DTH drill rods have an 89mm outer diameter and are used for medium to deep hole drilling with DTH hammers. They are available in various lengths for customized drilling.

What material are the 89mm DTH drill rods made from?+

The 89mm DTH drill rods are manufactured from high-strength alloy steel, typically 42CrMo or equivalent. The rods feature friction-welded joints and heat-treated threads.

What equipment do the 89mm DTH drill rods connect to?+

The 89mm DTH drill rods connect the DTH hammer and bit to the drill rig, transmitting rotation, feed force and compressed air. They are compatible with standard DTH hammers and bits.

What applications are the 89mm DTH drill rods suitable for?+

The 89mm DTH drill rods are used in mining, quarrying, water well drilling and construction projects. They are suited for blast hole drilling, water wells and foundation anchors.

How much do the 89mm DTH drill rods weigh?+

The 89mm DTH drill rods weigh approximately 20-25 kg/m depending on length. The 89mm diameter balances rigidity and weight.

How are the 89mm DTH drill rods packaged for shipping?+

The 89mm DTH drill rods are packed in wooden crates or steel frames, with each rod protected by end caps and anti-rust oil. Customized packaging is available upon request.

What warranty is offered on the 89mm DTH drill rods?+

Kaishan offers a 12-month warranty against manufacturing defects on the 89mm DTH drill rods. A global service network provides 24-hour technical support and spare parts availability.