Uses of EMH Cranes in the Aviation Industry Gantry Crane This gantry at a western aircraft manufacturing plant has a span of 133 feet and a height of 40 feet. Lifting is performed by an EMH 20 Ton Custom Engineered Hoist. (Click on the photo above to see an enlarged version.) Overhead Cranes | AL SYSTEMS | NOMAD | EMH Endtrucks | System 2000 Kits | Home | Products | What's New | About EMH | Feedback | Literature | Site Map | Contact EMH | Dealer Information | Material Handling Equipment | Hoists | Gantry Cranes | Bridge Cranes | Cranes & Hoists