River CNC EDM Hole Drilling Machines

High-Performance Multi-Axis CNC EDM Drilling for Complex, Safety-Critical Components

The River CNC Series from Ocean Technologies delivers advanced EDM hole drilling capability for industries where precision and repeatability directly impact human safety. Aerospace manufacturers rely on these systems for cooling holes in turbine blades and vanes, fuel injector nozzles, and multi-angle airfoil features that must meet strict aviation standards. Medical and life-science companies depend on the River CNC platform for micro-holes in biopsy needles, catheter tips, stents, pacemakers, and orthopedic implants. In the automotive sector, the series produces precision holes for fuel injection systems, ABS and brake components, and hydraulic and pneumatic assemblies.

Using controlled high-frequency electrical discharges, the River CNC machines drill accurate holes from 0.1โ€“3.0 mm across a wide range of conductive materials including stainless steel, hardened steel, carbide, titanium, Inconel, superalloys, ceramics, graphite, and more. High-precision servo control, rigid casting construction, and linear guideways ensure stable micro-electrode performance โ€” even when drilling on slopes, curves, or contoured surfaces. These machines can also remove broken taps or drills without damaging the original hole or threads.

Key Features

  • Fixed-table design with X/Y/Z mobility for machining large, heavy workpieces
  • High-efficiency linear guideways for precise motion control
  • 5th-generation control system with intelligent database support
  • High-performance machining with minimal electrode wear and excellent surface finish
  • Two-year aged Meehanite casting for superior stability and long service life
  • Touch-screen controller with user-friendly HMI
  • Breakthrough function and AGC 10 blocks for enhanced drilling control
  • CAM software for 5-axis and 6-axis drilling
  • Available single- and dual-axis rotary tables
  • Extended spindle options (mini spindle)
  • 3-, 5-, and 6-axis synchronized drilling capability
  • Standard flushing and optional submerged-type water tank
  • Tilting head for advanced angular applications
  • Gantry-type machine construction on larger models
  • 12-, 16-, 32-, and 50-station automatic electrode changers
  • Optional robotic workpiece changer for lights-out automation
  • Milling capabilities for advanced shape generation
  • Optimized for irregular and complex geometries
  • HP1+ high-speed discharge circuit: 40% faster drilling with 30% less energy usage

Absolute Machine Tools backs every River CNC model with dedicated EDM applications engineering and a highly trained service team. Contact us today to request a test cut, schedule a demo, or discuss your CNC drilling requirements with an EDM specialist.

Specifications

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Item / Model
River 300 Request a Quote
River 350 Request a Quote
River 600 Request a Quote
River 800 Request a Quote
River 1000 Request a Quote

X Axis Travel

11.8โ€ณ

13.8โ€ณ

23.6โ€ณ

31.5โ€ณ

39.4โ€ณ

Y Axis Travel

7.9โ€ณ

9.8โ€ณ

15.7โ€ณ

23.6โ€ณ

47.2โ€ณ

Z Axis Travel

7.9โ€ณ

11.8โ€ณ

15.7โ€ณ

19.7โ€ณ

39.4โ€ณ

W Axis Travel

13.8โ€ณ

17.7โ€ณ

17.7โ€ณ

19.7โ€ณ

27.6โ€ณ

Work Table Size

13.8โ€ณ x 9.9โ€ณ

23.6โ€ณ x 11.8โ€ณ

23.6โ€ณ x 15.7โ€ณ

31.5โ€ณ x 23.6โ€ณ

47.2โ€ณ x 49.2โ€ณ

Max. Workpiece Height

7.1โ€ณ

13โ€ณ

15.7โ€ณ

19.7โ€ณ

43.3โ€ณ

Max. Workpiece Weight

330 lbs.

550 lbs.

1,764 lbs.

3,978 lbs.

6,614 lbs.

