CNC deep hole drilling machine DH-2220DC

horizontal3-axisdeep hole

Overview
DH-2220DC is a horizontal CNC deep hole drilling machine designed for gun drilling and combined milling/drilling operations. Standard drilling capacity is Ø2–38 mm (optional up to 50 mm) with a maximum drilling depth of 2000 mm and milling capacity 2000 × 2000 mm.

Main specifications

• Model: DH-2220DC
• Drilling diameter: Ø2–38 mm (optional Ø50 mm)
• Max drilling depth: 2000 mm
• Milling capacity: 2000 × 2000 mm
• Max milling cutter diameter: 160 mm
• Worktable size: 1400 × 1500 mm
• Max loading: 21 000 kg
• Required floor space: 7300 × 8000 mm
• Machine weight: 22 t

Travel and axes

• X (worktable L/R): 2200 mm
• Y (column up/down): 1000 mm
• Z (spindle front/back): 2000 mm
• Rapid feed X/Y/Z: 7.5 / 7.5 / 7.5 m/min

Spindle and drive

• Spindle taper: OZ25 (spindle taper option: BT50)
• Spindle transmission: belt type
• Spindle max speed: 6000 rpm (option 4000 rpm)
• Spindle motor power (rated/max): 11 / 15 kW
• Milling head power: 15 kW

Power & pumps

• Cooling oil pump power: 5.5 / 7.5 kW
• Circulating oil pump power: 3 kW
• Machine total power: 43 kW

Worktable & cooling

• Worktable / rotary table: 1400 × 1500 mm
• Max loading: 21 000 kg
• Cooling system cylinder capacity: 630 L
• Coolant pressure: 70 MPa
• Coolant flow: 67 L/min

Accuracy & tolerances

• Gun drilling diameter accuracy: IT8–IT11
• Hole surface roughness: Ra ≤ 3.2 μm
• Axis deflection tolerance: ≤ 0.45/1000 (S45#, Ø10 mm)
• Positioning accuracy: 0.025 mm
• Repositioning accuracy: 0.015 mm

Main configuration and options

• NC controller: SYNTEC
• Spindle: HANYANG / OZ25
• Spindle frequency converter & servo motor: MK
• X/Y/Z servos and drivers: Maxsine
• Screw rod: Nanjing GONGYI
• Bearings: NSK
• Linear guides: HIWIN / TBI
• Optional components: Ø50 mm drilling, spindle speed options, customized fixtures

Typical applications

• Automotive components (camshafts, crankshafts)
• Hydraulic cylinders and valve bodies
• Oil & gas drilling components
• Aerospace and defense structural parts
• Heavy machinery and tool manufacturing

Ordering and support
For quotations, lead times, installation, commissioning and operator training, contact our sales department. Provide required drilling diameter, material and batch size to receive a tailored offer.