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06 · Coolant and pumps · Newark, DE

Coolant mixed at 6 to 8 percent, checked every shift, and a pump that matches the plate.

Semi-synthetic CNC coolant concentrate sold by the 5-gallon pail, with the refractometer factor supplied, and replacement coolant pumps matched to the head, flow, immersion depth and voltage on your old nameplate. For machine shops across the United States.

Concentrate: per 5-gal pail Pumps: per pump Quoted on inquiry

Ask for a coolant quote (302) 366-0113

Coolant concentration being checked with a refractometer at a lathe sump — Two drops from the sump, not from the nozzle. Read it, multiply by the factor, write it down.

Two items · each quoted on inquiry

What goes in the tank, and what moves it.

Coolant problems are nearly always concentration problems. Pump problems are nearly always sludge. Buy the right product and you still have to look after both.

Item 06.1

Coolant concentrate being poured from a 5-gallon pail into a mixing bucket

Concentrate into water. Never water into concentrate, or it goes lumpy and stays that way.

Semi-synthetic coolant concentrate · 5-gallon pail

Semi-synthetic coolant concentrate.

Concentrate is sold by the 5-gallon pail. Mix it at 6 to 8 percent for most steel work and check it with a refractometer every shift. A semi-synthetic sits between a straight soluble oil and a full synthetic: enough oil for lubricity on steel and stainless, enough synthetic content to stay clean and not go rancid over a long weekend.

It suits mixed shops running aluminium, mild steel, 4140 and some stainless through the same machines. It does not suit heavy broaching or deep-hole gun drilling, where a straight cutting oil is the right answer, and we'll tell you so rather than sell you a pail.

Every pail ships with its refractometer factor. The reading on the prism is in Brix. Multiply it by the factor and you have percent concentration. A 1.0 factor is rare, so don't assume it.

Type: Semi-synthetic, water-miscible
Pack: 5-gallon pail
General steel: 6 to 8 percent
Check: Refractometer, every shift, factor supplied with the pail
Makes: About 63 to 83 gallons of mix per pail at 6 to 8 percent

Price basisPer 5-gallon pail, quoted on inquiry. Several pails on one order ship together and cost less per pail in freight.

Freight and lead time stated on the reply

Ask for a coolant quote

Mix ratios and refractometer readings

Mix by the operation, not by eye.

Starting points for a semi-synthetic. The pail's data sheet wins where it disagrees. The Brix column assumes a factor of 1.5; use the factor on your pail.

Target concentration by operation, with Brix reading at factor 1.5
Operation	Target mix	Brix reading	Why
Surface and cylindrical grinding	3 to 5 %	2.0 to 3.3	Cooling and swarf flushing matter more than lubricity
Milling and turning, aluminium	5 to 7 %	3.3 to 4.7	Enough film to stop built-up edge without foaming
Milling and turning, general steel	6 to 8 %	4.0 to 5.3	The default. Rust protection on the table overnight
Drilling, tapping, stainless	8 to 10 %	5.3 to 6.7	More lubricity at the cutting edge and in the thread

What a low reading does

Below about 4 percent on steel work you get rust on the table and in the vise within a weekend, and the bacteria count climbs. The tank starts to smell on Monday morning. That smell is the coolant being eaten.

What a high reading does

Above 10 percent it foams and leaves a sticky film on the enclosure. Worse, it irritates skin. Operators start wearing gloves they didn't need before. It also costs you concentrate you poured down the drain.

Item 06.2

An immersion coolant pump lifted out of a machine tank with sludge on the intake

Sludge on the intake screen. Clean the tank before the new pump goes in, or it will look like this in a month.

Coolant pumps · per pump

Coolant pumps, matched to the nameplate.

Replacement immersion and flange-mount coolant pumps for machining centres, lathes and grinders. We match on four things from the old nameplate: head (how high it lifts, in feet or metres), flow (gallons or litres per minute at that head), immersion depth (how far the pump body sits below the mounting flange), and voltage and phase.

Get immersion depth wrong and the intake either sucks air at low tank level or hits the bottom. Get voltage wrong and it is a wiring job, or a dead motor. Photograph the plate straight on, then measure flange to intake with a tape.

Through-spindle coolant at 300 psi and up is a different pump entirely: a high-pressure unit with its own filtration. Ask, but expect a longer conversation and a longer lead time.

Types: Immersion, flange-mount, some inline
Match by: Head, flow, immersion depth, voltage, phase, frequency
Mounting: Flange bolt pattern and outlet thread from the old pump
Not covered: Motor rewinds, pump repairs

Price basisPer pump, quoted on inquiry. Price rises with head, flow and three-phase motors.

Lead time stated on the reply, by model

Ask for a coolant quote

The shift check

Two minutes at the sump saves a tank dump.

Take the sample from the sump, after the pump has run a few minutes. Nozzle samples read high.
Wipe the prism, two drops, close the flap, read against a light. Multiply by the pail's factor.
Top up with premix at the target, not with water or neat concentrate.
Skim tramp oil off the surface. Way lube floating on top feeds the bacteria.
Write the reading on the machine. A trend tells you more than one number.

Tramp oil comes from way lube and hydraulic leaks. If it builds fast, check the way wipers before blaming the coolant.

From inquiry to delivered pail

How a coolant or pump order runs.

Tell us the tank and the workTank size in gallons and the materials you cut. Name the coolant you run now, too. For a pump: nameplate photo and immersion depth.
We match concentrate or pumpIf what you run now is working, we say so. Switching coolant mid-year for no reason is how tanks go bad.
Reply with basis and freightPrice basis per pail or per pump, typical lead time, and freight. Not binding until you confirm.
Ships with the dataPails ship with the safety data sheet and refractometer factor. Pumps ship with the new nameplate data for your records.

We don't sell coolant by the gallon decanted from a drum, and we don't clean tanks. If yours smells, drain it, clean it with a system cleaner, and charge fresh. Topping up a rancid tank wastes the concentrate.

Pushing harder cuts through fresh coolant? Check what the spindle can take.

Open the cut-load calculator

Before you order

What buyers ask about coolant and pumps.

Can I mix this with the coolant already in the tank?

Don't. Different emulsifier packages can split each other. Drain, clean and charge fresh when you change product.

Does it work with tap water?

Usually, if the water is not very hard. Very hard water leaves residue and shortens sump life. If you see a scum ring, test the water hardness and consider softened or deionised water for mixing.

The old pump plate is gone. Now what?

Send the machine make and model, the immersion depth, the outlet thread and the motor voltage. We can often find what the builder fitted. See how sourcing works for the photos that help.

Who is this not for?

Shops that need a neat cutting oil for broaching or gun drilling, and shops wanting a tank service contract. We supply the product and the pump. Not the service.

Concentrate or pump

Inquiry only. A price basis comes back by phone or email and nothing is binding until you confirm.

Name

Phone

Ship-to or shop address

What you need

Pails, or pump plate data (optional)

Notes (optional)

You may contact me about this inquiry. I have read the privacy policy and the terms.

Or call (302) 366-0113 and read us the pump plate.