Used Chamfering And Centering Machine for sale (73,084)

  • 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
Clickout
2014 NAKAMURA TOME Super NTMX 5-Axis CNC Machining Center Nakamura-Tome Super NTMX
2014 NAKAMURA TOME Super NTMX 5-Axis CNC Machining Center Nakamura-Tome Super NTMX
2014 NAKAMURA TOME Super NTMX 5-Axis CNC Machining Center Nakamura-Tome Super NTMX
2014 NAKAMURA TOME Super NTMX 5-Axis CNC Machining Center Nakamura-Tome Super NTMX
2014 NAKAMURA TOME Super NTMX 5-Axis CNC Machining Center Nakamura-Tome Super NTMX
2014 NAKAMURA TOME Super NTMX 5-Axis CNC Machining Center Nakamura-Tome Super NTMX
2014 NAKAMURA TOME Super NTMX 5-Axis CNC Machining Center Nakamura-Tome Super NTMX
2014 NAKAMURA TOME Super NTMX 5-Axis CNC Machining Center Nakamura-Tome Super NTMX
2014 NAKAMURA TOME Super NTMX 5-Axis CNC Machining Center Nakamura-Tome Super NTMX
2014 NAKAMURA TOME Super NTMX 5-Axis CNC Machining Center Nakamura-Tome Super NTMX
2014 NAKAMURA TOME Super NTMX 5-Axis CNC Machining Center Nakamura-Tome Super NTMX
2014 NAKAMURA TOME Super NTMX 5-Axis CNC Machining Center Nakamura-Tome Super NTMX
2014 NAKAMURA TOME Super NTMX 5-Axis CNC Machining Center Nakamura-Tome Super NTMX
2014 NAKAMURA TOME Super NTMX 5-Axis CNC Machining Center Nakamura-Tome Super NTMX
2014 NAKAMURA TOME Super NTMX 5-Axis CNC Machining Center Nakamura-Tome Super NTMX
France Le Plessis-Pâté
911 km

2014 NAKAMURA TOME Super NTMX 5-Axis CNC Machining Center
Nakamura-TomeSuper NTMX

Listing
Vertical machining center DMG DMC 1035 V
Vertical machining center DMG DMC 1035 V
Vertical machining center DMG DMC 1035 V
Vertical machining center DMG DMC 1035 V
Vertical machining center DMG DMC 1035 V
Vertical machining center DMG DMC 1035 V
Vertical machining center DMG DMC 1035 V
more images
Germany Hagen
1,097 km

Vertical machining center
DMGDMC 1035 V

Certified Dealer
Call
Listing
Machining Center - Vertical MATSUURA MC 760 VX
Machining Center - Vertical MATSUURA MC 760 VX
Machining Center - Vertical MATSUURA MC 760 VX
more images
Germany Schwerte
1,093 km

Machining Center - Vertical
MATSUURAMC 760 VX

Certified Dealer
Call
Listing
Machining center BIESSE ROVER A 1359 ATS
Machining center BIESSE ROVER A 1359 ATS
Machining center BIESSE ROVER A 1359 ATS
Machining center BIESSE ROVER A 1359 ATS
Machining center BIESSE ROVER A 1359 ATS
Machining center BIESSE ROVER A 1359 ATS
Machining center BIESSE ROVER A 1359 ATS
Machining center BIESSE ROVER A 1359 ATS
Machining center BIESSE ROVER A 1359 ATS
Machining center BIESSE ROVER A 1359 ATS
Machining center BIESSE ROVER A 1359 ATS
Machining center BIESSE ROVER A 1359 ATS
Machining center BIESSE ROVER A 1359 ATS
Machining center BIESSE ROVER A 1359 ATS
Machining center BIESSE ROVER A 1359 ATS
Machining center BIESSE ROVER A 1359 ATS
Machining center BIESSE ROVER A 1359 ATS
Machining center BIESSE ROVER A 1359 ATS
more images
Germany Detmold
1,162 km

Machining center
BIESSEROVER A 1359 ATS

Call
Listing
Machining Center - Horizontal HELLER MCT160
Machining Center - Horizontal HELLER MCT160
Machining Center - Horizontal HELLER MCT160
Machining Center - Horizontal HELLER MCT160
Machining Center - Horizontal HELLER MCT160
Machining Center - Horizontal HELLER MCT160
Machining Center - Horizontal HELLER MCT160
Machining Center - Horizontal HELLER MCT160
Machining Center - Horizontal HELLER MCT160
Machining Center - Horizontal HELLER MCT160
Machining Center - Horizontal HELLER MCT160
Machining Center - Horizontal HELLER MCT160
Machining Center - Horizontal HELLER MCT160
Machining Center - Horizontal HELLER MCT160
Machining Center - Horizontal HELLER MCT160
Machining Center - Horizontal HELLER MCT160
Machining Center - Horizontal HELLER MCT160
Machining Center - Horizontal HELLER MCT160
Machining Center - Horizontal HELLER MCT160
Machining Center - Horizontal HELLER MCT160
Machining Center - Horizontal HELLER MCT160
more images
Germany Germany
1,199 km

