Yes they can be installed either or.
I looked at one last week.
I have a Rotary SPO-10 in my shop, a new Atlas apex 10 went in to another shop close by me, I know the guys so I went over to look at it about a week ago. They installed theirs Asymmetric. It comes with universal arms that are supposed to work in either configuration. The fronts are shorter 3 stage arms and the rears are 58" 2 stage arms. They use the same arms for sym or asym.
Some things I noticed. The atlas apex is almost an exact copy of the rotary SP series (Like my SPO 10). The shape/profile of the columns is an exact copy, the arm carriers seem the very same, the arms are a bit different but the base plates are almost identical except atlas puts a couple more holes per plate for more anchors. The lift is an obvious copy of the rotary, right down to the molded plastic safety latch covers.
A couple of differences that are hard to spot without a tape measure.
The width between columns on the atlas is a little less that the rotary in both configurations. My SPO-10 is 115" between columns in symmetric config, the atlas is 112.5" between columns in symmetric config. As stated, the atlas uses the same arms regardless of symmetric or asymmetric setup. My SPO 10 has matching 3 stage 59" arms front and back, If I wanted to set mine up as asymmetric (SPOA 10) it uses a different set of arms.
One last observation, my SPO 10 Rotary is 100% friendly to a 12' ceiling height. The Atlas will install just fine under a 12' ceiling (the top crossbar clears easily) but with the lift at max height, the cylinder tops of the atlas protrude past the column tops to a height of 148". That's going to smash 2 holes through a 12' ceiling. My rotary cylinders also protrude up past the column tops at max lift but they stop just shy of 143".
I wan't to put a new atlas apex in a new building for my business but I have a 12' ceiling so I have some thinking to do. I'm not super warm to the idea of relieving a couple of clearance holes for the apex cylinders in my ceiling. The price is fantastic, the design is a copy of the rotary which is excellent, but it doesn't look like it's really friendly to a 12' ceiling.
My SPO 10 has a 72.5" rise height with screw adjust pads all the way down, no adapters. The Atlas is maxed at 70" height with the same type of pads. Couple of inches not a big deal but hard to understand when the atlas cylinders stick up 5" higher than the rotary's, and the rotary lifts higher.
I like the price of the Atlas way better than the Rotary, I can make it work in my new building if I relieve some clearance in my ceiling for each cylinder, just not sure I want to do that.
Also this is my first post, Hi. lol
Dave from northern MN, hot rod and classic resto shop owner.