STEALTH™ Twin-Speed, Limited-Clearance Bolting

The HYTORC Stealth is the world’s fastest limited clearance torque/tension machine.

HYTORC has listened to our customer’s requests for a true, all application fit and multifunctional low profile machine. Management threw a serious challenge to our engineering team requesting a completely new (from the ground up) machine that could be incorporated and utilized with our stretch-to-load bolting technologies. This was not to be just a re-engineered version of our famous XLCT series machine but a unique machine capable of much, much more.

Only the Stealth can apply torque on one job and tension on another by means of the HYTORC Washer™ or The HYTORC Nut™. It is designed to be the most versatile in the market. A simple button allows for click-in connection of hex links and other accessories and makes the tool FME compliant.

The STEALTH is equipped with a Dual Piston System which provides tremendous bolting speeds and also allows the hex link and the tool to remain the same uniform thickness. This slim, ergonomic design of the STEALTH is patented and allows access to the most confined spaces where other tooling simply will not fit.

The patented Click-In Hex Link Retain System is an industry first.

By eliminating the troublesome pins and screws used by other manufacturers to retain a hex link, the STEALTH is the first low profile machine to be certified as FME compliant. Changing out hex links is hassle-free by simply pushing a pin on the back of the tool! The STEALTH incorporates a unique 360 x 220 degree Flat-Fit uniswivel assembly. This patented assembly provides incredible freedom and confidence when using the machine in tight, headroom restricted situations.

The STEALTH advantage:

Our latest generation of torque/tension compatible low profile bolting machines streamlines and simplifies your bolting requirements by providing coverage for both your torque and tension applications with the same system!

Conventional torque:

The STEALTH is the logical choice for restricted headroom as well as applications with non standard or extra length studs. Hex links are available in imperial, metric, 6 point and 12 point configurations in heavy hex/mm sizes. Provides unmatched performance in six (6) tool sizes ranging from 278 ft. lbs. minimum to 34,700 ft. lbs. maximum torque!

Stretch-to-load compatibility:

The STEALTH stands alone as the only low profile machine capable of conventional torque, reaction free torque (with the HYTORC Washer™) and pure axial bolt tension (with The HYTORC Nut™ mechanical tension nut). Reaction free and back up wrench free torque is made possible by installing the innovative HYTORC Washer™ under your existing heavy hex nut. Bolt load accuracy is guaranteed to ±5% representing a major improvement over conventional torque methods. For tension applications where accurate bolt load is critical, The HYTORC Nut™ mechanical tension nut is without question a viable and practical alternative to antiquated and questionable hydraulic tension or jack screw tension systems. When used in conjunction with The HYTORC Nut™, the STEALTH provides pure axial bolt stretch accurate to a guaranteed ±5%… without the use of bridges and pullers and without the complicated procedures of jack screw tensioners!

STEALTH Features

  • Twin-Speed Automatic
  • Anti Backlash Pawl
  • All Application-Fit
  • 6 & 12 Point Ratchet
  • Ergonomic Design
  • Highest Run-Down Speed
  • 360×220 Degree, Flat-Fit Swivel
  • Pin & Screw-Free Click-In Cassettes
  • Light-Weight, Super-Alloy Use
  • Upgradeable for Stretch-to-Load!
L H W Stud From/To Radius From/To Torque (Min) Torque (Max)
Model Inches/mm Ft. Lbs./Nm
ST-2 5.53/140.5 4.21/106.9 1.25/31.8 3/4 to 1-3/8/19 to 35 1.03 to 1.76/26.1 to 44.6 278/377 1,869/2,534
ST-4 6.56/167.1 5.43/138.0 1.66/42.2 1-3/8 to 1-3/4/35 to 44 1.32 to 2.32/33.6 to 58.9 604/819 4,020/5,450
ST-8 8.00/203.2 6.40/162.6 2.10/53.3 1-3/4 to 2-1/2/44 to 64 1.77 to 2.89/44.88 to 73.4 1,199/1,625 7,984/10,823
ST-14 9.35/237.4 7.94/201.7 2.50/63.5 2 to 2-3/4/50 to 70 2.33 to 3.74/59.2 to 88.2 2,105/2,864 14,255/19,324
ST-22 10.80/274.3 9.18/233.2 2.91/73.9 2-3/4 to 3-3/4/70 to 95 2.62 to 3.87/66.6 to 98.4 3,250/4,406 21,875/29,654
ST-36 12.71/322.8 10.78/274.6 3.41/86.6 3-3/4 to 5-0/95 to 127 3.07 to 5.46/77.9 to 138.6 4,917/6,665 34,722/47,069