Machining Center - Horizontal
HELLERMCT160

Certified Dealer
Call
Listing
Universal machining center MTRent MTcut V60D
Universal machining center MTRent MTcut V60D
Universal machining center MTRent MTcut V60D
Universal machining center MTRent MTcut V60D
Universal machining center MTRent MTcut V60D
Universal machining center MTRent MTcut V60D
Universal machining center MTRent MTcut V60D
Universal machining center MTRent MTcut V60D
Universal machining center MTRent MTcut V60D
Universal machining center MTRent MTcut V60D
Universal machining center MTRent MTcut V60D
Universal machining center MTRent MTcut V60D
Universal machining center MTRent MTcut V60D
Universal machining center MTRent MTcut V60D
Universal machining center MTRent MTcut V60D
Universal machining center MTRent MTcut V60D
Universal machining center MTRent MTcut V60D
Universal machining center MTRent MTcut V60D
Universal machining center MTRent MTcut V60D
Universal machining center MTRent MTcut V60D
more images
Germany Gießen
1,197 km

Universal machining center
MTRentMTcut V60D

Certified Dealer
Call
Listing
Universal machining center MTRent MTcut v60
Universal machining center MTRent MTcut v60
Universal machining center MTRent MTcut v60
Universal machining center MTRent MTcut v60
Universal machining center MTRent MTcut v60
Universal machining center MTRent MTcut v60
Universal machining center MTRent MTcut v60
Universal machining center MTRent MTcut v60
Universal machining center MTRent MTcut v60
Universal machining center MTRent MTcut v60
Universal machining center MTRent MTcut v60
Universal machining center MTRent MTcut v60
Universal machining center MTRent MTcut v60
Universal machining center MTRent MTcut v60
Universal machining center MTRent MTcut v60
more images
Germany Gießen
1,197 km

Universal machining center
MTRentMTcut v60

Certified Dealer
Call
Clickout
Vertical machining center Spinner VC750
Vertical machining center Spinner VC750
Vertical machining center Spinner VC750
Vertical machining center Spinner VC750
Germany Iserlohn
1,098 km

Vertical machining center
SpinnerVC750

Certified Dealer
Listing
Vertical machining center Mazak Nexus VCN-410A
Vertical machining center Mazak Nexus VCN-410A
Vertical machining center Mazak Nexus VCN-410A
Vertical machining center Mazak Nexus VCN-410A
Vertical machining center Mazak Nexus VCN-410A
Vertical machining center Mazak Nexus VCN-410A
Vertical machining center Mazak Nexus VCN-410A
Vertical machining center Mazak Nexus VCN-410A
Vertical machining center Mazak Nexus VCN-410A
Vertical machining center Mazak Nexus VCN-410A
Vertical machining center Mazak Nexus VCN-410A
Vertical machining center Mazak Nexus VCN-410A
Vertical machining center Mazak Nexus VCN-410A
Vertical machining center Mazak Nexus VCN-410A
Vertical machining center Mazak Nexus VCN-410A
Vertical machining center Mazak Nexus VCN-410A
more images
Switzerland Bienne
1,301 km

Vertical machining center
MazakNexus VCN-410A

Certified Dealer
Call
Listing
5-axis machining center KERN HSPC
5-axis machining center KERN HSPC
5-axis machining center KERN HSPC
5-axis machining center KERN HSPC
5-axis machining center KERN HSPC
5-axis machining center KERN HSPC
5-axis machining center KERN HSPC
5-axis machining center KERN HSPC
5-axis machining center KERN HSPC
5-axis machining center KERN HSPC
5-axis machining center KERN HSPC
more images
Brügg
1,303 km

