Video summary

All About Metal Cutting Bandsaws - Tips, Tricks, Repairs

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Product Review

Product reviewed

An older used Evolution-style metal-cutting hydraulic band saw for cutting metal—specifically the host’s JET HVBS-7MW (7” x 12” class) water-cooled metal bandsaw. It’s used for square/90° and 45° cuts on items like tube, angle iron, and small stock.


What it does / main features mentioned

Water-cooled cutting system

  • Coolant runs via a pump and drains back into a tank.
  • Cuts are “super quiet,” with little to no mess.
  • Coolant can drip/wet the work; if adjusted incorrectly it can fling water, but the host says it’s manageable.
  • Drain/catch flow described:
    • blade area drains into a tray
    • through a strainer/colander
    • into a tank
    • the pump recirculates coolant back to the blade.

Hydraulic downfeed

  • A hydraulic cylinder lowers the blade slowly, controlled by:
    • a lever/on-off style control (hydraulics direction)
    • a wheel/valve to set descent speed
  • At the bottom of the stroke, it shuts itself off using a switch/button.
  • The host notes it can run without coolant (coolant has a separate switch), but they prefer coolant.

Cut quality & accuracy

  • Emphasis on high-quality square cuts.
  • Can make fine incremental cuts on smaller stock/tube pieces.
    • Example described: trimming an approximately 1/8” thick tube piece by “chucking it back in” and taking off about 1/8” at a time.
    • Host claims this is something they “can’t do” as effectively with abrasive chop saws.

Cutting capacity / class

  • Described as a 7 by 12 unit (tied to maximum cutting area).

Blade choice

  • Working blade described as 93” long with 8½ TPI (teeth per inch).
  • Blade is used for cutting, and the host also mentions chip-out/cleaning behavior tied to tooth spacing variation.
  • The host ordered a second spare blade (also 93” and 8½ TPI) to avoid downtime if the working blade snaps.

Coolant / cutting fluid used

  • The host replaced/avoided the previous owner’s coolant/oil-water mixture that looked like “curdled milk.”
  • Coolant used: Master Fluid Solutions Trim SC520 (blue liquid), used concentrated:
    • Estimated mix: about 2 cups per a couple gallons
  • Reported results:
    • No rust after months of leftover drips/liquid residue around the area.
    • When topping off, the host used distilled water to reduce rust/contaminants.
    • Mentions evaporation over time can cause pump/level changes.

User experience vs. abrasive chop saws (main comparison)

Chop saw (abrasive) complaints

  • Very loud
  • Throws dust everywhere
  • Cuts take a long time
  • Requires extra cleanup (sweeping/cleaning after each cut)
  • A diamond blade upgrade on the chop saw helped slightly but still left the saw loud, slow, and messy.

Band saw benefits

  • Much quieter (less reliance on ear protection).
  • Much less cleanup (only minor dribble/fling if coolant is mis-set).
  • Improved workflow:
    • less mental friction to cut frequently because sparks/dust management is reduced
    • improved efficiency and accuracy
  • Supports repeat work:
    • For multiple identical tubes, the host suggests clamping/holding and cutting several at once—claiming you can gang-cut multiple pieces simultaneously.

Practical accessories / workholding mentioned

  • Bora Portamate 3-in-1 stands
    • Roller options for moving stock in/out
    • Stationary position to prevent movement
    • Helps support long pieces so they don’t bind or hang off the saw
  • Magnetic tool hooks
    • Keeps frequently used tools nearby
    • Specifically mentioned: 3/4” wrench and 9/16” wrench
  • Sliding square angle checking
    • Stored near the machine for quick 45° setup/verification

Repairs & maintenance notes (unique problems + solutions)

Problem encountered

  • The blade was “popping out” and coming down unexpectedly.
  • Diagnosis: a locked-up bearing
    • blade was sliding on the bearing instead of the bearing rolling properly.

