CNC Drilling Machine

Product Overview

This CNC drilling machine is engineered for high-precision, automated hole-making in structural steel plates, tube sheets, and heavy-duty industrial components. Built on a rigid, stress-relieved Meehanite cast iron bed, it minimizes thermal deformation and mechanical vibration during continuous high-load operations. Integrating rigid tapping, high-pressure through-spindle coolant, and an automatic tool changer (ATC), the system reduces cycle times and eliminates manual positioning errors in heavy industrial manufacturing environments.

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Product Range

We offer three standard platform configurations tailored to different workpiece geometries and production volumes:
Series G-Beam (Gantry Type): Designed for large structural profiles, H-beams, and channels. Features dual-side synchronized drives and a wide gantry clearance.
Series P-Plate (Fixed Table, Moving Gantry): Optimized for wide heat exchanger tube sheets, boiler plates, and heavy plate fabrication up to 3000 mm width.
Series T-Tower (Compact Vertical Type): Suited for smaller, high-mix precision parts, brackets, and flanges requiring rapid index drilling and milling capabilities.

Technical Specifications

Technical Parameter	Standard G-Beam Series	Standard P-Plate Series	Standard T-Tower Series
Max. Drilling Diameter	Phi 50 mm (Solid Drill) / phi 100 mm (U-Drill)	Phi 80 mm	Phi 40 mm
Spindle Taper	BT40 / BT50 / HSK-A63	BT50	BT40
Spindle Speed Range	30 - 4500 RPM	20 - 3000 RPM	50 - 6000 RPM
Spindle Motor Power	15 kW / 22 kW	30 kW	11 kW
Axis Travel (X x Y x Z)	Customizable (6000 x 1500 x 400 mm)	3000 x 3000 x 500 mm	1000 x 800 x 600 mm
Positioning Accuracy	+/- 0.02 mm / 1000 mm	+/- 0.025 mm / 1000 mm	+/- 0.015 mm / 1000 mm
Repeatability	+/- 0.01 mm	+/- 0.012 mm	+/- 0.008 mm
CNC Controller	Fanuc 0i-MF / Siemens SINUMERIK 828D	Siemens SINUMERIK 840D sl	Fanuc 0i-MF
Coolant System	Through-spindle 3.0 MPa high pressure	Through-spindle 5.0 MPa high pressure	External & Through-spindle 2.0 MPa

Key Features

Finite Element Analysis (FEA) Bed Structure:

The base frame undergoes finite element stress optimization, thermal annealing at 650°C, and vibration aging to eliminate residual internal stresses prior to precision machining.

Optimized Chip Evacuation:

Integrated twin-auger chip conveyors and a high-flow coolant flush channel prevent chip accumulation inside the machining zone during deep-hole peck drilling.

High-Rigidity Spindle Unit:

Cartridge-type spindle supported by high-precision P4-grade angular contact ball bearings, ensuring minimal runout during heavy roughing and fine finishing.

Closed-Loop Feedback:

Linear scales on X and Y axes provide real-time position error compensation, maintaining dimensional stability across long production runs.

Materials & Surface Finishes

Compatible Workpiece Materials:

Structural carbon steel (Q345, A36), alloy steel (42CrMo, 40Cr), stainless steel (304, 316L), titanium alloys, and high-strength aluminum plates.

Machined Hole Tolerances:

Achieves standard hole tolerances down to IT7 to IT9, with surface roughness values of Ra 1.6 um to 3.2 um depending on feed rates and tool selection.

Applications

Structural Steel Fabrication:

Drilling bolt holes, lightening pockets, and slotting on H-beams, channel steel, and connection plates for bridges and high-rise buildings.

Energy & Power Generation:

Precision multi-hole drilling on thick tube sheets, baffle plates, and shell flanges for industrial boilers, heat exchangers, and pressure vessels.

Heavy Machinery & Automotive:

Machining mounting holes, dowel pins, and oil passages on large gearbox housings, press frames, and chassis structural members.

Quality Control & Inspection

Every machine undergoes a strict multi-stage inspection protocol prior to factory release:

Laser Interferometer Calibration:

Axis positioning accuracy and backlash are verified and calibrated using Renishaw laser interferometers.

Ballbar Circularity Test:

Dynamic interpolation accuracy of simultaneous multi-axis motion is tested in accordance with ISO 230-4 standards.

72-Hour Thermal Run Test:

Spindle runs continuously at maximum RPM for 72 hours to monitor bearing temperature stabilization and thermal drift limits.

Geometry Inspection Report:

A comprehensive test report containing laser and ballbar data is shipped with every individual machine serial number.

Custom Manufacturing Process

Engineering Review: Technical team evaluates customer CAD drawings, material specifications, and cycle time targets.

Bed Casting & Annealing: In-house casting followed by controlled thermal annealing to stabilize the metal structure.

Precision Milling & Boring: Guide rail mounting surfaces and table tops are machined on large-scale floor type boring and milling machines in a temperature-controlled workshop.

Mechanical Assembly: Clean-room assembly of ball screws, linear guides, gearboxes, and spindle units by certified technicians.

Electrical Integration & Commissioning: Wiring of CNC cabinets, drive tuning, and dry-run testing before final customer sign-off.

Technical Support & After-Sales Service

01.

Installation & Commissioning:

On-site mechanical leveling, electrical connection, and laser realignment provided by factory-trained field service engineers.

02.

Operator Training:

Multi-day hands-on training covering G-code programming, parameter setup, tool offset management, and routine maintenance.

03.

Spare Parts Inventory:

Critical wear components—including spindle cartridges, drive belts, proximity switches, and solenoid valves—stocked regionally for fast dispatch.

04.

Remote Diagnostics:

Ethernet-enabled CNC controllers allow remote PLC monitoring and error code troubleshooting by our application engineers.

FAQ

Q: What is the maximum plate thickness this CNC drilling machine can process in a single pass?

A: Using standard HSS or solid carbide twist drills, the machine handles plate thicknesses up to 100 mm. For deeper holes up to 300 mm, high-efficiency indexable U-drills or gun drilling tools with high-pressure through-spindle coolant (3.0 to 5.0 MPa) are recommended to ensure proper chip breakage and evacuation.

Q: How do you ensure long-term positioning accuracy against mechanical wear?

A: We utilize preload-adjusted pre-tensioned precision ball screws and high-rigidity linear guide rails. Furthermore, linear scales on primary axes provide direct feedback to the CNC controller, automatically compensating for any thermal growth or mechanical backlash in real time.

Q: What are the electrical and utility requirements for installation?

A: Standard electrical input is 380V / 415V, 3-phase, 50/60 Hz (custom transformers can be supplied for 480V North American grids). Compressed air supply is required at 0.6 to 0.8 MPa for tool clamping and pneumatic safety locks. A centralized mist collector and coolant filtration system are also integrated.

Q: What type of warranty and remote diagnostic support is included?

A: The machine comes with a standard 12-month warranty covering all mechanical and electrical parts against manufacturing defects. Remote diagnostics via an Ethernet port on the CNC controller allow our engineers to troubleshoot ladder diagrams and parameter settings within 24 hours.

Request a Quote

To receive an accurate technical proposal and quotation tailored to your workpiece dimensions and production output targets, please provide the following details to our engineering team:
Workpiece material and maximum dimensions (Length x Width x Thickness).
Hole diameter range and depth requirements.
Required production volume or target cycle time per part.
Preferred CNC controller brand (Fanuc or Siemens).

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