CNC Deep Hole Drilling and Boring Machine

High-Rigidity Deep Hole Drilling and Boring Machine | 3,000 mm Machining Depth | 37 kW Spindle Motors

1. Product Overview

The TSK2120Ax3m CNC Deep Hole Drilling and Boring Machine is designed for deep hole machining operations, combining BTA deep hole drilling and push boring capabilities in one machine. It is suitable for machining cylindrical workpieces requiring deep, accurate holes.

With a maximum machining depth of 3,000 mm, a drilling diameter range of Ø25–100 mm, and a boring diameter range of Ø40–200 mm, this machine offers a practical solution for industrial deep hole drilling and boring applications.

The machine features a high-rigidity cast iron bed, precision-ground rectangular guideways, a servo-driven feed system, and a high-capacity cutting oil circulation system to support stable machining performance.

As a professional deep hole drilling machine manufacturer, Dezhou Guanlu Precision Machinery Co., Ltd. provides deep hole drilling and boring equipment for customers with demanding machining requirements.

2. Key Features of the TSK2120Ax3m Deep Hole Drilling Machine

Dual machining functions: Combines BTA deep hole drilling and push boring operations.

3,000 mm machining depth: Designed for deep hole machining of long cylindrical workpieces.

Wide machining range: Drilling diameters from Ø25 to Ø100 mm and boring diameters from Ø40 to Ø200 mm.

37 kW drilling spindle motor: Provides power for the drill spindle box.

37 kW workpiece spindle motor: Drives workpiece rotation through a three-stage gearbox with stepless speed adjustment within each gear range.

High-rigidity cast iron bed: Resin-sand casting, stress-relief treatment, and precision-ground double rectangular guideways.

Servo-driven feed system: Provides controlled axial movement of the drill spindle box and positioning of the oil feeder.

High-pressure, high-flow cutting oil system: Maximum pressure of 2.5 MPa and maximum flow rate of 400 L/min.

PLC control system: Provides machine control and operating functions.

Integrated workpiece support: Includes a workpiece support stand, steady rest, oil feeder, and drill bar support.

5. High-Rigidity Machine Bed and Mechanical Design

Heavy-Duty Cast Iron Bed

The machine bed is manufactured using resin-sand casting and undergoes normalizing treatment. Its rigid structure is designed to withstand machining forces and support stable machine operation.

Precision-Ground Rectangular Guideways

The bed features double rectangular sliding guideways with precision-ground and hardened surfaces. The rigid guideway structure supports smooth feed movement and helps reduce vibration during machining.

Servo-Driven Feed Mechanism

The drill spindle box uses a servo motor and a rack-and-pinion transmission system for axial feed movement. The oil feeder is also servo-driven to accommodate different workpiece lengths and provide controlled workpiece clamping and release.

Heavy-Duty Spindle Systems

Both the drill spindle box and headstock are equipped with 37 kW servo spindle motors. Their gear transmissions use precision-ground gears with hardened tooth surfaces to support demanding machining operations.

6. Cutting Oil Circulation and Lubrication System

An effective cutting oil system is essential for deep hole machining. The TSK2120Ax3m is equipped with a dedicated cutting oil circulation system designed to provide sufficient cutting fluid during drilling and boring.

7. Workpiece Clamping and Support

The machine uses a manual three-jaw chuck mounted on the headstock to clamp one end of the workpiece. The oil feeder's conical disc automatically presses against and supports the other end.

The standard configuration includes a workpiece support stand, a steady rest, an oil feeder, and a drill bar support. These components assist with workpiece positioning, tool guidance, and support during machining.

The oil feeder also provides tool guidance and cutting oil delivery at the machining area.

8. Machining Accuracy

The technical specifications for the TSK2120Ax3m include the following machining accuracy targets:

Machining Operation	Parameter	Specification
Rough Boring and Drilling	Hole Diameter Accuracy	IT9–IT11
Rough Boring and Drilling	Surface Roughness	Ra 6.3–12.5 μm
Rough Boring and Drilling	Hole Deviation	0.5 mm/1,000 mm
Finish Boring	Hole Diameter Accuracy	IT8–IT9
Finish Boring	Surface Roughness	Ra 1.6–3.2 μm
Finish Boring	Bore Straightness	Less than 0.10 mm/1,000 mm

Actual machining results depend on the workpiece material, initial hole condition, tooling, cutting parameters, and other process conditions. Final acceptance requirements should be confirmed for the specific application.

9. Standard Machine Configuration

The standard machine configuration includes:

Machine bed

Drill spindle box

Headstock

Manual three-jaw self-centering chuck

Oil feeder

Cutting oil circulation system

Feed slide

Lubrication system

PLC control system

Electrical cabinet with air conditioner

Drill bar support

Workpiece support stands

Steady rest

Operation and maintenance documentation

Drilling tools, boring tools, cutting oil, and other tooling or accessories can be quoted separately according to the customer's workpiece dimensions and machining requirements.

Contact: Lilian Lee
Whatsapp: +8619819312517
Email: drilling@dzguanlu.com

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