E312 Boom Cylinder for CAT Excavator - High Strength Hydraulic Cylinder with 31.5MPa Working Pressure and -30°C to 100°C Temperature Range

• High Durability: Constructed with high-strength alloy steel for extended service life
• Precision Design: Engineered for perfect fit with Caterpillar E312 excavators
• Reliable Sealing: Premium seals (NOK, Parker) prevent oil leakage
• Wear-Resistant Coating: Hard chrome plated piston rod resists corrosion and scratches
• Customizable Options: Available in various dimensions and specifications

Over 16 years specializing in hydraulic cylinders and excavator parts with premium materials and precise manufacturing.

Efficient logistics for quick delivery and comprehensive after-sales service with expert support.

Tailored parts designed to meet specific requirements for optimal performance.

Complete hydraulic cylinder production line using advanced CNC equipment and ISO quality standards.

Tempered steel rods induction hardened before chrome plating, resisting rust for over 100 hours in salt spray tests.

Fully automated welding process ensures consistent, strong joints matching original part appearance.

Finished products undergo rigorous inspection before warehouse storage.

Products exported to over 100 countries with industry certifications and participation in major exhibitions including 2023 Malaysia and 2024 Shanghai Bauma.

Provide model number, machine serial number, or part dimensions/drawings for accurate matching.

High-frequency quenching No.40 manganese steel rods, No.25 manganese steel tubes, and name-brand seal kits.

Stock models: 7 days; Less than container: 2 weeks; 1-2 containers: 4-6 weeks.

Orders under $3000: full payment; Over $3000: 50% deposit; Custom orders: 70% deposit.

We work with your shipping agent or arrange delivery via UPS/DHL/TNT for light goods, or sea freight for heavy goods.