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Manufacturing & Metalworking

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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Injection Mold Base A series 11 x 18 -1 7/8 A 1 7/8 B
$1969.20
Meter Flow BAILEY&FISCHER PORTER Magnetic Nitrogen(new)
$12.50
HONEYWELL V5055A 1020 INDUSTRIAL GAS VALVE NEW NIB
$315.00
HONEYWELL C437E1004 GAS AIR PRESSURE SWITCH NEW NIB
$199.99
DELRIN YELLOW/SOFT/ 3 1/2 od/3 1/2 L / 2 pieces NEW ###
$14.99
Wayne 3/4" extruder
$990.00
NEW CLEAR ACRYLIC ROUND RODS 1/2" dia. 6 FT PLASTIC 72"
$4.40
Brass Elbow Comp. Fitting; 1/4 tube x 1/4 NPT, 25 ea.
$9.99
HONEYWELL C645B1013 GAS AIR PRESSURE SWITCH NEW NIB
$119.99
COPPER KETTLE 130 Gallons COLLECTORS ITEM ANTIQUE
$4500.00
HONEYWELL R7849A1023 ULTRAVIOLET AMPLIFIER
$82.50
VICKERS HYDRAULIC CONTROL PANEL NEW # CPG-06-10-AA-12
$30.00
Tippmann Clicker- Air Powered Die Cut Press 7 ton
$1650.00
Schuld Mfg Complete 10 Silo Resin System Aluminum
$65000.00
HONEYWELL RM7890A1015 AUTOMATIC PRIMARY CONTROL NEW NIB
$390.00
DATA SCALE LIQUID PAIL FILLER
$12995.00
DVD: Making Parts, Patterns, Tools, & Molds
$8.95
Wastech Engineering Chemical Dispensing System 4 Tanks
$4450.55
6 Civacon Gravity Couplers 4" 871-A No Reserve
$61.01
21144 UHMW Pink 3 1/16" dia & Yellow 3" dia x 5 pcs
$9.99
SONIC BLOWER 100
$400.00
NEW CLEAR ACRYLIC ROUND RODS 1/8" dia. 6 FT PLASTIC 72"
$1.00
BOC Edwards PV40EKS Steel Solenoid Valve C41402000
$79.99
HEMCO Uniflow Portable Hood
$300.00
USED ? LIGHTIN MIXER R37077710 1750 HP 2.53 RELIANCE
$890.00
Brand New!! 8" Impulse Heat Sealer W/Warranty FREE KIT!
$18.99
HONEYWELL C437D1005 GAS AIR PRESSURE SWITCH NEW NIB
$245.00
RUBBER SHEET ROLL STRIP MAT GASKET STAMP PAD 6" X 48"
$4.99
DELRIN WHITE 4" OD X 5" L , 4" X 4 1/2" LONG NICE STUFF
$19.99
ANDERSON GREENWOOD SAFETY RELIEF VALVE 83CM688 REPAIRED
$30.00
NOVUS Plastic Acrylic Plexiglass Cleaner 8 Oz. Kit
$22.00
ZENON Mobile Reverse Osmosis System KZ106-C 3 Phases
$3500.00
5 Sheets 1/4" Clear Cell Cast Acrylic Plexiglass Sheet
$38.00
HEDLAND FLOW-ALERT FLOW SWITCH H701A-005-F1 (NIB) (NR)
$39.40
Weber LegiJet Inkjet Coding System
$800.00
Injection Mold Base A series 12 x 12 1 3/8 A 1 3/8 B
$1601.10
Brand New! 12" Impulse Heat Sealer W/Warranty FREE KIT!
$25.49
Homoginizer, Mixer, Agitator (Brand New!)
$1450.00
NR NEW CC&S Soft drink can filler drive belt 72 / 120L
$99.00
AIRAM CUT OFF SHEAR GUILLOTINE TYPE PNEUMATIC PRESS
$1475.00
FSI BOC Edwards Chemfill Chemical Delivery 1500 1533
$6232.55
NEW Veriflo Valves 930AOPLPNOSFSFF 45700373 (3X)
$79.99
Eirich Plow Blender, 140 Cubic Foot
$79797.00
NO RESERVE Accraply Pressure Sensitive Inline Labeler
$1250.00
NEW CLEAR ACRYLIC ROUND RODS 5/16" dia 6 FT PLASTIC 72"
$2.40
HONEYWELL S427B1009 PURGE TIMER S427B 1009 NEW NIB
$289.99
HONEYWELL R7847A1033 FLAME AMPLIFIER R7847 A 1033
$109.00
NEW! CLEAR ACRYLIC TUBING 5/8" OD x 1/2" ID 6 FT LONG
$4.60
Dwyer Variable area flowmeter Magnehelic manometer
$9.99
Carbon Fiber Dark Blue Texalium 50"x132" Cloth
$179.99
Yield Engineering RCM3 YES Controller w/Vacuum Dryer
$4450.55
Plexiglass Acrylic Tube Cylinder Rod Black 4"OD x 13.5"
$7.95
Nipples Close brass 1/4 NPT, bag of 25
$9.99
Forsthoff Quick LE Heat Welding Hot Air Gun New
$369.00
Injection Mold Base A series 13 x 18 1 7/8 A 1 7/8 B
$1931.40
NOWATA FILTRATION FILTER HOUSING
$29.99
Acrison Feeder 140S Model
$3800.00
Brand New! 4" Impulse Heat Sealer W/Warranty FREE KIT!
