CNC Deep Hole Drilling & Boring Machine Series

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About CNC Deep Hole Drilling & Boring Machine Series

1. Overview

The TSK21 Series CNC Deep Hole Drilling & Boring Machines are heavy-duty, high-precision solutions designed for deep hole machining of cylindrical workpieces, bars, pipes, and pressure components. Built on robust HT300 cast iron beds, these machines combine high rigidity, exceptional accuracy retention, and flexible configurations to meet the demands of industries including oil & gas, hydraulics, aerospace, energy equipment, and mold manufacturing.

TSK2116 / TSK2120 / TSK2136 / TSK2150: Full drilling + boring capabilities
TSK2216 / TSK2220 / TSK2236: Boring-only configuration for finishing applications
Control options: Semi-automatic standard, CNC optional (recommended for blind holes, stepped holes, and complex geometries)
Optional drilling bar box for improved drilling efficiency and precision (specify at order)

2. Core Construction & Quality

Machine Bed: High-quality HT300 cast iron, cast using wooden molds for uniform material density and internal stress relief via artificial aging. The result is a rigid, vibration-dampening base with long-term dimensional stability.
Guide Rails: Precision hardened and ground surface, ensuring low friction, exceptional wear resistance, and consistent accuracy over decades of use.
Customization: We offer custom variants to meet unique workpiece sizes, depths, and process requirements.

3. Technical Specifications

Parameter	TSK2116/2216	TSK2120/2220	TSK2136/2236	TSK2150/2250
Drilling diameter range	3080 mm	3080 mm	3080 mm	40120 mm
Boring diameter range	40200 mm	40200 mm	40360 mm	120500 mm
Max drilling/boring depth	10006000 mm	100012000 mm	100012000 mm	100015000 mm
Workpiece OD range	50200 mm	60300 mm	100450 mm	300650 mm
Center height	400 mm	500 mm	500 mm	625 mm
Spindle bore	75 mm	75 mm	75 mm	130 mm
Spindle front taper	85 1:20	85 1:20	85 1:20	ISO 140#
Spindle speed range	611250 r/min	611000 r/min	40500 r/min	3.15315 r/min
Infeed speed (stepless)	501000 mm/min	501000 mm/min	501000 mm/min	5500 mm/min
Rapid traverse speed	1500 mm/min	1500 mm/min	1500 mm/min	1500 mm/min
Main motor power	15 kW	30 kW	30 kW	45 kW
Hydraulic system motor	1.5 kW	1.5 kW	1.5 kW	15 kW
Oil pressure motor	4.3 kW	4.3 kW	4.3 kW	5.5 kW
Infeed motor	4.3 kW	4.3 kW	4.3 kW	5.5 kW
Coolant pump motor	5.5 kW 3	5.5 kW 4	5.5 kW 4	7.5 kW 3
Max coolant pressure	2.5 MPa	2.5 MPa	2.5 MPa	2.5 MPa
Max coolant flow	300 L/min	400 L/min	600 L/min	900 L/min

4. Key Features & Advantages

Rigid & Stable Structure:

The HT300 cast iron bed with aging treatment absorbs heavy cutting vibration, ensuring excellent surface finish and straightness even in deep hole applications.

High-Pressure Coolant System:

With 2.5 MPa pressure and up to 900 L/min flow, the system efficiently removes chips and dissipates heat, extending tool life and maintaining accuracy.

Flexible Configurations:

Choose between semi-automatic or CNC control, plus optional drilling bar boxes, rotary tables, and custom workholding for tailored production workflows.

Wide Process Range:

From small 30 mm pilot holes to large 500 mm boring, and depths up to 15 meters, these machines handle a broad spectrum of cylindrical deep hole workpieces.

Easy Operation & Maintenance:

User-friendly control panels, centralized lubrication, and safety features ensure smooth operation, minimal downtime, and long service life.