Replacement parts strategy

  • The original center shaft assembly was listed at ~$53, but was backordered with no ETA.
  • The host identified the bearings inside as 608 ZZ (“skateboard wheel bearings”).
  • Fix:
    • Bought a 20-pack for $10 from Amazon (~$0.50 each)
    • Took longer than expected due to unfamiliar installation, but after replacement the blade reportedly hasn’t fallen off since.
  • Additional spares:
    • kept 18 spare bearings on hand afterward.

Other maintenance

  • Changed cutting fluid (worked well).
  • Current blade is “still okay,” but a spare blade is ready in case of snapping mid-project.

Pros (as stated)

  • Very quiet vs. abrasive chop saws
  • Water cooled system reduces mess and cleanup
  • Better workflow/efficiency and less hesitation to cut often
  • High cut quality, especially square cuts and 45°/90° angles
  • More precise than chop saws for certain tasks (example: incremental/chucking-back trimming)
  • Repeat cutting can be faster with the right setup/clamping approach
  • Spare bearings are cheap and easy to source once identified

Cons / limitations mentioned

  • New units cost more
    • host estimates $2,000–$3,000 new with water cooling
    • non-water-cooled versions: about $1,000 (host’s estimate)
  • Used units may arrive with unknown/dirty coolant, requiring replacement
  • Incorrect coolant adjustment can cause water flinging
  • Some older machine assemblies/parts (like the full center shaft assembly) can be hard to source (backordered), though bearing-level parts are cheap

Verdict / overall recommendation

The reviewer strongly recommends a water-cooled metal-cutting hydraulic band saw, especially for frequent 90° and 45° metal cutting. They consider it a worthwhile investment because it’s quieter, cleaner, more accurate, and more efficient than an abrasive chop saw—plus maintenance can be DIY-friendly (notably via low-cost 608 ZZ bearings). If buying new, it’s more expensive than chop saw upgrades, but the host suggests buying used as a good path.


Unique points mentioned (consolidated list)

  1. Metal-cutting band saw dramatically changed the shop workflow.
  2. Versus abrasive chop saws: quieter, less dust/sparks, faster workflow, less cleanup.
  3. Diamond blade upgrade on chop saw helped slightly, but didn’t fix noise/time/cleanup.
  4. Evolution-style chop saw upgrade mentioned as an intermediate step.
  5. Used acquisition had uncertain age/heavy use but still worked well.
  6. Identified model: JET HVBS-7MW, 7” x 12” class.
  7. Hydraulic downfeed with switch-off at the bottom of the stroke.
  8. Water cooling benefit: minimal mess; minor dribble only (but possible water fling if misadjusted).
  9. Coolant draining described: tip tube/work toward tray; coolant returns via pump loop.
  10. Prior coolant was dirty/nasty; host replaced it.
  11. Uses Master Fluid Solutions Trim SC520 (concentrated).
  12. Claim: no rust after months with leftover coolant.
  13. Example of incremental ~1/8” sections; host says abrasive chop saws can’t do this similarly.
  14. Typical materials: small square stock, angle iron, tube.
  15. Uses Bora Portamate 3-in-1 stands for support/rolling/stationary setup.
  16. Ordered spare blade (93” 8½ TPI) to prevent downtime for customer projects.
  17. Repair: blade popping out due to locked bearing.
  18. Repair method: replaced bearing type 608 ZZ skateboard-wheel bearings.
  19. Cost-effective parts: 20-pack for $10 (~$0.50 each) avoiding a $53 backordered assembly.
  20. Added magnetic storage for tools/wrenches.
  21. Inspection cover shows pump/drain path (tray → strainer → tank → pump).
  22. Topping off with distilled water to reduce contaminants and rust.
  23. Hydraulic speed adjustment via wheel; recommends very slow descent depending on metal thickness.
  24. Repeat cuts: can gang multiple identical tubes at once (claimed/demoed).
  25. Final recommendation: band saw is a good investment for frequent metal cutting (especially 45°/90°); buy used if possible.

Speakers / views

Only one main speaker is present in the subtitles; no distinct secondary speakers are delivering different viewpoints.

Original video