WBT Ultra-thin Hollow Hydraulic Torque Wrench

The WBT ultra-thin hollow hydraulic torque wrench extends the performance envelope of the WB series by delivering the same cassette-type hollow nut engagement in an even thinner overall profile, enabling access to bolted joints with the most severe space constraints. The ultra-thin form factor is specifically engineered for situations where standard hollow wrenches are too tall to fit between the nut face and adjacent structures — common in close-pitch bolt circles, compact machinery housings, and blind flange assemblies.

Maximum working pressure of 700 Bar and ±3% torque accuracy are maintained in this ultra-thin configuration, ensuring the WBT delivers the same precision and force capability as the full-profile WB in every application where it can be physically positioned. The 360°×180° swivel hose fitting and stop-pawl anti-back-rotation mechanism are standard, maintaining full operational flexibility and efficient torque delivery despite the reduced physical envelope.

High-strength aluminum-titanium alloy and alloy material construction provides the structural integrity needed to transmit maximum torque through the thinner cross-section, with CEJN quick-release hydraulic couplings ensuring reliable hose connections. The WBT is the preferred choice for wind turbine pitch system bolts, gearbox output shaft flanges, marine propulsion system connections, and other applications where the combination of high torque, tight access, and precision is required simultaneously. It complements the WB and WA in a complete torque wrench system that covers all space and configuration requirements.