Used Aircraft Compressor Aircraft Airprofi 703/100 -Used- for sale (56,472)

  • 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
Welding Turn Table, Rotary Table Protec KT 100 KT 100
Welding Turn Table, Rotary Table Protec KT 100 KT 100
Welding Turn Table, Rotary Table Protec KT 100 KT 100
Welding Turn Table, Rotary Table Protec KT 100 KT 100
Welding Turn Table, Rotary Table Protec KT 100 KT 100
Welding Turn Table, Rotary Table Protec KT 100 KT 100
more images
Germany Hergensweiler
1,423 km

Welding Turn Table, Rotary Table
Protec KT 100KT 100

Certified Dealer
Call
Listing
Welding Turn Table, Rotary Table Protec KT 100 KT 100
Welding Turn Table, Rotary Table Protec KT 100 KT 100
Welding Turn Table, Rotary Table Protec KT 100 KT 100
Welding Turn Table, Rotary Table Protec KT 100 KT 100
Welding Turn Table, Rotary Table Protec KT 100 KT 100
Welding Turn Table, Rotary Table Protec KT 100 KT 100
more images
Hergensweiler
1,423 km

Welding Turn Table, Rotary Table
Protec KT 100KT 100

Certified Dealer
Call
Listing
Shredder, grinder Granulator Herbold AMIS SM 60/100 7-2 90kW
Shredder, grinder Granulator Herbold AMIS SM 60/100 7-2 90kW
Shredder, grinder Granulator Herbold AMIS SM 60/100 7-2 90kW
Shredder, grinder Granulator Herbold AMIS SM 60/100 7-2 90kW
Shredder, grinder Granulator Herbold AMIS SM 60/100 7-2 90kW
Shredder, grinder Granulator Herbold AMIS SM 60/100 7-2 90kW
Shredder, grinder Granulator Herbold AMIS SM 60/100 7-2 90kW
Shredder, grinder Granulator Herbold AMIS SM 60/100 7-2 90kW
Shredder, grinder Granulator Herbold AMIS SM 60/100 7-2 90kW
Shredder, grinder Granulator Herbold AMIS SM 60/100 7-2 90kW
Shredder, grinder Granulator Herbold AMIS SM 60/100 7-2 90kW
Shredder, grinder Granulator Herbold AMIS SM 60/100 7-2 90kW
Shredder, grinder Granulator Herbold AMIS SM 60/100 7-2 90kW
Shredder, grinder Granulator Herbold AMIS SM 60/100 7-2 90kW
more images
Hungary Tata
1,972 km

Shredder, grinder Granulator
Herbold AMIS SM 60/100 7-290kW

Call
Listing
Compressed air refrigeration dryer AD 72 Aircraft AIRCRAFT Druckluft-Kältetrockner  AD 72 Aircraft
Compressed air refrigeration dryer AD 72 Aircraft AIRCRAFT Druckluft-Kältetrockner  AD 72 Aircraft
more images
Germany Bad Honnef
1,107 km

Compressed air refrigeration dryer AD 72 Aircraft
AIRCRAFTDruckluft-Kältetrockner AD 72 Aircraft

Certified Dealer
Call
Listing
Light roller conveyor curve 90° unbekannt 1000003703, FB: 600 mm
Light roller conveyor curve 90° unbekannt 1000003703, FB: 600 mm
more images
Germany Rottendorf
1,322 km

Light roller conveyor curve 90°
unbekannt1000003703, FB: 600 mm

Call
Listing
Control unit Siemens 1FK7034-5AK71-1DA0 Servomotor SN:YFB326653701001 -neuwertig-
Control unit Siemens 1FK7034-5AK71-1DA0 Servomotor SN:YFB326653701001 -neuwertig-
Control unit Siemens 1FK7034-5AK71-1DA0 Servomotor SN:YFB326653701001 -neuwertig-
Control unit Siemens 1FK7034-5AK71-1DA0 Servomotor SN:YFB326653701001 -neuwertig-
more images
Remscheid
1,078 km

