OMAX 55100 Jet Machining Center
Key Specifications
Cutting Area
Pump Pressure
Pump Power
Max Cutting Thickness
Positioning Accuracy
Cutting Speed
Overview
The OMAX 55100 Jet Machining Center is one of OMAX's large-format production waterjet systems, delivering a 55×100 inch (approximately 1,400×2,540 mm) cutting envelope for manufacturers, metal service centers, and job shops requiring high throughput on full-size sheet stock. The 55100 is built around OMAX's proprietary direct-drive pump technology, which the company developed as a more reliable and energy-efficient alternative to traditional intensifier-based UHP pumps. OMAX direct-drive pumps use servo-controlled crankshaft mechanisms to generate cutting pressure, resulting in lower vibration, longer seal life, and simpler maintenance compared to intensifier designs.
The OMAX 55100 uses the Intelli-MAX software suite, which is widely regarded as one of the most capable and user-friendly CAM and control platforms in the waterjet industry. Intelli-MAX includes OMAX's proprietary path optimizer, which calculates optimal cutting speeds for every segment of the tool path based on material type, thickness, and desired edge quality. The software's material library covers hundreds of materials and automatically sets pump pressure and abrasive flow rate for each job. A conversational programming interface allows operators to import DXF and DWG files, edit geometry, and generate G-code without CAM expertise.
The 55100 supports OMAX's Tilt-A-Jet cutting head as an optional upgrade, which compensates for kerf taper by tilting the jet to produce truly square cut edges on thick materials. The machine also accepts OMAX's MAXJET 5i nozzle, which uses an improved mixing tube geometry to boost abrasive acceleration and cut speed without increasing pump pressure. The robust welded steel frame, precision linear bearing axes, and ballscrew drives deliver ±0.076 mm positioning accuracy across the full table.
The OMAX 55100 is a widely deployed production machine in aerospace subcontracting, architectural metalwork, defense fabrication, and contract cutting services. OMAX, now part of Hypertherm, maintains a strong North American support infrastructure with factory-trained service technicians and readily available consumables.
Full Specifications
| Parameter | Value |
|---|---|
| Cutting Area | 1,397 × 2,540 mm (55 × 100 in) |
| Pump Pressure | 55,000 PSI (3,793 bar) — OMAX direct-drive pump |
| Pump Power | 40 HP (30 kW) or 50 HP (37 kW) optional |
| Max Cutting Thickness | 200 mm (8 in) on steel; varies by material |
| Positioning Accuracy | ±0.076 mm (±0.003 in) |
| Cutting Speed | Up to 1,500 mm/min (soft materials); 150–400 mm/min on 12 mm steel |
| Control System | Intelli-MAX Software Suite (OMAX proprietary) |
| Machine Weight | Approx. 4,500 kg (9,900 lbs) |
Specifications sourced from omax.com — verified 2026-03-28
Strengths & Limitations
Strengths
- Intelli-MAX software is widely regarded as the most user-friendly waterjet CAM platform in the industry
- Direct-drive pump has fewer wear components than intensifier pumps — lower maintenance cost
- Tilt-A-Jet optional head eliminates kerf taper for precision parts without post-processing
- Strong parts availability and service support through Hypertherm/OMAX network
Limitations
- OMAX direct-drive pump tops out at 55,000 PSI — lower than 60,000–90,000 PSI intensifier alternatives
- Large table footprint requires significant floor space and utility hookups
- Software licensing and Intelli-MAX ecosystem create some vendor lock-in
Best For
Frequently Asked Questions
01
Intensifier pumps use hydraulic cylinders to multiply low-pressure fluid to UHP levels, which creates pulsing pressure and requires frequent seal replacement. OMAX's direct-drive pump uses a servo-motor-driven crankshaft, producing smoother, more consistent pressure with fewer high-wear seals. The result is lower maintenance frequency and more consistent cut quality.
02
Yes. Waterjet is one of the preferred methods for cutting carbon fiber reinforced polymer (CFRP) because it produces no heat-affected zone, no delamination from heat, and no airborne carbon fiber dust (the abrasive slurry contains the fiber particles). The OMAX 55100 with Intelli-MAX's composite material settings is used in aerospace and motorsport for CFRP structural panels.
03
Primary consumables are garnet abrasive (typically 80 mesh), focusing tubes (MAXJET 5i nozzle), and orifice jewels. The direct-drive pump requires periodic crankshaft seal and check valve replacement, but at longer intervals than intensifier pumps. OMAX publishes a preventive maintenance schedule with estimated costs per operating hour.
Videos
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Community Discussions
Troubleshooting and problem-solving — Need Help! OMAX 55100 Head Vibration Issues - cnczone.com
Community discussion — CNCzone.com - CNC Machines, CadCam, Classifieds, Metalworking ...
Community discussion — Omax Waterjet startup - cnczone.com
Troubleshooting and problem-solving — Problem New (x86 win 10) PC for OMAX 55100 - Won't recognize ...
Pricing and buying discussion — Buying an Omax waterjet…thoughts? : r/Machinists - Reddit
Troubleshooting and problem-solving — Water jet recommendations? : r/Machinists - Reddit
Community discussion — Which waterjet software do you use, and would you recommend it?
Troubleshooting and problem-solving — Omax WJ low pressure issue : r/machining - Reddit
Links to community discussions. Summaries are editorial — visit the original thread for full context.




