Johnford DMC L/LH Series 3100mm – 6100mm with 2800mm (110.2″) Extended Y-Axis Travel or 3099mm (122″)

Johnford’s LH Series CNC bridge mills deliver expanded large-part machining capability with an extended Y-axis travel of 2800 mm (110.2″), with optional 3099 mm (122″) configurations to handle parts over 10 feet wide. This extended Y-axis range significantly increases versatility, enabling manufacturers to take on larger, more complex jobs that boost shop throughput and deliver a faster return on investment. Improved efficiency, productivity, and accuracy make the LH Series a smart choice for high-value work.

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

Built for Large-Scale, High-Rigidity Machining

The LH Series builds on Johnford’s proven P-Series design while offering even greater part capacity at a highly competitive cost. Designed with offset Y-axis ways and an extra-massive saddle, these machines keep the spindle centerline extremely close to the bridge for superior rigidity. The result is stable, precise cutting performance even on the heaviest and largest workpieces. Johnford’s signature Meehanite cast construction and wide Y-axis way spacing deliver exceptional vibration damping and durability under heavy loads.

Advanced 5-Face and 5-Axis Machining Options

For manufacturers needing maximum flexibility, the LH Series offers optional 5-face and 5-axis machining capabilities. Available heads include a fully automated 5-sided head with 360° rotation in 5° increments, which can be automatically attached and detached during machining and stored in its own cradle outside the cutting envelope. For true 5-axis work, the AC-5 heavy-duty milling head features an HSK-100A tooling system and a Weiss 10,000 RPM integral spindle delivering 47 HP and 258 ft-lbs of torque at just 1,000 RPM—ideal for heavy cutting applications. The AC-4 milling head offers an HSK-63A tooling system with a 20,000 RPM integral spindle producing 31 HP and 83 ft-lbs of peak torque at 6,000 RPM, making it ideal for semi-roughing and finishing operations.

Key Features:

  • Extended 2800 mm (110.2″) Y-axis travel, optional 3099 mm (122″) for 10′ wide parts
  • Offset Y-axis ways with massive saddle for superior rigidity
  • Extra-wide Y-axis way spacing to support large, heavy headstocks
  • One-piece Meehanite cast construction for maximum vibration damping
  • Competitive cost for large-part machining capacity
  • Optional 5-sided machining head with 360° rotation in 5° increments
  • Automatic head storage cradle outside the machining envelope
  • AC-5 heavy-duty 5-axis milling head with HSK-100A, 10,000 RPM spindle, 47 HP, 258 ft-lbs torque
  • AC-4 5-axis milling head with HSK-63A, 20,000 RPM spindle, 31 HP, 83 ft-lbs torque
  • Customized machine sizes and configurations available

Ideal for:

  • Aerospace structural components
  • Large mold and die work
  • Complex multi-face machining
  • High-volume production of large workpieces

Need a customized-size CNC Bridge Mill?

Johnford prides itself on offering countless customized sizes and payload designs in both DMC moving table / fixed column designs and SDMC sliding column / fixed table designs.

Get a Quote or Learn More

Ready to take on larger, more complex parts with industry-leading rigidity and precision?

Contact us today for pricing, demos, or expert advice.

Specifications

Item / Model
DMC-3100LH Request a Quote
DMC-4100LH Request a Quote
DMC-5100LH Request a Quote
DMC-6100LH Request a Quote

X Travel

122″

161.4″

200″

240.1″

Y Travel

110.2″ (122″ opt.)

110.2″ (122″ opt.)

110.2″ (122″ opt.)

110.2″ (122″ opt.)

Z Travel

31.5″ (42″ opt.)

31.5″ (42″ opt.)

31.5″ (42″ opt.)

31.5″ (42″ opt.)

W Travel (opt.)

39.4″/59.1″/78.7″

39.4″/59.1″/78.7″

39.4″/59.1″/78.7″

39.4″/59.1″/78.7″

Distance Between Columns

110.2″ (126″ opt.)

110.2″ (126″ opt.)

110.2″ (126″ opt.)

110.2″ (126″ opt.)

Table Size

Table Load

26,400 lbs.

30,800 lbs.

35,200 lbs.

39,600 lbs.

Rapids X/Y/Z

472/472/472 IPM

472/472/472 IPM

472/472/472 IPM

472/472/472 IPM

CNC Control

Oi-MF Plus (31i-MB opt.)

Oi-MF Plus (31i-MB opt.)

Oi-MF Plus (31i-MB opt.)

OiM-F / 31iM-B

Spindle Taper

CAT-50 / BT-50 (HSK-100A opt.)

CAT-50 / BT-50  (HSK-100 opt.)

CAT-50 / BT-50 (HSK-100 opt.)

CAT-50 / BT-50 (HSK-100 opt.)

Spindle RPM
BT-50/CAT-50
((HSK-100A))

6,000 (8,000/10,000 opt.)
((15,000))

6,000 (8,000/10,000 opt.)
((15,000))

6,000 (8,000/10,000 opt.)
((15,000))

6,000 (8,000/10,000 opt.)
((15,000))

Spindle Motor
BT-50/CAT-50
(HSK-100A)

35 HP Hi/Lo Gear
(56 HP Integral Built-In)

35 HP Hi/Lo Gear
(56 HP Integral Built-In)

35 HP Hi/Lo Gear
(56 HP Integral Built-In)

35 HP Hi/Lo Gear
(56 HP Integral Built-In)

Spindle Drive
BT-50/CAT-50
(HSK)

2 Speed Gearbox
(Integral Built-In)

2 Speed Gearbox
(Integral Built-In)

2 Speed Gearbox
(Integral Built-In)

2 Speed Gearbox
(Integral Built-In)

ATC Capacity

40 Arm-Type (60, 80, 120 opt.)

40 Arm-Type (60, 80, 120 opt.)

40 Arm-Type (60, 80, 120 opt.)

40 Arm-Type (60, 80, 120 opt.)

Weight

85,800 lbs.

99,000 lbs.

112,200 lbs.

125,400 lbs.

  • 5-Axis / 5-Face Machining Heads
  • Contact tool setting system (Renishaw or Marposs)
  • High pressure coolant through spindle (400/1,000 PSI)
  • Workpiece measuring system (Renishaw or Marposs)
  • Linear scales
  • 60 Tools or more (BT-50/CAT-50/HSK-100A)
  • 60 Tools or more (BT-40/CAT-40/HSK-63A)
  • 18,000, 24,000 RPM for HSK-63A built-in spindle
  • 15,000 RPM for HSK-100A built-in spindle
  • 15,000 RPM direct drive for BT-40/CAT-40
  • 8,00 RPM for BT-50/CAT-50
  • 10,000 RPM direct drive for BT-50/CAT-50
  • Thermal compensation hardware/software
  • Fanuc 31iM-b Plus controller
  • Full machine enclosure