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Grinding Machines

Metal grinders for every need – CNC & conventional 218 Items
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Dimensions (l x w x h) approx. 3,500 x 2,000 x 2,000 mm
Year of manufacture 1992
Weight approx. 1,500 kg
Item available from immediately
Delivery terms EXW GOSSELIES, ex foundation, unpackaged
GOSSELIES Belgium, 6041 GOSSELIES
27/05/2021 10:33
0 Bids
4,000 €
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GRINDING MASTER MB-900 Abrasive Band Grinding Machine
Ends tomorrow!
Dimensions (l x w x h) approx. 2,700 x 2,200 x 2,200 mm
Weight approx. 500 kg
Item available from immediately
Delivery terms FCA Požega, loaded on truck
Požega Serbia, 31210 Požega
12/05/2021 11:12
0 Bids
1,000 €
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MOL Chuck / Footer
Ends tomorrow!
MOL Chuck / Footer Tool Grinding Machines
Tip
Tip
Dimensions (l x w x h) approx. 260 x 260 x 200 mm
Weight approx. 32 kg
Item available from immediately
Delivery terms FCA Požega, loaded on truck
Požega Serbia, 31210 Požega
12/05/2021 11:29
0 Bids
350 €
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Dimensions (l x w x h) approx. 870 x 1,000 x 1,160 mm
Year of manufacture 1998
Weight approx. 200 kg
Item available from immediately
Delivery terms FCA GOSSELIES, loaded on truck
GOSSELIES Belgium, 6041 GOSSELIES
27/05/2021 10:28
0 Bids
140 €
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Dimensions (l x w x h) approx. 650 x 650 x 1,170 mm
Weight approx. 150 kg
Item available from immediately
Delivery terms FCA GOSSELIES, loaded on truck
GOSSELIES Belgium, 6041 GOSSELIES
27/05/2021 10:40
0 Bids
90 €
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MICHAEL DECKEL S 22 E TURBO CNC Tool Grinding Machine Tool Grinding Machines
Top lot
Top lot
Dimensions (l x w x h) approx. 3,100 x 2,800 x 2,150 mm
Year of manufacture 2008
Weight approx. 4,000 kg
Item available from immediately
Delivery terms FCA Schwenningen, loaded on truck
Schwenningen Germany, 72477 Schwenningen
02/06/2021 10:07
0 Bids
25,500 €
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MICHAEL DECKEL S 22 E TURBO CNC Tool Grinding Machine
MICHAEL DECKEL S 22 E TURBO CNC Tool Grinding Machine Tool Grinding Machines
Top lot
Top lot
Dimensions (l x w x h) approx. 3,100 x 2,800 x 2,150 mm
Year of manufacture 2007
Weight approx. 4,000 kg
Item available from immediately
Delivery terms FCA Schwenningen, loaded on truck
Schwenningen Germany, 72477 Schwenningen
02/06/2021 10:39
0 Bids
24,000 €
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MICHAEL DECKEL S 22 E NUM CNC Tool Grinding Machine Tool Grinding Machines
Top lot
Top lot
Dimensions (l x w x h) approx. 3,400 x 3,100 x 2,250 mm
Year of manufacture 2007
Weight approx. 4,000 kg
Item available from immediately
Delivery terms FCA Schwenningen, loaded on truck
Schwenningen Germany, 72477 Schwenningen
02/06/2021 10:15
0 Bids
22,000 €
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MICHAEL DECKEL S 22 E TURBO CNC Tool Grinding Machine
MICHAEL DECKEL S 22 E TURBO CNC Tool Grinding Machine Tool Grinding Machines
Top lot
Top lot
Dimensions (l x w x h) approx. 3,100 x 2,800 x 2,150 mm
Year of manufacture 2004
Weight approx. 4,000 kg
Item available from immediately
Delivery terms FCA Schwenningen, loaded on truck
Schwenningen Germany, 72477 Schwenningen
02/06/2021 10:23
0 Bids
20,000 €
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MICHAEL DECKEL S 20 TURBO CNC Tool Grinding Machine Tool Grinding Machines
Top lot
Top lot
Dimensions (l x w x h) approx. 2,600 x 2,100 x 2,150 mm
Year of manufacture 2001
Weight approx. 2,500 kg
Item available from immediately
Delivery terms FCA Schwenningen, loaded on truck
Schwenningen Germany, 72477 Schwenningen
02/06/2021 10:35
0 Bids
15,000 €
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MICHAEL DECKEL S 20 CNC P-5 CNC Tool Grinding Machine Tool Grinding Machines
Top lot
Top lot
Dimensions (l x w x h) approx. 3,300 x 2,100 x 2,150 mm
Year of manufacture 1997
Weight approx. 2,500 kg
Item available from immediately
Delivery terms FCA Schwenningen, loaded on truck
Schwenningen Germany, 72477 Schwenningen
02/06/2021 10:11
0 Bids
8,500 €
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MICHAEL DECKEL S 20 CNC-5 CNC Tool Grinding Machine Tool Grinding Machines
