Used Protec 3 Achs Welding Turn Table High Adjustable for sale (97,713)

  • 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 turntable,Positioner,Turntable ESAB PEMA 3 Axis Pema 3500 high adjustable
Welding turntable,Positioner,Turntable ESAB PEMA 3 Axis Pema 3500 high adjustable
Welding turntable,Positioner,Turntable ESAB PEMA 3 Axis Pema 3500 high adjustable
Welding turntable,Positioner,Turntable ESAB PEMA 3 Axis Pema 3500 high adjustable
Welding turntable,Positioner,Turntable ESAB PEMA 3 Axis Pema 3500 high adjustable
more images
Germany Hergensweiler
18,638 km

Welding turntable,Positioner,Turntable
ESAB PEMA 3 AxisPema 3500 high adjustable

Certified Dealer
Call
Listing
Welding turntable,Turntable,Positioner ESAB  Pema 3 Achs TAP 1, 1000 Kg
Welding turntable,Turntable,Positioner ESAB  Pema 3 Achs TAP 1, 1000 Kg
Welding turntable,Turntable,Positioner ESAB  Pema 3 Achs TAP 1, 1000 Kg
Welding turntable,Turntable,Positioner ESAB  Pema 3 Achs TAP 1, 1000 Kg
Welding turntable,Turntable,Positioner ESAB  Pema 3 Achs TAP 1, 1000 Kg
Welding turntable,Turntable,Positioner ESAB  Pema 3 Achs TAP 1, 1000 Kg
Welding turntable,Turntable,Positioner ESAB  Pema 3 Achs TAP 1, 1000 Kg
Welding turntable,Turntable,Positioner ESAB  Pema 3 Achs TAP 1, 1000 Kg
Welding turntable,Turntable,Positioner ESAB  Pema 3 Achs TAP 1, 1000 Kg
Welding turntable,Turntable,Positioner ESAB  Pema 3 Achs TAP 1, 1000 Kg
Welding turntable,Turntable,Positioner ESAB  Pema 3 Achs TAP 1, 1000 Kg
Welding turntable,Turntable,Positioner ESAB  Pema 3 Achs TAP 1, 1000 Kg
more images
Germany Hergensweiler
18,638 km

Welding turntable,Turntable,Positioner
ESAB Pema 3 AchsTAP 1, 1000 Kg

Certified Dealer
Call
Listing
Welding turntable,Turntable,Positioner ESAB 7 To    3 Achs APS 7000 Kg
Welding turntable,Turntable,Positioner ESAB 7 To    3 Achs APS 7000 Kg
Welding turntable,Turntable,Positioner ESAB 7 To    3 Achs APS 7000 Kg
Welding turntable,Turntable,Positioner ESAB 7 To    3 Achs APS 7000 Kg
Welding turntable,Turntable,Positioner ESAB 7 To    3 Achs APS 7000 Kg
Welding turntable,Turntable,Positioner ESAB 7 To    3 Achs APS 7000 Kg
Welding turntable,Turntable,Positioner ESAB 7 To    3 Achs APS 7000 Kg
Welding turntable,Turntable,Positioner ESAB 7 To    3 Achs APS 7000 Kg
Welding turntable,Turntable,Positioner ESAB 7 To    3 Achs APS 7000 Kg
Welding turntable,Turntable,Positioner ESAB 7 To    3 Achs APS 7000 Kg
Welding turntable,Turntable,Positioner ESAB 7 To    3 Achs APS 7000 Kg
Welding turntable,Turntable,Positioner ESAB 7 To    3 Achs APS 7000 Kg
Welding turntable,Turntable,Positioner ESAB 7 To    3 Achs APS 7000 Kg
Welding turntable,Turntable,Positioner ESAB 7 To    3 Achs APS 7000 Kg
Welding turntable,Turntable,Positioner ESAB 7 To    3 Achs APS 7000 Kg
more images
Germany Hergensweiler
18,638 km

Welding turntable,Turntable,Positioner
ESAB 7 To 3 AchsAPS 7000 Kg

Certified Dealer
Call
Listing
Demmeler 3D welding table 2400 x 1200 mm DEMMELER 3D welding table 2400 x 1200 mm
Demmeler 3D welding table 2400 x 1200 mm DEMMELER 3D welding table 2400 x 1200 mm
Demmeler 3D welding table 2400 x 1200 mm DEMMELER 3D welding table 2400 x 1200 mm
Demmeler 3D welding table 2400 x 1200 mm DEMMELER 3D welding table 2400 x 1200 mm
Demmeler 3D welding table 2400 x 1200 mm DEMMELER 3D welding table 2400 x 1200 mm
Demmeler 3D welding table 2400 x 1200 mm DEMMELER 3D welding table 2400 x 1200 mm
Demmeler 3D welding table 2400 x 1200 mm DEMMELER 3D welding table 2400 x 1200 mm
Demmeler 3D welding table 2400 x 1200 mm DEMMELER 3D welding table 2400 x 1200 mm
Demmeler 3D welding table 2400 x 1200 mm DEMMELER 3D welding table 2400 x 1200 mm
more images
Estonia Narva
16,951 km

