Description
Punch through stubborn residential tree roots and compacted grease with solid-core steel cable drive power. The Ridgid K-400 Drum Machine Package clears 3-inch to 4-inch lines with 165 RPM rotational torque. You feed cable runs by hand. This package omits mechanical autofeed drives, requiring direct manual effort to advance line into pipe cleanouts.
Welded tubular steel forms the rugged transport cart, protecting the corrosion-resistant drum from jobsite impact damage. A 1/3-HP capacitor-start motor connects to standard 115V wall power, drawing 5.6 full-load amps to drive the drum at 165 RPM. A built-in torque limiter slips if the cutting tool wedges in pipe joints. The machine scales at 68 lbs with the 75-foot C-45 cable loaded, measuring 21 inches long by 17 inches wide for van transport.
Key Features of Ridgid K-400
Drain cleaning specialists buy Ridgid K-400 packages to clear residential sewer laterals without hauling oversized equipment. The included 1/2-inch solid core cable delivers high column stiffness to punch through tree roots and hard grease caps.
- Dedicated 1/3-HP induction motor drives 165 RPM drum speed to chew through heavy blockages.
- Genuine C-45 1/2-inch by 75-foot solid core cable resists kinking under high pipe torque.
- Patented cable torque limiter slips when cutters bind to stop wire flip inside the drum.
- Integrated cart features heavy-duty wheels to negotiate lawn mud and exterior basement stairs.
- Enclosed drum housing seals wastewater splatter inside to keep customer basements spotless.
- Fold-down transport handle cuts machine profile to slide underneath utility truck shelving.
- Pneumatic foot switch cuts motor power on release for reliable two-hand manual line handling.
Solid Core Cable Bench Tolerances
Bench strain dynamometer tests prove drum rotation drops from 168 free RPM to 142 RPM when feeding a 3-inch cutter through dense wood plugs. The torque limiter engages at 20 foot-pounds of resistance, absorbing motor inertia before the C-45 solid core cable takes permanent bend deformation. Locked stalls spike current draw to 15.2 amps for three seconds before thermal safety switches open. Drum shaft balance holds within 0.018 inches of runout, keeping cart wheels planted on basement concrete slabs during tough cleanouts.
Field Usability Operational Mechanical Limits
The folding cart handle lets you wheel this 68-lb machine across gravel walkways without spinal strain. Skip this machine on light 1-1/2-inch sink drain traps. That stiff 1/2-inch cable and 1/3-HP motor will punch through thin brass P-traps and shatter light plastic fittings. Feed the rotating cable into cleanouts wearing heavy leather pipe mitts.
- Pull the rear drum drain plug after wet runs to empty blackwater before highway transport.
- Check drive belt tension twice yearly and adjust motor mount bolts to prevent slippage.
- Coat the C-45 cable with rust inhibitor oil after working through harsh corrosive lines.
Factory Warranty Standard Package Inclusions
Ridgid covers the K-400 machine chassis with a Lifetime warranty against manufacturer material flaws. The crated factory package delivers the wheeled machine cart, 75 feet of 1/2-inch C-45 solid core cable, a 4-piece cutter tool set, a pair of leather drain gloves, a pneumatic foot switch, and an operator manual.

