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Your parts come back ready to use. No warping from heat. No secondary grinding or deburring. No microscopic cracks that show up later and cause failures.
The cut edge is smooth because water and abrasive don’t generate the thermal stress that plasma and laser do. That means your tolerances stay tight, your material properties stay consistent, and your timeline stays on track.
If you’re working with hardened steel, titanium, or composites that lose strength when heated, this matters. The process doesn’t change the metal’s microstructure. What goes in is what comes out—just in the shape you need.
You also get versatility. Thickness up to 12 inches. Complex geometries without tool changes. Multiple parts nested on a single sheet to reduce waste. It’s efficient in ways that traditional machining isn’t.
We operate out of West Islip and serve fabricators, machine shops, and manufacturers across North Merrick, NY and Long Island. We’re not a general fab shop that does waterjet on the side. This is what we do.
Our CNC equipment handles everything from one-off prototypes to production runs. We work with architects who need decorative panels, aerospace suppliers who need tight-tolerance components, and marine fabricators who need corrosion-resistant hardware.
North Merrick’s manufacturing base includes metal fabrication, marine equipment, and precision parts suppliers. If you’re in that mix, you already know the cost of rework and the value of getting it right the first time.
You send us your CAD file or drawing. We review it for manufacturability and flag anything that might cause issues—tight inside corners, material thickness concerns, tolerance conflicts. If something won’t work as drawn, we tell you before we start cutting.
Once the file is approved, we program the CNC system and nest your parts to maximize material usage. The waterjet uses a high-pressure stream mixed with garnet abrasive to cut through the metal. No heat, no tool wear, no force that distorts thin material.
The machine pierces its own starting holes and follows the programmed path. For complex shapes or beveled edges, we use a 5-axis head that adjusts the angle dynamically. After cutting, parts are inspected and deburred if needed—though most come off the table ready to go.
Turnaround depends on complexity and queue, but most jobs ship within a few days. Rush work is available when your schedule demands it.
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You get precision cutting across aluminum, stainless steel, carbon steel, titanium, tool steel, brass, copper, and specialty alloys. Thickness ranges from thin gauge sheet up to 12 inches depending on material hardness and your tolerance requirements.
We handle custom metal waterjet cutting for prototypes, short runs, and production quantities. If you need 10 parts or 10,000, the setup is the same. That’s one advantage of CNC—you’re not paying for hard tooling or long lead times.
North Merrick’s proximity to marine and aerospace industries means we see a lot of requests for corrosion-resistant metals and high-strength alloys. We’re set up for that. Our abrasive waterjet system doesn’t care if you’re cutting 6061 aluminum or Inconel—it cuts clean either way.
Design support is included. If your part has features that are difficult to machine conventionally, we can often suggest geometry changes that make waterjet a better fit. We also provide material consultation if you’re deciding between alloys or thicknesses.
Waterjet cuts virtually any metal. That includes aluminum, stainless steel, carbon steel, tool steel, titanium, Inconel, brass, copper, bronze, and hardened alloys. If it’s a solid material, waterjet will cut it.
The process works because it’s mechanical, not thermal. The abrasive stream erodes material rather than melting it. That means there’s no upper hardness limit like you’d hit with plasma or laser.
Thickness capacity goes up to 12 inches in most metals, though cutting speed slows as thickness increases. For anything under 2 inches, waterjet is usually faster and cleaner than conventional machining. If you’re not sure whether your material is a good fit, send us the specs and we’ll tell you what to expect.
Most waterjet cuts come off the table smooth with minimal to no burrs. The edge quality depends on cutting speed, abrasive flow rate, and material type, but in general, you’re looking at a finish that’s ready to weld, assemble, or coat without additional grinding.
Compare that to plasma, which leaves dross and slag that has to be removed. Or laser, which creates a heat-affected zone that can be brittle or discolored. Waterjet doesn’t have those issues because there’s no combustion and no molten material.
If you need a specific edge finish—say, for a gasket surface or a cosmetic application—we can adjust parameters to hit that. But for most structural and functional parts, what comes off the machine is what you use. That saves time and labor on your end.
Waterjet holds tolerances in the range of ±0.005″ to ±0.010″ depending on material, thickness, and geometry. For most fabrication and assembly work, that’s more than adequate. If you need tighter, we can hit ±0.003″ on certain materials with slower cutting speeds and optimized parameters.
The CNC system controls the cutting head position with high repeatability. That means if you’re running a batch of identical parts, they’ll be consistent piece to piece. There’s no tool deflection or wear like you’d see with end mills or punches.
One thing to watch for is taper. Waterjet streams diverge slightly as they pass through thick material, which can create a small angle on the cut edge. On parts under 1 inch thick, taper is usually negligible. For thicker sections or critical dimensions, we can compensate in the programming or use a 5-axis head to maintain perpendicularity.
Standard turnaround is 3 to 5 business days for most jobs. That includes programming, cutting, inspection, and packaging. If your project is straightforward—simple shapes, common material, no special finishing—it often ships sooner.
Rush service is available when you’re up against a deadline. We’ve turned jobs around in 24 hours when the situation calls for it. That depends on machine availability and queue, but if you need it fast, ask. We’ll tell you what’s realistic.
For production runs or repeat orders, lead times drop because the programming is already done. Once we’ve cut your part the first time, running it again is just a matter of loading material and hitting start. If you’re ordering regularly, we can often keep your job file ready to go and prioritize your work accordingly.
Waterjet doesn’t introduce heat. That’s the main reason to choose it. Laser and plasma both melt material to make the cut, which creates a heat-affected zone. In that zone, the metal’s microstructure changes—it can become brittle, hardened, or weakened depending on the alloy.
For structural parts, aerospace components, or anything that will see stress or fatigue, that heat-affected zone is a liability. Waterjet eliminates it entirely. The material stays at room temperature throughout the process, so its mechanical properties don’t change.
Waterjet also cuts thicker material more effectively. Laser struggles past 1 inch in steel. Plasma can go thicker but leaves a rough edge and significant dross. Waterjet maintains edge quality and accuracy regardless of thickness. If you’re cutting anything over 2 inches, waterjet is usually the better choice both for quality and cost.
Waterjet excels at complex shapes because the stream is narrow—typically 0.020″ to 0.040″ depending on orifice and abrasive settings. That narrow kerf allows for intricate detail, tight nesting, and minimal material waste.
Inside corners will have a radius equal to roughly half the kerf width. So if you’re cutting with a 0.030″ stream, expect an inside corner radius of about 0.015″. If your design requires sharp corners, we can approach from two directions and meet in the corner, though that adds a small witness mark.
The CNC system can also handle bevels and 3D geometry with a 5-axis cutting head. That’s useful for weld prep, countersinks, or parts that need angled edges. If your CAD file has curves, angles, or complex contours, waterjet can follow it without tool changes or repositioning. It’s one of the most versatile cutting methods available for custom metal work.
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