Johnford SDMC Series – Sliding Column Bridge Mills

The Johnford SDMC Series delivers exceptional flexibility and structural integrity for machining the largest and heaviest workpieces. These sliding column, fixed-table bridge mills feature machine weights exceeding 400,000 lbs. and travels up to 30 meters, providing unlimited table load capacity and absolute accuracy across long production runs. Models are available with X-axis travels up to 25,000 mm (984″), and can be configured as 3-Axis, 5-Face, or full 5-Axis machines to match part geometries and complexity requirements. Johnford is known globally for building custom machine configurations to meet specific manufacturing needs.

3-Axis SDMC Bridge Mills

Johnford’s 3-axis SDMC machines are built for large, heavy-duty machining with X, Y, and Z travel only. This configuration provides the greatest simplicity and cost efficiency for shops that don’t require complex angular positioning. With a fixed table and sliding column design, the workpiece stays stationary—making these machines ideal for massive parts with extreme weight or length.

Key Features

  • X/Y/Z axis configuration with massive travels
  • Fixed-table, moving-gantry design for unlimited table loads
  • Meehanite castings with machine weights up to 403,000 lbs.
  • Ideal for heavy cutting on flat or prismatic parts
  • ATC system up to 60 tools (expandable)
  • Optional W-axis for additional vertical clearance

Ideal For

  • Mold and die bases
  • Large machine beds or frames
  • Structural plates and industrial tooling
  • Shops requiring size, strength, and simplicity

5-Face SDMC Bridge Mills

The 5-face SDMC configuration adds an automatic indexing head for multi-plane machining—enabling access to the top, front, rear, and both sides of a part. This reduces setups, improves part accuracy, and dramatically increases throughput. Johnford’s cradle-stored head design makes head changes automatic and efficient, while maintaining the same SDMC rigidity and table load capacity.

Key Features

  • 5-face automatic head attachment with 90° positioning
  • Programmable head rotation in 5° increments
  • Reduces part setups and operator repositioning
  • Ideal for boxy, structural parts requiring multiple face access
  • Same fixed-table, sliding column architecture
  • ATC and chip removal system included

Ideal For

  • Large equipment housings
  • Aerospace structures and weldments
  • Multi-sided mold bases
  • Shops improving setup efficiency

5-Axis SDMC Bridge Mills

Johnford’s full 5-axis SDMC machines are equipped with a 2-axis continuous contouring head for simultaneous 5-axis machining. Built on the same ultra-rigid sliding gantry platform, these machines are ideal for swept surfaces, angular features, complex contours, and deep cavities. Choose from Johnford’s in-house-designed AC-4 or AC-5 heads for high-performance cutting, depending on your torque, speed, and application requirements.

Key Features

  • 2-axis continuous head for full simultaneous 5-axis control
  • AC-42 (HSK-63A, 20,000 RPM, 31 HP) for high-speed finishing
  • AC-52 (HSK-100A, 10,000 RPM, 47 HP) for heavy cutting
  • Precision angular control across large workpieces
  • Reduces setups and unlocks complex part geometries
  • Still built on the same fixed-table, unlimited-load SDMC structure

Ideal For

  • Aerospace components with compound curves
  • Precision mold & die machining
  • Energy-sector and defense parts
  • High-mix, low-volume production needing full flexibility

No matter which SDMC configuration you choose—3-axis, 5-face, or full 5-axis—each machine is engineered with Johnford’s signature strength, accuracy, and flexibility.
Contact us today to spec out your custom machine or request a quote.

Too much machine for the job? Check out Johnford’s moving table/fixed column DMC Series:

Looking for a different size/capability? Check out other models in the DMC Series:

  • DMC Series – 900mm – 1500mm Moving Table/Fixed Column Bridge Mills
  • DMC Series – 1600mm – 6100mm Moving Table/Fixed Column Bridge Mills
  • S/SH Series – 2100mm – 6100mm with 1780mm (70″) Extended Y-Axis Travel
  • P/PH Series – 3100mm – 6100mm with 2300mm (90.5″) Extended Y-Axis Travel
  • L/LH Series – 3100mm – 6100mm with 2800mm (110.2″) Extended Y-Axis Travel
  • Fixed/Moving Column & 5-Axis/5-Face – 4000mm – 6000mm+W

Specifications

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Item / Model
SDMC-5000 Request a Quote
SDMC-6000 Request a Quote
SDMC-7000 Request a Quote
SDMC-8000 Request a Quote
SDMC-9000 Request a Quote
SDMC-10000 – 25000 Request a Quote

X Travel

197″

236″

275″

315″

354″

394″ – 984″

Y Travel

72″ – 197″

72″ – 236″

72″ – 236″

72″ – 236″

72″ – 236″

72″ – 236″

Z Travel

42″ (48″/60″ opt.)

