Break Seized Chain Pins Fast — No Torches. No Hammering.
Seized chain pins in mining apron feeders can shut your line down instantly.
Why Pins Seize in Mining Apron Feeders
Heat, dust, corrosion, abrasion, and thermal cycling lock pins solid under load. Downtime climbs fast as a seized chain pin halts the apron feeder. Crews lose hours fighting frozen hardware while material backs up and production stops.
Why This Failure Happens
High-load apron feeder chains like WH132, WDH159, and ER864 pack fines into the bushing gap, driving debris into metal surfaces. Heat, shock loads, and corrosion gall the pin until it cold-welds inside the link. Once seized, the chain won’t articulate, forcing immediate shutdown and manual extraction.
Why Operators Choose Kingpin Breaker
Faster hydraulic force blasts out seized pins instantly
Zero-torch extraction eliminates heat and fire risk
Precision alignment protects links and keeps geometry true
Field-portable unit reaches tight apron feeder access points
Compatible with WH132, WDH159, ER864 chain sizes
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 seized after thermal cycling in hot ore service
WDH159 link frozen from corrosion and bushing pack-out
ER864 pin stuck mid-shift, stopping apron feeder discharge
Chain joint won’t articulate after dust infiltration and galling
Frozen master pin preventing chain tensioning during shutdown
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