Control unit
Siemens1FK7034-5AK71-1DA0 Servomotor SN:YFB326653701001 -neuwertig-

Certified Dealer
Call
Listing
Control unit Siemens 1HU3104-0AH01 - Z Perm.-Mag.-Motor SN: E6B61004703007 generalüberholt mit 12 Monaten Gewährleistung
Control unit Siemens 1HU3104-0AH01 - Z Perm.-Mag.-Motor SN: E6B61004703007 generalüberholt mit 12 Monaten Gewährleistung
Control unit Siemens 1HU3104-0AH01 - Z Perm.-Mag.-Motor SN: E6B61004703007 generalüberholt mit 12 Monaten Gewährleistung
Control unit Siemens 1HU3104-0AH01 - Z Perm.-Mag.-Motor SN: E6B61004703007 generalüberholt mit 12 Monaten Gewährleistung
more images
Remscheid
1,078 km

Control unit
Siemens1HU3104-0AH01 - Z Perm.-Mag.-Motor SN: E6B61004703007 generalüberholt mit 12 Monaten Gewährleistung

Certified Dealer
Call
Listing
Control unit Siemens 1FT6105-8AC71-4AB1 Synchron-Servomotor SN:EL287031009018
Control unit Siemens 1FT6105-8AC71-4AB1 Synchron-Servomotor SN:EL287031009018
Control unit Siemens 1FT6105-8AC71-4AB1 Synchron-Servomotor SN:EL287031009018
Control unit Siemens 1FT6105-8AC71-4AB1 Synchron-Servomotor SN:EL287031009018
more images
Remscheid
1,078 km

Control unit
Siemens1FT6105-8AC71-4AB1 Synchron-Servomotor SN:EL287031009018

Certified Dealer
Call
Listing
Control unit Siemens 1FT6082-1AH71-4AG1 Permanent-Magnet-Motor SN:EL187031101004
Control unit Siemens 1FT6082-1AH71-4AG1 Permanent-Magnet-Motor SN:EL187031101004
Control unit Siemens 1FT6082-1AH71-4AG1 Permanent-Magnet-Motor SN:EL187031101004
Control unit Siemens 1FT6082-1AH71-4AG1 Permanent-Magnet-Motor SN:EL187031101004
more images
Remscheid
1,078 km

Control unit
Siemens1FT6082-1AH71-4AG1 Permanent-Magnet-Motor SN:EL187031101004

Certified Dealer
Call
Listing
Control unit Bosch QUVF 100U / 4P-11 / 408 / 3703597-2 SN:1070916017 generalüberholt mit 12 Monaten Gewährleistung
Control unit Bosch QUVF 100U / 4P-11 / 408 / 3703597-2 SN:1070916017 generalüberholt mit 12 Monaten Gewährleistung
Control unit Bosch QUVF 100U / 4P-11 / 408 / 3703597-2 SN:1070916017 generalüberholt mit 12 Monaten Gewährleistung
Control unit Bosch QUVF 100U / 4P-11 / 408 / 3703597-2 SN:1070916017 generalüberholt mit 12 Monaten Gewährleistung
Control unit Bosch QUVF 100U / 4P-11 / 408 / 3703597-2 SN:1070916017 generalüberholt mit 12 Monaten Gewährleistung
more images
Remscheid
1,078 km

Control unit
BoschQUVF 100U / 4P-11 / 408 / 3703597-2 SN:1070916017 generalüberholt mit 12 Monaten Gewährleistung

Certified Dealer
Call
Listing
Control unit Siemens 1FK7032-2AK71-1QH0 Synchronmotor SN: YFCD38988201001
Control unit Siemens 1FK7032-2AK71-1QH0 Synchronmotor SN: YFCD38988201001
Control unit Siemens 1FK7032-2AK71-1QH0 Synchronmotor SN: YFCD38988201001
Control unit Siemens 1FK7032-2AK71-1QH0 Synchronmotor SN: YFCD38988201001
Control unit Siemens 1FK7032-2AK71-1QH0 Synchronmotor SN: YFCD38988201001
Control unit Siemens 1FK7032-2AK71-1QH0 Synchronmotor SN: YFCD38988201001
more images
Remscheid
1,078 km

