The Simmons ATL CNC Axle Lathe series are affordable and compact machines for the finish turning of wheel seats, bearing journal fillets, and upset axles ends for reclaiming of railway axles as well as new axle production. The ATL-240 and ATL-440 are larger swing machines for turning axle features on mounted wheel sets, while the ATL-230 and ATL-430 turn bare axles. The ATL-230 and ATL-240 are single carriage machines, while the ATL-430 and ATL-440 are dual carriage machines, enabling shorter cycle times. The machines are fully enclosed with manually operated doors, with options available for automatic part loading.
The ATL machines are controlled by the easy-to-use Siemens 840D CNC system, which is accessed by a Simmons Human Machine Interface (HMI) that uses graphical user interfaces (GUIs) and railway wheel shop nomenclature, eliminating the need for operators to learn machine tool programming language.
The ATL machines are equipped with eight station automatic tool turrets, which allows for probing devices. The machine construction utilizes meehanite castings and solid machine ways hardened and precision ground.
|Machine Length||215 in.||5461 mm|
|Machine Width||82 in.||2083 mm|
|Machine Height||78 in.||1982 mm|
|Machine Weight Range||17500-20000 lbs.||7938-9072 kg|
|ATL-230/430 Swing Over Bed||30 in.||762 mm|
|ATL-240/440 Swing Over Bed||40 in.||1016 mm|
|ATL-230/430 Swing Over Cross Slide||18 in.||457.2 mm|
|ATL-240/440 Swing Over Cross Slide||28 in.||711.2 mm|
|Positioning Accuracy||+/- 0.0002 in.||+/- 0.00508 mm|
|Positioning Repeatability||+/- 0.0001 in.||+/- 0.00254 mm|
|Maximum Spindle Speed||1500 RPM|
|ATL-230/240 Electrical Power||80 amps|
|ATL-430/440 Electrical Power||110 amps|
|Compressed Air||90 psi @ 5 cfm|
|Maximum Axle Length||102 in.||2591 mm|