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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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0.030 Orange Cell Cast Acrylic Plexiglass 12"x27" Sheet
$9.99
PLEXIGLASS ACRYLIC SHEET SIZE 32 BY 42.5 INCHES NEW
$9.99
1/16" Clear Cell Cast Acrylic Plexiglass 12"x27" Sheet
$9.99
Reed Injection Mold Green Handel I/0 Card, SB209031BR
$100.00
(NEW) Pallet Stretch Wrapper ORION (Low Profile Model)
$9995.00
Heat Exchanger pharmaceutical Kinetics 31gal
$2900.00
PLEXIGLASS ACRYLIC SHEET SIZE 32 BY 42.5 INCHES NEW
$9.99
Chemical injector Oscillamatic , Williams Instrument
$325.00
3/4 THICK CAST ACRYLIC SHEET 2' x 4' 1pcs
$85.00
Thick Wall Acrylic Tube 6" O.D. 1/4" Wall 2 Pcs. 10" L
$19.99
Biodiesel 1" ID clear PVC static mixer, home biodiesel
$50.00
NO RESERVE (2) Tri Clover 1-1/2" Stainless 90 Degree
$10.50
Reed Injection Mold Green Handel I/0 Card, SB209031BR
$100.00
NEW HONEYWELL GAS and AIR PRESSURE SWITCH C437D 1005
$10.00
Reed Injection Mold Black Handel I/0 Card, SB209030CR
$100.00
Branson welding actuator 921AOS Plastics
$390.00
Linx 6000 Coder Ink Jet Printer Bottling Line Lot Code
$1699.00
1/16" Clear Cell Cast Acrylic Plexiglass 12"x27" Sheet
$9.99
Tablet printer Ackley
$4750.00
Varian leak detector 990-CLD V70D macro torr leybold
$3250.00
20 Pc Neoprene Sheets Sponge Sound Proofing Insulation
$20.00
3/16" Clear Cell Cast Acrylic Plexiglass 12"x27" Sheet
$9.99
NEW Nordson Kits Part # 276643A
$0.99
Graco Bulldog pneumatic pump 10-1 206 207 208 unused
$1705.00
Lightnin Mixer and mixing prop 115VAC
$399.00
1/8" Clear Cell Cast Acrylic Plexiglass 12"x27" Sheet
$9.99
Crucibles: Assaying, Smelting, Jewelry, Silver & Gold
$22.50
1/32" Clear Cell Cast Acrylic Plexiglass 12"x27" Sheet
$9.99
Ross 1" Adjustable Pneumatic Flow Control Valve/Valves
$4.99
Mini Utility Knife/ Cuts all types of materials
$6.79
1/16" Clear Cell Cast Acrylic Plexiglass 12"x27" Sheet
$9.99
Lightnin Mixer and mixing prop 115VAC
$299.00
3/8 THICK CAST ACRYLIC SHEET 4' x 4' 1pcs
$135.00
LUNKENHEIMER 1/2 & 1/4 BRASS VALVES 125 S HIT AND MISS
$9.99
36" WIDE X 1/6 X 20 FT. ROLL RUBBER MATERIAL NEW GOOD
$49.00
Accusonics Inc.Catenoidal Ultrasonic Horn
$9.99
AMTECH 40 KHZ ULTRASONIC TUBE SEALER BRANSON CONTROLLER
$1199.00
Mixer Homogenizer Omni Omnimax digital 5000 rpm
$750.00
Temperature Controllers Sterlco Plastics
$350.00
450 Gallon Jacketed Processor Kettle Chester Jensen
$9500.00
Sanitary valves , transducer , Cherry Burrell , Tri-Clo
$740.00
Parts washer continuous stainless heated
$490.00
Swagelok Cajon Stainless Steel Threaded Tee Fittings 1"
$24.99
Spraymation Hot Melt Applicator
$700.00
1/32" Clear Cell Cast Acrylic Plexiglass 12"x27" Sheet
$9.99
12' L x 24" W Stainless Steel Conveyor Section
$4750.00
NEW Nordson Driver Module with COMP, 30 V, # 296096A
$0.99
Reed Injection Mold Purple Handel I/0 Card, SB209032A-R
