EN26 Machined Hammer Pins for Shredder, Crusher, Mining Equipment

Short Description:

If you are sourcing robust, durable connecting pins for scrap metal shredders, mining crushers, hammer mills, or hydraulic breakers, you know how quickly inferior pins fail under high-stress conditions. Our custom-machined EN26 hammer pins are engineered specifically for these high-load, high-impact environments. Metal recycling facilities, quarry operators, and construction teams choose our pins to replace standard steel components that are prone to cracking or bending under repeated impact.

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Product Detail

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We manufacture each hammer pin using BS EN26 (826M40) nickel-chromium-molybdenum forged alloy steel. All products undergo comprehensive quench-and-temper heat treatment to meet "Condition W" mechanical property standards, offering a combination of high tensile strength and excellent low-temperature impact resistance. With a core hardness of HB 311–375 and a minimum yield strength (proof stress) of 820 MPa, they maintain resistance to deformation even during continuous, heavy-duty scrap metal processing. We also offer an optional gas nitriding surface treatment that boosts surface hardness to HRC 58–60, minimizing wear when handling sharp or highly abrasive scrap metal.

All pins are precision machined according to your exact engineering drawings. Design details such as chamfered ends, metric internal threads, and relief grooves ensure smooth, unobstructed installation of shredder hammers onto the rotor assembly. We support OEM and ODM requirements, allowing you to customize the outer diameter, total length, and thread specifications to perfectly fit your equipment model. Every order includes a detailed Mill Test Certificate clearly documenting material composition and mechanical property test results.
Our factory controls the entire production process—from the forging and turning of raw steel to heat treatment and final hardness and dimensional inspections—maintaining strict tolerances within the 0.01 to 0.05 mm range. These hammer pins are suitable for scrap metal shredders, rock crushing equipment, waste processing machinery, and heavy-duty machinery in cement plants. Switching to our EN26 alloy pins will reduce the frequency of spare part replacements and enhance the long-term operational reliability of the equipment.

Manufacturing Process Flow
Iron Ore & Alloy Smelting → Steel Ingot Casting → Annealing → Heating → Forging to Form Stock → Secondary Annealing → Rough Turning → Quenching & Tempering (Heat Treatment) → Precision Machining (End Chamfering & Internal Thread Machining) → Final Inspection & Quality Control → Warehousing (Approved Products Storage)

Product Parameters

Products Name	EN26 Machined Hammer Pins / Heavy Duty Retaining Pins
Material	EN26 (826M40 / 40NiMoCr Alloy Steel)
Raw blank outer diameter	Ø150mm
Finished total length	2565±2mm
Symmetrical end step width	20 mm
Outer end taper angle	30°
End chamfer	5 × 45°
Surface roughness of turning surface	Ra 12.5 μm
Heat Treatment	Quenched & Tempered (Condition W)
Hardness	HB 311 - 375
Tensile Strength	Approx. 900 - 1100 MPa
Proof Stress	≥ 820 MPa
Charpy Impact Energy	35 J
Manufacturing Process	Forging, CNC Precision Machining, Quenching & Tempering Heat Treatment, Nitriding (optional)
OEM & ODM custom service	Customization is available based on drawings
Application	Scrap Recycling Crusher, Hydraulic Rock Breaker, Mining Machinery