Demmeler 3D welding table 2400 x 1200 mm
DEMMELER3D welding table 2400 x 1200 mm

Call
Listing
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 2000
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 2000
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 2000
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 2000
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 2000
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 2000
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 2000
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 2000
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 2000
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 2000
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 2000
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 2000
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 2000
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 2000
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 2000
more images
Germany Hergensweiler
18,638 km

Welding turntable, turning device
Protec SäulenhubdrehvorrichtungSHD 2000

Certified Dealer
Call
Listing
Motorized welding turntable and tilting table GCB ZHBJ 06
Motorized welding turntable and tilting table GCB ZHBJ 06
Motorized welding turntable and tilting table GCB ZHBJ 06
Motorized welding turntable and tilting table GCB ZHBJ 06
Motorized welding turntable and tilting table GCB ZHBJ 06
Motorized welding turntable and tilting table GCB ZHBJ 06
more images
Germany Rödermark
18,557 km

Motorized welding turntable and tilting table
GCBZHBJ 06

Call
Listing
Welding turn table Protec W 10 Ton
Welding turn table Protec W 10 Ton
Welding turn table Protec W 10 Ton
more images
Germany Hergensweiler
18,638 km

Welding turn table
ProtecW 10 Ton

Certified Dealer
Call
Listing
Hydraulic welding turn and tilt table ESAB-PEMA 750 AHM
Hydraulic welding turn and tilt table ESAB-PEMA 750 AHM
Hydraulic welding turn and tilt table ESAB-PEMA 750 AHM
Hydraulic welding turn and tilt table ESAB-PEMA 750 AHM
Hydraulic welding turn and tilt table ESAB-PEMA 750 AHM
Hydraulic welding turn and tilt table ESAB-PEMA 750 AHM
Hydraulic welding turn and tilt table ESAB-PEMA 750 AHM
Hydraulic welding turn and tilt table ESAB-PEMA 750 AHM
Hydraulic welding turn and tilt table ESAB-PEMA 750 AHM
more images
Germany Rödermark
18,557 km

Hydraulic welding turn and tilt table
ESAB-PEMA750 AHM

Call
Listing
Welding table Protec,Hywema,Sideros SHD 2000 F
Welding table Protec,Hywema,Sideros SHD 2000 F
Welding table Protec,Hywema,Sideros SHD 2000 F
Welding table Protec,Hywema,Sideros SHD 2000 F
Welding table Protec,Hywema,Sideros SHD 2000 F
Welding table Protec,Hywema,Sideros SHD 2000 F
Welding table Protec,Hywema,Sideros SHD 2000 F
Welding table Protec,Hywema,Sideros SHD 2000 F
Welding table Protec,Hywema,Sideros SHD 2000 F
Welding table Protec,Hywema,Sideros SHD 2000 F
Welding table Protec,Hywema,Sideros SHD 2000 F
Welding table Protec,Hywema,Sideros SHD 2000 F
Welding table Protec,Hywema,Sideros SHD 2000 F
more images
Germany Hergensweiler
18,638 km

Welding table
Protec,Hywema,SiderosSHD 2000 F

Certified Dealer
Call
Listing
Welding turntable, container turning device Protec 10 Tonnen, Rollenbock RB 10 000
Welding turntable, container turning device Protec 10 Tonnen, Rollenbock RB 10 000
Welding turntable, container turning device Protec 10 Tonnen, Rollenbock RB 10 000
Welding turntable, container turning device Protec 10 Tonnen, Rollenbock RB 10 000
Welding turntable, container turning device Protec 10 Tonnen, Rollenbock RB 10 000
Welding turntable, container turning device Protec 10 Tonnen, Rollenbock RB 10 000
Welding turntable, container turning device Protec 10 Tonnen, Rollenbock RB 10 000
Welding turntable, container turning device Protec 10 Tonnen, Rollenbock RB 10 000
Welding turntable, container turning device Protec 10 Tonnen, Rollenbock RB 10 000
Welding turntable, container turning device Protec 10 Tonnen, Rollenbock RB 10 000
more images
Germany Hergensweiler
18,638 km