Top lot
Top lot
Dimensions (l x w x h) approx. 2,600 x 2,000 x 2,770 mm
Year of manufacture 1997
Weight approx. 2,500 kg
Item available from immediately
Delivery terms FCA Schwenningen, loaded on truck
Schwenningen Germany, 72477 Schwenningen
02/06/2021 10:27
0 Bids
8,500 €
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GEIBEL & HOTZ FS 1050 SD CNC Surface Grinding Machine Surface Grinders
Top lot
Top lot
Hot lot
Dimensions (l x w x h) approx. 5,000 x 3,000 x 2,700 mm
Year of manufacture 2009
Weight approx. 8,500 kg
Item available from immediately
Delivery terms FCA Velbert, loaded on truck
Velbert Germany, 42551 Velbert
17/06/2021 10:02
16 Bids
13,000 €
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BLOHM Planomat CNC surface grinding machine Surface Grinders
Top lot
Top lot
Dimensions (l x w x h) approx. 2,500 x 3,100 x 2,900 mm
Year of manufacture 1999
Weight approx. 4,900 kg
Item available from immediately
Delivery terms FCA Schwäbisch Gmünd, loaded on truck
Schwäbisch Gmünd Germany, 73529 Schwäbisch Gmünd
26/05/2021 12:04
0 Bids
7,500 €
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KELLENBERGER 600 U External Cylindrical Grinding Machine Cylindrical Grinders
Top lot
Top lot
Hot lot
Dimensions (l x w x h) approx. 3,500 x 2,000 x 2,100 mm
Weight approx. 3,000 kg
Item available from immediately
Delivery terms FCA Aachen, loaded on truck
Aachen Germany, 52068 Aachen
15/06/2021 14:29
22 Bids
13,000 €
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OKAMOTO 63DXAS Surface Grinding Machine Surface Grinders
Top lot
Top lot
Dimensions (l x w x h) approx. 5,000 x 3,000 x 2,500 mm
Year of manufacture 2002
Weight approx. 6,000 kg
Item available from immediately
Delivery terms FCA Weilheim Teck, loaded on truck
Weilheim Teck Germany, 73235 Weilheim Teck
01/06/2021 13:11
1 Bid
6,000 €
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Dimensions (l x w x h) approx. 2,200 x 1,800 x 2,300 mm
Year of manufacture 1974
Weight approx. 2,500 kg
Item available from immediately
Delivery terms FCA Ennepetal, loaded on truck
Ennepetal Germany, 58256 Ennepetal
21/05/2021 10:08
0 Bids
3,500 €
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HAUSER 5 SM-DR Precision Coordinate Grinding Machine
play video
HAUSER 5 SM-DR Precision Coordinate Grinding Machine Jig Grinding Machines
Top lot
Top lot
Dimensions (l x w x h) approx. 2,200 x 1,800 x 2,730 mm
Weight approx. 3,900 kg
Item available from immediately
Delivery terms FCA Gräfenthal, loaded on truck
Gräfenthal Germany, 98743 Gräfenthal
08/07/2021 10:29
0 Bids
3,000 €
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Dimensions (l x w x h) approx. 3,600 x 3,000 x 2,000 mm
Weight approx. 5,000 kg
Item available from immediately
Delivery terms FCA Weilheim Teck, loaded on truck
Weilheim Teck Germany, 73235 Weilheim Teck
01/06/2021 13:08
1 Bid
2,000 €
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JUNG JA 500-E Surface Grinding Machine Surface Grinders
Top lot
Top lot
Dimensions (l x w x h) approx. 3,000 x 2,000 x 2,400 mm
Year of manufacture 1992
Weight approx. 1,000 kg
Item available from immediately
Delivery terms FCA Gräfenthal, loaded on truck
Gräfenthal Germany, 98743 Gräfenthal
08/07/2021 10:53
5 Bids
1,900 €
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TACCHELLA MACCHINE 1018U Universal Grinding Machine
Ends tomorrow!
Dimensions (l x w x h) approx. 1,800 x 2,900 x 1,800 mm
Year of manufacture 1976
Weight approx. 4,500 kg
Item available from immediately
Delivery terms FCA, loaded on truck
Security deposit Credit card required
region Torino Italy, region Torino
12/05/2021 10:37
2 Bids
1,600 €
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STUDER S40-12 Cylindrical Grinding Machine Cylindrical Grinders
Top lot
Top lot
Hot lot
Dimensions (l x w x h) approx. 4,500 x 2,900 x 1,900 mm
Weight approx. 5,000 kg
Item available from immediately
Delivery terms FCA Weilheim Teck, loaded on truck
Weilheim Teck Germany, 73235 Weilheim Teck
01/06/2021 13:05
11 Bids
3,000 €
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Dimensions (l x w x h) approx. 2,760 x 3,200 x 2,500 mm
Year of manufacture 1999
Weight approx. 7,000 kg
Item available from immediately
Delivery terms FCA Noain, loaded on truck
Security deposit Credit card required
Noain Spain, 31110 Noain
