Rock Shop Finishing  Equipment Polishers, Laps and Saws
SpiritRock Shop
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Lortone Flat Laps
The Lortone FL-15 Vibrating Flat Lap is one of the favorites for rockhounds who are looking to polish their cut
specimen faces, polish slabs for display or clock faces. The FL-15 from Lortone is also great for polishing Bookend
sets in agate or your other favorite stone.

How to use your flat lap
There is much discussion about how to polish on these machines, here is what we have learned by trial and error.
First, to get quality finishes you must use graded abrasive(100 grit), not graded range (60/90 grit). Second, you
must really clean after each grit to prevent contamination of the next step. All it takes is one or two 100 grit grains to
ruin a 220 grit finish. This becomes more critical as the grit becomes finer. That is why we prefer the Lortone Flat
Laps over the competitors. Lortone provides 2 pans with each unit. One pan for grinding and one for polishing. This
reduces the chance of contaminating the polishing stages with the earlier surfacing stages. We recommend
complete scrubbing of each specimen after each stage or grit.
Okay, now to the grit, What grit you start with basically depends on how accurate the cut is from your saw. If you
have a perfect cut the number of stages is reduced. If you see saw marks on your specimen, sit down, this one's
going to take a while.

Our recommendations are;
Smooth cut specimens....start with 220 grit for 8-12hrs, clean, 600 grit for 8-12hrs, clean, 1000 grit for 8-12 hrs,
clean, Tin Oxide or Cerium Oxide polish for 8-12 hrs.
Saw Marked specimens....These are the toughest...I generally run these through more grit stages to obtain the
best finish. Start these with 80 or 100 grit. Lap these until you can mark the surface of the specimen with a pencil
and all the pencil marks disappear completely within 5 minutes. Do this for every stage of grit and you will never go
wrong. Spending the extra effort in the rough stages will produce better results in the final polish stage. I have one
specimen of Brazilian banded Agate that my saw jammed on and gouged the face. It is such a stunning stone that I
decided to grind this gouge out rather than re-cut it and lose more material. I put this one in with every batch of 80
grit I do. When the other specimens are done with this stage and the agate is not, I clean it up and put it on the shelf
waiting for the next 80 grit stage. Sooner or later it too will be ready to move on. The point here is to not get in a
hurry. It took mother nature millions of years to make this specimen, so if it takes you a few days, weeks, months or
years to polish it you are still way ahead! Anyway, back to the lapping....after the 80 or 100 grit stage, clean, move
to 400 grit for 8-12 hrs, clean, 600 grit for 8-12hrs, clean, 1000 grit for 8-12 hrs, clean, Tin Oxide or Cerium Oxide
polish for 8-12 hrs.
There are other grit grades that you can try. Don't be afraid to experiment and don't get in a hurry. 1200 grit
produces some wonderful looks on some stones and there are a wide variety of polishes to choose from. Some
work better on different types of stones, some you will like, some you will throw away, depending upon what you are
trying to polish. Each polish has it's special use and it takes a while to learn them all.

Tips and Tricks to make your polishing easier
We always place a drop or two of Palmolive liquid dish soap in our grit slurry mix. On the FL-15 we use 4-5
Tablespoons of grit mixed with water until it just starts to splash at the edges by the outer pan ring. Add 1 or 2 drops
of the Palmolive allows the grit to better adhere to the surfaces of the rock you are lapping and makes the process
work better. We use a plastic spray bottle to add water to our slurry and also have a Lortone overhead drip watering
system slowly adding drops of water throughout the lapping process to maintain the consistency of the slurry. If this
is your first time using a lap, be aware that this is not an indoor sport. Great in a garage or basement, but these
laps can make a mess of the surrounding area in a hurry if the slurry gets too wet. Since the desired mix is at the
very edge of when it slurry starts to splash, it normally splatters out during the process.

Protecting your Rocks from Damage
Another trick we learned from Wally at the Fallon Rock shop was to cut up old (or new) inner tubes from yard
machinery into wide rubber band like strips and place them around your rocks or geodes to protect them. You can
even use 2 or more to get the correct thickness of protection you need. The object is to prevent rock to rock
contact. Leave the factory outer bumper ring in if you use this method. We have setup bins to store used bands in
divided by the grit size to allow reuse without contamination of grit size.

