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Johnford Bridge Machine centers

Choose from a package of different configurations

Johnford DMC Series – Moving Table Bridge Mills

The extensive Johnford DMC series of 27 moving-table bridge mills provides a comprehensive selection of machine sizes and capabilities.

Machine X-Y-Z travels range from 36″ x 36″ x 30″ (3455 mm x 3455 mm x 760 mm) to 196″ x 157″ x 32/42″ (4978 mm x 3989 mm x 812/1067 mm), with W-axis travel optional on the largest machines. Spindle tapers include CT-40 (HSK-63) and CT-50 (HSK 100). Spindle power, depending on the machine, ranges from 15 hp to 35 hp.

Most models have one-piece column and bridge castings. Massive Z-axis heads and Y-axis saddles feature square box ways coated with Turcite and have diagonally arranged ribs engineered to minimize distortion than can result long-time heavy duty service. The X-axis table traverse is accomplished via heavy duty Schneeberger roller linear ways for accurate positioning of heavy work pieces. Large diameter, pretensioned ballscrews and powerful servo motors also aid positioning accuracy.

Ergonomics are designed to facilitate easy loading and unloading. Twin screw-type conveyors plus a caterpillar conveyor ensure complete chip removal with little manual cleaning.

The standard rotary B-axis has a hydrostatic bearing system and is driven via a high-precision dual pinion mechanism. With the high-resolution encoder, B-axis accuracy is +/-7.5 arc seconds with +/-5 arc seconds repeatability. Standard features includes a stand-alone heavy duty 60 tool (80 and 120 tool optional) arm type automatic tool changer, a comprehensive chip removal system, a high volume coolant system, and 300 psi coolant through the spindle. The standard Fanuc 31iM-B control features the Fanuc Alpha I servo system with 1,000,000 pulse encoders.

A comprehensive selection of options enables users to custom-tailor machine capabilities to specific production needs. Choices include axis extenders, rotary tables, pallet changers, tool and part probes and high-pressure coolant systems.