Welding turntable, container turning device
Protec 10 Tonnen, RollenbockRB 10 000

Certified Dealer
Call
Listing
Welding set HW 3 in 1 Welding cleaning Cutting with 2kw Max laser power
Welding set HW 3 in 1 Welding cleaning Cutting with 2kw Max laser power
Welding set HW 3 in 1 Welding cleaning Cutting with 2kw Max laser power
Welding set HW 3 in 1 Welding cleaning Cutting with 2kw Max laser power
Welding set HW 3 in 1 Welding cleaning Cutting with 2kw Max laser power
Welding set HW 3 in 1 Welding cleaning Cutting with 2kw Max laser power
more images
Netherlands Coevorden
18,451 km

Welding set
HW 3 in 1 Welding cleaning Cuttingwith 2kw Max laser power

Call
Listing
Welding turn table Mecome KT 6000 Kg
Welding turn table Mecome KT 6000 Kg
Welding turn table Mecome KT 6000 Kg
Welding turn table Mecome KT 6000 Kg
Welding turn table Mecome KT 6000 Kg
Welding turn table Mecome KT 6000 Kg
Welding turn table Mecome KT 6000 Kg
Welding turn table Mecome KT 6000 Kg
Welding turn table Mecome KT 6000 Kg
more images
Germany Hergensweiler
18,638 km

Welding turn table
MecomeKT 6000 Kg

Certified Dealer
Call
Listing
Welding turntable, turntable, welding table Protec,Demmeler,Siegmund M1500
Welding turntable, turntable, welding table Protec,Demmeler,Siegmund M1500
Welding turntable, turntable, welding table Protec,Demmeler,Siegmund M1500
Welding turntable, turntable, welding table Protec,Demmeler,Siegmund M1500
Welding turntable, turntable, welding table Protec,Demmeler,Siegmund M1500
Welding turntable, turntable, welding table Protec,Demmeler,Siegmund M1500
Welding turntable, turntable, welding table Protec,Demmeler,Siegmund M1500
Welding turntable, turntable, welding table Protec,Demmeler,Siegmund M1500
Welding turntable, turntable, welding table Protec,Demmeler,Siegmund M1500
Welding turntable, turntable, welding table Protec,Demmeler,Siegmund M1500
Welding turntable, turntable, welding table Protec,Demmeler,Siegmund M1500
Welding turntable, turntable, welding table Protec,Demmeler,Siegmund M1500
Welding turntable, turntable, welding table Protec,Demmeler,Siegmund M1500
Welding turntable, turntable, welding table Protec,Demmeler,Siegmund M1500
Welding turntable, turntable, welding table Protec,Demmeler,Siegmund M1500
Welding turntable, turntable, welding table Protec,Demmeler,Siegmund M1500
Welding turntable, turntable, welding table Protec,Demmeler,Siegmund M1500
Welding turntable, turntable, welding table Protec,Demmeler,Siegmund M1500
more images
Germany Hergensweiler
18,638 km

Welding turntable, turntable, welding table
Protec,Demmeler,SiegmundM1500

Certified Dealer
Call
Listing
Welding turn and tilt table 5000 kg KOIKE HD  100 VF
Welding turn and tilt table 5000 kg KOIKE HD  100 VF
Welding turn and tilt table 5000 kg KOIKE HD  100 VF
Welding turn and tilt table 5000 kg KOIKE HD  100 VF
Welding turn and tilt table 5000 kg KOIKE HD  100 VF
Welding turn and tilt table 5000 kg KOIKE HD  100 VF
Welding turn and tilt table 5000 kg KOIKE HD  100 VF
more images
Netherlands Babberich
18,541 km

Welding turn and tilt table 5000 kg
KOIKEHD 100 VF

Certified Dealer
Call
Listing
Welding turntable,Turntable,Positioner Protec  3 To KT 3000 Z2
Welding turntable,Turntable,Positioner Protec  3 To KT 3000 Z2
Welding turntable,Turntable,Positioner Protec  3 To KT 3000 Z2
Welding turntable,Turntable,Positioner Protec  3 To KT 3000 Z2
Welding turntable,Turntable,Positioner Protec  3 To KT 3000 Z2
Welding turntable,Turntable,Positioner Protec  3 To KT 3000 Z2
Welding turntable,Turntable,Positioner Protec  3 To KT 3000 Z2
Welding turntable,Turntable,Positioner Protec  3 To KT 3000 Z2
Welding turntable,Turntable,Positioner Protec  3 To KT 3000 Z2
Welding turntable,Turntable,Positioner Protec  3 To KT 3000 Z2
Welding turntable,Turntable,Positioner Protec  3 To KT 3000 Z2
Welding turntable,Turntable,Positioner Protec  3 To KT 3000 Z2
Welding turntable,Turntable,Positioner Protec  3 To KT 3000 Z2
more images
Germany Hergensweiler
18,638 km