10/06/2021 11:04
0 Bids
900 €
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OLIVETTI R4 1300 Grinding Machine Other Grinding Machines
Dimensions (l x w x h) approx. 3,800 x 1,800 x 1,600 mm
Weight approx. 4,000 kg
Item available from Immediately
Delivery terms FCA, loaded on truck
Security deposit Credit card required
region Torino Italy, region Torino
11/06/2021 10:15
0 Bids
710 €
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OKAMOTO External Cylindrical Grinding Machine Cylindrical Grinders
Top lot
Top lot
Dimensions (l x w x h) approx. 2,150 x 1,160 x 1,580 mm
Weight approx. 2,000 kg
Item available from immediately
Delivery terms FCA Wassertrüdingen, loaded on truck
Wassertrüdingen Germany, 91717 Wassertrüdingen
09/06/2021 14:54
9 Bids
1,600 €
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Double-Wheeled Bench Grinder
Double-Wheeled Bench Grinder Bench Grinders
Dimensions (l x w x h) approx. 400 x 400 x 1,200 mm
Weight approx. 70 kg
Item available from immediately
Delivery terms FCA Neunkirchen, loaded on truck
Neunkirchen Germany, 66538 Neunkirchen
25/05/2021 10:47
0 Bids
50 €
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NOMOCO M100 Centreless Cylindrical Grinding Machine Cylindrical Grinders
Top lot
Top lot
Dimensions (l x w x h) approx. 2,200 x 2,200 x 1,900 mm
Weight approx. 3,000 kg
Item available from immediately
Delivery terms FCA Weilheim Teck, loaded on truck
Weilheim Teck Germany, 73235 Weilheim Teck
01/06/2021 13:17
2 Bids
550 €
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DISKUS DD400SO Grinding Machine Grinding Machines
Top lot
Top lot
Dimensions (l x w x h) approx. 2,700 x 2,500 x 1,800 mm
Year of manufacture 1965
Weight approx. 3,500 kg
Item available from immediately
Delivery terms FCA Weilheim Teck, loaded on truck
Weilheim Teck Germany, 73235 Weilheim Teck
01/06/2021 13:14
2 Bids
550 €
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KUHLMANN K 360 Universal Tool Grinding Machine Tool Grinding Machines
Top lot
Top lot
Dimensions (l x w x h) approx. 1,350 x 1,000 x 1,350 mm
Weight approx. 200 kg
Item available from immediately
Delivery terms FCA Aachen, loaded on truck
Aachen Germany, 52068 Aachen
15/06/2021 14:11
1 Bid
300 €
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KAPP GIS 42 Internal and Face Grinding Machine Internal and Face Grinding Machines
Dimensions (l x w x h) approx. 4,500 x 3,000 x 3,000 mm
Year of manufacture 2007
Weight approx. 8,000 kg
Item available from immediately
Delivery terms FCA Tamm, free on truck
Tamm Germany, 71732 Tamm
19/05/2021 10:02
1 Bid
13,000 €
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Weight approx. 6,500 kg
Item available from immediately
Delivery terms FCA Monte San Pietro (BO), loaded on truck
Monte San Pietro (BO) Italy, 40050 Monte San Pietro (BO)
19/05/2021 10:22
0 Bids
7,000 €
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KARSTENS K 51 Cylindrical Grinder
Ends tomorrow!
play video
KARSTENS K 51 Cylindrical Grinder Cylindrical Grinders
Tip
Tip
Dimensions (l x w x h) approx. 5,000 x 2,200 x 2,500 mm
Year of manufacture 1992
Weight approx. 8,200 kg
Item available from immediately
Delivery terms FCA Langenfeld, loaded on truck
Langenfeld Germany, 40764 Langenfeld
12/05/2021 12:12
0 Bids
8,000 €
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Dimensions (l x w x h) approx. 1,300 x 920 x 1,540 mm
Year of manufacture 1980
Weight approx. 500 kg
Item available from immediately
Delivery terms FCA Schwenningen, loaded on truck
Schwenningen Germany, 72477 Schwenningen
02/06/2021 10:00
4 Bids
7,750 €
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Dimensions (l x w x h) approx. 3,300 x 2,200 x 2,150 mm
Year of manufacture 1993
Weight approx. 2,500 kg
Item available from immediately
Delivery terms FCA Schwenningen, loaded on truck
Schwenningen Germany, 72477 Schwenningen
02/06/2021 10:19
0 Bids
6,000 €
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VOUMARD 203 Internal Grinding Machine Internal and Face Grinding Machines
Tip
Tip
Dimensions (l x w x h) approx. 2,600 x 1,700 x 2,000 mm
Year of manufacture 1985
Weight approx. 3,000 kg
Item available from immediately
Delivery terms FCA Ennepetal, loaded on truck
Ennepetal Germany, 58256 Ennepetal
21/05/2021 10:11
0 Bids
5,000 €
