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3222325131
Epiroc
3222325131
Hello, Mine Owners and Head Mechanics! I am the supplier who patrols the mines daily, helping everyone solve problems related to "broken arms and legs." Today, we must seriously discuss the Mining Machinery Pin—it may look like just a steel rod, but it is the "joint" of your equipment!
In mining, our machines chew through hard rock all day, enduring massive vibration and heavy loads. The pin location suffers from constant shear forces and impacts. Using substandard pins is a real disaster: they can snap mid-operation, dropping a drill arm onto the ground. The repair cost would buy you hundreds of quality pins! Many cheap pins on the market are cut from "drawn steel"; they retain internal stresses, lack heat treatment, and bend or break within days. Our product refuses to be that kind of junk. Made entirely from high-strength alloy steel forging with a surface coated in hard chrome, choosing us means equipping your equipment with "diamond legs" for peace of mind while working.
Forging Process: No "Brittle Bones":
We don't play games. Ordinary pins are cut from round bars; their internal grain flow is severed, creating weak points prone to breaking. Our pins are integrally forged. Like traditional blacksmithing, it’s a process of repeated hammering that densifies the internal metal structure, providing exceptional toughness. Under dozens of tons of impact force, it will bend but not break, giving you time for emergency repairs rather than causing sudden, catastrophic failure.
Hard Chrome Coating: Wear Resistance is King:
What is a pin most afraid of? Wear! Once it wears down, the boom gets sloppy; once the clearance is too large, breakage is imminent. Our pins feature precision hard chrome electroplating. This chromium layer acts like a "diamond armor" for the pin—extremely hard and highly wear-resistant. Even in sandy, gritty conditions with insufficient greasing, it holds up, refusing to shrink in diameter easily.
Precision Machining: A Perfect Fit:
We maintain extremely tight dimensional tolerances. The diameter and length are exact. When installed, it fits snug where it should and moves freely where it should. The fit-up clearance is perfect—ensuring flexible boom movement without concentrating impact loads due to excessive play. That is the mark of a quality pin!
Designed for "Punishment":
Mining environments are harsh—sand, rainwater, emulsions, you name it. Our pins are made from corrosion-resistant materials with strong coating adhesion. Whether for drill arm connections, cylinder hinges, or swing mechanism positioning, it performs steadily, keeping your equipment in top condition.
Parameter | Specification |
|---|---|
Product Name | High-Strength Linkage Pin / Hinge Pin |
Core Material | 42CrMo / 40Cr High-Strength Alloy Steel |
Surface Treatment | Hard Chrome Plating / Quenched Black Oxide |
Key Properties | Shear Resistant, Impact Resistant, High Wear Resistance, Corrosion Resistant |
Applicable Locations | Drill Arm Connections, Cylinder Brackets, Swing Mechanisms, Linkages |
Mining Drills: Connecting pins for drill arms and feed beams, hinge pins for pitch cylinders.
Excavators: Connection shafts for booms and arms, pins for bucket cylinders.
Loaders: Pins connecting booms to frames, pins for rocker arms and buckets.
Crushing Equipment: Toggle plate pins for jaw crushers.
Full Range, Precise Models: Whether you run Atlas Copco, Sandvik, or domestic drills and excavators, we have the corresponding ready-made models. Just measure the ID, OD, and length, or provide the equipment model, and we will match it immediately.
High Hardness, Long Life: We guarantee hardness compliance. We spot-check every batch; we wouldn't dare ship it if the hardness wasn't up to standard. Use our pins, grease them diligently, and they will last 2-3 years easily.
Fast Shipping, No Delays: For urgent parts like these, we keep them in stock. Place your order, and we pack and ship immediately. We won't let a single pin delay your production schedule.
A Quick Tip for the Mechanics:
Brothers, when replacing the pin, remember to grind off any burrs and rust from the pin hole. If the hole is oval, ream it or add a bushing—don't force it in. When installing, fill it with grease; don't skimp on lube. In our line of work, safety is number one. With the pin installed properly and the equipment stable, you can go home to your family with peace of mind!