Control unit
Siemens1FK7032-2AK71-1QH0 Synchronmotor SN: YFCD38988201001

Certified Dealer
Call
Listing
Component Indramat TDM 1.3-050-300-W1-000 Controller SN:245687-03354  !
Component Indramat TDM 1.3-050-300-W1-000 Controller SN:245687-03354  !
Component Indramat TDM 1.3-050-300-W1-000 Controller SN:245687-03354  !
Component Indramat TDM 1.3-050-300-W1-000 Controller SN:245687-03354  !
Component Indramat TDM 1.3-050-300-W1-000 Controller SN:245687-03354  !
more images
Remscheid
1,078 km

Component
IndramatTDM 1.3-050-300-W1-000 Controller SN:245687-03354 !

Certified Dealer
Call
Listing
Control unit Siemens 1FT7036-5AK71-1FG1 Synchronservomotor SN:YFXD18982801002
Control unit Siemens 1FT7036-5AK71-1FG1 Synchronservomotor SN:YFXD18982801002
Control unit Siemens 1FT7036-5AK71-1FG1 Synchronservomotor SN:YFXD18982801002
Control unit Siemens 1FT7036-5AK71-1FG1 Synchronservomotor SN:YFXD18982801002
Control unit Siemens 1FT7036-5AK71-1FG1 Synchronservomotor SN:YFXD18982801002
Control unit Siemens 1FT7036-5AK71-1FG1 Synchronservomotor SN:YFXD18982801002
more images
Remscheid
1,078 km

Control unit
Siemens1FT7036-5AK71-1FG1 Synchronservomotor SN:YFXD18982801002

Certified Dealer
Call
Listing
Control unit Siemens SIMOTICS 1FK7034-2AK71-1(R)H2 ohne Endcoder SN: YFH7627977401006
Control unit Siemens SIMOTICS 1FK7034-2AK71-1(R)H2 ohne Endcoder SN: YFH7627977401006
Control unit Siemens SIMOTICS 1FK7034-2AK71-1(R)H2 ohne Endcoder SN: YFH7627977401006
Control unit Siemens SIMOTICS 1FK7034-2AK71-1(R)H2 ohne Endcoder SN: YFH7627977401006
Control unit Siemens SIMOTICS 1FK7034-2AK71-1(R)H2 ohne Endcoder SN: YFH7627977401006
Control unit Siemens SIMOTICS 1FK7034-2AK71-1(R)H2 ohne Endcoder SN: YFH7627977401006
Control unit Siemens SIMOTICS 1FK7034-2AK71-1(R)H2 ohne Endcoder SN: YFH7627977401006
more images
Remscheid
1,078 km

Control unit
SiemensSIMOTICS 1FK7034-2AK71-1(R)H2 ohne Endcoder SN: YFH7627977401006

Certified Dealer
Call
Listing
Control unit Siemens SIMOTICS 1FK7034-2AK71-1RH2 Synchronmotor SN: YFH7627977401002
Control unit Siemens SIMOTICS 1FK7034-2AK71-1RH2 Synchronmotor SN: YFH7627977401002
Control unit Siemens SIMOTICS 1FK7034-2AK71-1RH2 Synchronmotor SN: YFH7627977401002
Control unit Siemens SIMOTICS 1FK7034-2AK71-1RH2 Synchronmotor SN: YFH7627977401002
Control unit Siemens SIMOTICS 1FK7034-2AK71-1RH2 Synchronmotor SN: YFH7627977401002
Control unit Siemens SIMOTICS 1FK7034-2AK71-1RH2 Synchronmotor SN: YFH7627977401002
Control unit Siemens SIMOTICS 1FK7034-2AK71-1RH2 Synchronmotor SN: YFH7627977401002
more images
Remscheid
1,078 km

Control unit
SiemensSIMOTICS 1FK7034-2AK71-1RH2 Synchronmotor SN: YFH7627977401002

