The problem with rigging is that to do it well and safely, you have to be taught hands on by a competent rigger. Reading and learning about rigging is great, but you can read everything ever written about rigging and you will still not be safe!
That's why the question "How do I rig this or that" usually gets the response "Hire a rigger!" The simple fact is that there is no getting around bad rigging. If you make a mistake, somebody could die or get seriously hurt.
The other problem in this topic is that Airwall tracks (airwall is a generic term for the moveable walls used to separate large ballrooms into smaller rooms) come in many styles and types. Without knowing the track shape and track style, and its manufacturers rated capacity, you will not know what hardware is needed for your application. Sure, there are many generic types of airwall hangers (like the Future Light ones I use), but not all hangers fit all tracks!
In fact, airwalls are not the best thing to hang stuff from, it's just that sometimes they are the only thing in the ceiling that will work. In many cases, rooms have other things to rig from that are better and safer than airwall tracks. For instance, many hotel ballrooms have drop ceilings. Simply remove a tile and you may find some large support beams or trusses overhead, hidden by the false drop ceiling. Way safer and stronger to rig a beam clamp or wrap a spanset around a beam or truss than use an airwall.
If the drop ceiling was installed correctly (as they are in many commercial properties) you can use a special "Ceiling Tile" and rig a light from the drop ceiling grid itself.
Future Light has a rigging tile.
http://www.future-light.com/products/tilemount.htmlHere in Vegas, most hotels have Unistrut built into the ceiling for hanging lights and decor from. And many rooms have built in 1-2 ton ceiling points from which you can hang motors and truss from. Way better than rigging from an airwall track.
The 2 main problems with rigging from airwall tracks are:
1) You don't have a lot of weight capacity as the tracks are made to support wide wall segments, not a single point load
2) Its easy to damage some tracks if you don't know what you are doing
Other problems include getting grease all over the place as many tracks use a thick grease for wheel lube, airwalls not being in a great position for the lights, and of course, the hall wanting to move a wall while your fixtures are bolted to the track! Some gigs you can ask every person who works at the building and every person connected to the event if the walls need to move, and for some reason, somebody will still decide that a wall needs to move after you have placed all your stuff up in the air!
Last, as I stated in a previous post, many people use the trim moulding to rig from, and not the track itself. That is very dangerous as the trim pieces are not meant to take any weight and can fail with even the lightest of loads. Rig only off of the airwall TRACK (where the walls hang from), not the TRIM.
My advice to you is to find a qualified rigger in your area and take the rigger to the track you want to hang from, and have them decide what hardware you will need. Then hire them the day of the show and have them install your stuff. That way you will get the right hardware for the track, and will be shown how to do it correctly. It may cost a bunch, but that's the only way to safely do the job.
Craig