Break Seized Chain Pins Fast — No Torches. No Hammering.
Impact-Seized Pins Are Locking Your Aggregate Drag Conveyor Out of Production.
Why Pins Seize in Aggregate Drags
Impact loads, crushed rock fines, and thermal cycling drive debris into link joints. Heat, dust, and abrasion weld the pin in place and escalate a simple jam into a full-blown seized failure.
Downtime spikes fast when an impact-loaded chain pin won’t move. Abrasive fines and repeated shock loads pack the joint tight. The seized pin stops the drag immediately and forces an urgent teardown.
Why This Failure Happens
WH132, WDH159, and ER864 drag chains absorb repeated impact as aggregate drops, forcing fines into the bushing and galling the pin. Abrasion and thermal cycling lock the pin as metal expands, grabs, and cools unevenly. Once the joint is packed and galled, hydraulic force is the only practical way to break it loose without damage.
Why Operators Choose Kingpin Breaker
Cuts downtime immediately with fast hydraulic force
Avoids torches and grinding in dusty aggregate environments
Aligns perfectly to prevent side-loading on heavy drag chains
Portable setup reaches cramped conveyor pits fast
Works reliably on WH132, WDH159, ER864 under real impact loads
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 solid after rock-drop impact in drag boot section
WDH159 pin frozen from abrasive fines packing inside bushing
ER864 pin won’t press out after repeated shock loading on incline drag
Headshaft jam from seized connector pin after thermal expansion cycle
Flight jam caused by seized inner pin during overloaded start-up
Request a Quote
Seized pin? Not for long.
Kingpin Breaker
Make stubborn pins tap out.
Contact
Email: cooper@kingpinbreaker.com
Phone: (262) 781-3870
Wisconsin, USA