Used Colmal Sheet Shears Colmal Hs40-13 2008 for sale (19,370)

  • Sort results

  • Lowest price Highest price
  • Newest listings Oldest listings
  • Shortest distance Farthest distance
  • Newest year of manufacture Oldest year of manufacture
  • Latest update Oldest update
  • Manufacturer A to Z Manufacturer Z to A
  • Relevance
Lowest price
Price
Highest price
Price
Newest listings
Release date
Oldest listings
Release date
Shortest distance
Distance
Farthest distance
Distance
Newest year of manufacture
Year of construction
Oldest year of manufacture
Year of construction
Latest update
Update
Oldest update
Update
Manufacturer A to Z
Manufacturer
Manufacturer Z to A
Manufacturer
designation from A to Z
Description
designation from Z to A
Description
Model from A to Z
Model
Model from Z to A
Model
Lowest reference
Ref.No.
Highest reference
Ref.No.
Shortest runtime
Runtime
Longest duration
Runtime
Relevance
Relevance
Listing
Sheet Metal Shear VON ARX HSD 4.2000
Sheet Metal Shear VON ARX HSD 4.2000
Sheet Metal Shear VON ARX HSD 4.2000
Sheet Metal Shear VON ARX HSD 4.2000
Sheet Metal Shear VON ARX HSD 4.2000
Sheet Metal Shear VON ARX HSD 4.2000
Sheet Metal Shear VON ARX HSD 4.2000
more images
Switzerland Jonschwil
1,391 km

Sheet Metal Shear
VON ARXHSD 4.2000

Call
Listing
Sheet Metal Shear PROMECAM BRG 3000X10
Sheet Metal Shear PROMECAM BRG 3000X10
Sheet Metal Shear PROMECAM BRG 3000X10
Sheet Metal Shear PROMECAM BRG 3000X10
Sheet Metal Shear PROMECAM BRG 3000X10
Sheet Metal Shear PROMECAM BRG 3000X10
Sheet Metal Shear PROMECAM BRG 3000X10
more images
Switzerland Jonschwil
1,391 km

Sheet Metal Shear
PROMECAMBRG 3000X10

Call
Listing
Sheet Metal Shear ADIRA GHO 1020
Sheet Metal Shear ADIRA GHO 1020
Sheet Metal Shear ADIRA GHO 1020
Sheet Metal Shear ADIRA GHO 1020
Sheet Metal Shear ADIRA GHO 1020
Sheet Metal Shear ADIRA GHO 1020
Sheet Metal Shear ADIRA GHO 1020
Sheet Metal Shear ADIRA GHO 1020
more images
Switzerland Jonschwil
1,391 km

Sheet Metal Shear
ADIRAGHO 1020

Call
Listing
Sheet metal shears METALLKRAFT MTBS 1540-40B
Sheet metal shears METALLKRAFT MTBS 1540-40B
Sheet metal shears METALLKRAFT MTBS 1540-40B
Sheet metal shears METALLKRAFT MTBS 1540-40B
Sheet metal shears METALLKRAFT MTBS 1540-40B
Sheet metal shears METALLKRAFT MTBS 1540-40B
Sheet metal shears METALLKRAFT MTBS 1540-40B
Sheet metal shears METALLKRAFT MTBS 1540-40B
Sheet metal shears METALLKRAFT MTBS 1540-40B
Sheet metal shears METALLKRAFT MTBS 1540-40B
Sheet metal shears METALLKRAFT MTBS 1540-40B
Sheet metal shears METALLKRAFT MTBS 1540-40B
more images
Germany Bleicherode
1,292 km

Sheet metal shears
METALLKRAFTMTBS 1540-40B

Call
Listing
Sheet shears Piesok NTE 3150/6.3A
Sheet shears Piesok NTE 3150/6.3A
Sheet shears Piesok NTE 3150/6.3A
Sheet shears Piesok NTE 3150/6.3A
Sheet shears Piesok NTE 3150/6.3A
Sheet shears Piesok NTE 3150/6.3A
Sheet shears Piesok NTE 3150/6.3A
Sheet shears Piesok NTE 3150/6.3A
more images
Germany Sonneberg
1,372 km

