© Precision Finishing Inc. 2018

Precision Finishing Inc.  |  1800 AM Drive Quakertown PA, 18951  |  E : info@precisionfinishinginc.com  |  O : 215.257.6862

Checker Industries   |   1280 Renton Rd, Pittsburgh, PA 15239   |   E : info@1800checker.com   |    O : 412.795.4414

a division of precision finishing

Composition

STEEL

Bulk Density :

Finish :

Cut :

300 (lbs/ft)

Polished

None

AVAILABLE SIZES

ROUND BALLS

Specified for critical applications only. Manufactured to the nominal diameter dimension with no visual surface irregularities.

Order Size

1/8

 

thru

1

A

 

.125

 

thru

1.000

BARREL

The most common ball-type media. Slight, often microscopic surface imperfections may exist, which have no detrimental effects.

A

 

.250

.2812

.3125

.3437

.375

.500

Order Size

1/4

9/32

5/16

11/32

3/8

1/2

B

 

.235

.253

.275

.309

.344

.450

CONES

Very popular for vibratory finishing applications requiring aggressive action. Center flange and tapered crowns provide contact angles on curved surfaces. Small sizes are ideal for intricate or ornamental designs.

Order Size

3/16

5/16

1/2

25/32

B

 

.200

.315

.535

.781

A

 

.155

.265

.470

.630

 
 
 

BALL CONES

The burnishing capabilities of balls and cones in one scientifically proportioned shape. See dimensional specifications chart for configuration.

Order Size

1/8

5/32

3/16

1/4

5/16

A

 

.125

.215

.270

.320

.375

B

 

.170

.270

.300

.400

.465

OVAL BALLS

Used for vibratory finishing and barrel tumbling operations when a scratch and dimple-free finish is required. This shape introduces an oscillating motion to the finishing mass and provides more surface-to-surface contact than balls.

Order Size

1/8

5/32

3/16

5/16

3/8

A

 

.245

.320

.380

.535

.630

B

 

.125

.156

.187

.312

.375

DIAGONALS

Particularly suited to odd shapes where lodging might be a problem or for parts with hard to reach angles. Beveled edges of diagonally cut ends provide effective finishing action in corners. The cylindrical body offers wide area contact.

Order Size

1/8

5/32

3/16

7/32

1/4

5/16

3/8

B

 

.125

.156

.187

.218

.250

.312

.375

A

 

.125

.156

.187

.218

.250

.312

.375

 
 
 

Washington Mills | Steel Vibratory Media

Washington Mills steel vibratory media has a bulk density of approximately 300 lbs per cubic foot with the ability to burnish, peen, and clean parts. Steel media is an excellent choice for castings, stampings, and parts to be brightened. Steel provides "no cut" and will leave a "bright" finish.