$4.99
CONSOLIDATED SAFETY RELIEF VALVE # 19110MC-1-DA-31-GS
$35.00
Intermetro Metro CBC PC Board Rack with 2 center panels
$39.99
Mueller 600 Gallon Refrigerated Pressure Rated Tank
$7500.00
Brass T 1/4 NPT,F-F-M, bag of 25
$15.00
(3X) Swagelok Valve 6LV-DAFR4-P SS-43VCR-K-SE2-5383 NEW
$89.99
NEW CLEAR ACRYLIC TUBING 1/2" OD x 3/8" ID 6 FT LONG
$3.90
Horizontal Stainless Steel Tank 8' x 24' 1' Dish
$14250.00
NEW CLEAR ACRYLIC ROUND RODS 3/16" dia 6 FT PLASTIC 72"
$1.30
NEW CLEAR ACRYLIC ROUND RODS 1/4" dia. 6 FT PLASTIC 72"
$1.90
DVD: Making Parts, Patterns, Tools, & Molds
$8.95
NEW! CLEAR ACRYLIC TUBING 1/4" OD x 1/8" ID 6 FT LONG
$1.90
USED ? LIGHTIN MIXER R370778102 1750 2.17 HP RELIANCE
$890.00
SMC ROTARY ACTUATOR # CRB80-270 NEW
$20.00
NORLAND 3 & 5 Gallon Water Bottling Line EXCELLENT !!
$30000.00
DELRIN BLUE HARD W/1"HOLE DEPT 2 7/8"OD X 1" 6 PIECES
$9.99
Brass Compression Fitting; 1/4 tube by 1/4 NPT, 25 ea.
$9.99
Bettcher Chemical Processor Process Server Cabinet
$1777.55
Jacketed Tank Pressure Vessel
$3600.00
Price Reduced!! Eirich High Intensive Mixer, Model R-18
$74470.00
Accusonics Inc.Catenoidal Ultrasonic Horn
$9.99
Cantrell SSCA-7 Poultry Chiller 40Ft Food Processing
$33500.00
Used 2410 Christie Plastic Pipe Fusion Machine Welder
$25000.00
2 pcs NIBCO 3'' SILENT CHECK VALVE # W910B NEW IN BOX
$30.00
NEW! CLEAR ACRYLIC TUBING 3/8" OD x 1/4" ID 6 FT LONG
$2.90
BRANDNEW NUPRO SWAGELOK MO# 6L-ELD16-11XX BULKGAS VALVE
$14.99
Emzo Stable VI Stand-Up Pouch Machine- Form Fill & Seal
$19000.00
High Quality Vacuum Pouches
$40.00
NEW CLEAR ACRYLIC TUBING 5/16" OD x 3/16" ID 6 FT LONG
$2.40
OMS LOW LEVEL Bottle Depalletizer
$19500.00
NO RESERVE Worthington 5 Hp Centrifugal Pump 3" x 2"
$99.00
Injection Mold Base A series 13 x 18 1 7/8 A 2 3/8 B
$2519.10
2007 New Trio Twin 54" Fine Material Washer Great Shape
$60000.00
HELIUM LEAK DETECTOR WITH VARIAN VACCUM PUMPS NICE !
$15999.99
Nordson ProBlue SP Glue Pump For Repair
$49.95
NELMOR GRANULATOR / GRINDER # G1012LS 7.5 H.P. USED
$500.00
Cincinnati CM-35 TWIN SCREW EXTRUDER
$12490.00
DELTAPLAST CO-EXTRUDER
$6900.00
EMI Stainless Steel water manifolds
$69.00
Loveshaw Padlocker Case Erector RSC Case Box Erector
$13500.00
Thyssen 90 mm twin screw extruder
$10900.00
HONEYWELL R7849B1021 ULTRAVIOLET AMPLIFIER NEW NIB
$85.00
Intermetro Metro CBCP2C center panel for PC Board Rack
$24.99