Certified Dealer
Call
Auction
Press brake Safan CNCL-K 170 - 3100 TS1
Press brake Safan CNCL-K 170 - 3100 TS1
Press brake Safan CNCL-K 170 - 3100 TS1
Press brake Safan CNCL-K 170 - 3100 TS1
Press brake Safan CNCL-K 170 - 3100 TS1
Press brake Safan CNCL-K 170 - 3100 TS1
Press brake Safan CNCL-K 170 - 3100 TS1
Press brake Safan CNCL-K 170 - 3100 TS1
Press brake Safan CNCL-K 170 - 3100 TS1
Press brake Safan CNCL-K 170 - 3100 TS1
Press brake Safan CNCL-K 170 - 3100 TS1
Press brake Safan CNCL-K 170 - 3100 TS1
Press brake Safan CNCL-K 170 - 3100 TS1
Press brake Safan CNCL-K 170 - 3100 TS1
Press brake Safan CNCL-K 170 - 3100 TS1
Press brake Safan CNCL-K 170 - 3100 TS1
Press brake Safan CNCL-K 170 - 3100 TS1
Press brake Safan CNCL-K 170 - 3100 TS1
Press brake Safan CNCL-K 170 - 3100 TS1
Press brake Safan CNCL-K 170 - 3100 TS1
Press brake Safan CNCL-K 170 - 3100 TS1
Auction ended
Netherlands Netherlands
893 km

Press brake
SafanCNCL-K 170 - 3100 TS1

buyer-protection
Listing
Concrete mixer 9m3 stationaire betonmixer 100% elektrische aan... 4Rent
Concrete mixer 9m3 stationaire betonmixer 100% elektrische aan... 4Rent
Concrete mixer 9m3 stationaire betonmixer 100% elektrische aan... 4Rent
Concrete mixer 9m3 stationaire betonmixer 100% elektrische aan... 4Rent
Concrete mixer 9m3 stationaire betonmixer 100% elektrische aan... 4Rent
more images
Netherlands Linschoten
902 km

Concrete mixer
9m3 stationaire betonmixer 100% elektrische aan...4Rent

Call
Listing
OTC Pulse Low Spatter Welding Machine Used - OTC ARXIS P403L
OTC Pulse Low Spatter Welding Machine Used - OTC ARXIS P403L
OTC Pulse Low Spatter Welding Machine Used - OTC ARXIS P403L
OTC Pulse Low Spatter Welding Machine Used - OTC ARXIS P403L
OTC Pulse Low Spatter Welding Machine Used - OTC ARXIS P403L
OTC Pulse Low Spatter Welding Machine Used - OTC ARXIS P403L
more images
Netherlands Valkenswaard
958 km

OTC Pulse Low Spatter Welding Machine
Used - OTCARXIS P403L

Call
Listing
Сhiller / Heat pump Used Industrial Сhiller / Heat pump Daikin 77/87 kW | With warranty
Сhiller / Heat pump Used Industrial Сhiller / Heat pump Daikin 77/87 kW | With warranty
Сhiller / Heat pump Used Industrial Сhiller / Heat pump Daikin 77/87 kW | With warranty
Сhiller / Heat pump Used Industrial Сhiller / Heat pump Daikin 77/87 kW | With warranty
Сhiller / Heat pump Used Industrial Сhiller / Heat pump Daikin 77/87 kW | With warranty
Сhiller / Heat pump Used Industrial Сhiller / Heat pump Daikin 77/87 kW | With warranty
Сhiller / Heat pump Used Industrial Сhiller / Heat pump Daikin 77/87 kW | With warranty
Сhiller / Heat pump Used Industrial Сhiller / Heat pump Daikin 77/87 kW | With warranty
Сhiller / Heat pump Used Industrial Сhiller / Heat pump Daikin 77/87 kW | With warranty
Сhiller / Heat pump Used Industrial Сhiller / Heat pump Daikin 77/87 kW | With warranty
Сhiller / Heat pump Used Industrial Сhiller / Heat pump Daikin 77/87 kW | With warranty
Сhiller / Heat pump Used Industrial Сhiller / Heat pump Daikin 77/87 kW | With warranty
more images
Poland Łęczna
2,109 km

Сhiller / Heat pump
Used Industrial Сhiller / Heat pumpDaikin 77/87 kW | With warranty