Sheet shears Piesok NTE 3150/6.3A

Call
Listing
Sheet metal guillotine, shear, Prod-Masz Tafelschere Schlagschere Tafelschere 2m 2050mm/1.25mm
Sheet metal guillotine, shear, Prod-Masz Tafelschere Schlagschere Tafelschere 2m 2050mm/1.25mm
Sheet metal guillotine, shear, Prod-Masz Tafelschere Schlagschere Tafelschere 2m 2050mm/1.25mm
Sheet metal guillotine, shear, Prod-Masz Tafelschere Schlagschere Tafelschere 2m 2050mm/1.25mm
Sheet metal guillotine, shear, Prod-Masz Tafelschere Schlagschere Tafelschere 2m 2050mm/1.25mm
Sheet metal guillotine, shear, Prod-Masz Tafelschere Schlagschere Tafelschere 2m 2050mm/1.25mm
Sheet metal guillotine, shear, Prod-Masz Tafelschere Schlagschere Tafelschere 2m 2050mm/1.25mm
Sheet metal guillotine, shear, Prod-Masz Tafelschere Schlagschere Tafelschere 2m 2050mm/1.25mm
Sheet metal guillotine, shear, Prod-Masz Tafelschere Schlagschere Tafelschere 2m 2050mm/1.25mm
Sheet metal guillotine, shear, Prod-Masz Tafelschere Schlagschere Tafelschere 2m 2050mm/1.25mm
Sheet metal guillotine, shear, Prod-Masz Tafelschere Schlagschere Tafelschere 2m 2050mm/1.25mm
Sheet metal guillotine, shear, Prod-Masz Tafelschere Schlagschere Tafelschere 2m 2050mm/1.25mm
Sheet metal guillotine, shear, Prod-Masz Tafelschere Schlagschere Tafelschere 2m 2050mm/1.25mm
more images
Austria Wien
1,815 km

Sheet metal guillotine, shear,
Prod-Masz Tafelschere SchlagschereTafelschere 2m 2050mm/1.25mm

Call
Listing
Holzmann TBS 1320 sheet metal shears Nożyce do cięcia blachy Holzmann TBS 132 Nożyce do cięcia blachy Holzmann TBS 132
Holzmann TBS 1320 sheet metal shears Nożyce do cięcia blachy Holzmann TBS 132 Nożyce do cięcia blachy Holzmann TBS 132
Holzmann TBS 1320 sheet metal shears Nożyce do cięcia blachy Holzmann TBS 132 Nożyce do cięcia blachy Holzmann TBS 132
Holzmann TBS 1320 sheet metal shears Nożyce do cięcia blachy Holzmann TBS 132 Nożyce do cięcia blachy Holzmann TBS 132
Holzmann TBS 1320 sheet metal shears Nożyce do cięcia blachy Holzmann TBS 132 Nożyce do cięcia blachy Holzmann TBS 132
Holzmann TBS 1320 sheet metal shears Nożyce do cięcia blachy Holzmann TBS 132 Nożyce do cięcia blachy Holzmann TBS 132
Holzmann TBS 1320 sheet metal shears Nożyce do cięcia blachy Holzmann TBS 132 Nożyce do cięcia blachy Holzmann TBS 132
Holzmann TBS 1320 sheet metal shears Nożyce do cięcia blachy Holzmann TBS 132 Nożyce do cięcia blachy Holzmann TBS 132
Holzmann TBS 1320 sheet metal shears Nożyce do cięcia blachy Holzmann TBS 132 Nożyce do cięcia blachy Holzmann TBS 132
Holzmann TBS 1320 sheet metal shears Nożyce do cięcia blachy Holzmann TBS 132 Nożyce do cięcia blachy Holzmann TBS 132
Holzmann TBS 1320 sheet metal shears Nożyce do cięcia blachy Holzmann TBS 132 Nożyce do cięcia blachy Holzmann TBS 132
Holzmann TBS 1320 sheet metal shears Nożyce do cięcia blachy Holzmann TBS 132 Nożyce do cięcia blachy Holzmann TBS 132
Holzmann TBS 1320 sheet metal shears Nożyce do cięcia blachy Holzmann TBS 132 Nożyce do cięcia blachy Holzmann TBS 132
Holzmann TBS 1320 sheet metal shears Nożyce do cięcia blachy Holzmann TBS 132 Nożyce do cięcia blachy Holzmann TBS 132
Holzmann TBS 1320 sheet metal shears Nożyce do cięcia blachy Holzmann TBS 132 Nożyce do cięcia blachy Holzmann TBS 132
more images
Poland Kłodawa
1,562 km

