The PneuTorque, distributed in Italy exclusively by UVIT, consists of a robust air motor driving a Norbar multiplier with three or more stages of epicyclic gearing.
Torque control is achieved through adjustment of the air pressure. An air pressure versus torque graph and a calibration certificate is supplied with each tool and allows specific torque values to be set. For more critical applications, PneuTorques can be fitted with a torque transducer and the precise torque output displayed. The tool can then be shut off at the desired torque either manually or automatically using suitable control circuitry.
Why use PneuTorque pneumatic torque tools?
Hand operated torque multipliers are ideal for low volume or intermittent use or when there is no power source available. However, for production lines or whenever a large number of bolts is involved, a powered multiplier will save a considerable amount of time.
PneuTorque operation is quiet – less than 84 dB(A) with absolutely no impacting. These two factors make PneuTorques comfortable for the operator to use, reducing fatigue and consequently increasing safety.
PneuTorques provide accurate torque control – on a given joint they will stall repeatably to within ±5% (PTS tools, ±3%). Using electronic shut off, this repeatability can be improved to ±2%.
Summary of PneuTorque advantages:
• Sound pressure level does not exceed 84 dB(A) with an uncertainty K = 3dB
• No impacting means less damage to the tool, socket and bolted assembly
• Less operator fatigue, results in increased safety
• Powerful – models available up to 300,000 N·m (220,000 lbf·ft)
• Repeatability of ±5% for accurate torque control (±3% for PTS range)
• A wide range of attachments and accessories make PneuTorques adaptable to many applications
PneuTorque applications
The smooth and continuous torque output of the PneuTorque® makes these tools suitable for a wide range of bolting and non-bolting applications.
Bolting
PneuTorques are ideally suited to tightening and untightening bolts of up to 150 mm diameter. The following is just a small selection of applications:
• Wheel nuts on trucks, buses and large machinery
• Structural steelwork
• High pressure joints e.g. Pipelines, boiler feed pumps and pressure vessels
• Engine head bolts
• Injector heads on plastic injection moulding machines
• Heat exchangers
• Heavy vehicle production eg. chassis and suspension bolts
Non-bolting
Whenever a high continuous torque is needed, PneuTorques can be used as the power source. Typical applications include:
• Valve Actuation and valve grinding
• Powering wagons and gantries
• Barring of large diesel engines (turning the crankshaft) during build
• Weld testing by applying test torques
• Roller adjustment in steel mills and paper mills
• Valving of gas bottles
Come and visit our stand at IVS 2022 – Stand 157 Hall B – (Bergamo – ITALY, 25-26 May 2022) to find out all the details on PneuTorque, or visit https://www.uvit.it/avvitatori-dinamometrici-professionali.