5-axis machining center
KERNHSPC

Certified Dealer
Call
Listing
5-axis machining center DMG HSC 55 linear
5-axis machining center DMG HSC 55 linear
5-axis machining center DMG HSC 55 linear
5-axis machining center DMG HSC 55 linear
5-axis machining center DMG HSC 55 linear
5-axis machining center DMG HSC 55 linear
5-axis machining center DMG HSC 55 linear
5-axis machining center DMG HSC 55 linear
5-axis machining center DMG HSC 55 linear
5-axis machining center DMG HSC 55 linear
5-axis machining center DMG HSC 55 linear
more images
Brügg
1,303 km

5-axis machining center
DMGHSC 55 linear

Certified Dealer
Call
Listing
5-axis machining center HEDELIUS RS 60 MAGNUM-2000
5-axis machining center HEDELIUS RS 60 MAGNUM-2000
5-axis machining center HEDELIUS RS 60 MAGNUM-2000
5-axis machining center HEDELIUS RS 60 MAGNUM-2000
5-axis machining center HEDELIUS RS 60 MAGNUM-2000
5-axis machining center HEDELIUS RS 60 MAGNUM-2000
5-axis machining center HEDELIUS RS 60 MAGNUM-2000
5-axis machining center HEDELIUS RS 60 MAGNUM-2000
5-axis machining center HEDELIUS RS 60 MAGNUM-2000
5-axis machining center HEDELIUS RS 60 MAGNUM-2000
5-axis machining center HEDELIUS RS 60 MAGNUM-2000
5-axis machining center HEDELIUS RS 60 MAGNUM-2000
5-axis machining center HEDELIUS RS 60 MAGNUM-2000
5-axis machining center HEDELIUS RS 60 MAGNUM-2000
5-axis machining center HEDELIUS RS 60 MAGNUM-2000
5-axis machining center HEDELIUS RS 60 MAGNUM-2000
5-axis machining center HEDELIUS RS 60 MAGNUM-2000
5-axis machining center HEDELIUS RS 60 MAGNUM-2000
more images
Brügg
1,303 km

5-axis machining center
HEDELIUSRS 60 MAGNUM-2000

Certified Dealer
Call
Listing
Vertical machining center Akira Seiki RMV700APC
Vertical machining center Akira Seiki RMV700APC
Vertical machining center Akira Seiki RMV700APC
Vertical machining center Akira Seiki RMV700APC
Vertical machining center Akira Seiki RMV700APC
Vertical machining center Akira Seiki RMV700APC
Vertical machining center Akira Seiki RMV700APC
Vertical machining center Akira Seiki RMV700APC
Vertical machining center Akira Seiki RMV700APC
Vertical machining center Akira Seiki RMV700APC
Vertical machining center Akira Seiki RMV700APC
Vertical machining center Akira Seiki RMV700APC
Vertical machining center Akira Seiki RMV700APC
Vertical machining center Akira Seiki RMV700APC
Vertical machining center Akira Seiki RMV700APC
Vertical machining center Akira Seiki RMV700APC
Vertical machining center Akira Seiki RMV700APC
Vertical machining center Akira Seiki RMV700APC
Vertical machining center Akira Seiki RMV700APC
Vertical machining center Akira Seiki RMV700APC
Vertical machining center Akira Seiki RMV700APC
more images
Germany Hagen
1,092 km

Vertical machining center
Akira SeikiRMV700APC

Call
Listing
Milling machining centers - vertical TAKUMI H 10
Milling machining centers - vertical TAKUMI H 10
Milling machining centers - vertical TAKUMI H 10
Milling machining centers - vertical TAKUMI H 10
Milling machining centers - vertical TAKUMI H 10
Milling machining centers - vertical TAKUMI H 10
Milling machining centers - vertical TAKUMI H 10
more images
Trittau
1,230 km

Milling machining centers - vertical
TAKUMIH 10

Certified Dealer
Call
Listing
Vertical machining center Hedelius C50/40/530/1800/8
Vertical machining center Hedelius C50/40/530/1800/8
Vertical machining center Hedelius C50/40/530/1800/8
Vertical machining center Hedelius C50/40/530/1800/8
Vertical machining center Hedelius C50/40/530/1800/8
more images
Germany Bremen
1,119 km

Vertical machining center
HedeliusC50/40/530/1800/8

Call
Listing
Vertical machining center Röders RFM 600
Vertical machining center Röders RFM 600
Vertical machining center Röders RFM 600
Vertical machining center Röders RFM 600
more images
Germany Bremen
1,119 km

Vertical machining center
RödersRFM 600

Call
Listing
Vertical machining center Hedelius C60-2500
Vertical machining center Hedelius C60-2500
Vertical machining center Hedelius C60-2500
Vertical machining center Hedelius C60-2500
Vertical machining center Hedelius C60-2500
Vertical machining center Hedelius C60-2500
Vertical machining center Hedelius C60-2500
Vertical machining center Hedelius C60-2500
more images
Germany Bremen
1,119 km

