Cleco 75RNL-3X-6 Pneumatic Stall Collar Reverse Angle Nutrunner | 75 Series | Lever Start | 120 RPM | 245 (ft-lbs) Max Torque

When a bolted joint needs controlled rundown in a tight assembly area, the Cleco 75RNL-3X-6 pneumatic stall collar reverse angle nutrunner gives technicians a compact right-angle fastening tool with the torque capacity needed for larger production fasteners. This 75 Series model uses a stall-style drive, meaning the tool runs until fastener resistance causes the motor to stall, giving operators a simple method of torque control by air pressure adjustment. With a 3/4" square drive, 120 RPM free speed, and 245 ft-lbs / 330 Nm maximum torque, it is suited for heavy machinery assembly, truck and trailer production, agricultural equipment work, and other applications where a straight tool cannot reach the joint.

The lever-start throttle supports deliberate operator control, while the collar reverse function allows quick directional change when backing off fasteners or repositioning during assembly. Its right-angle head helps reach around brackets, frames, flanges, and fixture obstructions, and the supplied torque reaction mounting plate for 75 Series tools helps manage reaction force generated at higher torque levels.

Type: Pneumatic Stall Collar Reverse Angle Nutrunner | Series: 75 Series | Start Type: Lever Start | Reverse Type: Collar Reverse | Drive Size: 3/4" Square Drive | Max Torque: 245 ft-lbs / 330 Nm | Free Speed: 120 RPM | Overall Length: 20.1" / 511 mm | Weight: 13.1 lbs / 6.0 kg | Head Height: 2.8" / 70 mm | Side to Center: 1.4" / 37 mm | Air Inlet: 1/2" NPT | Minimum Hose I.D.: 1/2" | Air Consumption: 75 SCFM

Features:

• Stall operation allows torque to be adjusted by controlling inlet air pressure, a practical setup for applications with varying torque rates.
• Right-angle head configuration reaches into confined fastening locations where pistol or inline nutrunners may not fit.
• Lever start gives the operator controlled tool activation during alignment, rundown, and final fastening.
• Collar reverse function lets the operator change direction when removing fasteners or repositioning during assembly.
• Heavy duty motor, gearing, and angle head construction supports high-torque fastening work in production and maintenance environments.
• Torque reaction mounting plate is supplied with 75 Series tools to help manage reaction force during higher-torque operation.
• Tool performance data is based on 6.2 bar inlet air pressure measured at the air inlet tube.

Made in USA:

Applications:

• Heavy truck and trailer assembly — tightening frame, suspension, bracket, and chassis fasteners where 3/4" square drive tooling is required.
• Agricultural and construction equipment production — running down larger bolts on machinery frames, housings, and subassemblies.
• Industrial manufacturing cells — controlled pneumatic fastening on joints where air-pressure-based stall torque control is acceptable.
• Plant maintenance and MRO — removing and reinstalling large fasteners around pumps, conveyors, fixtures, and machine guarding.
• Fixture-based assembly stations — reaching recessed or obstructed fastening points with a compact right-angle head.

FAQs:

• Q: What does a stall nutrunner do?
  A: A stall nutrunner runs until resistance in the fastener causes the air motor to stall. Torque is influenced by inlet air pressure, so the setup should be matched to the joint and verified according to your fastening process.
• Q: Is the 245 ft-lbs rating the working torque or maximum torque?
  A: The listed 245 ft-lbs / 330 Nm value is the maximum torque rating for this model. Use your application’s torque requirement and joint type to confirm whether this tool is the correct fit.
• Q: Why use an angle nutrunner instead of a straight nutrunner?
  A: The right-angle head helps reach fasteners located near frames, brackets, housings, or other obstructions. It is commonly used where a pistol or inline tool cannot align squarely with the fastener.
• Q: Does this tool require a torque reaction device?
  A: At this torque level, reaction force should be managed carefully. Cleco lists a torque reaction mounting plate as standard equipment for 75 Series tools.
• Q: What air supply is required?
  A: The available product data lists a 1/2" NPT air inlet, 1/2" minimum hose I.D., and 75 SCFM air consumption. Use a properly sized air line and FRL setup so the tool receives stable air pressure at the inlet.

Looking for more information about Cleco Pneumatic Nutrunner? Click here to view the Catalog

Need help selecting the correct Cleco Pneumatic Nutrunners for your application? Please call (800) 608-5210 or email info@intlairtool.com