Ingersoll Rand 41SD8LTQ4 Inline Pneumatic Air Screwdriver | 800 RPM | 120 (in-lbs) Torque Range | Stall Clutch

When assembly operations require higher screw-driving torque and a slower, controlled rundown speed, the Ingersoll Rand 41SD8LTQ4 Inline Pneumatic Air Screwdriver delivers an 800 RPM free speed and a 0–120 in-lbs (0–13.6 Nm) torque range for fastening applications with increased joint resistance. Part of the Ingersoll Rand 41 Series, this pneumatic screwdriver incorporates a stall clutch with a direct-drive mechanism, allowing the air motor to continue rotating until resistance from the fastener causes it to stall. This configuration is particularly useful for soft-pull applications, where torque resistance increases progressively as a screw engages the material and critical torque control is not required. Its 1/4-inch hex quick-change spindle accepts compatible screwdriver bits for convenient changes during repetitive assembly work.

As the highest-torque model among the 41SD inline stall screwdrivers listed in the manufacturer catalog, the 41SD8LTQ4 prioritizes fastening force over free-running speed. The 8.9-inch overall length, 2.3 lb weight, and inline body configuration allow operators to position the spindle directly along the fastener axis. Ingersoll Rand's Skinsulate housing provides a comfortable gripping surface that requires less force and pressure during operation, while lever-start actuation and push-button reverse simplify tool control. With 20 CFM air consumption at free speed and a 1/4-inch NPT air inlet, the screwdriver can be incorporated into a suitably sized compressed-air system serving production workstations, wood component assembly, and general manufacturing processes.

Type: Pneumatic Air Screwdriver | Series: 41 Series | Model: 41SD8LTQ4 | Configuration: Inline | Clutch Type: Stall / Direct Drive | Actuation: Lever Start | Torque Range: 0–120 in-lbs (0–13.6 Nm) | Free Speed: 800 RPM | Drive Size: 1/4" | Spindle Type: Hex Quick Change | Overall Length: 8.9" (226 mm) | Side to Center Distance: 0.8" (20 mm) | Weight: 2.3 lbs (approximately 1.0 kg) | Air Consumption at Free Speed: 20 CFM (565 L/min) | Air Inlet: 1/4" NPT | Minimum Hose Size: 5/16" (8 mm) | Sound Level at Free Speed: 78 dB(A)

Features:

• Stall-type direct-drive mechanism allows the motor to run until fastening resistance causes it to stall, providing consistent torque repeatability in suitable soft-pull applications.
• 800 RPM free speed provides a slower rundown rate for fastening operations where increased torque capacity is more important than maximum rotational speed.
• 0–120 in-lbs torque range offers the highest maximum torque capacity among the four 41SD inline stall screwdriver models listed in the manufacturer catalog.
• Skinsulate housing provides a comfortable grip surface, requiring less force and pressure during repeated tool operation.
• Inline construction supports direct spindle alignment with fasteners during straight-access assembly work.
• Lever-start actuation gives operators direct control over individual fastening cycles.
• Simple push-button reverse allows convenient changes in rotational direction for screw installation and removal.
• 1/4-inch hex quick-change spindle facilitates switching between compatible screwdriver bits without a conventional keyed chuck.

Made in USA:

Applications:

• Woodworking and furniture manufacturing – installing screws into wooden panels, frames, and structural furniture components where driving resistance increases during seating.
• Production assembly lines – repetitive fastening of components requiring greater torque capacity and a lower free-running speed.
• Self-tapping screw installation – driving suitable threaded fasteners into materials that develop resistance as threads are formed or engaged.
• Equipment and machinery assembly – securing compatible threaded components in noncritical fastening joints where a precision shut-off clutch is unnecessary.
• Industrial maintenance and repair – installing or removing threaded fasteners during suitable equipment servicing and workshop assembly operations.

FAQs:

• Q: How much torque does the Ingersoll Rand 41SD8LTQ4 produce?
  A: The screwdriver has a rated maximum stall torque of 120 in-lbs (13.6 Nm), making it the highest-torque 41SD inline stall model listed in the manufacturer catalog. Actual fastening torque varies with air pressure, fastener resistance, and joint conditions.
• Q: Why does the 41SD8LTQ4 operate at 800 RPM instead of a higher speed?
  A: The 41SD8LTQ4 uses a lower-speed configuration to provide increased torque capability. Its 800 RPM free speed is suited to applications where screw-driving resistance makes torque capacity more important than rapid rundown. The appropriate speed depends on the fastener, material, and assembly requirements.
• Q: Does the stall clutch automatically stop at a preset tightening torque?
  A: No. The motor continues driving until fastener resistance causes it to stall, rather than disengaging at an independently calibrated torque setting. For critical assemblies with defined torque tolerances, consider a suitable automatic shut-off clutch screwdriver.
• Q: What is the difference between the Ingersoll Rand 41SD8LTQ4 and 41SD10LTQ4?
  A: The 41SD8LTQ4 provides 120 in-lbs maximum torque at 800 RPM, while the 41SD10LTQ4 provides 90 in-lbs at 1,000 RPM. Choose the 41SD8LTQ4 when greater fastening resistance must be accommodated, or the 41SD10LTQ4 when faster screw rundown is preferred.
• Q: What compressed-air supply is required for the 41SD8LTQ4?
  A: The manufacturer specifies 20 CFM air consumption at free speed, a 1/4-inch NPT air inlet, and a minimum hose size of 5/16 inch. Compressor capacity and supply pressure should meet Ingersoll Rand's operating recommendations for the intended duty cycle.

Looking for more information about the Ingersoll Rand Air Screwdriver? Click here to view the Catalog

For help choosing the correct Ingersoll Rand Air Screwdrivers for your application, please call (800) 608-5210 or email info@intlairtool.com