Vertical machining center
HedeliusC60-2500

Call
Auction
CNC horizontal machining center Felder Profit H200
CNC horizontal machining center Felder Profit H200
CNC horizontal machining center Felder Profit H200
CNC horizontal machining center Felder Profit H200
CNC horizontal machining center Felder Profit H200
CNC horizontal machining center Felder Profit H200
CNC horizontal machining center Felder Profit H200
CNC horizontal machining center Felder Profit H200
CNC horizontal machining center Felder Profit H200
CNC horizontal machining center Felder Profit H200
CNC horizontal machining center Felder Profit H200
CNC horizontal machining center Felder Profit H200
CNC horizontal machining center Felder Profit H200
CNC horizontal machining center Felder Profit H200
CNC horizontal machining center Felder Profit H200
Auction ended
Netherlands Netherlands
921 km

CNC horizontal machining center
FelderProfit H200

buyer-protection
Auction
CNC horizontal machining center SCM Accord 25 FX
CNC horizontal machining center SCM Accord 25 FX
CNC horizontal machining center SCM Accord 25 FX
CNC horizontal machining center SCM Accord 25 FX
CNC horizontal machining center SCM Accord 25 FX
CNC horizontal machining center SCM Accord 25 FX
CNC horizontal machining center SCM Accord 25 FX
CNC horizontal machining center SCM Accord 25 FX
CNC horizontal machining center SCM Accord 25 FX
CNC horizontal machining center SCM Accord 25 FX
CNC horizontal machining center SCM Accord 25 FX
CNC horizontal machining center SCM Accord 25 FX
Auction ended
Netherlands Netherlands
921 km

CNC horizontal machining center
SCMAccord 25 FX

buyer-protection
Auction
CNC horizontal machining center SCM Cyflex F900
CNC horizontal machining center SCM Cyflex F900
CNC horizontal machining center SCM Cyflex F900
CNC horizontal machining center SCM Cyflex F900
CNC horizontal machining center SCM Cyflex F900
CNC horizontal machining center SCM Cyflex F900
CNC horizontal machining center SCM Cyflex F900
CNC horizontal machining center SCM Cyflex F900
CNC horizontal machining center SCM Cyflex F900
CNC horizontal machining center SCM Cyflex F900
CNC horizontal machining center SCM Cyflex F900
CNC horizontal machining center SCM Cyflex F900
CNC horizontal machining center SCM Cyflex F900
CNC horizontal machining center SCM Cyflex F900
CNC horizontal machining center SCM Cyflex F900
Auction ended
Netherlands Netherlands
921 km

CNC horizontal machining center
SCMCyflex F900

buyer-protection
Auction
CNC horizontal machining center Homag Profi BOF 722/58/16/KC
CNC horizontal machining center Homag Profi BOF 722/58/16/KC
CNC horizontal machining center Homag Profi BOF 722/58/16/KC
CNC horizontal machining center Homag Profi BOF 722/58/16/KC
CNC horizontal machining center Homag Profi BOF 722/58/16/KC
CNC horizontal machining center Homag Profi BOF 722/58/16/KC
CNC horizontal machining center Homag Profi BOF 722/58/16/KC
CNC horizontal machining center Homag Profi BOF 722/58/16/KC
CNC horizontal machining center Homag Profi BOF 722/58/16/KC
CNC horizontal machining center Homag Profi BOF 722/58/16/KC
CNC horizontal machining center Homag Profi BOF 722/58/16/KC
CNC horizontal machining center Homag Profi BOF 722/58/16/KC
CNC horizontal machining center Homag Profi BOF 722/58/16/KC
CNC horizontal machining center Homag Profi BOF 722/58/16/KC
CNC horizontal machining center Homag Profi BOF 722/58/16/KC
Auction ended
Netherlands Netherlands
921 km

CNC horizontal machining center
HomagProfi BOF 722/58/16/KC

buyer-protection
Siegel

Trust Seal

Dealers certified through Machineseeker

Trust Seal
Listing
Universal machining center Deckel Maho DMU50 Evo Linear
Universal machining center Deckel Maho DMU50 Evo Linear
Universal machining center Deckel Maho DMU50 Evo Linear
Universal machining center Deckel Maho DMU50 Evo Linear
Universal machining center Deckel Maho DMU50 Evo Linear
Universal machining center Deckel Maho DMU50 Evo Linear
Universal machining center Deckel Maho DMU50 Evo Linear
Universal machining center Deckel Maho DMU50 Evo Linear
Universal machining center Deckel Maho DMU50 Evo Linear
Universal machining center Deckel Maho DMU50 Evo Linear
Universal machining center Deckel Maho DMU50 Evo Linear
Universal machining center Deckel Maho DMU50 Evo Linear
more images
Belgium Belgium
929 km

