20", 24", 30" & 36" Rociprolaps®

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These Reciprocating and Vibrating Lap Machines Feature:
-Heavy Duty Sealed Ball Bearings.
-Heavy Cast Iron Base and Lap Plate.
-Heavy Duty 110v 1/3 Hp Motor. *220v 50hz Model Available.
-Stainless Steel Splash Guard. * Additional Charge for 220v model.
These Rociprolap® machines are a precision built machine designed to eliminate the labor-intensive work of lapping and polishing. This machine operates as its name implies, the lap plate revolves slowly and reciprocates 575 times per minute simultaneously. It is balanced and does not need to be bolted down. Extremely quiet in operation and built to industrial standards, all cast iron and steel construction. The lap plate’s surface is machined flat to a very close tolerance, capable of lapping to millionths of an inch in flatness. The lap plate also has 3/16” x 1/2” pockets to maintain fresh grit and lubrication reservoirs. The Rociprolap® will lap rock, wood, metal, glass or any material which must be ground flat. It is especially suited to lap compressor valves. Each unit is sold complete with Formica splash guard, bumper ring, 1/3 hp motor, one set of 12 nylon ball bearings, one set of 6 steel discs, and a complete set of instructions. Covington Engineering Guarantees the machines for one year from date of purchase against any defects. *This excludes the nylon thrust bearings and steel disks. Ships Freight Collect, Call for Quote!  A $ 80.00 Crating Fee on 20" & 24" Models will be added to freight. A $ 160.00 Crating Fee on 30" & 36" Models will be added to freight. A $ 40.00 Crating Fee on Extra Plates will be added to freight. * We also carry all replacement parts.


Machine Size

Model No.
Shipping Weight
Price


20" Rociprolap®

DNS020
245 lbs
$1799.00

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24" Rociprolap®

DNS024
275 lbs
$1979.00

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30" Rociprolap®

DNS030
430 lbs *2 boxes
$2429.00

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36" Rociprolap®

DNS036
510 lbs *2 boxes
$3329.00

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Extra Plates:

20" Rociprolap® Plate Only

DNS120
145 lbs
$446.00

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24" Rociprolap® Plate Only

DNS124
165 lbs
$656.00

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30" Rociprolap® Plate Only

DNS130
185 lbs
$1,116.00

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Consumables:

12 Nylon Bearings

DNS212
1 lbs
$11.00

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6 Hardened Steel Bearing Supports

DNS206
1 lbs
$17.00

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Polish Pads

DNS220 DNS224 DNS230 DNS236
3 lbs
20" $ 18.00, 24" $ 22.00, 30" $ 27.00, 36" $ 32.00

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Automatic Vibrating Lap

Takes all the work out of lapping. Just load, start & walk away

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The vibrating lap is designed to abrade and polish automatically. The inertia of the heavy rock slab holds it relatively still while the lap pan vibrates underneath. This action replaces the circular rotation used by conventional lapping machines.
Our new design and grooved plate gives you 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, 60 HZ motor, polish pad, bumper ring, instructions and guarantee.


Model No. 392 -- 10" Vibrating Lap (Ship wt. 20 lbs.)

$268.00

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Model No. 394 -- 12" Vibrating Lap (Ship wt. 25lbs.)

$319.00

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Model No. 396 -- 16" Vibrating Lap (Ship wt. 35lbs.)

$404.00

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LG 536 -- Lapping Grit Kit Grit Kit Contains: 1 lb. each of 80, 120/220, 400 silicon carbide grit.

$12.00

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Extra Polish Pads:
10" Polish Pads

$5.00

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12" Polish Pads

$6.00

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16" Polish Pads

$9.00

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Extra Vibrating Lap Pans:
10" Lap Pans

$65.00

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12" Lap Pans

$81.00

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16" Lap Pans

$115.00

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Extra Bumper Rings:

10" Bumper Ring

$5.00

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12" Bumper Ring

$6.00

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16" Bumper Ring

$7.00

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