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Trench Shoring
The Most Capable Shoring Systems in the World

AcmeThread, LongShore, and LockStroke Systems

Paratech has three shoring systems for trench support, the AcmeThread shoring system, and the LongShore shoring system and the LocksStroke shoring system. The AcmeThread and LockStroke shoring systems are the smaller and more mobile shoring strut systems. The AcmeThread system is the most versatile, great for shoring a trench, but equally good shoring unstable structures or stabilizing vehicles. The LockStroke shoring system is a trench specialist, designed to be lowered into a trench, pressurized against Finnform or walers, and with its auto-locking system, that’s it. The LockStroke will automatically lock itself in a pressurized position. The LongShore is the heavy-duty shoring strut system. Able to shore incredible loads at extended distances, it is the go-to shoring solution for the most extreme circumstances.

 

AcmeThread Rescue Strut System

The Paratech AcmeThread Struts are comprised of a 2½” diameter Acme threaded aluminum movable solid shaft that extends out of a 3” diameter aluminum tube. The AcmeThread is a square thread that allows full surface contact of the shaft through the collar and the collar full surface contact on the tube to transfer the load directly to the ground. AcmeThread Struts can be extended manually or pneumatically with air, carbon dioxide, or nitrogen.

LockStroke Rescue Strut System

The Paratech LockStroke Struts are comprised of a 2½” diameter grooved solid aluminum movable shaft that extends out of a 3” diameter aluminum tube. LockStroke Struts have a ball bearing filled collar that locks automatically when the shaft extends. Activated either manually or pneumatically with air, carbon dioxide, or nitrogen, LockStroke Struts always auto-lock in their extended position. LockStroke Struts are especially useful in trench scenarios, allowing rescuers to lock the strut after pressurization without needing any rescuer intervention.

LongShore Rescue Strut System

The Paratech LongShore Struts are comprised of a 3” diameter threaded aluminum movable shaft that extends out of a 3½” diameter aluminum tube. The square thread allows full surface contact of the shaft through the collar and the collar full surface contact on the tube to transfer the load directly to the ground. LongShore Struts can be extended manually or pneumatically with air, carbon dioxide, or nitrogen. LongShore rescue struts are the perfect choice for exceptionally heavy loads or longer length shores.

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Trench Shoring

Technical Specs

AcmeThread Struts

  • 3″ (7,62 cm) diameter aluminum alloy tube with aluminum alloy movable shaft
  • Locking collar on a square thread for infinite adjustment and full surface contact of the shaft through the collar into the tube.
  • Threaded shaft and collar always default to a locked position ensuring load support is always maintained regardless of user intervention
  • Lightly textured knurled locking collar for easy grip
  • Easy tool-less screw shaft removal for easy field cleaning and repair
  • Hard-coat anodized for protection and longevity
  • Extendable by pneumatic controls
  • All pneumatic fittings made of non-sparking corrosion-resistant brass
  • Large brightly colored labeling system denoting strut size
  • Simple visual representation of strut extension lengths to assist rescuers in gauging how much extension remains when in use.
AcmeThread Rescue Struts
Part No. Description
22-796212 AcmeThread Strut 12-15 in / 31-38 cm
22-796206 AcmeThread Strut 19-25 in / 48-64 cm
22-796200 AcmeThread Strut 25-36 in / 64-91 cm
22-796202 AcmeThread Strut 37-58 in / 94-147 cm
22-796204 AcmeThread Strut 56-88 in / 142-224 cm
AcmeThread Rescue Strut Extensions
Part No. Description
22-796035 Strut Converter
22-796017 Strut Extension 6 in / 15 cm
22-796012 Strut Extension 12 in / 30 cm
22-796024 Strut Extension 24 in / 61 cm
22-796036 Strut Extension 36 in / 91 cm

AcmeThread Rescue Struts
LENGTH Working Load Chart at Following Safety Factors
Feet (Meters) 2:1 lb. kg. 3:1 lb. kg. 4:1 lb. kg.
2 ft (0.6m) 43,500 19,731 29,000 13,154 21,750 9,866
4 ft (1.2m) 40,000 18,144 26,667 12,096 20,000 9,072
6 ft (1.8m) 28,250 12,814 18,830 8,541 14,125 6,407
8 ft (2.4m) 24,050 10,909 16,030 7,271 12,025 5,455
10 ft (3.0m) 10,725 4,865 7,150 3,243 5,360 2,431
12 ft (3.6m) 7,660 3,475 5,000 2,313 3,830 1,737

 