42″ (48″/60″ opt.)

42″ (48″/60″ opt.)

42″ (48″/60″ opt.)

42″ (48″/60″ opt.)

42″ (48″/60″ opt.)

Distance Between Columns

71″ – 197″

71″ – 236″

71″ – 236″

71″ – 236″

71″ – 236″

71″ – 236″

W Axis (opt.)

39.4″ – 78.7″

39.4″ – 78.7″

39.4″ – 78.7″

39.4″ – 78.7″

39.4″ – 78.7″

39.8″ – 78.7″

Table Size

197″ x 52″ – 157″

236″ x 52″ – 157″

275″ x 52″ – 216″

315″ x 52″ – 216″

354″ x 52″ – 216″

394″ – 984″ x
52″ – 216″

Table Load

11,000 lbs./M2

11,000 lbs./M2

11,000 lbs./M2

11,000 lbs./M2

11,000 lbs./M2

11,000 lbs./M2

Rapid Traverse (XYZ)

394 IPM (787 opt.)

394 IPM (787 opt.)

394 IPM (787 opt.)

394 IPM (787 opt.)

394 IPM (787 opt.)

394 IPM (787 opt.)

CNC Control

Fanuc Oi-MF Plus or
31i-MB Plus

Fanuc Oi-MF Plus or
31i-MB Plus

Fanuc Oi-MF Plus or
31i-MB Plus

Fanuc Oi-MF Plus or
31i-MB Plus

Fanuc Oi-MF Plus or
31i-MB Plus

Fanuc Oi-MF Plus or
31i-MB Plus

Spindle Taper

CAT-50 (BT-50 opt.)

CAT-50 (BT-50 opt.)

CAT-50 (BT-50 opt.)

CAT-50 (BT-50 opt.)

CAT-50 (BT-50 opt.)

CAT-50 (BT-50 opt.)

Spindle Speed

6,000 RPM (up to 15,000 opt.)

6,000 RPM (up to 15,000 opt.)

6,000 RPM (up to 15,000 opt.)

6,000 RPM (up to 15,000 opt.)

6,000 RPM (up to 15,000 opt.)

6,000 RPM (up to 15,000 opt.)

Spindle Motor

35 HP (50 HP opt.)

35 HP (50 HP opt.)

35 HP (50 HP opt.)

35 HP (50 HP opt.)

35 HP (50 HP opt.)

35 HP (50 HP opt.)

Spindle Drive

2 Speed Gearbox

2 Speed Gearbox

2 Speed Gearbox

2 Speed Gearbox

2 Speed Gearbox

2 Speed Gearbox

ATC Capacity

40 (60/80/120 opt.)

40 (60/80/120 opt.)

40 (60/80/120 opt.)

40 (60/80/120 opt.)

40 (60/80/120 opt.)

40 (60/80/120 opt.)

Weight (est. base only)

120,000 lbs.

142,000 lbs.

170,000 lbs.

220,000 lbs.

240,000 lbs.

260,000 – 300,000 lbs.+

Item / Model
SDMC-5000x1800-1066+5F Request a Quote
SDMC-6000×1800-1066+5F Request a Quote
SDMC-7000x2800-1066+5F Request a Quote
SDMC-8000x2800-1066+5F Request a Quote
SDMC-9000x2800-1066+5F Request a Quote
SDMC-10000-25000×1800-6000+5F Request a Quote

X Travel

197″

236″

275″

315″

354″

394″ – 984″

Y Travel

102″ – 228″

102″ – 268″

102″ – 268″

102″ – 268″

102″ – 268″

102″ – 268″

Z Travel

42″ (48″/60″ opt.)

42″ (48″/60″ opt.)

