This series of deep-hole drilling and boring machines is a specialized machine tool for machining cylindrical deep-hole parts, suitable for drilling, boring, and roll-pressing operations on such workpieces. During drilling, an internal chip-removal system (BTA method) is employed: lubricant is delivered via the nozzle into the cutting zone, carrying the chips through the interior of the drill rod to a chip-collection hopper at the rear of the machine bed. For boring and roll-pressing, lubricant is likewise supplied through the nozzle into the cutting zone, with chips being expelled forward along the tool’s axis. When performing combined boring and roll-pressing operations, either conventional boring-and-roll-pressing tools or high-efficiency, automatically expanding-and-contracting scraper-and-polishing tools can be used, enabling high-speed, high-efficiency machining of hydraulic cylinders.
The bed guideways of this series of deep-hole drilling and boring machines are double-rectangular guideways that have undergone quenching treatment, providing excellent wear resistance. Protective guards are installed at the center and on the outer sides of the bed guideways, ensuring superior aesthetic protection and preventing oil leakage. The feed and tool-holding mechanisms are driven by servo motors, with gear–rack or ball-screw drives, offering high rigidity and convenient control. The feed system employs AC servo motors to ensure the safety of the machine tool, cutting tools, and workpieces. The main spindle motor is a variable-frequency drive motor with stepless speed regulation, enhancing adaptability.

	T2110G TK2110G	T2110G/1 TK2110G/1	T2120G TK2120G	T2120G/1 TK2120G/1
Drilling diameter range	Φ30–Φ60mm	Φ30–Φ60mm		Φ30–Φ80mm
Boring diameter range	Φ40–Φ125mm		Φ40–Φ200mm
Boring depth range	0.5-8m		0.5-18m
Clamping workpiece diameter range	Φ40–Φ200mm		Φ60–Φ300mm
Guide rail width	500		650
Machine tool spindle center height	300mm		350/400mm
Bedside box spindle speed range	200-1200r/min		61-1000r/min
Bedside table spindle bore diameter	Φ75mm		Φ75mm
Spindle front taper bore	Φ85mm (1:20)		Φ85mm (1:20)
Bedside table motor power	15 kW spindle servo motor		15 kW spindle servo motor
Drill pipe box motor power		15KW		22kw
Drill pipe box spindle bore diameter		Φ75mm		Φ75mm
Tapered hole at the front end of the drill pipe box		Φ85mm 1:20		Φ85mm (1:20)
Drill pipe box speed range		40–500 r/min (12 levels)		40–500 r/min (12 levels)
Feed rate range (stepless)	5–1000 mm/min (stepless)		5–1000 r/min (stepless)
Rapid traverse rate of the feed carriage	3.2m/min		3.2m/min
Feed motor power	5.5KW		5.5KW
Drag plate fast motor power	3KW		3KW
Hydraulic pump motor power	N=1.5 kW		N=1.5 kW
Rated working pressure of the hydraulic system	6.3Mpa
Cooling pump motor power	N=5.5 kW (3 sets)		N=5.5 kW (4 units)
Cooling system rated pressure	2.5Mpa
Cooling system flow	100, 200, 300 L/min		100, 200, 300, 400 L/min
CNC system	Siemens 808D/KND CNC System