Wet Universal Tool Grinder Water Pump 360 Degree Work Head 90-630mm Blade

Grind a tool dry and the edge gets hot enough to change colour. A blued edge is an edge that has lost its temper — it feels sharp off the machine and goes dull in the first hour. That is the argument for grinding wet, and it is why a tool grinder with a water pump is not the same machine as one without.

The MA-250 is a universal tool grinder with a 40 W water pump built in and a Water Pump Switch of its own on the machine, separate from the Power Switch. Profile cutters, planer knives, router cutters and circular saw blades all set up on the same work head, and coolant runs at the point where the wheel meets the edge rather than being sprayed over the work area.

The work head swivels 360° over a ∅360 mm circle and travels 250 mm, so a new face is reached by turning the head rather than by taking the tool out and setting it up again. Grinding wheel height runs over 170 mm on a graduated handwheel, and the spindle turns at 3600 r/min on a 370 W motor.

The work table is a black slotted table with a tray underneath it to catch the coolant, and the wheel runs behind a guard. Blade capacity is ∅90 mm to ∅630 mm. The machine stands 760 * 650 * 1300 mm — the smallest footprint of the universal grinders in this range.

The water pump is the difference. Everything else on the MA-250 is the same argument as any universal grinder — but the pump is why the edge survives.

• 40 W water pump — grinds wet, so the edge does not burn and does not lose its temper.
• Water Pump Switch, separate from the Power Switch — the pump can be switched independently of the spindle.
• Work head swivels 360° over a ∅360 mm circle — the tool is turned into the wheel instead of being re-chucked for each face.
• Stroke 250 mm — enough travel to run a large blade past the wheel in one pass.
• Grinding wheel height adjustment 170 mm — brings the wheel to the work and locks it there.
• Graduated handwheels — wheel height and wheel angle are both set on handwheels with scales.
• 3600 r/min spindle speed — a high wheel speed for a fine, cool edge on carbide and HSS.
• 370 W motor — spindle power for touching up and re-profiling tooling.
• Sharpens profile cutters, planer knives, router cutters and saw blades — four tool types on one work head.
• Saw blade capacity ∅90 – ∅630 mm — from small trim blades up to the blades a panel saw runs.
• Slotted work table with a coolant tray — the table holds the tooling and the tray catches what comes off it.
• 760 * 650 * 1300 mm — the smallest footprint of the universal grinders in this range.

For a small shop, the MA-250 is the grinder that fits in the corner and still gives a wet edge.

• Wet, not dry. A 40 W water pump is built into the machine, so the edge never gets hot enough to lose its temper — which is the difference between a tool that stays sharp and one that looks sharp.
• The pump has its own switch. Power Switch and Water Pump Switch are separate, so the pump does not have to run every time the spindle does.
• 360° of swivel does the work. The head turns over a ∅360 mm circle and travels 250 mm, so a new face is reached by turning the head instead of re-chucking the tool.
• Four tool types, one work head. Profile cutters, planer knives, router cutters and saw blades all set up on the same head — one machine, one footprint, one set of spares.
• ∅630 mm blades. Blade capacity runs from ∅90 mm to ∅630 mm, so the same machine does the trim blades and the panel saw blades.
• The smallest footprint in the range. 760 * 650 * 1300 mm — it fits where the other grinders in this range will not.

Yes. A 40 W water pump is built into the machine and delivers coolant to the point where the wheel meets the edge.

Yes. The machine has a Power Switch and a Water Pump Switch as two separate switches, so the pump runs only when it is wanted.

Profile cutters, planer knives, router cutters and circular saw blades. They all set up on the same 360° swivel work head.

∅90 mm to ∅630 mm.

On graduated handwheels for wheel height and wheel angle, with 250 mm of stroke and 170 mm of height adjustment on the head.

3600 r/min on a 370 W motor.

760 * 650 * 1300 mm — the smallest footprint of the universal grinders in this range.

Yes. The work table is a slotted table with a tray underneath it to catch the coolant.

Small and mid-size woodworking and metal shops that sharpen their own cutters and blades and want a wet edge without a large machine.

MOQ is 1 set, lead time is 5–8 working days, payment is by T/T, and the machine ships in an export-standard plywood case.