LAPIDARY EQUIPMENT & SUPPLIES

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Sioux City, IA 51104

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Amethysts Geodes
UPDATED 11/30/2010

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Vibrating Laps

Rociprol lap machines!

Can you imagine lapping a BIG slab of Petrified Wood?
This machine is BUILT TO LAST.

Some of the best vibrating flat lap machines ever built! PERIOD!
Those who had them 20 years ago, STILL have them and love them! 
 Optically flat surfaces!
3 sizes to choose from!  20" and 24" and even a 30" !  Built to last a lifetime!
Grind and polish rock slabs, glass, and even metal!!! Crating charge is $80.00 for 20 and 24 inch models. 30 and 36 models have a $160 crating charge.
Shipped Motor Freight collect or prepaid if desired
CLICK HERE FOR INSTRUCTIONS on how use use lap ( Adobe Acrobat needed)

PAN SIZE  Price  
20" Rociprolap $ 1950.00
24" Rociprolap $ 2150.00
30" Rociprolap $ 2600.00
36" Rociprolap $3600.00

Extra plates

20" Lap Plate   Spare $475.00
24" Lap Plate   Spare $700.00
30" Lap Plate   Spare $1200.00

SPARE PARTS

Nylon Bearings set of 6 $19.00
Bearing support steel disc (6) $19.00

 


Diamond Pacific
"Vi-Bro-Laps" 

Both the 20" & 27" Vi-Bro-Lap models give you the satisfaction of achieving flat surfaces on geode halves,
 agate, petrified wood & other material, yet relieves you of the necessity for constant attention to the
lapping process. --Diamond Pacific

      Free Lap grit and polish kit!
                                


Features:

bullet Can accommodate a number of specimens at the same time
bullet Tempered aluminum lap plate is grooved in a cris-cross pattern, permitting abrasive particles
 to circulate between the lap plate and the work piece so that the abrasive itself is continuously
being crushed into a smaller size--this reduces the number of different grit sizes which are needed
bullet Turn over the lap plate to the polishing pad side which is cemented on. Combined with polishing
compound, a fine mirror-like finish is produced easily
bullet Lap plates are manufactured from heat-treated aluminum alloy to produce a tough, wear-resistant
surface. Each surface has milled V-grooves in a square grid pattern.
bullet Suspension is controlled by aircraft strength cable, adjustable for fine leveling to keep work pieces
evenly distributed over the lap plate surface.
bullet 20VL measures 21"W x 21"D x2 1"H
bullet 27Vl measures 28"W x 28"D x 30"H
Frame is welded, fabricated steel for stability
Comes with 1/3 HP motor, one medium, polish pad & galvanized circle. 
Export model available
   
620-41-108415 -- 20" Model 20VL
Crating Fee Additional $150.00
$1880.00*
6200-41-108415X -- 20" Model 20VL 
Export Model
Crating Fee Additional $150.00
$2175.00*
620-41-108423 -- 27" Model 27VL
Crating Fee Additional $197.00
$2150.00*
620-41-108423X -- 27" Model 27VL 
Export Model
Crating Fee Additional $197.00
$2350.00*
*Crating Fee NOT Included in this price. 
All items shipped FREIGHT COLLECT . 

 

                                                                                                                                            
 

392 Color.JPG (126426 bytes)

Covington Automatic Vibrating Laps
Designed to abrade & polish automatically
Inertia of the heavy rock slab holds it relatively still while the lap pan vibrates underneath
The vibration replaces the circular rotation used by conventional lapping machines
New design & grooved plate allows faster cutting
Bumper ring prevents gemstone damage
Pad insert enables work piece to be polished in the same pan
One thumb screw releases pan for easy cleaning
Comes complete with 110V, 60Hz motor, polish pad, bumper ring, instructions & guarantee

Model #392 10" -- $320.00

 

Model #394 12" -- $370.00

Model #396 16" -- $460.00



 
Extra Pan for 10"     $75.00
 
Extra Pan for 12"      $95.00
 
Extra Pan for 16"    $135.00

 
Extra Pad for 10" Lap Pan     $5.00
Extra Pad for 12" Lap Pan     $6.50
Extra Pad for 16" lap Pan     $9.50

________________________________________________________________________          

Raytech's  Hustler H-15D
For polishing slabs, clock faces and geode halves
Hustler 15 Deluxe
Hustler 15 cuts faster than 10" laps and has 2-1/4 times as much working area.
 A smoothly sawed slab or geode can be ground and polished in 3-7 days.
 Adjustable thumbscrew provides convenient 10-second leveling while the motor is running.
 Pan is quickly removable for easy cleaning.
 

$745.00

SPARE PARTS

Grooved Pan for grinding   $125.00
Smooth pan for polishing   $125.00
Polishing Pad only   $ 14.00
Bumper Ring   $ 14.00
 



Grit Sequence for Lapping

     The choice of abrasive grit sizes for the lapping process follows somewhat
that in tumbling or stone polishing procedures. The choice also depends upon
the material, and preference of the person doing the work. The following sequence
of silicon carbide grits is commonly used, and will generally produce a satisfactory
polish on most materials:  60/90, 220, 400, 600, 800+  and then a polish.
Generally, the more steps the better the polish. For more information on grits, click here:  GRITS.

 


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, Graves


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