Welding turntable,Turntable,Positioner
Protec 3 ToKT 3000 Z2

Certified Dealer
Call
Listing
Hydraulic high-lift table thread tapping machine CMA LCN-M 8
Hydraulic high-lift table thread tapping machine CMA LCN-M 8
Hydraulic high-lift table thread tapping machine CMA LCN-M 8
Hydraulic high-lift table thread tapping machine CMA LCN-M 8
Hydraulic high-lift table thread tapping machine CMA LCN-M 8
Hydraulic high-lift table thread tapping machine CMA LCN-M 8
Hydraulic high-lift table thread tapping machine CMA LCN-M 8
more images
Germany Rödermark
18,557 km

Hydraulic high-lift table thread tapping machine
CMALCN-M 8

Call
Listing
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 500
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 500
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 500
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 500
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 500
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 500
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 500
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 500
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 500
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 500
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 500
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 500
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 500
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 500
Welding turntable, turning device Protec Säulenhubdrehvorrichtung SHD 500
more images
Germany Hergensweiler
18,638 km

Welding turntable, turning device
Protec SäulenhubdrehvorrichtungSHD 500

Certified Dealer
Call
Listing
Trumpf laser with Motoman robot ITEC Automation & Laser Ag 3-Achs Laser Trumpf- Motomann -Coil
Trumpf laser with Motoman robot ITEC Automation & Laser Ag 3-Achs Laser Trumpf- Motomann -Coil
Trumpf laser with Motoman robot ITEC Automation & Laser Ag 3-Achs Laser Trumpf- Motomann -Coil
Trumpf laser with Motoman robot ITEC Automation & Laser Ag 3-Achs Laser Trumpf- Motomann -Coil
Trumpf laser with Motoman robot ITEC Automation & Laser Ag 3-Achs Laser Trumpf- Motomann -Coil
Trumpf laser with Motoman robot ITEC Automation & Laser Ag 3-Achs Laser Trumpf- Motomann -Coil
Trumpf laser with Motoman robot ITEC Automation & Laser Ag 3-Achs Laser Trumpf- Motomann -Coil
Trumpf laser with Motoman robot ITEC Automation & Laser Ag 3-Achs Laser Trumpf- Motomann -Coil
Trumpf laser with Motoman robot ITEC Automation & Laser Ag 3-Achs Laser Trumpf- Motomann -Coil
Trumpf laser with Motoman robot ITEC Automation & Laser Ag 3-Achs Laser Trumpf- Motomann -Coil
Trumpf laser with Motoman robot ITEC Automation & Laser Ag 3-Achs Laser Trumpf- Motomann -Coil
more images
Germany Gießen
18,524 km

Trumpf laser with Motoman robot
ITEC Automation & Laser Ag3-Achs Laser Trumpf- Motomann -Coil

Certified Dealer
Call
Listing
Welding turntable, container turning device Protec RB 30 000 SZ RB 30 Ton SZ
Welding turntable, container turning device Protec RB 30 000 SZ RB 30 Ton SZ
Welding turntable, container turning device Protec RB 30 000 SZ RB 30 Ton SZ
Welding turntable, container turning device Protec RB 30 000 SZ RB 30 Ton SZ
Welding turntable, container turning device Protec RB 30 000 SZ RB 30 Ton SZ
Welding turntable, container turning device Protec RB 30 000 SZ RB 30 Ton SZ
Welding turntable, container turning device Protec RB 30 000 SZ RB 30 Ton SZ
Welding turntable, container turning device Protec RB 30 000 SZ RB 30 Ton SZ
Welding turntable, container turning device Protec RB 30 000 SZ RB 30 Ton SZ
Welding turntable, container turning device Protec RB 30 000 SZ RB 30 Ton SZ
more images
Germany Hergensweiler
18,638 km