LongShore Struts

  • 3.5″ (8,89 cm) diameter aluminum alloy tube with aluminum alloy movable shaft
  • Locking collar on square thread for infinite adjustment and full surface contact of the shaft through the collar into the tube.
  • Threaded shaft and collar always default to the locked position ensuring load support is always maintained regardless of user intervention
  • Lightly textured knurled locking collar for easy grip
  • Easy tool-less screw shaft removal for easy field cleaning and repair
  • Hard-coat anodized for protection and longevity
  • Extendable by pneumatic controls
  • All pneumatic fittings made of non-sparking corrosion-resistant brass
  • Large brightly colored labeling system denoting strut size
  • Simple visual representation of strut extension lengths to assist rescuers in gauging how much extension remains when in use.
LongShore Rescue Struts
Part No. Description
22-796710 LongShore Strut 203 26-36 in / 66-91 cm
22-796720 LongShore Strut 304 36-50 in / 91-127 cm
22-796730 LongShore Strut 406 48-73 in / 122-185 cm
22-796360 LongShore Strut 610 72-116 in / 183-295 cm
22-796390 LongShore Strut 1016 114-198 in / 290-503 cm
LongShore Extensions
Part No. Description
22-796037 LongShore  Strut Converter
22-796341 LongShore Extension 135 12 in / 30.5 cm
22-796342 LongShore Extension 235 24 in / 61 cm
22-796356 LongShore Extension 435 48 in / 122 cm
22-796376 LongShore Extension 635 67 in / 170 cm

 

LongShore Rescue Struts
LENGTH Working Load Chart at Following Safety Factors
Feet (Meters) 2:1 lb. kg. 3:1 lb. kg. 4:1 lb. kg.
2 ft  (0.6m) 44,000 19,958 29,333 13,305 22,000 9,980
3 ft  (0.9m) 44,000 19,958 29,333 13,305 22,000 9,980
4 ft  (1.2m) 44,000 19,958 29,333 13,305 22,000 9,980
5 ft  (1.5m) 44,000 19,958 29,333 13,305 22,000 9,980
6 ft  (1.8m) 44,000 19,958 29,333 13,305 22,000 9,980
7 ft  (2.1m) 44,000 19,958 29,333 13,305 22,000 9,980
8 ft  (2.4m) 40,000 18,144 26,666 12,095 20,000 9,072
9 ft  (2.7m) 32,000 14,515 21,333 9,676 16,000 7,257
10 ft (3.0m) 24,000 10,886 16,000 7,257 12,000 5,443
11 ft (3.3m) 22,000 9,979 14,667 6,653 11,000 4,990
12 ft (3.6m) 20,000 9,072 13,333 6,047 10,000 4,536
13 ft (3.9m) 14,000 6,350 9,332 4,233 7,000 3,175
14 ft (4.2m) 12,000 5,443 8,000 3,629 6,000 2,722
15 ft (4.5m) 9,000 4,082 6,000 2,722 4,500 2,041
16 ft (4.8m) 6,000 2,722 4,000 1,814 3,000 1,361

 

LockStroke Rescue Struts

  • 3″ (7,62 cm) diameter aluminum alloy tube with aluminum alloy movable shaft
  • Auto-Locking collar on scalloped aluminum alloy shaft for full surface contact of the shaft through the collar into the tube.
  • Scalloped shaft and collar auto-locks on extension ensuring load support is always maintained regardless of user intervention.
  • Lightly textured knurled locking collar for easy grip
  • Hard-coat anodized for protection and longevity
  • Extendable by pneumatic controls
  • All pneumatic fittings made of non-sparking corrosion-resistant brass
  • Large brightly colored labeling system denoting strut size
  • Simple visual representation of strut extension lengths to assist rescuers in gauging how much extension remains when in use.
LockStroke Rescue Struts
Part No. Description
22-796006 LockStroke Strut 19-25 in / 48-64 cm
22-796000 LockStroke Strut 25-36 in / 64-91 cm
22-796002 LockStroke Strut 36-58 in / 94-147 cm
22-796004 LockStroke Strut 55-88 in / 142-224 cm

LockStroke Rescue Strut Extensions
Part No. Description
22-796035 Strut Converter
22-796017 Strut Extension 6 in / 15 cm
22-796012 Strut Extension 12 in / 30 cm
22-796024 Strut Extension 24 in / 61 cm
22-796036 Strut Extension 36 in / 91 cm

 

LockStroke Rescue Struts

LENGTH Working Load Chart at Following Safety Factors
Feet (Meters) 2:1 lb. kg. 3:1 lb. kg. 4:1 lb. kg.
2 ft (0.6m) 43,500 19,731 29,000 13,154 21,750 9,866
4 ft (1.2m) 40,000 18,144 26,667 12,096 20,000 9,072
6 ft (1.8m) 28,250 12,814 18,830 8,541 14,125 6,407
8 ft (2.4m) 24,050 10,909 16,030 7,271 12,025 5,455
10 ft (3.0m) 10,725 4,865 7,150 3,243 5,360 2,431
12 ft (3.6m) 7,660 3,475 5,000 2,313 3,830 1,737

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