Holzmann TBS 1320 sheet metal shears
Nożyce do cięcia blachy Holzmann TBS 132Nożyce do cięcia blachy Holzmann TBS 132

Call
Listing
Sheet metal shear OK GÉP XCM 3
Sheet metal shear OK GÉP XCM 3
Sheet metal shear OK GÉP XCM 3
more images
Hungary Budapest
2,040 km

Sheet metal shear
OK GÉPXCM 3

Call
Listing
Telescopic work platform Genie Z 135 | 2008
Telescopic work platform Genie Z 135 | 2008
Telescopic work platform Genie Z 135 | 2008
Telescopic work platform Genie Z 135 | 2008
Telescopic work platform Genie Z 135 | 2008
Telescopic work platform Genie Z 135 | 2008
Telescopic work platform Genie Z 135 | 2008
Telescopic work platform Genie Z 135 | 2008
Telescopic work platform Genie Z 135 | 2008
Telescopic work platform Genie Z 135 | 2008
Telescopic work platform Genie Z 135 | 2008
Telescopic work platform Genie Z 135 | 2008
Telescopic work platform Genie Z 135 | 2008
Telescopic work platform Genie Z 135 | 2008
Telescopic work platform Genie Z 135 | 2008
Telescopic work platform Genie Z 135 | 2008
Telescopic work platform Genie Z 135 | 2008
Telescopic work platform Genie Z 135 | 2008
Telescopic work platform Genie Z 135 | 2008
more images
Netherlands Sittard
996 km

Telescopic work platform
GenieZ 135 | 2008

Call
Listing
Construction machine JBM 630 MDX Holzhacker / nur 133h / 2008
Construction machine JBM 630 MDX Holzhacker / nur 133h / 2008
Construction machine JBM 630 MDX Holzhacker / nur 133h / 2008
Construction machine JBM 630 MDX Holzhacker / nur 133h / 2008
Construction machine JBM 630 MDX Holzhacker / nur 133h / 2008
Construction machine JBM 630 MDX Holzhacker / nur 133h / 2008
Construction machine JBM 630 MDX Holzhacker / nur 133h / 2008
Construction machine JBM 630 MDX Holzhacker / nur 133h / 2008
Construction machine JBM 630 MDX Holzhacker / nur 133h / 2008
Construction machine JBM 630 MDX Holzhacker / nur 133h / 2008
Construction machine JBM 630 MDX Holzhacker / nur 133h / 2008
Construction machine JBM 630 MDX Holzhacker / nur 133h / 2008
Construction machine JBM 630 MDX Holzhacker / nur 133h / 2008
Construction machine JBM 630 MDX Holzhacker / nur 133h / 2008
Construction machine JBM 630 MDX Holzhacker / nur 133h / 2008
more images
Germany Burghaun
1,265 km

Construction machine
JBM630 MDX Holzhacker / nur 133h / 2008

Call
Listing
Industrial robot ABB IRB6640-130/3.2 IRC5 2008 MODEL
Industrial robot ABB IRB6640-130/3.2 IRC5 2008 MODEL
Industrial robot ABB IRB6640-130/3.2 IRC5 2008 MODEL
Industrial robot ABB IRB6640-130/3.2 IRC5 2008 MODEL
Industrial robot ABB IRB6640-130/3.2 IRC5 2008 MODEL
Industrial robot ABB IRB6640-130/3.2 IRC5 2008 MODEL
Industrial robot ABB IRB6640-130/3.2 IRC5 2008 MODEL
more images
Bulgaria Burgas
2,880 km

