Atlas Copco 8431-0269-49 LUM22-SR10 Inline Screwdriver

Atlas Copco 8431-0269-49 LUM22 SR10 is a straight, inline pneumatic screwdriver engineered for precise, repeatable torque in compact assemblies. It delivers a soft‑joint torque range of 3.5–10 Nm and a free speed of 700 rpm, with a 1/4" hex output (female) compatible with common bits, making it suited for small to mid‑size fastening tasks. The tool measures 260 mm in length and has a center‑to‑spindle distance of 22 mm, weighing 1.54 kg (about 3.4 lb). It uses a 1/4" air inlet and a recommended 8 mm hose, operating at up to 7 bar (100 psig) with an air consumption of approximately 15 cfm at free speed. A spring‑operated shut‑off clutch, a hallmark of the LUM family, provides controlled torque and clean shut‑off, while the unit complies with ISO 11148‑6 and carries EAC certification. Noise is 78 dB(A) and vibration remains below 2.5 m/s², aligning with standard handheld assembly safety expectations. The LUM22 SR10 features a trigger‑lever start, an output size of 1/4" and a straight model design, ensuring reliable performance in tight spaces where an inline driver is preferred. This combination of compact form, consistent torque, and Atlas Copco’s design for dynamic assembly environments makes it a dependable choice for operators seeking steady torque control in light‑to‑medium fastening applications within automation cells and small‑scale production lines.