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Dimensions (l x w x h) approx. 5,400 x 2,600 x 1,900 mm
Weight approx. 9,500 kg
Item available from immediately
Delivery terms FCA Alto Reno Terme, loaded on truck
Alto Reno Terme Italy, 40046 Alto Reno Terme
19/05/2021 11:36
0 Bids
5,000 €
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Dimensions (l x w x h) approx. 2,800 x 2,750 x 2,150 mm
Weight approx. 7,000 kg
Item available from immediately
Delivery terms FCA Schwenningen, loaded on truck
Schwenningen Germany, 72477 Schwenningen
02/06/2021 10:43
5 Bids
6,000 €
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Dimensions (l x w x h) approx. 8,500 x 2,900 x 1,800 mm
Weight approx. 30,000 kg
Item available from immediately
Delivery terms FCA Nagykanizsa, loaded on truck
Nagykanizsa Hungary, 8800 Nagykanizsa
08/06/2021 13:44
0 Bids
3,000 €
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Dimensions (l x w x h) approx. 3,000 x 2,000 x 1,500 mm
Year of manufacture 1978
Weight approx. 2,000 kg
Item available from immediately
Delivery terms FCA Ennepetal, loaded on truck
Ennepetal Germany, 58256 Ennepetal
21/05/2021 10:29
0 Bids
3,000 €
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Dimensions (l x w x h) approx. 1,500 x 1,000 x 1,600 mm
Weight approx. 1,600 kg
Item available from Immediately
Delivery terms FCA, loaded on truck
Security deposit Credit card required
region Torino Italy, region Torino
11/06/2021 10:28
0 Bids
2,135 €
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ELB SWH 5 VA II Surface Grinder
Ends tomorrow!
ELB SWH 5 VA II Surface Grinder Surface Grinders
Tip
Tip
Dimensions (l x w x h) approx. 1,800 x 1,600 x 2,300 mm
Weight approx. 2,200 kg
Item available from immediately
Delivery terms FCA Ahaus, loaded on truck
Ahaus Germany, 48683 Ahaus
12/05/2021 13:09
0 Bids
3,000 €
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Dimensions (l x w x h) approx. 2,500 x 1,500 x 1,600 mm
Year of manufacture 1970
Weight approx. 2,500 kg
Item available from immediately
Delivery terms FCA Ennepetal, loaded on truck
Ennepetal Germany, 58256 Ennepetal
21/05/2021 10:13
0 Bids
2,500 €
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Dimensions (l x w x h) approx. 1,500 x 1,200 x 1,800 mm
Weight approx. 800 kg
Item available from immediately
Delivery terms FCA Zona Industriale di Calcinato, loaded on truck
Security deposit Credit card required
Zona Industriale di Calcinato Italy, 25011 Zona Industriale di Calcinato
14/05/2021 09:50
0 Bids
2,370 €
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RIBON RUR 1500 External Cylindrical Grinder
Ends tomorrow!
Dimensions (l x w x h) approx. 3,200 x 1,600 x 1,700 mm
Weight approx. 5,500 kg
Item available from immediately
Delivery terms FCA Malsch, loaded on truck
Malsch Germany, 76316 Malsch
12/05/2021 10:19
0 Bids
2,000 €
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HAHN UND KOLB ORION Surface Grinder
play video
HAHN UND KOLB ORION Surface Grinder Surface Grinders
Tip
Tip
Dimensions (l x w x h) approx. 2,000 x 2,000 x 2,100 mm
Year of manufacture 1983
Weight approx. 2,000 kg
Item available from immeidately
Delivery terms FCA Oberhausen, loaded on truck
Oberhausen Germany, 46149 Oberhausen
19/05/2021 10:56
0 Bids
2,000 €
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Dimensions (l x w x h) approx. 10,000 x 2,300 x 3,000 mm
Year of manufacture 2004
Weight approx. 6,000 kg
Item available from immediately
Delivery terms FCA Manresa, loaded on truck
Security deposit Credit card required
Manresa Spain, 08240 Manresa
03/06/2021 11:15
0 Bids
2,000 €
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BLOHM HANSEAT 7 Surface Grinding Machine
play video
Dimensions (l x w x h) approx. 2,700 x 1,700 x 2,000 mm
Year of manufacture 1983
Weight approx. 2,700 kg
Item available from immediately
Delivery terms FCA Eckernförde, loaded on truck
Eckernförde Germany, 24340 Eckernförde
19/05/2021 10:46
0 Bids
1,800 €
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TSCHUDIN HTG 600 External Cylindrical Grinder
Ends tomorrow!
Dimensions (l x w x h) approx. 2,400 x 1,400 x 1,700 mm
Weight approx. 2,200 kg
Item available from immediately
Delivery terms FCA Malsch, loaded on truck
Malsch Germany, 76316 Malsch
12/05/2021 10:21
0 Bids
1,500 €
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Definition: Grinding Machines

