Break Seized Chain Pins Fast — No Torches. No Hammering.
Seized chain pins in steel mill drags stop production instantly and escalate every minute of downtime.
Why Pins Seize in Steel Mills
High heat, scale, and abrasive contamination pack tight around chain joints. Thermal cycling locks the pin in place and turns a simple changeout into a complete shutdown.
Why This Failure Happens
WH132, WDH159, and ER864 pins seize when heat and scale fuse link bores, creating metal-on-metal galling. Dust and fines pack into the joint, jamming the pin under heavy conveyor load. Repeated thermal cycling locks the assembly so tight that conventional methods can’t move the pin.

Why Operators Choose Kingpin Breaker
Faster hydraulic force clears seized pins immediately
Zero-torch process eliminates hot-work delays
Precision alignment prevents side-load damage
Field-portable setup cuts repair time
Works on WH132, WDH159, and ER864 chains
Built to Perform.
PIN LENGTH RANGE
2.25" – 7.8"
INCLUDES MULTI-CHAIN KIT
(2) Pin Cavities, (4) Pushpins, (5) Spacers
DIMENSIONS (Tool Body)
16.5" × 2.5" × 16"
PIN DIAMETER
1.125" and below
HYDRAULIC CYLINDER
15-ton Hand Pump (foot pedal available)
WEIGHT
28 lbs.
Why Maintenance Teams Trust Kingpin Breaker
Fast. Safe. Simple. Versatile.
Fast
Break even the most
stubborn chains in about
two minutes.
Safe
Reduce hand and back injuries — no hammers, torches, or channel locks.
Simple
Lightweight, intuitive design. Set up and service chains immediately.
Versatile
One tool for almost all chain sizes — fits in tight spaces with ease.
How it Works
From Setup to Break in Minutes.

Real Breakdown Scenarios We Fix
WH132 pin frozen in furnace drag after thermal cycling
WDH159 link seized from scale pack-out under billet load
ER864 apron feeder jammed after heat distortion in the pit
Chain pin won’t press out after scale intrusion on reheat line
Stuck drag chain pin delaying caster return-to-service
Request a Quote
Seized pin? Not for long.
Kingpin Breaker
Make stubborn pins tap out.
Contact
Email: cooper@kingpinbreaker.com
Phone: (262) 781-3870
Location
Wisconsin, USA
