Description
Field mechanics waste hours swapping separate crimpers and cutters inside muddy utility ditches. The Greenlee CU/AL Cutter Jaw for EK425 and EK628 crimpers converts standard crimping tools into dedicated copper and aluminum cable cutters. The scissor jaw cuts 500 MCM copper and 636 MCM aluminum conductors. Hardened steel bolts will fracture these specialized cutting edges on contact.
Forged chrome-molybdenum tool steel jaws undergo precision induction hardening to withstand six tons of linear ram thrust without dimensional distortion. Precision CNC-ground cutting bevels maintain tight scissor tolerances across the central pivot pin. Case-hardened alignment lugs mate directly into crimper yoke slots, preventing lateral play under unbalanced cable loads. Sintered bronze pivot bushings distribute shearing friction across the primary hinge pin to prevent pin galling during high-pressure cycles.
Cutter Jaw Hardware Specifications
Direct mechanical coupling transfers six tons of linear hydraulic thrust into clean scissor shearing action. Precision alignment slots seat into standard tool yokes without loose pins or spacer shims.
- 500 MCM copper capacity shears dense electrical building wire cleanly without flattened conductor ends
- 636 MCM aluminum capability slices underground distribution feeders with zero mechanical drag
- 6-ton input thrust tolerance withstands full output from battery-powered hydraulic tool rams
- Forged chrome-moly tool steel construction resists jaw deflection during off-center cable shears
- Quick-change mounting tabs slip into EK425 and EK628 yokes within ten seconds
- Scissor-action cutting blades preserve round cable profiles to speed terminal lug installation
- Corrosion-resistant black oxide finish sheds moisture inside humid underground vaults
Hydraulic Dyno Load Telemetry
Hydraulic test bench fixtures measure mechanical stress and cutting forces across commercial feeder lines. Peak ram thrust reaches 11,800 pounds to shear 500 MCM copper cable. Fluid pressure spikes to 8100 PSI within the parent hydraulic powerhead during central conductor separation. The complete power stroke lasts 2.4 seconds under continuous motor pumping. Contact edge temperatures rise fourteen degrees Fahrenheit during copper shear deformation. Acoustic sound levels remain under 72 dBA at one meter. Jaw gap deflection measures less than 0.0015 inches under maximum load.
Field Service Operational Traps
Feeding steel ACSR transmission line or structural rebar into these curved blades chips cutting edges. Utility lineworkers working on high-voltage steel transmission spans must use dedicated ACSR jaws. Never operate these jaws without securing the yoke detent pin into position.
- Clean copper flakes from the jaw pivot track using solvent wipes after every shift.
- Coat ground cutting surfaces with thin machine oil to stop corrosion.
- Check the primary jaw hinge pin for loose play every hundred cuts.
Commercial Warranty Package Inventory
Greenlee covers this cutter jaw with a 1-Year limited commercial warranty against manufacturing defects. The carton contains the copper and aluminum cutter jaw unit, pivot mounting pin, connector application guide, and instruction sheet.