Grinding machines have been known since ancient times. The original manual machines for shaping, sharpening or smoothing are used today as conventional or CNC grinding machines in various industries. Generally, grinding wheels and grinding belts reach higher accuracies than machining with geometrically undefined cutting edges. For this reason, tool grinding machines, circular grinders, surface grinders, bench grinders, etc., are essential for many stages of production for the industry and crafts. At Surplex you will find a great variety of grinding machines and its corresponding accessories such as used grinding wheels, wheel spindles and many more. High quality for the best price!

Metalworking grinding machines

Index

  1. Levelling and adjusting with metal grinders
    1. Surface planing
    2. Achieving the right dimensions
    3. Preparation for onward processing
  2. Grinding machine design
  3. Types of grinder machines
    1. Bore grinding machines
    2. Surface grinders
    3. Guideway grinding machines
    4. Double-disc grinding machines
    5. Internal grinding machines
    6. Jig grinders
    7. Knife grinding machines
    8. Cylindrical grinders & centreless grinding machines
    9. Bench grinders (one- and two-sided)
    10. Stylus grinding machines
    11. Crock grinding machines
    12. Roll grinding machines
    13. Tool grinding machines
  4. What do I need to know when buying a used grinding machine?

Levelling and adjusting with metal grinders

Grinding machines take over once the job of the cutting machine is complete. They remove tiny particles from the surface and can be used to achieve various objectives:

  • Surface planing
  • Achieving the right dimensions
  • Preparation for onward processing

Surface planing


In the metalworking industry, dimensions need to be precise down to a thousandth of a millimetre. Even a surface that feels smooth to the touch may be far too rough for the intended application. Milling machines and lathes, for instance, can produce outstanding dimensional accuracy, but the ‘final touch’ can only be applied using an appropriate grinding machine.

This particularly applies to surfaces subject to narrow tolerances: piston tracks in combustion engine cylinders, for example. They need to precisely and securely guide the piston rings within a wide temperature and speed range without jamming, which can only be ensured through use of a metal grinder.

