hi torque tools
The Stealth series is the industry’s most advanced limited clearance hydraulic bolting system. The slim design fits where other tools will not and the dual piston power head provides unparalleled speed and power. Also compatible with the HYTORC Washer and HYTORC Nut, the Stealth series can conquer bolting applications from general maintenance to critical pathways.
hydraulic tool


For the highest level of safety on industrial bolting jobs, HYTORC recommends hands-free operation. The Stealth Lock-On adapter allows for hands-free usage with or without the HYTORC Washer.
multiple torque wrench
hydraulic torque tool


The patented design of the Stealth’s dual pistons gives more power and speed than any other limited clearance tool in the market.
industrial bolting technologies


The Stealth was the first industrial bolting system in the market to feature a continuous slim body design that fits in even the tightest confines.
hydraulic torque tools


  • Torque Charts Open or Close
  • Technical Data Open or Close



    TOOL MODEL Height (H) Width (W) Length (L) Radius (R) Weight Torque Range
    STEALTH - 2 4.21" 1.25" 5.53" 1.03" to 1.76" 4.00 Lbs. 278 - 1,869 ft-lbs
    STEALTH - 4 5.43" 1.66" 6.56" 1.33" to 2.32" 4.30 Lbs. 604 - 4020 ft-lbs
    STEALTH - 8 6.40" 2.18" 8.00" 1.77" to 2.89" 6.70 Lbs. 1,199 - 7,984 ft-lbs
    STEALTH - 14 7.94" 2.50" 9.35" 2.32" to 3.47" 10.40 Lbs. 2,105 - 14,255 ft-lbs
    STEALTH - 22 9.18" 2.91" 10.80" 2.62" to 3.87" 15.40 Lbs. 3,250 - 21,875 ft-lbs
    STEALTH - 36 10.81" 3.41" 12.71" 3.07" to 4.80" 24.10 Lbs. 4,917 - 34,722 ft-lbs


  • Troubleshooting Open or Close
    Prior to testing hydraulic torque wrenches. A visual inspection should be done. The visual inspection should include.
    1. Cracked, bent, or damaged couplers.
    2. Swivel Assembly
      • Cracked swivel block
      • Loose swivel assembly
      • Swivel post retaining ring is attached
    3. Loose end cap
    4. Cracked or damaged housing
    When testing hydraulic torque wrenches. Make sure the pump functions correctly, and is set to 10,000 PSI before the tool is connected. Connect the tool to the hose, and test the tool using the pump remote. ADVANCE and RETRACT the tool several times. Make sure the tool functions properly and the pump pressure builds 10,000 PSI / 700 BAR in the ADVANCE position.
    Tool does not ADVANCE or RETRACT. Check the following.
    1. Couplers are loose or damaged.
      • Tighten and/or replace couplers.
    2. Ratchet
      • Replace ratchet if the teeth are stripped, missing or damaged.
    3. Drive pawl Assembly
      • Check drive pawl springs for damage.
      • Inspect drive pawl for damage.
    Tool does not build 10,000 PSI in the ADVANCE position, and there are no external leaks. The tool has an internal leak. Internal leaks are located in two areas, the swivel assembly and the cylinder.
    1. Swivel Assembly - Tool will not build over 2000 PSI
      • Replace damaged swivel seals.
      • Inspect swivel post for wear and/or damage.
      • Inspect swivel block for damage.
    2. Cylinder - Tool will not build over 6000 to 7000 PSI
      • Check the piston and cylinder O-ring for wear and/or damage.
      • Inspect the piston assembly for wear and /or damage.
      • Inspect cylinder wall for excessive wear.
    Tool has an external leak.
    1. Swivel Assembly
      • Bent or broken couplers.
      • Worn and/or damaged seals.
      • Cracked or damaged swivel block.
      • Damaged swivel post.
    2. Cylinder
      • Worn and/or damaged seals.
      • Loose end cap.
      • Worn and /or damaged piston assembly.
      • Damaged housing assembly.
    The tool will not build over 2000 PSI under load
    1. Bottom piston check valve
      • Debris in check valve causing the valve to stay open.
      • Issue with piston valve seat.
  • Operations Manual Open or Close


Reaction Pad Reaction Pad for all sizes of low clearance tools
Alco Arm Alco Reaction Arm for Low Clearance Hydraulic Tools
Spanners AB Open and 12 point spanners.
Hex Reducers and Socket Adaptors Square and hex adapters - ½" to 3½" standard and custom made.
HYTORC Washer Reaction Plate Reaction Plate for inverted and hands free applications.
ANSI Flange time calculator and Multi-Bolt calculator.
Determine just how much efficiency gains you can make by using HYTORC Parallel Joint Closure.