Industrial robot
ABBIRB6640-130/3.2 IRC5 2008 MODEL

Certified Dealer
Call
Listing
Modular shelf 13 lfm SSI Schäfer R3000 Fachbodenregal 249cm hoch, 50cm tief, 6 Lagerebenen
Modular shelf 13 lfm SSI Schäfer R3000 Fachbodenregal 249cm hoch, 50cm tief, 6 Lagerebenen
Modular shelf 13 lfm SSI Schäfer R3000 Fachbodenregal 249cm hoch, 50cm tief, 6 Lagerebenen
Modular shelf 13 lfm SSI Schäfer R3000 Fachbodenregal 249cm hoch, 50cm tief, 6 Lagerebenen
Modular shelf 13 lfm SSI Schäfer R3000 Fachbodenregal 249cm hoch, 50cm tief, 6 Lagerebenen
Modular shelf 13 lfm SSI Schäfer R3000 Fachbodenregal 249cm hoch, 50cm tief, 6 Lagerebenen
Modular shelf 13 lfm SSI Schäfer R3000 Fachbodenregal 249cm hoch, 50cm tief, 6 Lagerebenen
Modular shelf 13 lfm SSI Schäfer R3000 Fachbodenregal 249cm hoch, 50cm tief, 6 Lagerebenen
Modular shelf 13 lfm SSI Schäfer R3000 Fachbodenregal 249cm hoch, 50cm tief, 6 Lagerebenen
Modular shelf 13 lfm SSI Schäfer R3000 Fachbodenregal 249cm hoch, 50cm tief, 6 Lagerebenen
more images
Germany Wietmarschen
1,040 km

Modular shelf
13 lfm SSI Schäfer R3000 Fachbodenregal249cm hoch, 50cm tief, 6 Lagerebenen

Call
Listing
Kopierer-Welt - Long sheet feeder BDT VX 370 long sheet feeder Canon + Ricoh
Kopierer-Welt - Long sheet feeder BDT VX 370 long sheet feeder Canon + Ricoh
Kopierer-Welt - Long sheet feeder BDT VX 370 long sheet feeder Canon + Ricoh
Kopierer-Welt - Long sheet feeder BDT VX 370 long sheet feeder Canon + Ricoh
Kopierer-Welt - Long sheet feeder BDT VX 370 long sheet feeder Canon + Ricoh
Kopierer-Welt - Long sheet feeder BDT VX 370 long sheet feeder Canon + Ricoh
Kopierer-Welt - Long sheet feeder BDT VX 370 long sheet feeder Canon + Ricoh
Kopierer-Welt - Long sheet feeder BDT VX 370 long sheet feeder Canon + Ricoh
Kopierer-Welt - Long sheet feeder BDT VX 370 long sheet feeder Canon + Ricoh
more images
Germany Langenfeld (Rheinland)
1,065 km

Kopierer-Welt - Long sheet feeder
BDT VX 370 long sheet feederCanon + Ricoh

Certified Dealer
Call
Listing
Prufhaube schleich test cover 13-r2 laboratory test enclosure Prufhaube schleich test cover 13-r2 osłona testowa laboratoryjna Prufhaube schleich test cover 13-r2 osłona testowa laboratoryjna
Prufhaube schleich test cover 13-r2 laboratory test enclosure Prufhaube schleich test cover 13-r2 osłona testowa laboratoryjna Prufhaube schleich test cover 13-r2 osłona testowa laboratoryjna
Prufhaube schleich test cover 13-r2 laboratory test enclosure Prufhaube schleich test cover 13-r2 osłona testowa laboratoryjna Prufhaube schleich test cover 13-r2 osłona testowa laboratoryjna
Prufhaube schleich test cover 13-r2 laboratory test enclosure Prufhaube schleich test cover 13-r2 osłona testowa laboratoryjna Prufhaube schleich test cover 13-r2 osłona testowa laboratoryjna
Prufhaube schleich test cover 13-r2 laboratory test enclosure Prufhaube schleich test cover 13-r2 osłona testowa laboratoryjna Prufhaube schleich test cover 13-r2 osłona testowa laboratoryjna
Prufhaube schleich test cover 13-r2 laboratory test enclosure Prufhaube schleich test cover 13-r2 osłona testowa laboratoryjna Prufhaube schleich test cover 13-r2 osłona testowa laboratoryjna
more images
Poland Wymysłów
1,785 km

Prufhaube schleich test cover 13-r2 laboratory test enclosure
Prufhaube schleich test cover 13-r2 osłona testowa laboratoryjnaPrufhaube schleich test cover 13-r2 osłona testowa laboratoryjna