Polishing Slabs
Polishing slabs is more difficult. Normal slabs are too light to polish well without being weighted. Most
recommendations we have received were to use lead weights (which you must make yourself) I ran into an old
rockhound who asked, "Why buy lead if you already have rocks" made sense to us so we now polish our slabs
using cut face rocks attached to the slab with small multiple pieces of double back tape. If your weight rock is larger
in diameter than the slab, protect the weight rock edges. If your weight rock is smaller in diameter than your slab, we
like 1/4" plexiglass or acrylic cut larger than the slab, taped to slab, then taped to the weight rock. Remember, the
objective here is to evenly distribute the weight over a surface larger than your slab.  An off-center weighting will
cause a very bad finish. Once again the best way to get into this is just jump in and give it a try. Remember, it's a
hobby...a lifestyle...NOT a job. I believe it was Thomas Edison who said something to the effect that he did not fail
many times trying to make a light bulb...he just learned many ways NOT to make a light bulb.

We hope this helps you in your efforts at polishing rocks using a vibrating flat lap
Item # FL-15-U1
Used "as is" Lortone
15" Vibrating Flat Lap

$495.00
We have a Lortone manufacturing gently used FL-15 Vibrating Flat Lap in stock ready for local pickup in Brevard, North Carolina. A
proven workhorse the FL-15 vibrates at 1600 times per minute giving consistent and excellent abrasion to your specimen. This comes with
2 each 15" pans, one for grinding and one for polishing. Each pan includes a 3/8 OD polyethylene tube bumper ring. These pans are
made of aluminum and the polish pan comes with its own polishing pad. Pans are easily removed for changing or cleaning. Please e-mail
any questions to ...
ncspiritrock@gmail.com  for any questions
WE DO NOT SHIP THIS FL-15! IT IS LOCAL PICK UP ONLY  IN WESTERN NORTH CAROLINA
Item # LSS-14P
Used Lortone 14" Rock Saw in
"as-is" condition

$795.00

Local Pickup only in  North
Carolina
"As-Is" condition used Lortone LSS-14P Panther rock saw
From the Industry standard Lortone manufacturing we have used 14" Panther saw with a Barranca Diamond 303C 14 x .070 x 1-5/8
blade. The blade has only made 2 test cuts. The saw looks to be in good condition, it runs smooth and appears to have been well
taken care of. The pictures show the physical condition of the saw. It is sold "as-is" due to being a used machine. We cannot
warranty any used machines, they may run for many years or just a few days. The pulleys and belt look good. We have not checked
blade to vise alignment The feed motor has been changed to a standard feed speed of 8 inches per hour, similar to the 12" models.
The saw comes additionally with the fast cut 17 inches per hour panther feed motor as well, so you have the option of changing feed
speeds. This saw has a 5" x 6 1/2" capacity original Lortone LSS-14P vise. Use this saw with Oil Coolant only! (The grey rubbermaid
utility cart does not come with the saw. This listing is for the complete saw and extra feed motor only.)
WE DO NOT SHIP THIS SAW! IT IS LOCAL PICK UP ONLY
IN WESTERN NORTH CAROLINA
Understand that every rock will cut differently and that every customer demands different results. Thin blades will wander more than
heavier, sturdier blades. Hard rock demands premium oil coolant. Fast feed rates can mean greater chance of blade damage if
something slips or breaks during the cut. Do some homework and be willing to sacrifice some things to get what's really important.
Before any other components, go for the best blade that you can afford. The blade will dictate the resulting smoothness and flatness
and is crucial in getting a good cut. A good cut makes lapping and polishing much easier!
Item # LSS 034-090
Used Lortone 8 inch 4 wheel
Stainless Steel Polishing
Arbor with Two End Polishing
Heads

$1395.00

Local Pickup only in  North
Carolina
"As-Is" condition used Lortone 8" 4 wheel Stainless Steel Polishing Arbor
From the Industry standard Lortone manufacturing we have a used Pro-Series Arbor with Water Cooling System 8”, 4 Wheel, #034-
090   (22” W x 17” L x 11” H). It comes with lots of accessories, ready to work in your lapidary workspace. It comes with the following
listed attachments/accessories which includes part numbers. The total cost new for this was $2443.80 + shipping
If you hate having to replace equipment due to rust or breakage, you’ll appreciate the stainless steel construction Arbors! Lortone
used in-house CNC laser to precisely cut each machine from corrosion resistant 18/8 grade stainless steel and then assembled them
with 3/4” stainless steel shafts. Custom bored drip holes and a complete water cooling system, including brass fittings, to each of
these stainless steel arbors. Add your wheels or expandable drums and you are ready to go! Includes spacers, flanges and 2 1/2” x
1/2” motor pulley.
1/3 HP Baldor Motor #300-022  110V/60HZ, 1725 RPM, Split phase, capacitor start. Resilient mount, #48 frame, single 1/2” shaft,
cord, and switch. Clockwise rotation from shaft end. Manual reset thermal
2 each Expandable Drums  8” x 3” 3” x 25-7/32” #073-014   Drums expand when in use to hold sanding belts in place. Belts can be
easily changed when stopped. Made from carefully formulated rubber and flexible enough to blend to
the stone. Maximum rpm is 1750.
Disc  8”dia 1 micron polishing disc and 1 felt polishing disc both 8”
Cast Aluminum Polish Heads  8” Dia. 3/4” RH Thread #515-028 3/4” LH Thread #515-029
The sturdy cast aluminum alloy heads are precision machined to run flat and true. 3/16” resilient rubber bonded to the face. Includes
2  8”diameter discs; 1 micron polishing disc and 1 felt polishing disc