Specifications
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Item / Model DMC-900 DMC-900H DMC-1200 DMC-1200H
X Travel (in.) 36 36 48 48
Y Travel (in.) 36 36 36 36
Z Travel (in.) 30 30 30 30
W Travel (in.) – – – –
Table Load (lbs.) 6,600 6.600 8,360 8,360
Rapids (in./min.) 944 944 944 944
Control OiM-F / 31iM-B OiM-F / 31iM-B OiM-F / 31iM-B OiM-F / 31iM-B
Spindle Taper CT-40 (HSK-63) CT-50 (HSK-100) CT-40 (HSK-63) CT-50 (HSK-100)
RPM (K) 10 6 / 8 10 6 / 8
Spindle (HP) 15 25 15 25
Spindle Drive 2 Speed Gearbox 2 Speed Gearbox 2 Speed Gearbox 2 Speed Gearbox
ATC Capacity CAT 24 24 24 24
Weight (lbs.) 22,000 22,000 26,400 26,400
Item / Model DMC-1500 DMC-1500H DMC-1600 DMC-1600H
X Travel (in.) 60 60 63 63
Y Travel (in.) 36 36 51 51
Z Travel (in.) 30 30 32 32
W Travel (in.) – – – –
Table Load (lbs.) 10,120 10,120 13,200 13,200
Rapids (in./min.) 944 944 590 590
Control OiM-F / 31iM-B OiM-F / 31iM-B OiM-F / 31iM-B OiM-F / 31iM-B
Spindle Taper CT-40 (HSK-63) CT-50 (HSK-100) CT-40 (HSK-63) CT-50 (HSK-100)
RPM (K) 10 6 / 8 10 6 / 8
Spindle (HP) 15 25 15 35
Spindle Drive 2 Speed Gearbox 2 Speed Gearbox 2 Speed Gearbox 2 Speed Gearbox
ATC Capacity CAT 24 24 24 40
Weight (lbs.) 33,000 33,000 45,000 45,000
Item / Model DMC-2100 DMC-2100H DMC-3100 DMC-3100H
X Travel (in.) 81 81 120 120
Y Travel (in.) 51 51 51 51
Z Travel (in.) 32 32 32 32
W Travel (in.) – – – –
Table Load (lbs.) 13,200 13,200 13,200 13,200
Rapids (in./min.) 590 590 590 590
Control OiM-F / 31iM-B OiM-F / 31iM-B OiM-F / 31iM-B OiM-F / 31iM-B
Spindle Taper CT-40 (HSK-63) CT-50 (HSK-100) CT-40 (HSK-63) CT-50 (HSK-100)
RPM (K) 10 6 / 8 10 6 / 8
Spindle (HP) 15 35 15 35
Spindle Drive 2 Speed Gearbox 2 Speed Gearbox 2 Speed Gearbox 2 Speed Gearbox
ATC Capacity CAT 24 40 24 40
Weight (lbs.) 52,000 52,000 59,000 59,000
Item / Model DMC-4100H DMC-2100S DMC-2100SH DMC-2600S
X Travel (in.) 157 83 83 102
Y Travel (in.) 51 70 70 70
Z Travel (in.) 32 32 / 42 32 / 42 32 / 42
W Travel (in.) – – – –
Table Load (lbs.) 13,200 22,200 22,200 22,200
Rapids (in./min.) 590 472 472 472
Control OiM-F / 31iM-B OiM-F / 31iM-B OiM-F / 31iM-B OiM-F / 31iM-B
Spindle Taper CT-50 (HSK-100) CT-40 (HSK-63) CT-50 (HSK-100) CT-40 (HSK-63)
RPM (K) 6 / 8 10 6 / 8 10
Spindle (HP) 35 15 35 15
Spindle Drive 2 Speed Gearbox 2 Speed Gearbox 2 Speed Gearbox 2 Speed Gearbox
ATC Capacity CAT 40 24 40 24
Weight (lbs.) 66,000 65,120 65,120 68,640
Item / Model DMC-2600SH DMC-3100S DMC-3100SH DMC-4100SH
X Travel (in.) 102 122 122 157
Y Travel (in.) 70 70 70 70
Z Travel (in.) 32 / 42 32 / 42 32 / 42 32 / 42
W Travel (in.) – – – –
Table Load (lbs.) 22,200 22,200 22,200 22,200
Rapids (in./min.) 472 472 472 472
Control OiM-F / 31iM-B OiM-F / 31iM-B OiM-F / 31iM-B OiM-F / 31iM-B
Spindle Taper CT-50 (HSK-100) CT-40 (HSK-63) CT-50 (HSK-100) CT-50 (HSK-100)
RPM (K) 6 / 8 10 6 / 8 6 / 8
Spindle (HP) 35 15 35 35
Spindle Drive 2 Speed Gearbox 2 Speed Gearbox 2 Speed Gearbox 2 Speed Gearbox
ATC Capacity CAT 40 24 40 40
Weight (lbs.) 68,640 72,160 72,160 79,000
Item / Model DMC-3100P DMC-3100PH DMC-4100P DMC-4100PH
X Travel (in.) 122 122 161 161
Y Travel (in.) 90 90 90 90
Z Travel (in.) 32 / 42 32 / 42 32 / 42 32 / 42
W Travel (in.) Optional Optional Optional Optional
Table Load (lbs.) 22,200 22,200 22,200 22,200
Rapids (in./min.) 472 472 472 472
Control OiM-F / 31iM-B OiM-F / 31iM-B OiM-F / 31iM-B OiM-F / 31iM-B
Spindle Taper CT-40 (HSK-63) CT-50 (HSK-100) CT-40 (HSK-63) CT-50 (HSK-100)
RPM (K) 10 6 / 8 10 6 / 8
Spindle (HP) 15 35 15 35
Spindle Drive 2 Speed Gearbox 2 Speed Gearbox 2 Speed Gearbox 2 Speed Gearbox
ATC Capacity CAT 24 40 24 40
Weight (lbs.) 77,000 77,000 90,200 90,200
Item / Model DMC-5100PH DMC-4000 DMC-5000
X Travel (in.) 198 157 196
Y Travel (in.) 90 110 – 157 157
Z Travel (in.) 32 / 42 32 / 42 32 / 42
W Travel (in.) Optional Optional Optional
Table Load (lbs.) 22,200 44,000 44,000
Rapids (in./min.) 472 472 472
Control OiM-F / 31iM-B OiM-F / 31iM-B OiM-F / 31iM-B
Spindle Taper CT-50 (HSK-100) CT-50 (HSK-100) CT-50 (HSK-100)
RPM (K) 6 / 8 6 / 8 6 / 8
Spindle (HP) 35 35 35
Spindle Drive 2 Speed Gearbox 2 Speed Gearbox 2 Speed Gearbox
ATC Capacity CAT 40 40 40
Weight (lbs.) 104,000 145,640 165,000
Standard Equipment
  • Flood Coolant System with programmable air blast
  • Air blast for spindle
  • Auto Lubrication with Alarm
  • Automated chip removal system with chip conveyors
  • Halogen work lamp
  • 2 speed geared head
  • Remote Handwheel
  • Heat exchangers for control cabinets
  • Hydraulic counterbalance for headstock
  • Rigid Tapping
Optional Accessories
  • 1,000 PSI Coolant through the Spindle
  • Larger Tool Magazines up to 120 Tools
  • Automatic Pallet Changers (DMC Models Only)
  • Part and Tool Probes
  • 50 HP Spindle Motors on Large Models
  • 15K RPM Direct Drive 40 Taper
  • 10K RPM Direct Drive 50 Taper
  • 15K RPM 56 HP Weiss HSK-100A Spindles
  • 24K RPM 31 HP Weiss HSK-63A Spindles
  • 5 Face Head
  • 5 Axis Heads
  • W Axis Travel 1 Meter, 1.5 Meters, 2 Meters
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