SUHNER LLC 4-2 Pneumatic Extended Spindle Straight Grinder

Description LLC 4-2 — Pneumatic Extended Spindle Straight Grinder Extended-spindle, low-speed pneumatic straight grinder with governor control, resilient bearing and flexible exhaust hose — extremely quiet, portable and ergonomically shaped for precise finishing with non-woven products and polishing discs in hard-to-reach areas. Key Benefits Extended spindle for access to deep or recessed features. Low-speed 4,600 min⁻¹ operation with high torque for polishing and non-woven finishing. Governor control keeps speed constant under load and reduces air consumption. Resilient bearing minimizes vibration and increases longevity. Flexible exhaust hose & rear silencer for quiet, comfortable operation and clean work environment. Ergonomic Suhner grip for fatigue-free, portable use. Download spec sheet: LLC 4-2 Spec Sheet (PDF) Request Price Quote Applications Engineering, foundries, tool and patternmaking, aircraft construction, aerospace and automotive industries — ideal for low-speed polishing, blending and finishing with non-woven products and polishing discs, especially in confined or recessed areas. Technical Data Type: LLC 4-2 Idling speed: 4,600 min⁻¹ Air consumption (idling): 0.220 m³/min Power: 320 W Air supply hose Ø: 8 mm Collet: 6 mm ID-No.: 112 037 01 Mat.-No.: 100 035 594 Type: LLC 4-2 (1/4″ USA) Idling speed: 4,600 min⁻¹ Air consumption (idling): 0.220 m³/min Power: 320 W Air supply hose Ø: 8 mm Collet: 1/4 inch ID-No.: 112 037 02 Mat.-No.: 100 035 595 Standard Equipment 1 × Collet 1 × Open end wrenches SW 11 and SW 14 Supply and exhaust hose Lever valve Accessories & Replacement Parts ACCESSORIES Open end wrench SW 11, ID-No.: 037 857 01, Mat.-No.: 100 048 817 Open end wrench SW 14, ID-No.: 037 857 03, Mat.-No.: 100 048 819 Supply hose complete, ZS 8 mm × 2 m, ID-No.: 907 178 00, Mat.-No.: 100 010 247 Exhaust hose complete, AS kompl. DL B/C (1000 mm), ID-No.: 300 059 68, Mat.-No.: 100 026 406 Clamp for exhaust hose, ID-No.: 300 059 67, Mat.-No.: 100 026 405 COLLETS SPZ 3 mm, Bore: 3.0 mm (0.12 inch), ID-No.: 050 325 03, Mat.-No.: 100 047 503 SPZ 6 mm, Bore: 6.0 mm (0.24 inch), ID-No.: 050 325 01, Mat.-No.: 100 047 501 SPZ 8 mm, Bore: 8.0 mm (0.32 inch), ID-No.: 050 325 17, Mat.-No.: 100 047 509 SPZ 1/4″, Bore: 6.4 mm (1/4 inch), ID-No.: 050 325 02, Mat.-No.: 100 047 502 SPZ 1/8″, Bore: 3.175 mm (1/8 inch), ID-No.: 050 325 04, Mat.-No.: 100 047 504 Frequently Asked Questions 1. How does the LLC 4-2 perform in low-speed industrial grinding applications? The LLC 4-2 runs at 4,600 min⁻¹ with 320 W, delivering high torque for polishing and non-woven finishing. The extended spindle enables precision work in recessed or hard-to-reach areas. 2. How does governor control enhance performance? The governor maintains constant spindle speed under load, ensuring uniform surface finish and predictable material removal while reducing air consumption. 3. What airflow conditions are required for full performance? Supply clean, dry compressed air at ~0.220 m³/min through an 8 mm hose to maintain steady low-speed torque and optimal operation. 4. How do the resilient bearing and flexible exhaust hose improve durability and comfort? Resilient bearings reduce vibration and protect internal components; the flexible exhaust hose improves maneuverability and directs air away from the operator, increasing comfort. 5. What safety practices should be followed when using the LLC 4-2? Wear appropriate PPE, ensure the tool is firmly seated in the collet, and start the grinder away from the workpiece. Even at low RPM, high torque requires controlled handling to avoid surface gouging. Pricing, Availability & Lead Times For pricing and lead time, request a price quote or contact us.