42″ (48″/60″ opt.)

42″ (48″/60″ opt.)

42″ (48″/60″ opt.)

42″ (48″/60″ opt.)

Distance Between Columns

71″ – 158″

71″ – 236″

71″ – 236″

71″ – 236″

71″ – 236″

71″ – 236″

W Axis (opt.)

39.4″ – 78.7″

39.4″ – 78.7″

39.4″ – 78.7″

39.4″ – 78.7″

39.4″ – 78.7″

39.8″ – 78.7″

Table Size

197″ x 52″ – 197″ x 138″

236″ x 51″ – 236″ x 138″

275″ x 87″ – 138″

315″ x 87 – 134″

354″ x 87 – 134″

394″ x 138″

Table Load

11,000 lbs./M2

11,000 lbs./M2

11,000 lbs./M2

11,000 lbs./M2

11,000 lbs./M2

11,000 lbs./M2

Rapid Traverse (XYZ)

394 IPM (787 opt.)

394 IPM (787 opt.)

394 IPM (787 opt.)

394 IPM (787 opt.)

394 IPM (787 opt.)

394 IPM (787 opt.)

CNC Control

Fanuc Oi-MF Plus or
31i-MB Plus

Fanuc Oi-MF Plus or
31i-MB Plus

Fanuc Oi-MF Plus or
31i-MB Plus

Fanuc Oi-MF Plus or
31i-MB Plus

Fanuc Oi-MF Plus or
31i-MB Plus

Fanuc Oi-MF Plus or
31i-MB Plus

Automatic Attachment
Changer

2 – 4 Positions

2 – 4 Positions

2 – 4 Positions

2 – 4 Positions

2 – 4 Positions

2 – 4 Positions

5-Face Index

1, 2.5, 5 Degrees

1, 2.5, 5 Degrees

1, 2.5, 5 Degrees

1, 2.5, 5 Degrees

1, 2.5, 5 Degrees

1, 2.5, 5 Degrees

Spindle Taper

CAT-50 (BT-50 opt.)

CAT-50 (BT-50 opt.)

CAT-50 (BT-50 opt.)

CAT-50 (BT-50 opt.)

CAT-50 (BT-50 opt.)

CAT-50 (BT-50 opt.)

Spindle Speed

6,000/2,000 RPM

6,000/2,000 RPM

6,000/2,000 RPM

6,000/2,000 RPM

6,000/2,000 RPM

6,000/2,000 RPM

Spindle Motor

35 HP (50 opt.)

35 HP (50 opt.)

35 HP (50 opt.)

35 HP (50 opt.)

35 HP (50 opt.)

35 HP (50 opt.)

Spindle Drive

2 Speed Gearbox

2 Speed Gearbox

2 Speed Gearbox

2 Speed Gearbox

2 Speed Gearbox

2 Speed Gearbox

ATC Capacity

40 (60/80/120 opt.)

40 (60/80/120 opt.)

40 (60/80/120 opt.)

40 (60/80/120 opt.)

40 (60/80/120 opt.)

40 (60/80/120 opt.)

Weight (est. base only)

120,000 – 160,000 lbs.

140,000 – 175,000 lbs.

140,000 – 175,000 lbs.

200,000 lbs.

175,000 – 264,000 lbs.

212,000 – 300,000 lbs.+

Item / Model
SDMC-5000x1800-5000+5A Request a Quote
SDMC-6000×1800-6000+5A Request a Quote
SDMC-7000x2800-6000+5A Request a Quote
SDMC-8000x2800-6000+5A Request a Quote
SDMC-9000x2800-6000+5A Request a Quote
SDMC-10000×2800-6000+5A Request a Quote

X Travel

197″

236″

275″

315″

354″

394″ – 984″

Y Travel

102″ – 228″

102″ – 268″

102″ – 268″

102″ – 268″

102″ – 268″

102″ – 268″

Z Travel

42″ (48″/60″ opt.)

42″ (48″/60″ opt.)

42″ (48″/60″ opt.)

42″ (48″/60″ opt.)

42″ (48″/60″ opt.)

42″ (48″/60″ opt.)

Distance Between Columns

71″ – 158″

71″ – 236″

71″ – 236″

71″ – 236″

71″ – 236″

71″ – 236″

W Axis (opt.)