Certified Dealer
Call
Listing
Vetter Type 1/13 (VSM 14) + hoses + set Vetter Typ 1/13 (VSM 14) + węże + zestaw Vetter Typ 1/13 (VSM 14) + węże + zestaw
Vetter Type 1/13 (VSM 14) + hoses + set Vetter Typ 1/13 (VSM 14) + węże + zestaw Vetter Typ 1/13 (VSM 14) + węże + zestaw
Vetter Type 1/13 (VSM 14) + hoses + set Vetter Typ 1/13 (VSM 14) + węże + zestaw Vetter Typ 1/13 (VSM 14) + węże + zestaw
Vetter Type 1/13 (VSM 14) + hoses + set Vetter Typ 1/13 (VSM 14) + węże + zestaw Vetter Typ 1/13 (VSM 14) + węże + zestaw
Vetter Type 1/13 (VSM 14) + hoses + set Vetter Typ 1/13 (VSM 14) + węże + zestaw Vetter Typ 1/13 (VSM 14) + węże + zestaw
Vetter Type 1/13 (VSM 14) + hoses + set Vetter Typ 1/13 (VSM 14) + węże + zestaw Vetter Typ 1/13 (VSM 14) + węże + zestaw
Vetter Type 1/13 (VSM 14) + hoses + set Vetter Typ 1/13 (VSM 14) + węże + zestaw Vetter Typ 1/13 (VSM 14) + węże + zestaw
Vetter Type 1/13 (VSM 14) + hoses + set Vetter Typ 1/13 (VSM 14) + węże + zestaw Vetter Typ 1/13 (VSM 14) + węże + zestaw
Vetter Type 1/13 (VSM 14) + hoses + set Vetter Typ 1/13 (VSM 14) + węże + zestaw Vetter Typ 1/13 (VSM 14) + węże + zestaw
more images
Poland Wymysłów
1,785 km

Vetter Type 1/13 (VSM 14) + hoses + set
Vetter Typ 1/13 (VSM 14) + węże + zestawVetter Typ 1/13 (VSM 14) + węże + zestaw

Certified Dealer
Call
Listing
Laser cutting machine High-speed Laser Sheet Metal Machine 3015H with CE Configuration
Laser cutting machine High-speed Laser Sheet Metal Machine 3015H with CE Configuration
Laser cutting machine High-speed Laser Sheet Metal Machine 3015H with CE Configuration
more images
Germany Erwitte
1,138 km

Laser cutting machine
High-speed Laser Sheet Metal Machine3015H with CE Configuration

Call
Listing
Sheet Laser Cutting Machine Fiber laser sheet cutting machine 12025 MAX 3kW- 40kW
Sheet Laser Cutting Machine Fiber laser sheet cutting machine 12025 MAX 3kW- 40kW
Sheet Laser Cutting Machine Fiber laser sheet cutting machine 12025 MAX 3kW- 40kW
more images
Germany Erwitte
1,138 km

Sheet Laser Cutting Machine
Fiber laser sheet cutting machine12025 MAX 3kW- 40kW

Call
Listing
ENCODER EPAL MEM520 MEM520-13-15B-5/28-R-6-SSI
ENCODER EPAL MEM520 MEM520-13-15B-5/28-R-6-SSI
ENCODER EPAL MEM520 MEM520-13-15B-5/28-R-6-SSI
ENCODER EPAL MEM520 MEM520-13-15B-5/28-R-6-SSI
ENCODER EPAL MEM520 MEM520-13-15B-5/28-R-6-SSI
ENCODER EPAL MEM520 MEM520-13-15B-5/28-R-6-SSI
ENCODER EPAL MEM520 MEM520-13-15B-5/28-R-6-SSI
more images
Italy Pollenzo
1,520 km

ENCODER EPAL MEM520
MEM520-13-15B-5/28-R-6-SSI

Certified Dealer
Call
Listing
Control unit Siemens 1FT6064-1AF71-3EG1 Brushless Servomotor SN: YFN717031502008
Control unit Siemens 1FT6064-1AF71-3EG1 Brushless Servomotor SN: YFN717031502008
Control unit Siemens 1FT6064-1AF71-3EG1 Brushless Servomotor SN: YFN717031502008
Control unit Siemens 1FT6064-1AF71-3EG1 Brushless Servomotor SN: YFN717031502008
more images
Remscheid
1,078 km

