130 Years

OF GEARING EXPERIENCE

ADVANCED GEARING HEAT TREAT

Horsburgh & Scott has in-house gas carburizing, induction hardening, stress relieving and through-hardening to meet all of your gearing heat treat requirements. We also have resident metallurgical expertise for process design and process control.

CARBURIZING

A surface heat treatment process in which iron or steel absorbs carbon when the metal is heated, with the intent of making the metal harder and stronger (3310, 4320, 4820, 8620, 18CrNiMon7, etc.)

INDUCTION HARDENING

A form of surface heat treatment in which a metal part is heated by induction heating and then quenched.

THROUGH HARDENING

Carbon and alloy steels (1045, 4130, 4140, 4330v, 4340, etc.) that are hardened to ranges between 200 - 400 BHN.

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IN-HOUSE HARDENING FOR HIGH QUALITY AND RELIABILITY

Induction Hardening

  • Newly installed CNC gear induction hardening machine
  • Gears to 5.0m diameter x 0.75m face
  • Shafts to 3.0m length x 1.25m face
  • Optimized for gear pitches of 3.0DP to 0.75DP
  • Nondestructive ultrasonic case depth testing

Carburizing and Hardening

  • Newly installed pit carburizing furnaces
    • 1 pit 2.0m diameter x 2.5m depth
    • 1 pit 2.5m diameter x 2.0m depth
  • Other pit carburizing furnaces
    • 2 pits 1.0m diameter x 1.5m depth
    • 2 pits 2.0m diameter x 4.5m depth

Dedicated Heat Treat Facility

  • Stand-alone 50,000 sq. ft. facility
  • Captive and commercial carburizing and hardening
  • Captive induction and commercial hardening
  • Experienced metallurgical engineering staff
  • Gears and shafts processed from 100 to 50,000 lbs.

Other Heat Treat Equipment

  • Stress relieving (up to 100,000 lbs.)
    • 6.0m x 6.0m x 4.0m
    • 5.0m x 5.0m x 4.0m
    • 2.0m x 4.0m x 2.0m
  • EquoTip, Knoop, King, Rockwell, Micro and BHN hardness testers
  • Complete metallurgical laboratory

Our Capabilities

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Horsburgh & Scott has 130 years of engineering expertise in high torque, large gear drive systems. We use the world’s most advanced gear cutting equipment and can duplicate virtually any gear geometry.
Gears up to 40 ft. (12m) in diameter Grinding to AGMA Class 14 Heat treating and carburizing up to 50,000 lbs (22,000kg) Induction hardening to 5m in diameter or 30,000 lbs (13,000kg) Quality measurements within 2 microns

ENGINEERING, MANUFACTURING & MAINTAINING GEARS WORLDWIDE

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HORSBURGH & SCOTT USES THE MOST ADVANCED GEAR CUTTING TECHNOLOGY TO DELIVER THE HIGHEST QUALITY GEARING SOLUTIONS.
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