Achieving the right dimensions


Grinding machines work without tools: all they need is the corresponding abrasive medium, such as types of paper and textiles with an abrasive surface. Grinding stones are also used and consist of a pressed and fired abrasive medium – mostly quartz sand. The finer the abrasive medium, the less surface that will be removed per grinding cycle.

And if solid abrasive media are insufficient to achieve the desired dimensions, fluid abrasive agents are another alternative. Wet polishing machines and lapping machines facilitate this type of abrasion.

Preparation for onward processing


Polishing and lapping processes are used for achieving the best dimensional accuracy and a consistently smooth surface, which is ideal for galvanising applications, for example. A product can only be galvanised or chrome-plated if it has been polished to a very high sheen.

A smooth surface is also essential when using painting systems or powder-coating machines and grinding machines may be used for this purpose as well.

Grinding machine design

In contrast to cutting machines, such as lathes or mills, grinding machines are designed in a very simple way. They comprise:

  • a work table
  • a guide for the grinding media carrier
  • a drive

The most widespread are round- and belt-shaped grinding media carriers, as well as roll-based grinding machines.

Round grinding media carriers are used in eccentric and plate grinders. They consist of a circular surface and the media are either moved radially or eccentrically. Radial grinding machines are designed very simply and are affordable.

Grinders with a belt-type abrasive medium carrier are called belt grinding machines. These types of grinder involve a grinding belt being tensioned between a drive roller and one or two tensioning rollers. They are used to remove outer layers from materials consistently and smoothly. Belt grinding machines remove a pre-defined quantity of material per work cycle, which makes it easy to maintain dimensional accuracy by spreading the abrasion process across different work cycles with varying grinding heights. Belt grinding machines are also designed to be simple and are thus easy to maintain.

Roll- or cylindrical grinding machines work using cylindrical abrasive media and are used to grind interior radii as well as surfaces.

A metal grinder always consists of cooling lubrication and powerful extraction. The particles removed from the workpiece need to be transported away as quickly as possible since fine metallic dust can quickly lead to heavy wear and tear. This particularly applies to iron-containing dusts, which increase in volume as they corrode and lead to further damage.

Types of grinder machines

There are many types of industrial grinders and CNC grinders available to metalworking operations of all sizes. See below for a selection of the most widely used types of metal grinding machines.

Bore grinding machines


Bore grinding machines are used to bore holes in metal, stone and wood. This type of machine is also offered by budget manufacturers and is designed for private use.

Professional bore grinding machines for industrial use are manufactured by FARMAN, FROEHLICH, KLINGEL, SCHANBACHER and SCHLUMBERGER.

Surface grinders


Surface grinders are used when an extremely flat surface is needed. They work using a grinding disc that is consistently guided across a workpiece. These machines are key to the tool-building and mould construction industries and can be relied on to achieve the required dimensional accuracy.

Surface grinders are manufactured by ABA, BLOHM , ELB-SCHLIFF, JUNG and KUGELMÜLLER.

Guideway grinding machines


Guideway grinding machines, as the name suggests, are used to grind guideways and are deployed wherever very large cutting machines are being manufactured. Mechanical guideways need to be very precise and the guideway grinders on offer today can achieve tolerances of 1/1000 of a millimetre across seven metres of length.

Guideway grinding machines primarily operate using grinding stones. The abrasion caused by the stone is factored into the pressing force to ensure the results achieved are consistent.

Well-known manufacturers of guideway grinding machines include MEUSER MOL, SHW, SCHMALTZ, WALDRICH-COBURG and KRAFT.

Double-disc grinding machines


Double-disc grinding machines are highly efficient pieces of kit. They enable workpiece processing to be performed simultaneously on the front and back side per work cycle.

Popular manufacturers of double-disc grinding machines include: DISKUS, GIUSTINA, KOYO, BESLY, C+B MACHINERY and JUNKER.

Internal grinding machines


Internal (cylindrical) grinding machines are used to create consistent and accurate internal radii. They work using roll-shaped grinding bodies. The internal grinding machines available today feature computerised numerical control (CNC) and can thus achieve the strictest of tolerances.

Manufacturers of internal grinding machines include: DANOBAT, HANKOOK, TRIPET, JUNG and VOUMARD.

Jig grinders


Jig grinders feature CN controls and a very small grinding body. They are used to grind away at specific points on a workpiece as required by the respective production process. As such, jig grinders feature a very similar design to CNC mills.

