Hydraulic main pipeline

SANY CATALOG ➤ SANY SY215C8 Truck Crane Parts Catalog

Hydraulic main pipeline: Complete Component Breakdown

The Hydraulic main pipeline is the vital artery that delivers pressurised oil to all actuators of the SANY SY215C8 truck crane. Choosing authentic Sany Parts guarantees leak‑free connections, stable flow, and maximum uptime. This assembly consists of the following key components.

Flange,split – The split flange clamps hydraulic tubes securely, allowing quick disassembly without removing entire lines. It is forged from high‑strength carbon steel and zinc‑plated to resist corrosion, ensuring the Hydraulic main pipeline remains rigid under pressure spikes up to 42 MPa.

Screw – Grade 12.9 alloy steel screws fasten flanges and brackets. Their precision threads guarantee even clamping force, preventing micro‑leaks in the Hydraulic main pipeline. Each screw is coated with anti‑seize material for repeated maintenance cycles.

Hose – The high‑impulse hydraulic hose (4SP/4SH rating) withstands continuous working pressure of 38 MPa. Its synthetic rubber inner tube and two steel wire braids make the Hydraulic main pipeline resistant to abrasion, weathering, and flex fatigue.

Bolt – Heavy‑duty bolts (property class 10.9) secure mounting brackets and flanges. They are heat‑treated and cadmium‑plated, delivering consistent preload even under extreme vibration, so the Hydraulic main pipeline stays aligned.

Lines-Oil Retum – The low‑pressure return line directs used oil back to the tank. Its corrugated outer layer absorbs thermal expansion and reduces noise, contributing to a cooler, quieter Hydraulic main pipeline.

Washer – Hardened flat washers distribute bolt load over a larger area, preventing embedding into soft aluminum components. They are essential for maintaining torque retention in the Hydraulic main pipeline over thousands of cycles.

Flange-Half – Each half‑flange encloses the tube end with a split design. They are precisely matched to avoid misalignment, ensuring zero leakage at joints of the Hydraulic main pipeline. Supplied in matched sets.

Nozzle – The directional nozzle optimises oil jet velocity into valve blocks. Machined from brass with a smooth internal bore, it minimises turbulence and pressure drop across the Hydraulic main pipeline.

Adapter – The transition block adapts different port sizes and thread types (BSPP/NPT). Made from forged steel, it allows the Hydraulic main pipeline to integrate seamlessly with pumps, valves, and cylinders.

Seal-O-Ring – Nitrile rubber O‑rings provide static and dynamic sealing at every flange and adapter. They resist high temperature and oil degradation, keeping the Hydraulic main pipeline absolutely leak‑free.

Connector – The G3/4‑M36 straight connector joins pipes of different diameters. Its cold‑formed body ensures burr‑free internal passages, maintaining flow efficiency of the Hydraulic main pipeline.

Plate – The upper mounting plate holds hose clamps and routing guides. Laser‑cut from 8mm steel, it stabilises the Hydraulic main pipeline against chassis movement and reduces chafing.

Hydraulic main pipeline – Genuine SANY High‑Pressure Line Set

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Product Parameters of Hydraulic main pipeline

Below are the exact index numbers, part numbers and component names for the complete Hydraulic main pipeline assembly. All entries follow SANY original parts catalog.

INDEX	PART NUMBER	PART NAME
1	B210780000007	Flange,split
2	Change or see other configurations	Screw
3	B230103002692	Hose
4	A210110000324	Bolt
5	Change or see other configurations	Screw
6	A810201060419	Lines-Oil Retum
7	Change or see other configurations	Washer
8	B230103002317	Hose
9	B230103002316	Hose
10	A210204000338	Screw
11	A210204000356	Screw
12	B210780000244	Flange-Half
13	B230103003015	Hose
14	A820205001175	Nozzle
15	A820201000696	Adapter
16	B230101000456	Seal-O-Ring
17	A820205001351	Connector
18	Change or see other configurations	Seal-O-Ring
19	B230103002690	Hose
20	A810406012423	Plate

Why Choose Our Hydraulic main pipeline?

Our Hydraulic main pipeline is assembled with genuine SANY hoses and forged flanges, each pressure‑tested to 1.5 times working pressure. Zero leakage is guaranteed for 5000 hours. All components carry full traceability.

We supply complete pre‑assembled line kits including all screws, washers, and O‑rings. No need to source small parts separately. Installation time is reduced by 35% compared to piecing together aftermarket lines.

Rapid dispatch from regional hubs (USA, EU, Asia). Our Hydraulic main pipeline kits come in custom wooden crates with protective caps. Express shipping options available for emergency repairs.

Every Hydraulic main pipeline is backed by a 24‑month warranty against material defects. Our online technical library provides torque charts, routing diagrams, and troubleshooting guides. No hidden fees.

Advanced Sealing & Burst Resistance

The Hydraulic main pipeline uses double O‑ring grooves at every flange joint. Combined with high‑grade NBR seals, it withstands thermal cycling from -30°C to +110°C without hardening. The hoses feature a compacted wire braid that reduces expansion under surge pressure, delivering consistent flow to swing and travel motors. Burst pressure exceeds 180 MPa, far above the system relief setting. This safety margin ensures the Hydraulic main pipeline remains intact even during extreme shock loads.

Precision Machining & Anti‑Vibration Design

All steel adapters and connectors are machined on CNC lathes to Ra 1.2μm finish. This eliminates internal burrs that could cause turbulent flow and cavitation. The Hydraulic main pipeline also includes rubber‑isolated clamps that dampen vibration by 60%, protecting the tubes from fatigue cracks. Field tests on SY215C8 machines show that our pipeline lasts 2.5 times longer than unbranded alternatives, especially in demolition and mining applications where constant articulation occurs.

Easy Ordering & Fleet Management Support

We offer the Hydraulic main pipeline as a complete set (20 individual parts) or as sub‑assemblies (e.g. hose kit, flange kit, fastener kit). Bulk orders for multiple SY215C8 units receive volume pricing and free pre‑delivery inspection reports. Our online portal (accessible via the Get Quotation button) allows you to upload your crane serial number for guaranteed fitment. No form is used—simply send an inquiry with your requirements. We will reply within 4 business hours with a detailed quote and lead time.

Important: When replacing the Hydraulic main pipeline, always use new O‑rings and lubricate threads with clean oil. Torque bolts to 98 Nm (M10) and 196 Nm (M16) in a cross pattern. Never reuse split flanges that show any deformation. For high‑altitude or extremely dusty sites, add our optional filter mesh inside the return line adapter. Contact us for custom hose lengths if your machine has aftermarket modifications.

To summarise, the Hydraulic main pipeline from Sany Parts guarantees durability, efficiency, and genuine OEM compatibility. With over 12,000 units already supplied globally, our pipeline is the trusted choice for SANY SY215C8 owners. Download the full catalog for detailed drawings or request a quotation to keep your crane operating at peak hydraulic performance.

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