Control unit
Siemens1FT6064-1AF71-3EG1 Brushless Servomotor SN: YFN717031502008

Certified Dealer
Call
Listing
Forklift battery 48V 3PZS 375Ah - special tray Toyota 2FBE10/13 5FBE10/13 7FBE13 7FBRE16N - BT RR-M 14 RRE - 140 RRE 160
Forklift battery 48V 3PZS 375Ah - special tray Toyota 2FBE10/13 5FBE10/13 7FBE13 7FBRE16N - BT RR-M 14 RRE - 140 RRE 160
Forklift battery 48V 3PZS 375Ah - special tray Toyota 2FBE10/13 5FBE10/13 7FBE13 7FBRE16N - BT RR-M 14 RRE - 140 RRE 160
more images
Germany Mannheim
1,238 km

Forklift battery 48V 3PZS 375Ah - special tray
Toyota 2FBE10/13 5FBE10/13 7FBE137FBRE16N - BT RR-M 14 RRE - 140 RRE 160

Call
Listing
Laser cutting machine Single Table Laser Sheet Cutting Machine GS-3015CS 3000W
Laser cutting machine Single Table Laser Sheet Cutting Machine GS-3015CS 3000W
more images
Germany Erwitte
1,138 km

Laser cutting machine
Single Table Laser Sheet Cutting MachineGS-3015CS 3000W

Call
Siegel

Trust Seal

Dealers certified through Machineseeker

Trust Seal
Listing
Profile line Demaq Sheet Processing Lines DP1
more images
Spain Vilalba
1,126 km

Profile line
Demaq Sheet Processing LinesDP1

Call
Listing
Laser cutting machine Sheet Laser Cutting Machine VS-3015CE 6KW
Laser cutting machine Sheet Laser Cutting Machine VS-3015CE 6KW
Laser cutting machine Sheet Laser Cutting Machine VS-3015CE 6KW
Laser cutting machine Sheet Laser Cutting Machine VS-3015CE 6KW
more images
Germany Erwitte
1,138 km

Laser cutting machine
Sheet Laser Cutting MachineVS-3015CE 6KW

Call
Listing
Tool holder Uchwyt wiertarski GEWEFA SK40 Ø1–13 mm Uchwyt wiertarski GEWEFA SK40 Ø1–13mm
Tool holder Uchwyt wiertarski GEWEFA SK40 Ø1–13 mm Uchwyt wiertarski GEWEFA SK40 Ø1–13mm
Tool holder Uchwyt wiertarski GEWEFA SK40 Ø1–13 mm Uchwyt wiertarski GEWEFA SK40 Ø1–13mm
Tool holder Uchwyt wiertarski GEWEFA SK40 Ø1–13 mm Uchwyt wiertarski GEWEFA SK40 Ø1–13mm
Tool holder Uchwyt wiertarski GEWEFA SK40 Ø1–13 mm Uchwyt wiertarski GEWEFA SK40 Ø1–13mm
more images
Poland Wymysłów
1,785 km

Tool holder
Uchwyt wiertarski GEWEFA SK40 Ø1–13 mmUchwyt wiertarski GEWEFA SK40 Ø1–13mm

Certified Dealer
Call
Auction
Hydraulic guillotine shear Durma VS 3010
Hydraulic guillotine shear Durma VS 3010
Hydraulic guillotine shear Durma VS 3010
Hydraulic guillotine shear Durma VS 3010
Hydraulic guillotine shear Durma VS 3010
Hydraulic guillotine shear Durma VS 3010
Hydraulic guillotine shear Durma VS 3010
Hydraulic guillotine shear Durma VS 3010
Hydraulic guillotine shear Durma VS 3010
Hydraulic guillotine shear Durma VS 3010
Hydraulic guillotine shear Durma VS 3010
Hydraulic guillotine shear Durma VS 3010
Hydraulic guillotine shear Durma VS 3010
Ends in 
min  Auction ended
Netherlands Gelderland
961 km

Hydraulic guillotine shear
DurmaVS 3010

buyer-protection

This may be of interest to you

Biggest excavator

Photo gallery: The World's 10 biggest excavators

receive any e-mails from Machineseeker

How to receive 100% of our e-mails

Machineseeker Auctions

Sales with maximum attention: Selected auction highlights

Sell more machines!

Sell now on Machineseeker! Over 250,000 inquiries per month

Machinseeker Olympic Games

Olympic Games: Machineseeker supports “Team Germany” in Paris

Tricks for buying used machines

10 valuable tricks for buying used machines online