Machine Tool Recyclers

Scintillating scrap carbide recycling

prices; next day payment

2005 Granart Road,

Sugar Grove IL 60554

Phone: 630-964-5030

Email: mtri@machinetoolrecyclers.com

Website: www.machinetoolrecyclers.com

Ship by Truck

Shipping tungsten carbide

by truck

How it works:

Day 0: Phone for a price;

written confirmation and

terms emailed.

Day 1: FedEx truck

scheduled for pickup at your

convenience; bill of lading

and other paperwork emailed

or faxed to you.

2 & 3: FedEx picks up and

delivers shipment.

Locations west of the

Rockies, Canada or Mexico

add a day or two.

We use FedEx Trade

Networks to broker your

shipment across the border.

Day 4: Contents weighed and

inspected.

Day 6: You receive the check

in the mail.

Day 7: Slack day, just in case.

Shipment √ list:

Heavy duty pallet, easily

sufficient for the load.

Load centered, balanced

and secured.

Containers filled below

capacity; weight even.

Each container’s lid

tightly secured.

FedEx shipping label

attached;

gross, tare and net clearly

marked.

The four buckets below are

arranged symmetrically,

each 75% full. The lids are

hammered shut.

The buckets have been

strapped and shrink

wrapped around, (the belt

and suspenders theory);

1 dimension.

The buckets have been

covered with plywood and

strapped across both ways;

dimensions 2 and 3.

Spark Testing Carbide & HSS

T15

narrow orange sparks

with forks

M1

wide orange sparks

no forks

M2

narrow orange sparks

no forks

Iron

lots of long white

sparks 24" or longer;

feels “soft/light"

Not worth shipping;

sell locally

How to use the spark test

Not sure what material you've got? A spark test can answer your questions.

Get out your grinding wheel and use these photographs as a guide.

Tungsten carbide, has a rockwell hardness of 88 to 90, second only to diamonds;

its specific gravity is 16, almost as heavy as gold, twice as heavy as high speed

steel.

Tungsten carbide is very heavy and very hard; very hard is the basis of this test:

If your scrap can only throw a very short, orange spark, it's tungsten carbide.

If it sparks red/orange, 12 to 18 inches long, it is worth shipping to us.

if it sparks long and white, it is not.

We have listed specifications for many high speed steels on our hss spec page

Carbide

red, very

short, 2"

spark

feels

“heavy”

(very

dense)

M42

wide

orange

sparks

with

forks

Carbide Soft Scrap (Sludge/Swarf)

Tungsten carbide grinding sludge Can you tell the quality of the carbide soft scrap without sending it to a

lab?

No, you cannot.

A niton gun reading is likely to be way off

But because tungsten carbide sludge is

so heavy, you can estimate the quality of the carbide sludge by its weight.

Very heavy is very good:

not so heavy is not so good.

Soft scrap quality guesstimater

<— 55 gallon drum almost full

2000 lbs = 40 lbs / gallon very good

1200 lbs = 24 lbs / gallon might be ok,

depends on moisture and other elements

600 lbs = 12lbs / gallon not so good;

water = 8 lbs / gallon

New Endmills & Drills

We carry one brand of round tools and one brand

of inserts (web pages in process).

Our variable helix, variable pitch, "GorillaMills"

are made from the highest transverse rupture

strength, nano-grain tungsten carbide substrate

available.

These mills are engineered to run at 50 to 150

percent faster through all materials, at a greater

chip load, than our very good, Standard sub-

micrograin—also made in the USA—mill.

In fact, we present different speed/feed

recommendations because of this difference

Several companies manufacture end mills that vary

helix and pitch to reduce harmonic vibration. The

varying helix and pitch is a patent protected

design.

Most of them use a very good design patented by

a Japanese company.

Gorilla, however, holds its own US patents. We

have found that its improved designs usually

produce 5 to 10 percent better performance than

the other variable helix/pitch endmils, especially

in harder materials like Inconel and titanium.

Recycling tungsten carbide & hss scrap