Max. Current

25 Amps

25 Amps

25 Amps (32 / 64 opt.)

32 Amps (64 opt.)

32 Amps (64 opt.)

Power Capacity

3.8 KVA

3.8 KVA

3.8 KVA

3.8 KVA

6 KVA

Electrode Diameter

0.004โ€ณ โ€“ 0.118โ€ณ

0.004โ€ณ โ€“ 0.118โ€ณ

0.004โ€ณ โ€“ 0.118โ€ณ

0.004โ€ณ โ€“ 0.118โ€ณ

0.004โ€ณ โ€“ 0.118โ€ณ

Machine Dimensions

43.3โ€ณ x 39.4โ€ณ x 78.7โ€ณ

43.3โ€ณ x 39.4โ€ณ x 78.7โ€ณ

40.6โ€ณ x 64.2โ€ณ x 77.2โ€ณ

88.6โ€ณ x 96.5โ€ณ x 99.2โ€ณ

171.3โ€ณ x 167.3โ€ณ x 157.5โ€ณ

Machine Weight

1,323 lbs.

1,764 lbs.

2,425 lbs.

5,500 lbs.

7,716 lbs.

Ideal Cutting Applications

  • Multi-angle cooling holes in turbine blades and vanes
  • Aerospace fuel injector and nozzle micro-holes
  • Airfoil holes (round, conical, or custom geometries)
  • Complex 5-axis and 6-axis hole arrays for gas turbine components
  • Medical device micro-holes (stents, pacemakers, implants)
  • Surgical instrument fine-finish drilling (biopsy needles, catheter tips)
  • Fuel injection, ABS, and brake system components
  • Precision holes in hardened tools, punches, dies, and molds
  • Machining of titanium, Inconel, superalloys, tungsten carbide, ceramics, and graphite
  • Broken tool removal without part damage

In Stock and Ready for Immediate Delivery

Image Model and Brand Serial #
River 35 Znc Edm River 35 Small Hole Drilling EDM
Ocean Technologies

River 35 HPI (350×250) Touch screen, with standard accessories, generator (0.1-3.0mm drilling), standard ceramic guide 1.0mm (1 piece), brass electrode 1.0mm (10 pieces), Electrode holder – BS Type

DR33370825
River 35 Znc Edm
River 35 Small Hole Drilling EDM
Ocean Technologies

River 35 HPI (350×250) Touch screen, with standard accessories, generator (0.1-3.0mm drilling), standard ceramic guide 1.0mm (1 piece), brass electrode 1.0mm (10 pieces), Electrode holder – BS Type

DR33370825
River 35 Znc Edm River 35 Small Hole Drilling EDM
Ocean Technologies

River 35 HPI (350×250) Touch screen, with standard accessories, generator (0.1-3.0mm drilling), standard ceramic guide 1.0mm (1 piece), brass electrode 1.0mm (10 pieces), Electrode holder – BS Type

DR33360825
River 35 Znc Edm
River 35 Small Hole Drilling EDM
Ocean Technologies

River 35 HPI (350×250) Touch screen, with standard accessories, generator (0.1-3.0mm drilling), standard ceramic guide 1.0mm (1 piece), brass electrode 1.0mm (10 pieces), Electrode holder – BS Type

DR33360825
Ocean Technologies River 350 With Atc River 350 Small Hole Drilling EDM
Ocean Technologies

River 350 (25A) with standard accessories, generator (0.1-3.0mm drilling), standard ceramic guide 1.0mm (1 piece), brass electrode 1.0mm (10 pieces), ATC 12 (12 pos. elec. chngr. w/3 BS hldrs), electrode support, BS type electrode holder (9 pieces)

DR33561125
Ocean Technologies River 350 With Atc
River 350 Small Hole Drilling EDM
Ocean Technologies

River 350 (25A) with standard accessories, generator (0.1-3.0mm drilling), standard ceramic guide 1.0mm (1 piece), brass electrode 1.0mm (10 pieces), ATC 12 (12 pos. elec. chngr. w/3 BS hldrs), electrode support, BS type electrode holder (9 pieces)

DR33561125