Deep Hole Drilling Machine

OTURN’s deep hole drilling machine is especially suitable for long, straight, and high-precision holes in large and heavy workpieces, such as hydraulic cylinders, shafts, molds, and pipes. Our machine is useful to solve various deep drilling failures, preventing hole deviation, accuracy loss, and other issues. If you require a stable and high-precision deep hole machining solution, our engineering team is ready to work with you.

Gundrilling Machine

Through long and single-flute tools and an interior high-pressure coolant, excellent surface roughness and high straightness.

BTA Drilling Machine

Features a multi-edge cutting head to achieve rapid material removal rates, suitable for drilling holes with large diameters and high depth.

Ejector Drilling Machine

Using a double-tube system to form the negative pressure chip removal with high stability, a medium solution between gun drill and BTA.

Stable Drilling

Ensure highly stable drilling capacities to achieve the required hole depth, diameter, and straightness.

Selectable Tooling System

Provide gun, BTA, or ejector tools for your selection to meet workpiece material and hole requirements.

Chip Removal

Achieve continuous chip removal to prevent blockage and ensure stable operation for long-term use.

Customization Service

Support customizing the machine configuration based on your project demands and workpiece drawings.

The deep hole drilling machine is widely used for various industries due to its reliable machining capacity and excellent drilling precision. Common applications of this machine include the automotive, aerospace, energy equipment, and precision mold or mechanical parts.

Automotive

Deep hole drilling machines are suitable for handling engine components, transmission parts, and structural elements in the automotive industry. These components require extremely precise hole diameters. This machine maintains a minimum hole diameter error within 0.01 mm, while also ensuring a high surface finish to enhance engine efficiency and reliability.

Energy Equipment

For energy equipment such as turbine housings, hydraulic pump housings, oil and gas equipment parts, traditional drilling lathes lack stability to handle large and heavy components. The deep hole drilling machine is equipped with an automatic feeding and stable chip removal system to improve machining efficiency while ensuring high precision.

Aerospace

The aerospace industry typically has high demands on tolerances and surface finish, and its components are mainly made of high-strength alloys or special steel. Deep hole drilling machines for the aerospace industry are useful to improve hole machining accuracy, preventing product failures such as hole eccentricity and overheating.

Mold and High-Precision Mechanical Components

Mold or high-precision mechanical components require consistent and precise hole depth and positions. This machine supports stable guidance and CNC control to achieve highly repeatable precision machining, ensuring the assembly accuracy of these components. Through the stable and precise drilling process, you can achieve high product consistency and extend its service life.

1. What are the Key Technical Parameters During the Deep Hole Drilling Machine Selection?

When selecting a deep hole drilling machine for your project, you should consider key parameters to ensure the machine you choose can meet actual demands. Common factors you can consider include the maximum drilling depth, drilling diameter, spindle power, and cooling system. For example, different sizes of workpieces require different depth-to-diameter ratios, which requires you choose suitable machine specifications. The spindle and cooling system of a machine are directly connected to drilling efficiency, chip removal, and operation stability.

2. How to Choose Between Gun Drilling and BTA Drilling?

In general, the gun drilling type is suitable for holes with small diameters and a high depth-to-diameter ratio. It offers high precision for hole formation at one time, but requires a special tool. The BTA drilling machine is more suitable for medium to large diameters of deep holes. It achieves higher drilling efficiency and faster material removal rates than the gun drilling machine. You can choose a proper type based on actual production requirements.

3. Can the Deep Hole Drilling Machine be Integrated into My Production Line?

Yes. This type of machine features a high automation level, which can be easily integrated into the existing automatic production line. It is suitably equipped with the automatic loading and unloading system, tool life management, and online measurement and compensation. These automatic functions are key components to help the machine achieve unmanned continuous production.

A deep hole drilling machine is specially designed for workpieces with high depth-to-diameter ratios within the range of 10:1 to 100:1 or higher. Compared to a common drilling lathe or machining center, this machine offers higher hole straightness to improve the drilling precision. It is also equipped with highly efficient cooling and chip-removing systems, ensuring stable and continuous operation. If you are seeking a stable deep hole machining solution, this type of machine is a good choice.

Core Components of Deep Hole Drilling Machine

The stable drilling process of a deep hole drilling machine relies on the coordinated operation of core components like the following. Learning its structure and working principle is helpful for you to determine if the machine can be matched with your project.

• Machine Bed: The bed of a deep hole drilling machine is made of high-strength cast iron or welded steel and has undergone multiple aging treatments. It efficiently absorbs vibrations during the drilling process to prevent drilling deviation. For long-term use, this high-strength bed ensures reliable stability to reduce the rework rate.
• Spindle System: The spindle system is the power core of a deep hole drilling machine, which determines the cutting stability and drilling precision. The spindle offers a high-rigidity design, suitable for continuous operation at low speed. It significantly ensures high hole wall quality by preventing vibration.
• Tooling System: The deep hole drilling machine offers high compatibility for being equipped with different types of tools, including gun drill, BTA, and ejector. Different tool structures are directly connected to the cutting method, chip removal, and even production efficiency.
• Guidance System: For common failures during the drilling process, such as deviation and vibration, the guidance system is equipped with high-precision guide bushings and auxiliary support structures. These parts are helpful to ensure high machining stability, thereby improving the hole’s straightness and precision.
• Cooling & Chip Removal System: A deep hole drilling machine typically uses high-pressure coolant that can be directly conveyed in the cutting area. It can remove chips and additional heat in time to prevent clogging and overheating issues. This system is important for enhancing drilling stability and extending the service life of tools.