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Manufacturing & Metal Working

Process Equipment

Process Equipment Article

A grinding machine is a machine tool used for producing very fine finishes or making very light cuts, using an abrasive wheel as the cutting device. This wheel can be made up of various sizes and types of stones, diamonds or of inorganic materials. For machines used to reduce particle size in materials processing see grinding.

Construction

The grinding machine consists of a power driven grinding wheel spinning at the required speed (which is determined by the wheel.s diameter and manufacturer.s rating, usually by a formula) and a bed with a fixture to guide and hold the work-piece. The grinding head can be controlled to travel across a fixed work piece or the workpiece can be moved whilst the grind head stays in a fixed position. Very fine control of the grinding head or tables position is possible using a vernier calibrated hand wheel, or using the features of NC or CNC controls.

Grinding machines remove material from the workpiece by abrasion, which can generate substantial amounts of heat; they therefore incorporate a coolant to cool the workpiece so that it does not overheat and go outside its tolerance. The coolant also benefits the machinist as the heat generated may cause burns in some cases. In very high-precision grinding machines (most cylindrical and surface grinders) the final grinding stages are usually set up so that they remove about 2/10000mm (less than 1/100000 in) per pass - this generates so little heat that even with no coolant, the temperature rise is negligible.

Process Equipment Items

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LEE 150 Gallon Stainless Steel Jacketed Kettle
$2650.00
(24) 1/4" Clear Acrylic sheets 12" X 12" Lucite, Plexi
$8.05
19445 PVC type 1schedule 80 pipe 8 5/8" OD x 24" long
$29.99
SWAGELOK 1/2" FERRULES SS NEW (100EA) SS-810-SET NEW
$75.00
(3015)POLYCARBONATE ROD1 1/4" DIA 12" LONG
$12.50
(3062)SEABOARD BLACK 3/4" THICK 24"X 16 1/2" FOR SALE
$18.50
Weldotron Shrink Tunnel
$1800.00
(2094)SEABOARD 3/4" THICK WHITE 16 3/8" X 27" IN THIS
$27.50
Unused Eirich Paddle-Ribbon Jacketed Dimple Blender
$75277.00
21120 Polycarbonate mechanical 1 1/2" dia x 23 7/8" L
$19.99
(1966)PVC ROD 3 1/2" DIA GREEN ROD X 30" LONG IN THIS
$60.00
Conair Franklin Vacuum Timer Hopper Magnetic Feeder
$699.99
(3020)POLYCARBONATE ROD 5/16" DIA 12" LONG
$1.80
(731)SEABOARD 1/4" THICK 23 3/4" X 26 3/4" IN THIS
$12.50
190 - .030" X 8 1/2" X 11" .030 White Styrene sheets
$5.50
BAUMAN SAMSON SINGLE ACTING I/P POSITIONER VALVE 4763
$199.00
(1659)POLYCARBONATE 3/16" THICK(.177) 48" X 96" CLEAR
$119.00
King Automatic Tablet / Capsule Counter On cart
$4250.00
(1384)ACRYLIC CLEAR CUBE 1 1/2" TUMBLE POLISHED
$3.00
HEATED HYD. LAB PRESS
$500.00
25 Gallon Steel Tank Pressurized Freon/Refrigeration
$99.00
(426) SEABOARD 1" THICK WHITE 23 3/4" X 26 3/8"
$35.00
CREPACO Stainles Steel Homogenizer Mod. 3DD25. 500 gph
$15000.00
Brabender Feeder, Model FW40PLUS
$3777.00
(311)NALGENE 32 OZ. AMBER BOTTLES 6 PCS IN THIS SET
$10.00
VCR GAUGES (5EA) 30-0-30PSIG READINGS NEW USG SWAGELOK
$20.00
SWAGELOK METERING VALVE 1/2" FVCR (1EA) SS-4BMRG-V16
$20.00
(1941)LEXAN 3/8" THICK PLATE 14" X 32" IN THIS SALE
$25.00
SWAGELOK 1/4" VCR GASKETS NEW (250EA) NI-4-VCR-2-VS NEW
$125.00
Nuclear Quality 24 X 24 X 12 Hepa Filter New! 99.9%++
$99.99
(1068)ACRYLIC HINGES 6 PAIR IN THIS SALE CLEAR
$7.00
(3017)POLYCARBONATE ROD 3/4" DIA 12" LONG
$6.50
