Hapman Chain Down: Seized Pins Won't Press Out
Hapman chain-driven equipment stopped by frozen chain pins.
Why Chain Pins Seize
Production stalled, line down from stuck pins that won't move.
Torch risks damage and sparks in tight field conditions.
Corrosion, wear, and contamination block pin removal under load.
Why This Happens
Corrosion builds between pin and sidebar, locking movement. Wear and contamination pack tolerances, increasing friction. Repeated load cycling and thermal effects seize pins solid, halting chain drive.
Why Operators Choose Kingpin Breaker
No torch, no heat damage
Controlled hydraulic force extraction
Safer removal in confined spaces
Cuts downtime on urgent repairs
Portable for immediate field use
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
Chain jammed mid-shift, production halted overnight
Pin frozen after weeks of continuous run
Contamination packs pin during wet material handling
Wear seizes pin during scheduled chain inspection
Load stress locks pin after overload incident
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
Kingpin Breaker is an aftermarket tool compatible with chain systems used on Hapman equipment. Not affiliated with Hapman