OEM ODM Factory 40T 55T 60T 75T Durable Mining Concrete Rock Hammer Hydraulic Breaker for 45-75 Ton Excavators SY750H SY870H

OEM ODM Factory 40T 55T 60T 75T Durable Mining Concrete Rock Hammer Hydraulic Breaker for 45-75 Ton Excavators SY750H SY870H

We specialize in producing hydraulic breaker hammer fittings, including breaker chisel, rod pin , hammer bushing, etc.
For our hydraulic breaker chisels, all use super heat treatment technology and high quality wear materials, to make sure the chisels' quality and intensity.

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Through/Side/ Bolt:
Material: 42crmo
Bolt has 10.9 Grade and 12.9 Grade Heating processing →Quench→Temper→Surface treatment:
natural colour and black coating

Mounting Pin:
Material: 42crmo
Hardening→Tempering-finish machining→ Mid frequency induction hardening →Outside diameter grinding The depth of quenching is 3MM and the high surface hardness,with high Durability.

Special Checked Piston:
Material: 20crmo
Thermal treatment use overall carburizing →quenching heat treatment → Processing using high precision checked grinding technology With high surface precision and good fineness . Hydraulic oil can adhere to the piston surface well and forming oil film , with good lubricity and abrasive resistance , to extend the piston’s life , and keep the force of impact .

Inner Bush:
Material: 42crmo or 20crmo
Forging blank → finish machining → carburizing→ quenching→Fine grinding Product accuracy is high and stand wear and tear.

Front Cover:
Material: 42crmo or 20crmo
Forging blank→finishing (finish machining) → carburizing heat treatment →assembly surface fine grinding Product is wear-resisting and impact resistance.