Call
Listing
ORION SK40 Ø10-100 DIN 69871 AD/B tool holder Oprawka ORION SK40 Ø10-100 DIN 69871 AD/B Oprawka ORION SK40 Ø10-100 DIN 69871 AD/B
ORION SK40 Ø10-100 DIN 69871 AD/B tool holder Oprawka ORION SK40 Ø10-100 DIN 69871 AD/B Oprawka ORION SK40 Ø10-100 DIN 69871 AD/B
ORION SK40 Ø10-100 DIN 69871 AD/B tool holder Oprawka ORION SK40 Ø10-100 DIN 69871 AD/B Oprawka ORION SK40 Ø10-100 DIN 69871 AD/B
ORION SK40 Ø10-100 DIN 69871 AD/B tool holder Oprawka ORION SK40 Ø10-100 DIN 69871 AD/B Oprawka ORION SK40 Ø10-100 DIN 69871 AD/B
more images
Poland Wymysłów
1,785 km

ORION SK40 Ø10-100 DIN 69871 AD/B tool holder
Oprawka ORION SK40 Ø10-100 DIN 69871 AD/BOprawka ORION SK40 Ø10-100 DIN 69871 AD/B

Certified Dealer
Call
Listing
ORION SK40 Ø8-100 K toolholder DIN 69871 AD/B Oprawka ORION SK40 Ø8-100 K DIN 69871 AD/B Oprawka ORION SK40 Ø8-100 K DIN 69871 AD/B
ORION SK40 Ø8-100 K toolholder DIN 69871 AD/B Oprawka ORION SK40 Ø8-100 K DIN 69871 AD/B Oprawka ORION SK40 Ø8-100 K DIN 69871 AD/B
ORION SK40 Ø8-100 K toolholder DIN 69871 AD/B Oprawka ORION SK40 Ø8-100 K DIN 69871 AD/B Oprawka ORION SK40 Ø8-100 K DIN 69871 AD/B
ORION SK40 Ø8-100 K toolholder DIN 69871 AD/B Oprawka ORION SK40 Ø8-100 K DIN 69871 AD/B Oprawka ORION SK40 Ø8-100 K DIN 69871 AD/B
ORION SK40 Ø8-100 K toolholder DIN 69871 AD/B Oprawka ORION SK40 Ø8-100 K DIN 69871 AD/B Oprawka ORION SK40 Ø8-100 K DIN 69871 AD/B
more images
Poland Wymysłów
1,785 km

ORION SK40 Ø8-100 K toolholder DIN 69871 AD/B
Oprawka ORION SK40 Ø8-100 K DIN 69871 AD/BOprawka ORION SK40 Ø8-100 K DIN 69871 AD/B

Certified Dealer
Call
Siegel

Trust Seal

Dealers certified through Machineseeker

Trust Seal
Listing
GARANT SK40-6-100 tool holders • CNC Oprawki narzędziowe GARANT SK40-6-100 • CNC Oprawki narzędziowe GARANT SK40-6-100 • CNC
GARANT SK40-6-100 tool holders • CNC Oprawki narzędziowe GARANT SK40-6-100 • CNC Oprawki narzędziowe GARANT SK40-6-100 • CNC
GARANT SK40-6-100 tool holders • CNC Oprawki narzędziowe GARANT SK40-6-100 • CNC Oprawki narzędziowe GARANT SK40-6-100 • CNC
GARANT SK40-6-100 tool holders • CNC Oprawki narzędziowe GARANT SK40-6-100 • CNC Oprawki narzędziowe GARANT SK40-6-100 • CNC
GARANT SK40-6-100 tool holders • CNC Oprawki narzędziowe GARANT SK40-6-100 • CNC Oprawki narzędziowe GARANT SK40-6-100 • CNC
GARANT SK40-6-100 tool holders • CNC Oprawki narzędziowe GARANT SK40-6-100 • CNC Oprawki narzędziowe GARANT SK40-6-100 • CNC
more images
Poland Wymysłów
1,785 km

GARANT SK40-6-100 tool holders • CNC
Oprawki narzędziowe GARANT SK40-6-100 • CNCOprawki narzędziowe GARANT SK40-6-100 • CNC

