Through/Side/Hex Bolt:
Material: 42crmo Bolt has 10.9 Grade and 12.9 Grade Heating processing →Quench→Temper→Surface treatment:
natural color 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 .
Custom Piston:
Material: 20crmo
Our company can according to the customer request to make special specification piston: According to the assembly need grinding piston diameter, Control piston in tolerance range, make piston and cylinder body between the fit clearance to achieve the best effect.
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.