Vertical Bridge Mills

Vertical Bridge Mills

When you need a machine tool to process your mid to large size parts, look no further than Amera-Seiki. Our Vertical Bridge Mill line offers the strength and speed to make short work of your toughest jobs.

We start with massive Meehanite castings, annealed to eliminate deformation caused by internal warpage and stress. A quiet two-speed spindle, driven by a powerful Fanuc motor, offers a winning combination of high speed and torque.

Our fully sealed, immersion-type lubrication system with standard oil chiller circulates coolant and keeps the machine running cool at high RPM. The rigid ball screws and powerful servo drives assure smooth cutting.


Amera-Seiki VB series bridge mills

Top Quality Vertical Bridge Mills


  • 48 Machine sizes to choose from! Our VB Series bridge mills can handle very large work pieces with X-Axis travels from 2.2 to 8.0 Meters and Y-Axis travels from 1.4 to 4.2 Meters!
  • Our base castings are 25% heavier than our competitors. This provides greater structural rigidity to reduce harmonics or chatter.
  • Need to change heads automatically? We offer Automatic Head Changers with up to 10 head capacity so we can accommodate right angle heads, swivel heads, extension heads and many, many more.
  • Doing a complex piece and need 5-Axis Simultaneous machining? We can do it with Fanuc, Siemens or Heidenhain controls, with up to 24,000 RPM utilizing HSK tooling!
  • Have a taller workpiece? We offer a W-Axis to extend the vertical travel!
top quality vertical bridge mills
Amera-Seiki vertical bridge mills
VB series bridge mills

“We’ve been an Amera-Seiki customer for 18 years. We have 15 Amera-Seiki machines.”

- Randy Sherbeyn
Springfield INC. (Springfield Armory)

VB Series Specifications

ItemUnitVB-14 SeriesVB-18 SeriesVB-21 SeriesVB-24 SeriesVB-28 SeriesVB-32 SeriesVB-36 SeriesVB-42 Series
ModelVB-142214271432182218271832184218522132214221522432A2442A2452A28322842285228603232324232523260364236523660424242524260
Distance between Columns (without splash guard)mm14001850215024502850325036504250
Table SizeLengthmm2000250030002000250030004000500030004000500030004000500030004000500060003000400050006000400050006000400050006000
Widthmm1300150018002000220026003000
Maximum Table Loadton891012131518201518201518201818202218182022202224202224
T-slotWidth x Pitch x No.mm22 x 150 x 722 x 150 x 922 x 150 x 1122 x 150 x 1328 x 180 x 1128 x 2000 x 1328 x 2000 x 15
TravelX - axismm2200270032002200270032004200520032004200520032004200520032004200520060003200420052006000420052006000420052006000
Y - axismm13001800210024002800320036004200
Z - axismm800800 (Optional 1100)800 (Optional 1100)1100 (Optional 1400)
SpindleNose to tablemm100 ~ 900200 ~ 1000
(200 ~ 1300)
100 ~ 900
(100 ~ 1200)
200 ~ 1000
(200 ~ 1300)
100 ~ 900
(100 ~ 1200)
100 ~ 900
(100 ~ 1200)
300 ~ 1400
(300 ~ 1700)
Center to Columnmm380430430
Taper / Speed / PowerRPM / kWBT50 / 6,000 - 18.5K / 22kWBT50 / 6,000 - 22K / 26kW
FeedrateCuttingmm/min5 ~ 12,0005 ~ 10,000
X - axis G00m/min24222224222018152018152018151512101015121010121010121010
Y / Z - axis G00m/min24/2020/1515/1512/15
Accuracy (JIS 6338)mmPositioning ±0.015 / full travel; Repeatability ±0.003Positioning ±0.015 / full travel; Repeatability ±0.003
ATC & Tool MagazineCapacity / DiammCam type ATC 24pcs / Max. Dia. Ø110 (full tools); Ø200 (adjascent pocket empty)Cam type ATC 24pcsChain type ATC 32pcs / Max. Dia. Ø125 (full tools); Ø220 (adjascent pocket empty)
Max tool weight / LengthKg/mm18kg / 350mm20kg / 400mm
Tool selectionTake shortest direction / M24 P3.0 - 45°Take shortest direction / M24 P3.0 - 45°
Power / Pneumatic40 ~ 50 KVA / 6.5 kg/cm²50 ~ 60 KVA / 6.5 kg/cm²
Machine SizeLengthmm6400740084006400740084001110013100840011100131008400111001310094001140013400154009400114001340015400114001340015400114001340015400
Widthmm34504550485051506000640068007400
Heightmm40504570 (5470)5500 (6400)
Machine Weight (app.)ton20222525283238433338433542454752576250556065586368636873

VBW Series Specifications

ItemUnitVBW-24 SeriesVBW-28 SeriesVBW-32 SeriesVBW-36 SeriesVBW-42 Series
ModelVBW-24322442245224602832284228522860324232523260364236523660424242524260
Distance between columns (without splash guard)mm24502850325036504250
Table SizeLengthmm30004000500060003000400050006000400050006000400050006000400050006000
Widthmm2000220026003000
Maximum Table Loadton1818202218182022182022202224202224
T-slotWidth x Pitch x NOmm28 x 180 x 1128 x 180 x 1128 x 200 x 1328 x 200 x 15
TravelX - axismm32004200520060003200420052006000420052006000420052006000420052006000
Y - axismm24002800320036004200
Z - axismm800 (100)1100 (1400)
W - axismm1000 (1500)Every 250mm positioning1000 (1500/2000) Every 250mm positioning
SpindleNose to tablemm100 ~ 800 (2100)100 ~ 2100 (2400)
Taper / Speed / PowerRPM/kWBT50 / 6,000 - 22 / 26kW BT50 / 6,000 - 22 / 26kW
FeedrateCuttingmm/min5 ~ 80005 ~ 8000
X / Y / Z / W axis G00m/min10 / 10 / 10 / 28 / 8 / 10 / 1
Accuracy (JIS 6338)mmPositioning ±0.015 / full travel; Repeatability ±0.003 Rail Level accuracy 0.01 / 1000
ATC & Tool MagazineCapacity / Diamm32 Pcs / Max. dia Ø125 (full tools); Ø220 (Adjascent pocket empty)
Max tool weight / Lengthkg/mm20kg / 400mm20kg / 400mm
Tool selectionFree position take shortest direction / M24 P3.0-45°
Power / Pneumatic60 ~ 70KVA / 6.5kg/cm²60 ~ 70KVA / 6.5kg/cm²
Machine SizeLengthmm94001140013400154009400114001340015400114001340015400114001340015400114001340015400
Widthmm73007700810085009100
Heightmm7500 (8400)8400 (9300)
Machine Weight (appr.)ton5257626755606570636873657075707580