39.4″ – 78.7″

39.4″ – 78.7″

39.4″ – 78.7″

39.4″ – 78.7″

39.4″ – 78.7″

39.8″ – 78.7″

Table Size

197″ x 52″ – 138″

236″ x 52″ – 138″

275″ x 87″ – 138″

315″ x 87″ – 138″

354″ x 87″ – 138″

394″ x 87″ – 138″

Table Load

11,000 lbs./M2

11,000 lbs./M2

11,000 lbs./M2

11,000 lbs./M2

11,000 lbs./M2

11,000 lbs./M2

Rapid Traverse (XYZ)

394 IPM (787 opt.)

394 IPM (787 opt.)

394 IPM (787 opt.)

394 IPM (787 opt.)

394 IPM (787 opt.)

394 IPM (787 opt.)

CNC Control

Fanuc Oi-MF Plus or
31i-MB Plus

Fanuc Oi-MF Plus or
31i-MB Plus

Fanuc Oi-MF Plus or
31i-MB Plus

Fanuc Oi-MF Plus or
31i-MB Plus

Fanuc Oi-MF Plus or
31i-MB Plus

Fanuc Oi-MF Plus or
31i-MB Plus

ATC Capacity

40 (60/80/120 opt.)

40 (60/80/120 opt.)

40 (60/80/120 opt.)

40 (60/80/120 opt.)

40 (60/80/120 opt.)

40 (60/80/120 opt.)

TU-35 Heavy-Duty
Mono Head

Spindle Taper

CAT-50 (HSK-100A opt.)

CAT-50 (HSK-100A opt.)

CAT-50 (HSK-100A opt.)

CAT-50 (HSK-100A opt.)

CAT-50 (HSK-100A opt.)

CAT-50 (HSK-100A opt.)

Spindle Speed

4,000 RPM (6,000 opt.)

4,000 RPM (6,000 opt.)

4,000 RPM (6,000 opt.)

4,000 RPM (6,000 opt.)

4,000 RPM (6,000 opt.)

4,000 RPM (6,000 opt.)

Spindle Motor

35 HP (50 opt.)

35 HP (50 opt.)

35 HP (50 opt.)

35 HP (50 opt.)

35 HP (50 opt.)

35 HP (50 opt.)

Spindle Drive

2 Speed Gearbox

2 Speed Gearbox

2 Speed Gearbox

2 Speed Gearbox

2 Speed Gearbox

2 Speed Gearbox

AC-52 High-Speed
Fork-Type Head

Spindle Taper

HSK-100A (HSK-63A opt.)

HSK-100A (HSK-63A opt.)

HSK-100A (HSK-63A opt.)

HSK-100A (HSK-63A opt.)

HSK-100A (HSK-63A opt.)

HSK-100A (HSK-63A opt.)

Spindle Speed

10,000 RPM (24,000 opt.)

10,000 RPM (24,000 opt.)

10,000 RPM (24,000 opt.)

10,000 RPM (24,000 opt.)

10,000 RPM (24,000 opt.)

10,000 RPM (24,000 opt.)

Spindle Drive

Integral Motor

Integral Motor

Integral Motor

Integral Motor

Integral Motor

Integral Motor

Spindle Motor

52 HP

52 HP

52 HP

52 HP

52 HP

52 HP

Weight (est. base only)

120,000 – 160,000 lbs.

140,000 – 175,000 lbs.

140,000 – 175,000 lbs.

150,000 – 200,000 lbs.

175,000 – 264,000 lbs.

212,000 – 300,000 lbs.+

3 Axis Standard Accessories

  • Dual linear scales on X
  • Flood coolant system with programmable air blast
  • Air blast for spindle
  • Auto lubrication with alarm
  • Chip removal system with (3) caterpillar-type chip conveyors
  • Halogen work lamp
  • 2-Speed geared head with spindle/headstock cooler
  • Remote handwheel
  • Heat exchangers for control cabinets
  • Hydraulic counterbalance for headstock
  • Rigid tapping

