This machine tool is specifically designed for deep-hole machining and is primarily capable of performing drilling, boring, reaming, roll-pressing, and contour milling on the internal bores of large-diameter cylindrical heavy-duty parts. During machining, the workpiece rotates at low speed while the cutting tool rotates at high speed and feeds axially; in addition to through-holes, it can also machine stepped holes, blind holes, and other configurations. This machine tool allows flexible selection of machining processes based on actual requirements, making it suitable for a wide range of applications.
During drilling, the machine tool employs the BTA internal chip evacuation process, in which a lubricator supplies high-pressure cutting fluid that entrains and carries away the chips through the internal bore at the tail end of the drill rod. For boring, a push-boring process is used: cutting fluid is delivered to the cutting zone either via the lubricator (through a small-diameter nozzle) or directly through the tail end of the boring bar (via a large-diameter passage), providing cooling and lubrication while simultaneously flushing the cutting zone and conveying the chips forward toward the headstock end. For reaming, an external chip evacuation configuration is adopted, requiring the use of dedicated reaming tools, tool holders, and specialized workholding fixtures to achieve effective chip removal.
The T2180 deep-hole drilling and boring machine is equipped with a spindle box that enables simultaneous dual rotation of both the workpiece and the cutting tool, or independent single-axis operation, thereby accommodating diverse machining process requirements. By significantly reducing the workpiece rotational speed—where high-speed rotation is unsuitable—it effectively enhances machining efficiency while improving machining accuracy and quality.
The machine tool employs a heavy-duty four-jaw chuck at the headstock for workpiece clamping, with center support and hydraulic thrust from the oil distributor to securely hold the workpiece. The oil distributor features a spindle-type design, significantly enhancing load-bearing capacity and improving rotational accuracy. The machine bed exhibits high rigidity, excellent wear resistance, and outstanding dimensional stability. Tool feed is driven by an AC servo system that enables stepless speed regulation. The headstock gearbox is powered by a DC motor with infinitely variable speed control, while the drill spindle gearbox is driven by a high-power motor with gear-shift speed selection. Workpiece clamping and securing via the oil distributor are both hydraulically actuated, with all operational parameters displayed on gauges, ensuring safe, quick, and stable workpiece setup and operation. The machine tool is controlled by a PLC and equipped with a user-friendly human–machine interface, fully reflecting the ease of operation.

Technical Specifications	Technical parameters
Technical Specifications	T2280/TK2280	T2180/TK2180
Drilling diameter range		Φ60mm–Φ150mm
Boring diameter range	Φ800mm	Φ800mm
Maximum Boring Depth	1000–15000 mm	1000–15000 mm
Clamping workpiece diameter range	320-1250mm	320-1250mm
Machine tool spindle center height	1000mm	1000mm
Bedside box spindle speed range	3-120r/min	3-120r/min
Spindle bore of the spindle box	Φ130mm	Φ130mm
Spindle front taper bore	Metric 140#	Metric 140#
Bedside table motor	55KW	55KW
Drill pipe box motor		30 kW, 45 kW, 55 kW
Drill pipe box spindle bore diameter		100mm
Tapered hole at the front end of the drill pipe box		Φ85mm 1:20
Drill pipe box speed range	5–2000 mm/min (stepless)	16-270r/min
Feed rate range	2m/min	5–2000 mm/min (stepless)
Rapid feed table	11KW	2m/min
Feed motor power	36N.M	11KW
Palletizing Rapid Motor	N=1.5 kW	36N.M
Hydraulic pump motor	6.3Mpa	N=1.5 kW
Rated working pressure of the hydraulic system	N=7.5 kW (2 units), 5.5 kW (1 unit)	6.3Mpa
Cooling pump motor	2.5Mpa	N=7.5 kW (2 units), 5.5 kW (1 unit)
Cooling system rated pressure	300, 600, 900 L/min	2.5Mpa
Cooling system flow		300, 600, 900 L/min
CNC operating system	Siemens or KND CNC system