Greenlee 7 Ton Battery Hydraulic Knockout Driver

Description

High-pressure micro-hydraulic pumps advance a hardened draw stud inside the Greenlee 7 Ton Knockout Driver to punch clean conduit holes through steel enclosures. This cordless punch tool punches up to four-inch holes in mild steel. It runs on 18V lithium-ion batteries, requiring compatible draw studs and punch dies to complete electrical panel knockouts.

High-strength forged alloy steel constructs the 360-degree rotating hydraulic punch head and cylinder collar, mounted to a glass-reinforced composite inline tool body. An 18V electric motor drives an internal micro-hydraulic pump, producing seven tons of punching force at 9,000 PSI. Total tool weight measures 5.8 lbs with battery installed. The compact inline frame measures 14.5 inches long, 3.25 inches wide, and 4.75 inches tall.

Key Features of Greenlee LS50L11A

Electricians buy Greenlee LS50L11A knockout drivers to punch conduit holes in panels and gutters without manual wrench pumping. Tool pricing delivers seven tons of hydraulic punch force, 18V battery power, and 360-degree head rotation in a cordless kit.

• High-pressure micro-hydraulic pumps develop seven tons of force to punch up to four-inch holes in mild steel.
• Compact inline body profiles slip through tight wireways, electrical gutters, and crowded switchboards.
• Full 360-degree rotating punch heads provide flexible tool positioning inside cramped electrical cabinets.
• Auto-retract pressure sensors stop ram advance and retract the draw stud automatically once punches pop through steel.
• Threaded draw studs accept standard Greenlee Slug-Buster and self-centering Speed Punch die sets.
• Included 18V lithium-ion battery packs punch over one hundred holes per charge in twelve-gauge commercial steel.
• Integrated LED work lights illuminate dark electrical meter enclosures and transformer panels during punch setups.

Hydraulic Punching Force Bench Metrics

Calibrated load cell bench testing confirms the hydraulic ram developing a true 7.2 tons of punching force at 9,000 PSI peak hydraulic pressure. Complete punch cycles take 3.8 seconds on two-inch conduit holes through ten-gauge mild carbon steel. The 18V motor draws 16.5 running amps from the battery pack during peak metal rupture. Hydraulic auto-retract valves open within 0.05 seconds of hole punch-through, preventing draw stud stretching. Punch cycles show zero burrs or metal tearing around clean hole margins.

Panel Punching Usability Realities Maintenance

Holding this 5.8 lb inline tool takes one hand, threading the draw stud into punch dies inside tight junction boxes with ease. The trigger provides instant ram advance with automatic retraction upon punch-through. Do not buy this 7-ton punch tool for hardened plate armor steel, structural I-beams, or blind hole drilling.

• Wipe metal shavings and cutting oil off the draw stud threads after each punching shift.
• Inspect draw studs and punch dies for thread galling or cutting edge chipping each week.
• Check hydraulic cylinder seals for weeping oil around the ram collar twice per year.

Factory Warranty Manifest Inclusions

Greenlee covers this battery-powered knockout driver with a 7-Year limited manufacturer warranty on hydraulic tool components and motor. The heavy-duty carrying case delivers the LS50L driver, two 18V lithium-ion batteries, 120V battery charger, draw studs, spacers, and an illustrated electrical operations manual.