Welding turntable, container turning device
Protec RB 30 000 SZRB 30 Ton SZ

Certified Dealer
Call
Listing
Welding turning and tipping-positioning table LAMBERT - JOUTY CLI - FO 1
Welding turning and tipping-positioning table LAMBERT - JOUTY CLI - FO 1
Welding turning and tipping-positioning table LAMBERT - JOUTY CLI - FO 1
Welding turning and tipping-positioning table LAMBERT - JOUTY CLI - FO 1
more images
Germany Rödermark
18,556 km

Welding turning and tipping-positioning table
LAMBERT - JOUTYCLI - FO 1

Call
Listing
Motorized welding turntable and tilting table HEINRICHSGLÜCK H 36
Motorized welding turntable and tilting table HEINRICHSGLÜCK H 36
Motorized welding turntable and tilting table HEINRICHSGLÜCK H 36
Motorized welding turntable and tilting table HEINRICHSGLÜCK H 36
more images
Germany Rödermark
18,557 km

Motorized welding turntable and tilting table
HEINRICHSGLÜCKH 36

Call
Siegel

Trust Seal

Dealers certified through Machineseeker

Trust Seal
Listing
Sliding table saw Altendorf F45 3 Achs
Sliding table saw Altendorf F45 3 Achs
Sliding table saw Altendorf F45 3 Achs
Sliding table saw Altendorf F45 3 Achs
Sliding table saw Altendorf F45 3 Achs
Sliding table saw Altendorf F45 3 Achs
more images
Germany Egenhofen
18,514 km

Sliding table saw
AltendorfF45 3 Achs

Certified Dealer
Call
Listing
Motorized welding turntable and tilting table VEB-HALLE MAH 5000
Motorized welding turntable and tilting table VEB-HALLE MAH 5000
Motorized welding turntable and tilting table VEB-HALLE MAH 5000
Motorized welding turntable and tilting table VEB-HALLE MAH 5000
Motorized welding turntable and tilting table VEB-HALLE MAH 5000
Motorized welding turntable and tilting table VEB-HALLE MAH 5000
Motorized welding turntable and tilting table VEB-HALLE MAH 5000
Motorized welding turntable and tilting table VEB-HALLE MAH 5000
Motorized welding turntable and tilting table VEB-HALLE MAH 5000
Motorized welding turntable and tilting table VEB-HALLE MAH 5000
Motorized welding turntable and tilting table VEB-HALLE MAH 5000
Motorized welding turntable and tilting table VEB-HALLE MAH 5000
more images
Germany Rödermark
18,557 km

Motorized welding turntable and tilting table
VEB-HALLEMAH 5000

Call
Listing
Welding table Protec 3 Achs KT 1000 HV
Welding table Protec 3 Achs KT 1000 HV
Welding table Protec 3 Achs KT 1000 HV
Welding table Protec 3 Achs KT 1000 HV
Welding table Protec 3 Achs KT 1000 HV
Welding table Protec 3 Achs KT 1000 HV
Welding table Protec 3 Achs KT 1000 HV
Welding table Protec 3 Achs KT 1000 HV
Welding table Protec 3 Achs KT 1000 HV
Welding table Protec 3 Achs KT 1000 HV
Welding table Protec 3 Achs KT 1000 HV
Welding table Protec 3 Achs KT 1000 HV
Welding table Protec 3 Achs KT 1000 HV
Welding table Protec 3 Achs KT 1000 HV
Welding table Protec 3 Achs KT 1000 HV
more images
Germany Hergensweiler
18,638 km

Welding table
Protec 3 AchsKT 1000 HV

Certified Dealer
Call
Listing
Rotary Welding Table MORELISSE APS 300
Rotary Welding Table MORELISSE APS 300
Rotary Welding Table MORELISSE APS 300
Rotary Welding Table MORELISSE APS 300
Rotary Welding Table MORELISSE APS 300
Rotary Welding Table MORELISSE APS 300
Rotary Welding Table MORELISSE APS 300
Rotary Welding Table MORELISSE APS 300
Rotary Welding Table MORELISSE APS 300
more images
Germany Velen
18,508 km

Rotary Welding Table
MORELISSEAPS 300

Call

This may be of interest to you

Machineseeker Auctions

Sales with maximum attention: Selected auction highlights

Machineseeker sample sales contract

Sample sales contract for used machines in nine languages

Machineseeker Group Aquire Gebrauchtmaschinen.de Used-machines.com

Machineseeker Group acquires the platforms used-machines.com and Gebrauchtmaschinen.de

Biggest excavator

Photo gallery: The World's 10 biggest excavators

Michael Manousakis Morlock Motors

Morlock Motors official partner of Machineseeker and Truckscout24

Tricks for buying used machines

10 valuable tricks for buying used machines online