APEC MTH Series – High Torque Bridge Mills for Titanium & Superalloys

The APEC MTH Series is the heavy-duty evolution of the MT Series, engineered for extreme cutting performance in titanium, Inconel, and high-nickel alloys. Built on the same robust U-shape gantry bridge mill design, the MTH adds reinforced structural stiffness, higher-torque spindles, and heavy-duty drive systems. This makes it ideal for industries such as aerospace, defense, power generation, and energy, where machining strength and reliability are mission-critical. Competing directly with Parpas, Fidia, Zimmerman, Fooke, and FPT, the APEC MTH Series is the clear choice when heavier cuts, deeper material removal, and superior rigidity are required.

Compare the MTH and MT Series

Benefits for Metal Cutting Manufacturers

The APEC MTH Series gantry bridge mills give manufacturers the power and stability to handle the toughest materials and heaviest machining conditions, ensuring long-term success in demanding aerospace programs.

  • High-power cutting capability – upgraded spindles with extreme torque deliver reliable heavy cutting of titanium and nickel alloys.
  • Reinforced rigidity – enhanced casting design absorbs higher cutting forces without vibration, ensuring tool stability.
  • Superior accuracy under load – maintains tolerance and surface finish even during aggressive material removal.
  • Cycle time savings – powerful roughing spindles and efficient chip evacuation reduce machining time on large parts.
  • Long-term reliability – engineered for durability under constant heavy-duty operation, minimizing downtime and unplanned maintenance.
  • Customer-ready results – end-users benefit from more reliable aerospace structures, better fatigue resistance, and superior surface finishes.

By combining rigidity, torque, and precision, the MTH Series provides manufacturers a platform designed to meet the challenges of next-generation aerospace and defense programs.

Key Features

  • U-shape gantry bridge mill with reinforced design – maximizes rigidity and stability during extreme cutting forces.
  • High-torque spindle packages – engineered for titanium, Inconel, and other difficult-to-machine alloys requiring deep roughing cuts.
  • Heavy-duty dual drive systems – optimized for slower, forceful machining while maintaining precision.
  • Multiple head exchange options – adaptable for both roughing and finishing strategies across materials.
  • Enhanced cooling and chip management – high-capacity coolant, spindle chillers, and flushing systems ensure thermal stability.
  • High-capacity enclosures – fully enclosed work zones for safe operation and effective coolant containment.
  • Advanced CNC controls – Heidenhain or Siemens, with 5-axis simultaneous machining for aerospace part accuracy.
  • Optimized for uptime – designed to withstand 24/7 heavy-duty operations in the most demanding environments.

Ideal Cutting Applications

The APEC MTH Series is tailored for heavy-duty aerospace and energy machining where power and rigidity are critical:

  • Titanium wing spars and ribs – aggressive removal of hard alloys while holding tolerance.
  • Fuselage frames and bulkheads – large, thick-section aerospace structures requiring stability.
  • Engine cases and mounts – machining of Inconel and nickel-based alloys.
  • Landing gear components – high-strength structural alloys requiring deep cuts.
  • Military and defense components – structural housings, missile system frames, and heavy armor parts.
  • Energy industry parts – turbine housings, blades, and large structural energy components.

Specifications

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Item / Model
MTH1530 Request a Quote
MTH2442 / 62-5S Request a Quote
MTH2842 / 62-5S Request a Quote

X-Axis

118.11″

165.35″ / 244.09″

165.35″ / 244.09″

Y-Axis

78.74″

118.11″

137.80″

Z-Axis

33.46″

39.37″

39.37″

Table Length

122.05″

157.48″ / 236.22″

157.48″ / 236.22″

Table Width

47.24″

81.10″

98.43″

Max Table Load

10,000 lbs.

28,000 lbs.

32,000 lbs.

Rapid Traverse (XYZ)

98.43 ft. /min

65.62 ft./min

65.62 ft./min

X/Y/Z Axis Acceleration

16.4 ft/sec²

Spindle Taper

HSK-100A

HSK-100A

HSK-100A

Spindle Speed

12,000 RPM

12,000 RPM

12,000 RPM

Spindle Power(S1/S6)

67.10/83.78 HP

67.05/105.27 HP

67.05/105.27 HP

Spindle Torque (S1/S6)

737.56 ft. lbs.

234.54 ft. lbs. / 368.80 ft. lbs.

234.54 ft. lbs. / 368.80 ft. lbs.

Recommended 2-Axis Head

Fork Type Milling Head

Fork Type Milling Head

Fork Type Milling Head

Swivel/Rotation Speed

B=C=30 (cont) /60 (max) RPM

Swivel/Rotation Torque

B=992.58/1,785.16 ft. lbs. C=1,187.12/2,178.61 ft. lbs.

B=991.30/1,785 ft. lbs. C=1,187.50/2,168.40 ft. lbs.

B=991.30/1,785 ft. lbs. C=1,187.50/2,168.40 ft. lbs.

Swivel/Rotation Angle

B = ±120° C = ±360°

B = ±120° C = ±360°

B = ±120° C = ±360°

Clamping Torque

B=4,425 ft. lbs. C=4,425 ft. lbs.

B=4,425 ft. lbs. C=4,425 ft. lbs.

B=4,425 ft. lbs. C=4,425 ft. lbs.

Tool Shank

32T pieces

32T pieces

32T pieces

Max Tool Length

15.75″

15.75″

15.75″

Max Tool Diameter with Adjacent Tool

Ø4.92″

Ø4.92″

Ø4.92″

Max Tool Diameter without Adjacent Tool

Ø9.84″

Ø7.87″

Ø7.87″

Weight

54,000 lbs.

74,000 lbs.

94,000 lbs.

Category

APEC MT Series

APEC MTH Series

Core Function

High-rigidity 5-axis gantry bridge mill for aerospace and mold & die machining

Heavy-duty 5-axis gantry bridge mill built for extreme power and heavy cutting

Structural Design

U-shape gantry structure guides cutting forces directly into base for rigidity

Same U-shape gantry, but reinforced for higher stiffness under heavy loads

Best For

Aerospace aluminum, light titanium, and precision mold & die machining

Aerospace titanium, Inconel, high-nickel alloys, defense and energy applications

Spindle

High-speed and high-torque spindle options (up to ~20,000 rpm)

High-torque spindle packages optimized for heavy material removal in hard alloys

Table Design

Large-format work envelope with chip flushing and high-pressure coolant systems

Similar large-format envelope, with enhanced chip evacuation and cooling capacity

Automation

Multi-head exchange options, tool management, integrated probing

Same options, but reinforced for continuous 24/7 heavy-duty operation

Highlight Advantage

Balanced performance: rigidity + high accuracy for complex aerospace parts

Extreme cutting power: maximum torque, stiffness, and reliability in hard alloys