Universal machining center
Deckel MahoDMU50 Evo Linear

Call
Listing
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
Vertical machining center Mazak VCN 530 C SmoothG
more images
Germany Bevern
1,188 km

Vertical machining center
MazakVCN 530 C SmoothG

Call
Auction
Universal machining center DECKEL MAHO DMU 50 EVOLUTION
Universal machining center DECKEL MAHO DMU 50 EVOLUTION
Universal machining center DECKEL MAHO DMU 50 EVOLUTION
Universal machining center DECKEL MAHO DMU 50 EVOLUTION
Universal machining center DECKEL MAHO DMU 50 EVOLUTION
Universal machining center DECKEL MAHO DMU 50 EVOLUTION
Universal machining center DECKEL MAHO DMU 50 EVOLUTION
Universal machining center DECKEL MAHO DMU 50 EVOLUTION
Universal machining center DECKEL MAHO DMU 50 EVOLUTION
Universal machining center DECKEL MAHO DMU 50 EVOLUTION
Universal machining center DECKEL MAHO DMU 50 EVOLUTION
Universal machining center DECKEL MAHO DMU 50 EVOLUTION
Universal machining center DECKEL MAHO DMU 50 EVOLUTION
Universal machining center DECKEL MAHO DMU 50 EVOLUTION
Universal machining center DECKEL MAHO DMU 50 EVOLUTION
Universal machining center DECKEL MAHO DMU 50 EVOLUTION
Universal machining center DECKEL MAHO DMU 50 EVOLUTION
Universal machining center DECKEL MAHO DMU 50 EVOLUTION
Universal machining center DECKEL MAHO DMU 50 EVOLUTION
Universal machining center DECKEL MAHO DMU 50 EVOLUTION
Ends in 
min  Auction ended
Germany Hessen
1,188 km

Universal machining center
DECKEL MAHODMU 50 EVOLUTION

buyer-protection
Listing
CNC Horizontal Machine centers  Morbidelli M100 2018 5 Axis Morbidelli M100
CNC Horizontal Machine centers  Morbidelli M100 2018 5 Axis Morbidelli M100
CNC Horizontal Machine centers  Morbidelli M100 2018 5 Axis Morbidelli M100
CNC Horizontal Machine centers  Morbidelli M100 2018 5 Axis Morbidelli M100
CNC Horizontal Machine centers  Morbidelli M100 2018 5 Axis Morbidelli M100
CNC Horizontal Machine centers  Morbidelli M100 2018 5 Axis Morbidelli M100
CNC Horizontal Machine centers  Morbidelli M100 2018 5 Axis Morbidelli M100
CNC Horizontal Machine centers  Morbidelli M100 2018 5 Axis Morbidelli M100
CNC Horizontal Machine centers  Morbidelli M100 2018 5 Axis Morbidelli M100
CNC Horizontal Machine centers  Morbidelli M100 2018 5 Axis Morbidelli M100
CNC Horizontal Machine centers  Morbidelli M100 2018 5 Axis Morbidelli M100
CNC Horizontal Machine centers  Morbidelli M100 2018 5 Axis Morbidelli M100
CNC Horizontal Machine centers  Morbidelli M100 2018 5 Axis Morbidelli M100
CNC Horizontal Machine centers  Morbidelli M100 2018 5 Axis Morbidelli M100
CNC Horizontal Machine centers  Morbidelli M100 2018 5 Axis Morbidelli M100
more images
Netherlands Wijchen
961 km

CNC Horizontal Machine centers Morbidelli M100 2018 5 Axis
MorbidelliM100

Certified Dealer
Call

This may be of interest to you

Machinseeker Olympic Games

Olympic Games: Machineseeker supports “Team Germany” in Paris

EHF Champions League Sponsoring

For the third time in a row: Machineseeker is title sponsor of the EHF Champions League

Machineseeker No. 1 Marketplace

Why Machineseeker Remains Number One

Sell more machines!

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

Michael Manousakis Morlock Motors

Morlock Motors official partner of Machineseeker and Truckscout24

Gindumac about smart sales strategies and the importance of online platforms

About smart sales strategies and the importance of online platforms