EDM Micro Drilling

Sanluo Precision is a specialized supplier and manufacturer engaged in EDM micro drilling in China, mainly providing customized micro EDM machining services for the fields of medical surgical needles, precision molds, medical devices, electronic devices, etc., and supporting the customization of complex and difficult parts. It can complete the ultra-precision processing of micron-level small holes, deep holes, inclined holes and special-shaped holes, providing support for related fields.

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Product Description

Micro Drilling Equipment

As a professional EDM micro drilling processing plant, Sanluo Precision has advanced equipment. Micro-hole machine: electrode diameter φ0.01mm～1mm, spindle speed 500rpm～5000rpm, Z-axis stroke 200mm, positioning accuracy 0.5μm. Tube electrode system: brass tube electrode φ0.05～0.5mm is used, working fluid flushing inside, smooth chip removal, hole depth ≤50mm. Solid electrode: tungsten electrode, tungsten copper electrode with a diameter of 0.02mm to 0.3mm, suitable for shallow holes, blind holes and special-shaped holes. Servo control: adaptive discharge gap control, automatic tool retraction in case of short circuit to protect the electrode. CCD vision: coaxial observation of hole position, automatic positioning, position accuracy ±2μm. Rotary worktable C-axis rotation, capable of processing inclined holes, cross holes and spiral holes.

Station Accuracy

Dimensional accuracy	OD	ID	SH	R	DA
unit:±/mm	0.001	0.001	0.001	0.001	0.0001
Geometric accuracy	Roundness	Coaxiality	Concentricity	Profile tolerance	Circular runout
unit:±/mm	0.001	0.002	0.002	0.001	0.002
Production capacity	1~999999 pcs	1~999999 pcs	1~999999 pcs	1~999999 pcs	1~999999 pcs
Production cycle	3-20 days	3-20 days	3-20 days	3-20 days	3-20 days

Rich Application Cases

Sanluo Precision has rich experience in EDM micro drilling. Film cooling holes of engine turbine blades with a diameter of φ0.3mm to φ0.8mm, an inclination angle of 15° to 30°, and 300 to 500 holes per blade. Sweat holes of combustion chamber flame tubes, with a hole diameter of 0.2mm-0.5mm, a hole pitch of 1mm-2mm, and thousands of holes. Precision molds: ejector pin holes of plastic molds, with a hole diameter of 0.5mm～2mm, a depth of 50mm～100mm, and a verticality of 0.01mm. Core rod holes of powder metallurgy molds with a diameter of 0.3mm～0.8mm and a depth-diameter ratio of 50:1. Side holes of medical device catheters with a diameter of φ0.1mm to φ0.5mm and a hole position accuracy of ±0.01mm. Micro holes of sprayers with a diameter of 0.05mm to 0.2mm and uniform atomization. Via holes of ceramic substrates for electronic devices with a diameter of φ0.1mm to 0.3mm, metallized through holes. Nozzle holes of inkjet print heads with a diameter of 0.02mm to 0.05mm. The company has directly or indirectly provided customized micro EDM machining services for Johnson & Johnson Medical, Rolls-Royce, Pratt & Whitney, Medtronic and other enterprises, with an annual drilling volume of over one million holes.

Equipment Technical Parameters

It is at the top level, especially suitable for the ultra-high precision requirements of aerospace, medical devices and other fields.

Parameter Category	Parameter Details
Equipment model	SX-200HPM
Core positioning	Ultra-precision processing of fine deep small holes, special-shaped holes and complex microstructures
Number of axes and stroke	Multi-axis (up to 7-axis). X/Y/Z/Z2 axis stroke: 350x200x150x150 mm
Key accuracy	Positioning accuracy ±2μm, resolution 0.1μm
Micro machining capability	Able to process the smallest Φ0.01mm micro holes; electrode copying device can prepare micro electrodes with a diameter of 5μm
Core advantages	Integrated ultra-high frequency intelligent power supply; equipped with on-line electrode preparation and laser measurement functions (measurement accuracy ±0.15μm); adopts high-pressure flushing technology to improve chip removal
Processing surface quality	Processing surface roughness can reach Ra 0.05μm
Typical applications	EDM micro drilling for aerospace engine blade film holes, chemical fiber spinneret holes, watch gears, medical device micro parts, etc

Parameter Category	Parameter Details
Equipment model	CNC-430AC
Core positioning	Fully automatic 4-axis CNC, suitable for micro-hole processing of semiconductor, ceramic and other materials
Number of axes and stroke	4-axis CNC; X/Y axis stroke 400x300mm; Z-axis stroke 250mm
Key accuracy	X/Y axis positioning accuracy 0.005mm; repeat positioning accuracy ±0.0005mm
Control and drive	Taiwan Advantech CNC system; X/Y axis adopts AC servo linear motor
Processing effect	Surface roughness Ra 0.6μm
Characteristic configuration	Deionized water is used as the working fluid; equipped with non-electrolytic power supply to prevent workpiece oxidation
Typical applications	Precision EDM micro drilling parts, etc