Certified Dealer
Call
Listing
Digital Micrometer Mahr Micromar 40 EWR(i) 100–125 mm IP65 Cyfrowy mikrometr Mahr Micromar 40 EWR(i) 100–125 mm IP65 Cyfrowy mikrometr Mahr Micromar 40 EWR(i) 100–125 mm IP65
Digital Micrometer Mahr Micromar 40 EWR(i) 100–125 mm IP65 Cyfrowy mikrometr Mahr Micromar 40 EWR(i) 100–125 mm IP65 Cyfrowy mikrometr Mahr Micromar 40 EWR(i) 100–125 mm IP65
Digital Micrometer Mahr Micromar 40 EWR(i) 100–125 mm IP65 Cyfrowy mikrometr Mahr Micromar 40 EWR(i) 100–125 mm IP65 Cyfrowy mikrometr Mahr Micromar 40 EWR(i) 100–125 mm IP65
Digital Micrometer Mahr Micromar 40 EWR(i) 100–125 mm IP65 Cyfrowy mikrometr Mahr Micromar 40 EWR(i) 100–125 mm IP65 Cyfrowy mikrometr Mahr Micromar 40 EWR(i) 100–125 mm IP65
Digital Micrometer Mahr Micromar 40 EWR(i) 100–125 mm IP65 Cyfrowy mikrometr Mahr Micromar 40 EWR(i) 100–125 mm IP65 Cyfrowy mikrometr Mahr Micromar 40 EWR(i) 100–125 mm IP65
Digital Micrometer Mahr Micromar 40 EWR(i) 100–125 mm IP65 Cyfrowy mikrometr Mahr Micromar 40 EWR(i) 100–125 mm IP65 Cyfrowy mikrometr Mahr Micromar 40 EWR(i) 100–125 mm IP65
Digital Micrometer Mahr Micromar 40 EWR(i) 100–125 mm IP65 Cyfrowy mikrometr Mahr Micromar 40 EWR(i) 100–125 mm IP65 Cyfrowy mikrometr Mahr Micromar 40 EWR(i) 100–125 mm IP65
more images
Poland Wymysłów
1,785 km

Digital Micrometer Mahr Micromar 40 EWR(i) 100–125 mm IP65
Cyfrowy mikrometr Mahr Micromar 40 EWR(i) 100–125 mm IP65Cyfrowy mikrometr Mahr Micromar 40 EWR(i) 100–125 mm IP65

Certified Dealer
Call
Listing
Compressor Aircraft Airboy Silence 116 OF E
Compressor Aircraft Airboy Silence 116 OF E
Compressor Aircraft Airboy Silence 116 OF E
Compressor Aircraft Airboy Silence 116 OF E
more images
Germany Germany
1,228 km

Compressor
AircraftAirboy Silence 116 OF E

Certified Dealer
Call
Listing
Wraparound heat-shinkable CANUSA -CPS MIS 65 / MIS 100 MIS 100
Wraparound heat-shinkable CANUSA -CPS MIS 65 / MIS 100 MIS 100
Wraparound heat-shinkable CANUSA -CPS MIS 65 / MIS 100 MIS 100
Wraparound heat-shinkable CANUSA -CPS MIS 65 / MIS 100 MIS 100
Wraparound heat-shinkable CANUSA -CPS MIS 65 / MIS 100 MIS 100
Wraparound heat-shinkable CANUSA -CPS MIS 65 / MIS 100 MIS 100
Wraparound heat-shinkable CANUSA -CPS MIS 65 / MIS 100 MIS 100
Wraparound heat-shinkable CANUSA -CPS MIS 65 / MIS 100 MIS 100
more images
Germany Lingen (Ems)
1,044 km

Wraparound heat-shinkable
CANUSA -CPS MIS 65 / MIS 100MIS 100

Call

This may be of interest to you

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

Machineseeker sample sales contract

Sample sales contract for used machines in nine languages

Extension Sponsor European Championship

Machineseeker agrees three-year extension as European Championship sponsor

Tricks for buying used machines

10 valuable tricks for buying used machines online