Our CNC Horizontal Boring Mills
Lucas 40T CNC: X = 150" Y = 84" Z = 48" W = 72"
Lucas 40T CNC: X = 96" Y = 72" Z = 48" W = 72"
Lucas 300T CNC 6" 4-axis: X = 84" Y = 84" Z = 84" W = 36"
Lucas 30T CNC: X = 84" Y = 84" Z = 48" W = 36"
TOS Varnsdorf CNC Heidenhein 426: X = 138" Y = 98" Z = 49" W = 31" with 5th axis
TOS Varnsdorf CNC Heidenhein 426: X = 138" Y = 79" Z = 49" W = 31" with 5th axis
The process of qualifying aircraft landing gear requires boring mills that can remove large amounts of stock rapidly and accurately. Ewart-Ohlson is equipped with seven 5” and 6” bar CNC horizontal boring mills for this purpose, with machining envelopes as large as 150” in X, 98” in Y, and 72” in Z. Two of these are five-axis machines, including 360,000 position tables. This gives Ewart-Ohlson the ability to perform highly accurate finishing operations as well as roughing operations where stock removal is paramount.
Our CNC Deep Hole Drilling Machines
Cincinnati Deep Hole HBM — 14.5" ID x 126" dp
Cincinnati Deep Hole HBM — 14.5" ID x 79" dp
Ewart-Ohlson Deep Hole Drilling and Boring Machine — 14.5" ID x 132" dp
One of Ewart-Ohlson’s specialties is ID stock removal from large forgings. The company owns three deep hole drilling machines, including one that has been custom built to our requirements. These machines can drill up to eleven inches diameter for a depth of eleven feet in a single pass. In addition, these machines can be equipped with customized boring heads to produce complex finished forms. Ewart-Ohlson designs and manufactures its own boring heads and cartridges to meet customer requirements.
Our CNC Turning Centers
Republic Lagun American Turnmaster CMT-79 CNC Lathe — 79" swing x 160" lg
SAFOP Leonard 1000/1800 CNC Lathe — 98.5" swing x 256" lg
Mori Seiki LL-7A-3500 CNC Lathe — 51" swing x 138" lg
Mazak Slant Turn 80 CNC Lathe — 42" swing x 100" lg
Warner & Swasey SC-36 CNC Lathe — 36" swing x 80" lg
Ewart-Ohlson’s CNC lathes have the capacity to machine some of the largest forgings produced for the modern commercial aircraft industry. The company’s five CNC lathes can swing up parts up to 98.5” by 256” long. Full CNC control enables these machines to form complex contours to exacting tolerances.
Our Engine Lathes
Le Blond 4025/65-130 Gap lathe — 132" swing x 168" lg
Tuda Heavy Duty Engine lathe — 50" swing x 200" lg (24" x 65" gap)
For roughing work, where stock removal is the key to profitability, Ewart-Ohlson has two large manual lathes. One of them has a gap allowing it to swing parts with irregular shapes up to 132”.
Quality Control
FARO Arm 4 Meter Portable CMM w/ Polyworks
Ferranti Maxi-Check DCC Co-ordinate Measuring Machine — X = 40" Y = 60" Z = 30"
The modern aerospace industry demands in-tolerance product without fail. To meet these requirements, Ewart-Ohlson has certified its quality system to the requirements of AS9100, the aerospace variant of ISO9001. Full documentation, traceable by serial number, is maintained on all product manufactured at Ewart-Ohlson, and certificates of conformance are provided with all shipments. All the inspection equipment in use at Ewart-Ohlson, including its DCC co-ordinate measuring machine, are kept in an environmentally controlled room and are calibrated annually, traceable to the NIST.
Material Handling Capabilities
Overhead Crane: Capacity from 3 tons to 20 tons
Taylor Y-20-W0N Lift Truck: 20,000#
Yale GLC155CANGBE098 Lift truck: 15,500#
Daewoo GC30S LP Lift Truck: 6,000#
Hyster Lift Truck — 12,000#
Ewart-Ohlson works with forgings that weigh up to fourteen thousand pounds and has the equipment to move these pieces safely and securely. Our plant is equipped with cranes that can lift up to twenty tons, and the hook height in the tallest bay is eighteen feet. Four lift trucks with lifting capacities rated from 6,000 to 20,000 pounds are available to move pieces from storage to the plant floor.