Our extension springs come in various sizes, and all color codes meet DASMA specifications, You will find double-looped ends standard on most with clipped-ends standard on 200-pound pulls or greater.
| Sizes available | |
|---|---|
| 25 x 42……………..7' | Double-looped end standard; clipped-end standard on 200 lb pull or greater |
| 27 x 48................. 8’ | Colour Codes meet DASMA specifications. |
| 32 x 48................. 8’ | |
| 36 x 54................. 9’ | |
| 44 x 60................. 10’ | |
| 53 x 72................. 12’ |
Specialty springs from Arrow Tru-Line come in several varieties with options for pusher springs, bumper springs, and more.
ATL offers spring component accessories including a rigid plastic spring filler in addition to a spring guard that upgrades homeowner safety.
Our torsion tubes measure 0.995 inches in diameter and come in several different lengths and gauges. The 16GA and 14GA tubes are galvanized while the 11GA is hot rolled.
| Length | 16GA - Galvanized | 14GA - Galvanized | 11GA - Hot Rolled |
|---|---|---|---|
| 8'10" | x | x | |
| 9'10" | x | x | |
| 10'10" | x | x | |
| 12'10" | x | x | |
| 14'10" | x | x | |
| 16'10" | x | x | x |
| 18'10" | x | x | x |
| 20'10" | x | ||
| 1" NON-ADJUSTABLE COUPLER |
Our solid shafts are available in 1” and 1 ¼” in various lengths. We also offer high quality shaft and tube couplers in addition to shaft collars.
| Accessories |
|---|
| 3" Shaft Key - Straight |
| 1" Bore Coupler |
| 1-1/4" Bore Coupler |
| 1" Shaft Collar |
| 1-1/4" Shaft Collar |
Torsion springs from Arrow Tru-Line come in several varieties depending on the wire size, spring diameter, and spring coatings.
Our cast steel duplex fittings come with various parts to ensure proper installation and reliable strength and security. Specifically, these products are an 80,000 PSI steel zinc plated casting.
The aluminum duplex spring fittings we have available feature the multiple parts needed for a proper duplex spring fitting alongside a list of the required fasteners that are necessary for attachment.
| Assembled from standard 3-3/4" & 6" components | Requires the following fasteners: |
|---|---|
| (1) each 3-3/4" short ear, 3-3/4" long ear stationary fittings | (2) 3/8" - 16 x 1-1/2" hex head bolts |
| (1) each 6" stationary fitting and 6" winding fitting | (2) 3/8" - 16 x 1-1/4" hex head bolts |
| Red head set screws (complies with DASMA 103) | (4) 3/8" lock washers |
Universal spring fittings are designed to fit either a left or right wound spring. ATL supplies Universal fittings for 1-3/4”, 2”, 2-5/8”, and 3-3/4” inside diameter springs.
| Max. Wire Size Diameter | Set Screw Installed | Mounting | |
|---|---|---|---|
| 3-3/4" | 0.4062 | 3/8"-16x1-1/2" (2) | 1"tube or solid shaft - min. 1/2 turns on set screws |
| 2-5/8" | 0.331 | 3/8"-16x1" (2) | 1"tube or solid shaft - min. 1/2 turns on set screws |
| 2" | 0.3065 | 3/8"-16x1" (2) | 1" tube or solid shaft |
| 1-3/4" | 0.295 | 3/8"-16x1" (2) | 1" tube or solid shaft |
Single thread spring fittings can only be used for the hand it was manufactured for. ATL supplies Single Thread fittings for 3-3/4” and 6” inside diameter springs.
| Max. Wire Size Diameter | Set Screw Installed | Mounting | |
|---|---|---|---|
| 6" | 0.4375 | 3/8"-16 x 2" (2) | 1" solid shaft - max. 30 ft. lbs. set screws torque |
| 3-3/4" | 0.4062 | 3/8" - 16 x 1-1/2" (2) | 1" tube or solid shaft - min. 1/2 turns on set screws |
Duplex spring bracket assemblies are used to mount duplex springs, and they are primarily used when the inner spring is longer than the outer spring. Our kit comes with a variety of pieces and is available with 1” or 1 ¼” bearings.
Our customer service team works hard to find a “yes” solution to your business needs. Then again, our people are so nice some customers just call to say hi. Either way, we look forward to hearing from you!