Jig grinders are some of the most expensive and complex grinding machines available and are produced by HAUSER, DECKEL, MOORE, MIKROMAT und KELLENBERGER.

Knife grinding machines


Knife grinding machines are used to sharpen blades, knives and scissors, as well as to grind chisels.

Knife grinding machines are made by BERNADO, KNECHT, GOWEIL, TORMEK and SCHEPPACH.

Cylindrical grinders & centreless grinding machines


Cylindrical grinders serve to grind profiles, pipes and round steels in a cylindrical manner. Tensioning cylindrical grinding machines use centre tips similar to the tail stocks of lathes. Centreless grinding machines, by contrast, can be used to indefinitely process profiles without any clamping process being required.

Major manufacturers of cylindrical grinders include STUDER, OMICRON, KARSTENS, SCHAUDT and HERMINGHAUSEN.

Bench grinders (one- and two-sided)


Bench grinders are standard grinding tools that are found in every workshop. A bench grinder can be used to sharpen, grind, plane, or deburr a workpiece by hand. They consist of a motor to which one or two grinding discs are attached. They are produced in single- and double-sided variants.

The best quality bench grinders can be acquired from ELEKTRA BECKUM, MAKITA, GREIF and REMA.

Stylus grinding machines


Stylus grinding machines are used to grind marking tools, such as styli. Their primary application, however, is to sharpen milling heads, which makes them very similar to bore grinding machines.

Popular manufacturers of stylus grinding machines include BERNARDO, DECKEL, HASBERG, KUHLMANN, PARPAS and SCRIPTA.

Crock grinding machines


A crock grinding machine is a device used to grind pots, or ‘crocks’ in the US vernacular. Its name comes from the way the tool is guided: the grinding disc is mounted in a pot-shaped guide. The drive, guiding mechanism and grinding head are attached to a pivoting arm. Crock grinding machines are ideal for grinding and changing dimensions on small workpieces and are operated by hand.

Manufacturers of crock grinding machines include: DELTA, EDEL, KUGELMÜLLER, UNICUM and NYBERG.

Roll grinding machines


A Roll grinding machines serve to precisely grind press rollers to the desired dimensions. They can be used to grind new, used and freshly turned rollers to achieve the required tolerance. Precision rollers can only be created using a roll grinding machine.

These machines are produced by HARKOV, HERKULES, KELLENBERGER, SCHAUDT, WALDRICH and ZIMMERMANN.

Tool-grinding machines


Tool-grinding machines are the predecessors of the jig grinder. They are used to manufacture and repair crimping tools and casting tools.

The most well-known manufacturers of this machine are: AGATHON, CLARKSON, DECKEL, EWAG, HAHN & KOLB, TRUMPF and WALTER.

What do I need to know when buying a used grinding machine?

The wide variety of grinders for sale does not make it easy to choose the right device, but there are some general tips that any prospective buyer of a second-hand grinding machine should know. The first consideration is what applications the (used) device should perform – a simple bench grinder is incomparable to a complex jig grinder.

Cleanliness and condition

A good starting point is to look at the general condition and cleanliness of the machine. Even with comprehensive rinsing and extraction units, grinding machines require a great deal of cleaning – daily, thorough cleaning is essential for any frequently used grinder. If the first thing you notice about a second-hand grinding machine is that it is soiled, you should definitely take a very close look at the machine from all aspects.

Unless you buy a metal grinding machine from a trader in used machinery who has taken care of the maintenance and repair tasks, it will be necessary to completely dismantle and clean the equipment. If those intending to repair/maintain a used metal-grinding machine are lacking in qualifications to do so, a specialist service provider should be commissioned.

Weakpoint: bearings

The weakest points in all used grinding machines are the bearings: the high speed experienced by the grinding spindles, the continual one-sided impact, and grinding heads that frequently lose their shape have a major effect on the bearings. It is therefore important that the bearings are inspected and, if there is the slightest amount of rattling, replaced. Once equipped with new bearings, a used metal grinder can continue operating for thousands of hours to come.

Those looking to buy a used grinding machine will find everything they need at Surplex. We regularly have second-hand grinders for sale. You can purchase machines via our portal where you will regularly find online auctions featuring a wide range of grinding machine types for a variety of needs and at attractive prices. The metal grinders for sale are generally in a good to very good condition.

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