$100.00
100 Feet 24" BF Case Conveyor 1.9" Roller Western Atlas
$4000.00
Plastics dryer vacuum conveyors dhd-4 unadyn filters
$4750.00
Homogenizer rannie mini-lab 8.30h 14,500 psi 1997
$7700.00
Pump spray station 2hp , A3 sanitary hazardous locatio
$2925.00
Temperature controller Sterlco M8424 water
$320.00
Neptune Chemical Co. Sample Cooler Heat Exchange
$50.00
1/16" Clear Cell Cast Acrylic Plexiglass 12"x27" Sheet
$9.99
Reed Injection Mold Purple Handel I/0 Card, SB209032A-R
$100.00
HARRIS 9296 MULTI-STAGE REGULATOR
$40.00
PLASTIC & METAL MOLD TEXTURING SAMPLE BOOK
$2.00
Reed Injection Mold Yellow Handel I/0 Card, SB209033-C
$100.00
Dustkop dust collector and cyclone complete system
$200.00
0.080 Red Cell Cast Acrylic Plexiglass 12"x27" Sheets
$9.99
Incoe Corp. Heated Bushing w/Thermocouple XRH-8270A
$99.00
(NEW) Pallet Stretch Wrapper ORION (Automatic)
$13595.00
Clay Mixer extruder pug mill Bulldog Factory Services
$8500.00
Pump station Millipore , 7.5hp , 316ss filtration
$3500.00
Parker Moduflow Recovery unit dual filtration 115VAC
$299.00
1/4" Clear Cell Cast Acrylic Plexiglass 24"x26" Sheets
$9.99
1/16" Clear Cell Cast Acrylic Plexiglass 12"x27" Sheet
$9.99
Six Tanaka Engineering Works Regulators Torr-31
$49.99
1/16" Clear Cell Cast Acrylic Plexiglass 12"x27" Sheet
$9.99
VERY NICE CONAIR COMPU-DRY DRYER W/ NOVATECH NPH-HOPPER
$2990.00
Reed Injection Mold Yellow Handel I/0 Card, SB209033-C
$100.00
PAPER BAG MACHINE W/3 COLOR PRINTER & CLARK FORKLIFT
$19600.00
1/16" Clear Cell Cast Acrylic Plexiglass 12"x27" Sheet
$9.99
GPS DIGITAL CAMERA PSP DISPLAY SCREEN SCRATCH REMOVER !
$7.95
Alignment Pins with Spherical Head
$0.99
1/16" Clear Cell Cast Acrylic Plexiglass 12"x27" Sheet
$9.99
1/10" Clear Cell Cast Acrylic Plexiglass 12"x27" Sheet
$9.99
Cole Palmer mixer head unused 50000-25
$180.00
1/16" Clear Cell Cast Acrylic Plexiglass 12"x27" Sheet
$9.99
2000gal Stainless Mixing Tank Cone Bottom 2.5in outlet
$8000.00
Dyno-Mill KDL , Wab Bachofen , Glen Mills
$2975.00
1/32" Clear Cell Cast Acrylic Plexiglass 12"x27" Sheet
$9.99
(NEW) Pallet Stretch Wrapper ORION (Automatic)
$25400.00
1/16" Clear Cell Cast Acrylic Plexiglass 12"x27" Sheet
$9.99
WATER FILTER Used Carbon Vessel GAC Whole House
$75.00
Conair plastic filter units
$450.00
Lot 9 Quick Hose Water Connect Aluminum Fittings
$9.99
Clear Acrylic tubes 6", 7", 8" OD (72" long ) 3pc total
$190.00
1/16" Clear Cell Cast Acrylic Plexiglass 12"x27" Sheet
$9.99
0.080 White Cell Cast Acrylic Plexiglass 12"x27" Sheets
$9.99
Hot oil temperature controller advantage regal rdo-1230
$2750.00
2007 GAULIN APV Homogenizer M# APV24-8.7B NEW CONDITION
$55000.00
Impulse Sealer - TISC-300 - with Cutter
$52.00
Toshiba 120Ton Injection Molding Press
$5000.00
Branson 20 kHz boosters for all 400 and 800 series weld
$9.99
Domino Printer A-series,New Mother Board, 3 Board Stack
$1000.00