Separated DTH Drilling Rig

The RCZ412B-1 is a separated DTH drilling rig designed for quarry, mining, and infrastructure drilling applications. It is widely used for blast hole drilling in small to medium-sized quarries, cement mines, and open-pit projects. With the option of a 3.5-inch or 4-inch impactor, I can drill holes of φ90mm, φ115mm, and φ138mm, covering the most common blasting requirements.

Powered by a strong rotary head that delivers up to 1950 N·m torque and reaches 150 rpm, the rig adapts well to both hard rock and softer formations, giving you flexibility across different working conditions. The compact yet sturdy structure makes transport and setup straightforward, while the upgraded dust collection system and reinforced components ensure safe, reliable operation in tough environments.

High Drilling Efficiency:

• This separated DTH drilling rig is equipped with a 3.5 or 4-inch impactor; the RCZ412B-1 achieves fast penetration across a wide range of rock conditions.
• Adjustable rotary speed (up to 150 rpm) ensures the right balance of speed and torque for both hard and soft rock layers.

 

Advanced Dust Collection:

• Dual and single iron pumps replace the older aluminum pump design, delivering stronger dust collection and longer service life.
• Dust collection stroke extended from 200mm to 300mm, providing a cleaner and safer workplace.

 

Stronger & More Durable Design:

• Reinforced chain pins, slide plate, and positioning sleeve increase overall machine strength for continuous operations.
• Threaded connection between rotary head spindle and drill rod sleeve reduces wear during long hours of high-speed drilling.

 

Stability & Mobility on Rough Terrain:

• A column motor powers the travel system, extending the lifespan of the chassis.
• Redesigned chassis layout lowers the center of gravity, and single-rib tracks improve traction on uneven ground.

Easier Operation:

• Streamlined controls allow one person to operate the rig, reducing labor costs and improving productivity.
• Front pipe rack capacity increased from 6 to 9 rods, supporting longer continuous drilling without frequent reloads.

 

Extended Working Hours:

• Larger oil mist tank and 130-liter diesel tank support long shifts without frequent refueling.
• Optimized hydraulic system with larger suction and return pipes doubles the service life of hydraulic components.

The RCZ412B-1 separated DTH drilling rig is commonly used in small to medium-sized quarry sites, where it drills blast holes for daily stone production. It handles materials like limestone and hard rock without slowing down, helping operators keep a steady output.

In cement mining projects, this separated DTH drilling rig prepares consistent holes for blasting, making the extraction process more controlled and predictable.

For open-pit coal mining, the rig is used for routine drilling work, supporting site preparation and material removal.

It is also a practical choice for infrastructure jobs such as road construction and foundation work, where the separated DTH drilling rig can be used for anchor holes and support drilling.

Delivery time: 10-15days

We use professional equipment to securely frame the boxes and assign a dedicated person to inspect each step of the process, ensuring safe transportation at all stages.

Our products have passed CE certification and ISO9001 quality management system certification, ensuring that they meet international standards in terms of safety, reliability and quality.

FAQ

Q: Why is the price of the same model machine different?

A: Because the price of the drilling rig is influenced by configuration. Higher-end machines often come with superior equipment, adopting powerful brand engine, advanced control systems, and premium-quality drill pipes and bits.

Q: Why choose us?

A: Rancheng Machinery is a very professional drilling rig supplier in China. We have rich experience in this industry for 11 years. Now our products are serving around the world. We have high-quality drilling rigs, professional and efficient services, competitive prices and fast delivery.

Q: Do you offer any custom designs?

A: Yes, we have our trade factory. We provide our customers with customized service. We can produce a superior product for you by your designs.

Q: How to order?

A: Step 1, please tell us what model and quantity you need;

Step 2, then we will make a proforma invoice for you to confirm the order details;

Step 3, we confirmed everything, then arrange the payment;

Step 4, finally we deliver the goods within the stipulated time.

Q: When will make delivery?

A: About 10-15 work days after receipt of the payment.

Q: After-sales service

A: One-year warranty for all kinds of products;

Q: Can we visit your factory?

A: Yes, we warmly welcome you to visit our factory.

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