Term Definition
acouStac® A complete motorized system consisting of retracting fabric banner and hoist frame. Multiple banners can be linked together via driveshaft to operate from one motor.
Band Flat stainless steel material which is used to lift bottom channel. Wraps on drum in yo-yo fashion. A specially designed clamp is used to secure to bottom channel.
Band Clamp Device which secures band to bottom channel. Consists of two face plates and two mounting plates. Laser cut and black zinc plated.
Banner Consists of two fabric panels, one front and one back, connected by stackers.
Bottom Channel Channel connected to band with a specially designed clamp. The bottom channel is raised to collect the stackers and raise the banner, and lowered to deploy the banner. One bottom channel is required per banner. A limit switch attached to the shaft controls the travel of the bottom channel.
Bottom Weight A 3" or 6" shape used to tension bottom fabric panel.
Clip An injection molded plastic piece which is used to connect two rails. Spacing along length of rail is nominal 3-0 to 4-0. Available 3 or 6 wide. A special tool is used to remove clips.
Control Station May be a single cabinet with push buttons, a touch screen, or other interface.
Drum The steel lifting band wraps onto the drum to raise and lower the banner. The drum is made of an aluminum core and clamp, and two flanged hubs. It is secured onto the shaft with a keyway.
Encoder Device which is connected to shaft or motor which relays a signal to PLC or control station to provide constant monitoring of an acouStac® position.
Fabric Stretch Wool and velour segment will stretch. The amount depends on the height of the banner. The upper segments will stretch more than the lower segments. The overall average for wool and velour is approximately 3/8 per foot of panel height.
Flange Block A bearing mounted to a frame plate designed to support radial load and align the shaft.
Frame The upper portion of the assembly consists of four aluminum extrusions (frame rails) and plates. Houses the shaft, flanges. Motor, limit switches and encoders may also be in frame. A standard frame is covered on two or three sides with 3mm expanded PVC (Sintra).
Limit Switch Is used to stop motor at desired position. Standard configuration is up, down, up overtravel, down overtravel. Options include intermediate stops.
Lobe The portion of the end plate which drops down below the frame to protect the trimming frame.
Marrow Hem A serge machine is used to stitch thread around the side edge of velour fabric to create a finished edge and prevent unraveling. (Aka serge stitch)
Model Number The acouStac® has a model number designation. Each part of the model number defines a characteristic of the acouStac®.
Ex: 3V11 20x30 (3 = 3 clip width, 11= 11 segment height, 20x30 = 20 ft wide x 30 ft tall banner)
Motor Provides the force to rotate the shaft. Standard is 208 3ph, 1/2 HP. Motor can be ordered to be mounted in any of three positions depending on conditions.
Panel Fabric segments are assembled to create a panel. A panel is one side of a banner. Front and back panels are connected by a stacker to create a banner.
Plate, End The frame consists of aluminum extrusions and a combination of side and middle plates. The end plates have a drop down lobe to conceal and protect the ends of the fabric trimming frame.
Plate, Middle The frame consists of aluminum extrusions and a combination of side and middle plates. The middle plates are spaced as needed and support the various components of the drive and control systems.
Rail Aluminum extrusion. A clip connects two rails to form a stacker. Fabric segments slide into the rail.
Rail Lubricant The rail may be lubricated with a spray to aid with the assembly of long segments. Model # 314 MolyKote by 3M
Roller Device which centers the band between the two panels. Also helps to maintain tension on band. Consists of two plates and a UHMW cylinder.
Segment Lengths of fabric which make up a panel. Segments are wider than they are tall. Ex: 8-0 wide x 11 tall. The height is measured from stacker to stacker. Each segment has a hem at top and bottom. The side edges can be marrow stitch finished (velour) or unfinished (wool).
Segment, Bottom A segment which is used at the bottom of a banner. This piece connects the front and back panels and supports the bottom tube.
Segment, Standard A segment which has a hem at top and bottom. A panel is made up of standard segments with a top and bottom segment. No webbing or other alterations. Standards sizes are 6, 11 15, 24
Segment, Top The uppermost piece of fabric in a panel assembly. Consists of heavy-duty material and #2 grommets, which are installed on 12 centers. Typical top segment is 11 from top of trim frame to stacker.
Segment, Variable Variable height segments which are added or removed to achieve a desired overall banner height.
Shaft A 1018 steel fully keyed shafting to which the drums and motor are mounted. Sizes depend on load and speed. Other devices may be mounted to shaft such as sprocket, limit switch or encoder.
Stacking Width The horizontal amount of space the acouStac® will occupy when viewed from the end.
Stacking Width = b + c + 1
b = segment height
c = clip width (3 or 6)
1 = stacking variable
Trimming Frame Used to provide adjustment of 1 in field. A pair of 2 sq. tubes are assembled and mounted with a 5/8 threaded rod to the frame.
Trimming Frame Connector 5/8 x 6 rod-end used to raise and lower the trimming frame.
Turn-Under Hem Standard hem in which 3 layers of fabric are stitched together to create an edge which will be paired with the adjacent segment and assembled into the fabric rail.
Velour (IFR) A type of fabric used in construction of acouStacs®. A wide range of standard colors are available as well as custom dyes. Weight per linear yard is 24 oz per linear yard. Standard width of stock fabric is 54. Inherently Flame Resistant.
Also see: Acoustic testing.
Wool Serge A type of fabric used in construction of acouStacs®. Can be custom dyed. Weight per linear yard is 31 oz. Standard width of stock fabric is 59. Flame Resistant Treated.
Also see: Acoustic testing.