A waterjet cutting machine cuts intricate shapes into a wide range of materials using a CNC-controlled, high-pressure water jet—sometimes enhanced with abrasives like garnet sand—all without generating heat. The supersonic stream erodes the material precisely. Softer materials like wood and rubber are cut with pure waterjets, while harder substances such as metal, stone, and glass require abrasive waterjets. Below we will try to list the checking list for the waterjet cutter maintenance for your reference:
1. Daily Operation of High Pressure Water Jet Cutting Machine
- Startup of a Water Jet Cutter:
- Check power & connections.
- Turn on machine – software runs self-check.
- Move machine parts to “home” position (do one at a time).
- Use laser pointer to center the cutting head over your starting point.
- Settings of Water Jet Cutting Equipment:
- Set water pressure (usually 3000-4000 bar).
- Set cutting speed (based on material hardness/thickness).
- Set abrasive flow (sand amount – affects cut depth/quality).
- Cutting Parameters Settings on a Water Cut Machine:
- Secure material flat on the table.
- Move cutting head to start position.
- Choose cutting mode (e.g., pierce hole first).
- Press start – water + abrasive cut along the path.
- Watch the cut – adjust settings if needed.
2. Maintenance Schedule & Checking List of Waterjet Cutting Machine
- Every Day Checking List of Waterjet Cutter Machine Maintenance:
- Look for water/oil leaks.
- Check oil level.
- Check power switches.
- Check if rails/gears are greased.
- Clean machine outside & water tank filter.
- Every Week Check List for Waterjet Machine Maintenance:
- Check protective wipers on rails.
- Clean cutting head & nozzle.
- Check height sensor (if equipped).
- Every Month Checking Points:
- Thoroughly check cutting head parts.
- Inspect hoses, wires, and connections.
- Check pump seals and oil level.
- Parts Replacement (Typical Times) of Water Jet Cutting Machines:
- Hydraulic Oil & Filter: Every 500 hours or 6 months.
- High-Pressure Seals: Every 1500 hours (sooner for heavy use).
- Accumulator Bladder: Every 3000 hours (needs expert).
- Pump Parts (Plungers/Valves): Every 5000 hours (full check).
- Cutting Nozzle (Orifice): 60-180 hours (depends on use).
- Mixing Tube (Focusing Tube): 60-180 hours (depends on use).
3. Fixing Common Problems for Waterjet Cutting Equipment
- Water Presure Pump Won’t Start?
- Check power switch & cables.
- Open oil tank valve / change clogged filter.
- Low Oil Pressure?
- Open oil tank valve fully.
- Check motor spins the right way.
- Clean oil pump pilot valve.
- Low Cutting Pressure?
- Fix water leaks in pipes.
- Check water supply pressure (needs >0.4 MPa).
- Replace pump oil piston seal.
- Replace the gem orifice nozzle.
- Oil Too Hot?
- Check for leaks inside pump/valves.
- Adjust pump oil flow.
- Fix cooling system.
4. Safety Rules MUST Follow while Running Waterjet Cutter Machine
- Wear Protection: Safety glasses, hard hat, ear plugs, steel-toe boots, gloves & face shield near high pressure.
- While Operating:
- Keep people away during cutting.
- Secure material flat – prevents breaking the nozzle.
- NEVER leave during operation.
- High Pressure DANGER:
- Turn OFF main power BEFORE maintenance.
- Only trained people touch warning-labeled parts.
- Use correct replacement wires.
- Emergencies:
- Press BIG RED STOP button if water leaks under pressure.
- Stay AWAY – trapped water might spray when power is off.
- Release trapped water BEFORE turning power back on.
5. Changing Wear Parts of Water Jet Cutter Machine
- General Steps:
- Turn OFF system pressure & power.
- Find the right replacement part.
- Remove old part carefully.
- Install new part cleanly & correctly.
- Test – check for leaks/function.
- Gem Orifice Nozzle of Water Cut Machine:
- Clean seat thoroughly.
- Check water stream is straight.
- Unscrew nut, replace orifice.
- Test water jet – replace if not sharp.
- Mixing Tube (Focusing Tube) of Water Jet Machine:
- Insert into mixing chamber.
- Add protective sleeve.
- Secure clamp and nut.
- Seals of Water Cutter:
- Power OFF & release ALL pressure.
- Take apart pump end cap.
- Remove old seals/O-rings.
- Clean VERY well.
- Lubricate NEW seals, reassemble carefully.
6. Keep Water Jet Cutter Machine Happy
- Clean Workspace: Keep area tidy to avoid dust/dirt.
- Safe Cleaning: Use gentle cleaners – no harsh chemicals.
- Listen & Feel: Watch for strange noises or heat.
- Stay Cool: Make sure cooling system (oil/water) works properly.
Key Tip: Always ask the machine maker or a qualified technician for help with big problems or complicated repairs!
