Sany A810201066451 Tube-Hard (Boom Cylinder) Catalog

SANY CATALOG ➤ SANY SY215C8 Truck Crane Parts Catalog

Download Catalog Get Quotation

The Sany A810201066451 Tube-Hard (Boom Cylinder) is a rigid hydraulic tube that carries pressurized oil between the main control valve and the boom cylinder on Sany cranes and excavators. This hard tube is a vital part of the boom hoist circuit, enabling precise control of boom raising, lowering, and telescoping functions. Engineered for high-pressure applications, this tube is manufactured from seamless steel tubing with a protective coating to resist corrosion and external damage.

The Sany A810201066451 Tube-Hard (Boom Cylinder) features precision-bent geometry that follows the machine’s chassis contours, ensuring optimal routing without interference with other components. Both ends are fitted with factory-installed flare or O-ring face seal (ORFS) fittings that provide a secure, leak-proof connection to the hydraulic system. The tube is carefully deburred and internally cleaned to prevent contamination of the hydraulic oil, which is critical for maintaining system cleanliness and preventing premature wear of valves and cylinders.

Designed to withstand operating pressures up to 35 MPa (5000 psi) and peak pressures during shock loading, the Sany A810201066451 Tube-Hard (Boom Cylinder) is made from high-strength low-alloy (HSLA) steel with a minimum tensile strength of 600 N/mm². The tube is also subjected to a pressure test and non-destructive examination (NDE) to guarantee its integrity. Its robust construction ensures that it maintains dimensional stability even under extreme temperature variations and mechanical vibrations, which are common in heavy-duty construction sites.

Whether used on Sany SAC series all-terrain cranes, STC series truck cranes, or SY series large excavators, the Sany A810201066451 Tube-Hard (Boom Cylinder) delivers consistent, reliable oil delivery that operators can trust. As a direct OEM replacement, this hard tube eliminates fitment issues and ensures that the routing, bracket locations, and connection points match factory specifications perfectly. This guarantees reliable boom performance and contributes to the overall safety and productivity of the equipment.

INDEX	PART NUMBER	PART NAME
1	A810410990022	Plate
2	A210404000003	Disk
3	A210204000334	Screw
4	A810201066381	Tube
5	A810201066455	Tube

Every Sany A810201066451 Tube-Hard (Boom Cylinder) is backed by our commitment to quality, ensuring your equipment stays productive and reliable on every job site.

Regular visual inspections — Periodically examine the Sany A810201066451 Tube-Hard (Boom Cylinder) for any signs of wear, abrasion, corrosion, or damage to the tube surface. Pay special attention to areas where the tube may chafe against other components or brackets. Also, inspect the end fittings for any signs of leakage or damage to the sealing surfaces. Replace any tube that shows significant pitting, scoring, or deformation.

Check for leaks and fluid contamination — Inspect the area around the tube and its connections for hydraulic oil leaks. A loose or damaged tube can cause oil seepage, which not only wastes fluid but also attracts dust and dirt that can accelerate wear. Additionally, monitor the hydraulic oil condition; if it appears cloudy or contains metal particles, it may indicate internal wear of the tube or other components that require further investigation.

Replace worn or damaged tubes and fittings — Over time, the Sany A810201066451 Tube-Hard (Boom Cylinder) may become damaged due to impact, vibration, or corrosion. If the tube is bent, cracked, or severely corroded, it must be replaced. Always use genuine Sany replacement tubes and fittings to ensure proper material compatibility, dimensions, and pressure ratings. When replacing, also replace any O-rings or seals in the connections to prevent future leaks.

Monitor boom performance — Pay attention to changes in boom movement speed, responsiveness, or unusual noises during operation, as these can be early indicators of tube issues. A restricted or leaking tube can cause sluggish boom operation or inability to hold loads. During preventive maintenance, check the tightness of all tube clamps and brackets to ensure the tube is properly supported and does not vibrate excessively. Early detection of tube problems allows for timely replacement, preventing more costly damage to the boom cylinder, control valve, or pump.

Always refer to the equipment’s service manual for specific maintenance intervals, torque specifications for tube fittings, and inspection procedures for the Sany A810201066451 Tube-Hard (Boom Cylinder). Proper care ensures maximum uptime and extends the lifespan of your boom hydraulic system.