Arm Cylinder

OEM replacement arm cylinder for Hitachi ZX70 series. Features tempered steel rod with induction hardening and chrome plating for durability. Operates at 21-35 MPa and -20-80°C. Custom dimensions available. Backed by warranty and technical support.

OEM replacement arm cylinder for Hitachi EX200-1. Features hard chrome plated rod, honed tube, and Japan/USA seals. 100% pressure tested. Custom dimensions available. Factory direct with 16+ years export experience.

High-pressure rod seal materials prevent oil leakage. Bore diameters 65-120mm, rod up to 260mm, stroke to 2716mm. Durable, custom options available. Over 16 years of manufacturing expertise ensures reliable performance and extended equipment life.

Aftermarket hydraulic arm cylinder for Hyundai R180LC-7 excavator. Rated 21-35 MPa, -30-100°C. Features tempered steel rod, mirror finish, and automated welding. Custom dimensions available. OEM quality with warranty and global support.

Hydraulic arm cylinder for CAT E320D, compatible with multiple models. Features tempered steel rod, induction hardened, mirror finish, and automated welding. Custom dimensions available. ISO quality, OEM service, and global export.

High-quality replacement hydraulic stick cylinder for Caterpillar E320B excavators. Features tempered steel construction, automated welding process, and 100+ hour salt spray rust resistance. Custom dimensions available with OEM support and comprehensive service stages including pre-sales consultation, fast delivery, and after-sales technical support. Compatible with multiple 320B series models.

High-performance hydraulic stick cylinder designed for Caterpillar E307 and E307E excavators. Features 25Mn high-strength steel construction and 100% OEM compatibility with part numbers 105-7437 and 125-1494. Includes complete spare parts kit for easy maintenance and reliable operation in demanding conditions.

High-performance hydraulic arm cylinder designed for Caterpillar E305.5 and E306 excavators with 21-35MPa working pressure and 40MPa maximum pressure. Features tempered steel construction, automated welding, and 100+ hour salt spray rust resistance. Includes full OEM support, customization options, and comprehensive service package with warranty and technical support.

High-performance OEM arm cylinder assembly designed for Caterpillar E301.5 excavators. Features tempered steel construction, 31.5MPa working pressure, and -30°C to 100°C operating range. Ideal for construction, mining, agriculture, and demolition applications. Includes comprehensive after-sales support and custom manufacturing options.

High-performance hydraulic arm cylinder for CAT E390F and E390D excavators. Features premium manganese steel construction, working pressure up to 63 MPa, temperature range -30°C to 100°C, and ISO quality standards. Includes comprehensive spare parts compatibility and custom manufacturing options for industrial applications.

Professional E312B excavator arm hydraulic cylinder with OEM compatibility, working pressures up to 63MPa, and temperature range from -30°C to 100°C. Features premium manganese steel construction, automatic welding process, and comprehensive spare parts compatibility. Ideal for construction, mining, agriculture, forestry, and demolition applications with reliable performance and quality certifications.

High-performance E312D excavator hydraulic arm cylinder designed for Caterpillar equipment. Features 63MPa maximum pressure, leak-proof design with premium seals, and customizable dimensions. Built with manganese steel components and automatic welding for enhanced durability in construction, mining, and earthmoving applications. ISO-certified manufacturing with global export experience.

High-performance hydraulic arm cylinder assembly designed specifically for Caterpillar E305C excavators. Features 35 MPA working pressure, 50 MPA maximum pressure, and temperature range of -30°C to 100°C. Built with premium materials, precision engineering, and reliable sealing system to prevent oil leakage. Customizable options available with fast delivery and comprehensive after-sales support.

High-strength forged steel hydraulic arm cylinder assembly designed for Hyundai R55-7 excavators. Features OEM-level performance with 16+ years manufacturing expertise, 100% pressure testing, and compatibility with major brands including Hitachi, Komatsu, Volvo, Doosan, and Kobelco. Complete model coverage with 3-7 day delivery for stock items.