PARKER VERIFLO MANUAL VALVES (6EA) NEW NEW SWAGELOK
$145.00
Tylan FC 280 Mass Flow Controller 300 SCCM & Manifold
$19.95
SWAGELOK (1EA) COMPACT HF GAS REGULATOR SS-HFS4B-FR8
$30.00
(920)KYDEX T BLACK 1/8" THICK 24" X 24" IN THIS
$12.50
NEOPRENE MATERIAL,WET SUIT MATERIAL,CAMPING MAT
$9.99
Accusonics Inc.Catenoidal Ultrasonic Horn
$9.99
M.D.T. ULTRAMIGHT ULTRASONIC POLISHING SYSTEM #UC550
$56.00
21078 Polypro Nat 3/4" (.740") x 5 1/4" x 29" x 2pcs
$9.99
(1062)ACRYLIC TUBING 2 1/2" DIA. X 1/8" WALL X 23 1/2"
$4.50
THERMOCOUPLE "K" Plug (Small) *UNUSED* Qty:4
$9.85
SWAGELOK PLUG VALVES SS-6P6T / SS-6P4T NEW NEW 3000PSIG
$20.00
Lot of (40) Grade 8 Flange Bolts, 5/8-11 x 1-3/4" Nice
$12.49
Heat Exchange "SUPERCHANGER " With 60 New plates
$1500.00
SWAGELOK MANUAL BN SERIES VCR VALVE (5EA) SS-BNV51-AB
$135.83
(1271)ACRYLIC OP-3 UV FILTER ACRYLIC 18 1/2" X 48"
$15.00
(1903)PHENOLIC 3/16" THICK BLACK XX PAPER 2 PCS 12"X48"
$10.00
(936)DELRIN ROD 3" DIA X 12" LONG IN THIS SALE
$24.50
ONE(1) 1/4" PLEXIGLASS ACRYLIC SHEET CLEAR LEXAN
$7.99
DOMINO S300+ SCRIBING LASER SYSTEM CODING MARKING LASER
$4000.00
VIDEOJET EXCEL 2000 OPAQUE INKJET PRINTER CODER
$2750.00
(3059)ACRYLIC WHITE 1/8"1PC THICK11 1/2"X48" FOR SALE
$1.00
Parker UHP NI-200 Stainless Manifold and Valve assy.
$9.99
(3045)LEXAN 3/8" THICK CLEAR PLATE 8 1/2" X 23 3/4" IN
$11.00
New HUGE Lot Barnes & Jones Steam Trap Traps # 2043 NIB
$24.99
Vulcan 150 Gallon Stainless Steel Kettle
$1000.00
(3040)POLYCARBONATE MIRROR 1/4" THICK 16 1/2" X 19"
$10.00
SWAGELOK 1/2" TUBE ADAPTORS (11EA) SS-PB8-TA8 NEW
$20.00
SWAGELOK (10EA) 1/4" SWAG x NPT MALE ELBOW SS-400-2-4
$20.00
(845)ACRYLIC TUBING EXTRUDED 6" OD X 1/8" WALL 24"
$25.00
SWAGELOK 1/4" MVCR UNION ELBOWS (13EA) SS-4-VCR-9 NEW
$20.00
Clear Polycarbonate Sheet 11" by 11" by 3/8" Thick
$4.25
(1170)ACRYLIC POLISH KIT BY MICRO-MESH FOR UP TO 60 SQ'
$47.50
PARKER VERIFLO MANUAL VALVES (5EA) NEW! NEW! SWAGELOK
$125.00
SWAGELOK (9EA) 1/4" SS SWAGE MIX LOT ALL NEW
$18.00
(3019)POLYCARBONATE ROD 3/8" DIA 12" LONG
$2.50
(2085)DELRIN BLACK 4 PCS 3/8" THICK X 5/8" WIDE X 49"
$1.00
45 - 1/8" X 8.5" X 11" 3mm Black Sintra sheets komatex
$0.99
SWAGELOK 1/4" SS MICROFIT 90's NEW (65EA) 6LV-4MW-9
$65.00
UHMW repro black sheet 2 .75" x 7.5" x10.5"( 7.4#)
$23.99
(3037)POLYCARBONATE CLEAR 1/2" THICK 4 PCS 8" X 28"
$68.00
NEW TUFLINE STAINLESS STEEL BUTTERFLY VALVE 891 10"
$749.99
SWAGELOK HUGE LOT OF BRASS FITTINGS HUGE NEW ( 243 EA)
$50.00
dixie can seamer / sealer
$2000.00
Accusonics Inc. Exponential Ultrasonic Horn
$9.99
(2018)GPO3 FIBERGLASS PLATE 1 1/2" THICK 10 1/2" X 12"
$50.00
(3016)POLYCARBONATE ROD 1" DIA 12" LONG
$8.50
Biner-ellison 10 station Bottler capper and 40 gal tank
$12900.00
(1416)NOVUS PLASTIC POLISH KIT IN 2 OZ SIZE BOTTLES
$6.50
(3068)ACRYLIC CLEAR 1PC 3/8" THK 8" X 41" IN THIS SALE
$9.50
SWAGELOK (5EA) 1/2SWAG x 3/8MNPT MALE CONN. SS-810-1-6
$20.00
SANCI PIEXO VIBRATOR FEEDER W/ CONTROL UNIT
$149.99
Cozzoli BT400 - 55 Pharmaceutical Trayer / Packager
$2395.00
Honeywell PROGENY RSX Video Recorder Version C2
$0.99
407 PIECES O-RING AUTO SERVICE KIT BUNA-N APPROVED NR
$5.99
(901)ACRYLIC TUBING 1 1/2" OD X 1/4" WALL CLEAR 24"
$5.50
(2060)NYLON CAST BLUE PLATE 1 3/4" THICK 2 3/4" X 7"
$3.50
VCR GAUGES (5EA) 30-0-60PSIG READINGS NEW USG SWAGELOK
$20.00
Two Arburg injection molding machines for one price
$2450.00
VCR GAUGES (3EA) 0-1000 PSIG READINGS NEW USG SWAGELOK
$16.00
(3058)NYLON BLUE CAST 1 3/4" THICK PLATE 5 3/4" X 24"
$135.00
CW Brabender Plasti-Corder DR-2052 PL-2000 5HP Extruder
$3999.00