5 Face Standard Accessories

  • Dual linear scales on X
  • Flood coolant system with programmable air blast
  • Air blast for spindle
  • Auto lubrication with alarm
  • Chip removal system with chip conveyors
  • Halogen work lamp
  • 2-Speed geared head with spindle/headstock cooler
  • Remote handwheel
  • Heat exchangers for control cabinets
  • Hyrdraulic counterbalance for headstock
  • Rigid tapping
  • Automatic attachment changer (2 positions) include (1) 5FH01A milling head with 5 degree index and (1) cover plate

5 Axis Standard Accessories

  • Dual linear scales on X
  • Flood coolant system with programmable air blast
  • Air blast for spindle
  • Auto lubrication with alarm
  • Chip removal system with chip conveyors
  • Halogen work lamp
  • Remote handwheel
  • Heat exchangers for control cabinets
  • Hydraulic counterbalance for headstock
  • Rigid tapping
  • Spindle / headstock chiller

3 Axis Options

  • 5-Face Heads
  • 5-Axis Heads
  • Fanuc 31iM-B Plus control instead of Fanuc OiM-F Plus
  • Extended Z Axis travel 42” (48” spindle nose to table max. / 6” min.)
  • Extended Z Axis travel 48” (54” spindle nose to table max. / 6” min.)
  • Extended Z Axis travel 60” (66” spindle nose to table max. / 6” min.)
  • 50HP spindle motor upgrade
  • Unist Uni-Max cool lubricator for near dry machining – installed
  • Marposs part probe (multiple options available)
  • Marposs tool setter (multiple options available)
  • Renishaw part probe (multiple options available)
  • Renishaw tool setter (multiple options available)
  • Fanuc AC Drive for 4th Axis and 4th Axis interface
  • High pressure coolant thru spindle 400 PSI
  • High pressure coolant thru spindle 1000 PSI
  • 440/ 460 / 480 Volt operation
  • 60 Tool ATC
  • 80 Tool ATC
  • 120 Tool ATC
  • 8,000 RPM spindle upgrade
  • 10,000 RPM direct drive 35HP spindle upgrade from 6,000 RPM (122 ft./lbs. torque)
  • 10,000 RPM direct drive 40HP spindle upgrade from 6,000 RPM (258 ft./lbs. torque)
  • 15,000 RPM Weiss 56HP integral spindle HSK-100A taper
  • Linear scales in Y & Z Axes
  • Heavy duty right angle milling head (50 taper input, 50 taper output) (head limited to 2000 RPM max. and 25HP max.)
  • Heavy duty adjustable angle milling head (50 taper input, 50 taper output) (Head limited to 1200 RPM max. and 20HP max.)
  • Control options available upon request

5 Face Options

  • BT-50 tool changer
  • Extended Z Axis travel 48”
  • Extended Z Axis travel 60” (19.7” x 19.7” square ram, 50HP spindle, 4000 RPM
  • 50HP spindle motor and larger gear box
  • 52HP integral motor spindle instead of 35HP + 2 speed gearbox
  • 2.5 Degree head index instead of 5 degree
  • 3 Position automatic head changer (2 position is standard) (this holds 2 heads + cover)
  • 4 Position automatic head changer (2 position is standard) (this holds 3 heads + cover)
  • F5H01A Right angle milling head (auto index and auto tool change)
  • MH01A Multi-angle milling head (C and A axis auto index and auto tool change)
  • EH07 432mm Extension head (auto attach and hyd clamp / unclamp manual tool change)
  • EH07 450mm Extension head (auto attach and hyd clamp / unclamp manual tool change)
  • EH09 500mm Extension head (auto attach and hydraulic clamp / unclamp manual tool change)
  • ERH01 283mm Right angle extended head (auto attach and tool change by manual bolt)
  • ERH02 500mm Right angle Extended Head (auto attach and tool change by manual bolt)
  • ERH03 605mm Slim right angle extended head (auto attach, tool change by manual bolt)
  • NSH01 30 Degree fixed angle milling head (auto index and tool change by manual bolt)
  • NSH02 Non – standard milling head (auto index and tool change by manual bolt)
  • Marposs part probe (multiple options available)
  • Marposs tool setter (multiple options available)
  • Renishaw part probe (multiple options available)
  • Renishaw tool setter (multiple options available)
  • Fanuc AC Drive for 4th Axis and 4th Axis interface
  • High pressure coolant thru spindle 400 PSI
  • High pressure coolant thru spindle 1000 PSI (includes dual filters)
  • 440 / 460 / 480 Volt operation
  • 60 Tool ATC
  • 80 Tool ATC
  • 120 Tool ATC
  • Linear scales in Y & Z Axes
  • Control options available upon request