Kingsley North Diamond Grinding Wheels 8 inch metal bonded diamond grinding wheels, with plastic center core. Wheels are made
with commercial grade diamonds for longer grinding life, clean and faster cutting.  
8" X 1-1/2" 60 grit     1-1027   
8" X 1-1/2" 100 grit   1-1029   
8" X 1-1/2" 220 grit   1-1031 (2ea)
8" X 1-1/2" 360 grit   1-1032 (2ea)
8" X 1-1/2" 600 grit   1-1033
Eastwind Diamond Belts 8" x 3" Belts Full-Coated, Resin Bonded, Flexible Diamond Grinding and Polishing Belts. Great for lapidary,
glass, granite, ceramic and lapping applications. They run water-cooled, allowing faster grinding at a substantially reduced cost, and
providing a cleaner, safer work environment. A high concentration of diamond particles on every belt, ensures an extraordinary
smooth surface finish. - 8" x 3" Belt Size
(3-0365) Diamond Belt - 8" x 3", mesh 400 New
(3-0366) Diamond Belt - 8" x 3" mesh 600 1 New + 1used
(3-0364) Diamond Belt - 8" x 3", mesh 325  used       

6061 machined aluminum wheel spacers for correct spacing of different wheels on arbors Dimensions are 3/4” ID x 1” OD.   4 of
each length as listed below
1/4”       # 105-002
3/4”       # 105-006
1”           # 105-008
1-1/2”    # 105-010
2”           # 105-013
               Full length tool rest bar with adjustable sliding tool rest make this package complete!
         
WE DO NOT SHIP THIS Unit! IT IS LOCAL PICK UP ONLY
IN WESTERN NORTH CAROLINA

New items cost breakdown
Pro-Series Arbors with Water Cooling System 8”, 4 Wheel 034-090  
$595.00
1/3 HP Baldor Motor #300-022 $ 229.50
2 each Expandable Drums  8” x 3” 3” x 25-7/32” #073-014   $ 97.50ea =$195.00
Cast Aluminum Polish Heads  8” Dia. 3/4” RH Thread #515-028 3/4” LH Thread #515-029 $74.50 ea =$149.00
Disc  8”dia $ 7.95 ea = $15.90
Kingsley North Diamond Grinding Wheels 8 inch ($826.00 for all 7)
8" X 1-1/2" 60 grit     1-1027   $118.00
8" X 1-1/2" 100 grit   1-1029   $118.00
8" X 1-1/2" 220 grit   1-1031   $118.00   (2ea)
8" X 1-1/2" 360 grit   1-1032   $118.00   (2ea)
8" X 1-1/2" 600 grit   1-1033   $118.00
 Eastwind Diamond Belts 8" x 3" Belts   (
$372.00)
(3-0365) Diamond Belt mesh 400   $93.00   New
(3-0366) Diamond Belt mesh 600   $186.00  1 New + 1used
(3-0364) Diamond Belt mesh 325   $93.00   used
6061 machined aluminum wheel spacers Dimensions are 3/4” ID x 1” OD. 4 each length as listed below (
$61.40)
1/4”       # 105-002     $2.25ea        =$9.00
3/4”       # 105-006     $2.45ea     = $9.80
1”           # 105-008     $2.95ea     = $11.80
1-1/2”    # 105-010     $3.60ea     =$14.40
2”           # 105-013      $4.10ea           =$16.40  
Full Length 4 wheel 8" Arbor Tool Rest for
$64.50...no longer available from Lortone
     shipping costs were incurred in addition to these costs

This Package is Very Reasonably priced. Local pickup in Brevard or Lake Toxaway, North Carolina only.
email us at
ncspiritrock@gmail.com
for any questions.