5-Axis Options

  • Z Axis travel extension to 48″ / 60” from 42”
  • 50HP spindle motor upgrade
  • HSK-100A spindle and tool changer instead of 50 taper
  • 6,000 RPM spindle upgrade with air/oil mist lubrication
  • 50HP spindle motor upgrade
  • Unist Uni-Max cool lubricator for near dry machining – installed
  • Marposs part probe (multiple options available)
  • Marposs tool setter (multiple options available)
  • Renishaw part probe (multiple options available)
  • Renishaw tool setter (multiple options available)
  • 6000 RPM spindle upgrade with air / oil mist lubrication of bearings and gears
  • Thermal compensation software including installation and machine mapping
  • High pressure coolant thru spindle 400 PSI
  • High pressure coolant thru spindle 1000 PSI
  • 440/ 460 / 480 Volt operation
  • 60 Tool ATC
  • 80 Tool ATC
  • 120 Tool ATC
  • Linear scales on Y & Z Axes
  • Siemens One Control instead of Fanuc 31iM-B Plus
  • Control options available upon request

5-Face Heads

  • 5-Face Milling Head: 90°, C-Axis 5°/2.5° (opt.) 1° (opt.), BT-50, 2000 RPM (4000 opt.), 30kW Power, 1500 N-m Torque, ∅200 Max Tooling Diameter, Hydraulic/Automatic Tool Change, Coolant Thru Spindle (opt.)
  • Extended Vertical Milling Head: BT-50, 4000 RPM, 30kW Power, 800N-M Torque, ∅215 Max Tooling Diameter, 5829.3mm Extension, Auto Clamp Tool Change
  • MA25 or Multi-Angle Milling Head: C-Axis 5°/2.5° (opt.) 1° (opt.) 360°, A-Axis 5°/2.5° (opt.) 1° (opt.) ± 110°, BT-50, 2000 RPM, 30kW Power, 1,500 N-m Torque, ∅200 Max Tooling Diameter, Hydraulic/Automatic Tool Change
  • Slim Extended Head: Auto 5°/2.5° (opt.), BT-50, 2000 RPM, 30kW Power, 800 N-m Torque, ∅215 Max Tooling Diameter, Manual Tool Change

5-Axis / 2-Axis NC Heads

  • TU35+ Multi-Angle Head: BT-50 (HSK-100A opt.), C-Axis Min. Increment ±180° / 0.001°, A-Axis Min. Increment 360° / 0.001°, 4000 RPM, 35kW Power, 1,500 N-m Torque, ∅200 Max Tooling Diameter, Hydraulic/Automatic Tool Change
  • AC42: HSK-63A, 6,000 RPM std./20,000 max., C-Axis +/-200°, A-Axis +/-110°, 21kW (S1) 24kW (S6 60%), 34 N-m Continuous / 112 N-M max., Hydraulic Clamping
  • AC52: HSK-100A, 1,000 RPM std./10,000 max., C-Axis +/-200°, A-Axis +/-110°, 31kW (s1) 40kW (S6 40%), 290 N-m (S1) / 386 N-m (S6), Hydraulic Clamping

FAQs

Can you customize X,Y, and Z travels in the Johnford DMC series?

Yes, Johnford can build machines in the DMC series with up to 240 inches in x-travel and up to 157 inches in y-travel. Johnford will also customize the DMC series with up to 2 meters of w-axis travel.

What are some examples of common parts made using bridge mills?

Weldments, molds, dies, plate work, forgings

Does Johnford have a full 5-axis head configuration?

Yes, with spindle speeds from 4,000 rpm with a 2-speed gearbox up to 20,000 rpm with an integral spindle motor.

Does the Johnford DMC series offer a solution for high speed and complex 3D machining?

Yes. Johnford offers our DMC Hi-Net series with spindles ranging from 15,000 rpm in an HSK-100A to 24,000 rpm in an HSK-63A with features such as Fanuc 31i-MB control, thermal growth automatic compensation, and Heidenhain linear scales on X, Y, and Z axes.