Lines-Oil Return

SANY CATALOG ➤ SANY SY215C8 Truck Crane Parts Catalog

Lines-Oil Return: Complete Component Overview

The Lines-Oil Return is the dedicated low‑pressure circuit that routes hydraulic fluid back to the tank after actuation. Investing in authentic Sany Parts ensures your SY215C8 avoids backpressure issues and overheating. This assembly includes the following precision components.

Valve As – Oil Return – This pilot-operated valve opens gradually to prevent pressure spikes. It returns oil smoothly to the cooler and filter, extending component life.

Bolt – High‑strength class 10.9 bolts secure the valve and flanges. Their precise thread engagement prevents loosening due to vibration.

Washer – Hardened steel washers distribute bolt load evenly. They protect aluminium housings from indentation and maintain clamp force over time.

Screw – Grade 12.9 socket head screws fasten tube clamps and brackets. Their black oxide coating resists corrosion in humid environments.

Hose As – Pre‑assembled hose assemblies with crimped ends. They feature a compacted wire braid that withstands low‑pressure return surges up to 8 MPa.

O-ring – Nitrile rubber O‑rings provide static sealing at every flange. They resist degradation from hot oil and ozone, ensuring zero leaks.

Hose – Flexible synthetic rubber hose connects rigid tubes to moving components. Its spiral reinforcement eliminates kinking and extends service life.

Tube As – Rigid steel tube assemblies with welded flanges. They maintain straight flow paths, reducing pressure drop in the return circuit.

Clamp – Heavy‑duty tube clamps with rubber inserts. They dampen vibration and prevent chafing against the chassis.

Plate As – Support – Laser‑cut steel support plate that aligns the return valve. It features slotted holes for easy assembly and precise positioning.

Pipe – Oil Return – The main return pipe collects oil from multiple actuators. Its large 38mm diameter reduces backpressure and heat generation.

Fitting – Machined steel adapter with O‑ring boss threads. It connects different port sizes without leakage, even under thermal cycling.

Lines-Oil Return – Genuine SANY Low‑Pressure Return Kit

Download Catalog Get Quotation

Product Parameters of Lines-Oil Return

The table below lists the exact index, part number and name for every component in the Lines-Oil Return assembly. All data follows SANY original catalog.

}

INDEX	PART NUMBER	PART NAME
1	A810201062464	Valve As – Oil Return
2	A210111000120	Bolt
3	A210401000001	Washer
4	A210204000206	Screw
5	A810201068208	Hose As
6	A210204000338	Screw
7	B230101000244	O-ring
8	A810201023662	Hose
9	A810201024254	Tube As
10	A229900004566	Clamp
11	Change or see other configurations	Plate As – Support
12	A810201024253	Tube As
13	A810201023542	Hose As
14	A810201023543	Hose As
15	A810299000174	Pipe – Oil Return
16	A210204000361	Screw
17	A810201062465	Valve As – Oil Return
18	A210204000360	Screw
19	A210401000002	Washer
20	A819700001090	Fitting

Why Choose Our Lines-Oil Return?

Our Lines-Oil Return is hydrostatically tested to 1.5× system pressure. Every valve and hose is traceable to SANY OEM standards, guaranteeing zero leakage even after 10,000 hours.

Competitive direct pricing with bulk discounts. Kits include all bolts, washers, and O‑rings – no hidden costs. Lower total ownership cost compared to dealer alternatives.

Ready‑to‑ship from regional warehouses (USA, EU, Asia). Express delivery available for urgent repairs. Each assembly is packed in anti‑corrosion wrapping.

Field data shows 31% fewer return‑circuit failures when using genuine Lines-Oil Return. Our engineering team provides online torque specs and routing diagrams.

Optimised Flow & Heat Management

The Lines-Oil Return features a large‑bore pipe (38 mm ID) and smooth‑bend tubes that reduce backpressure by 22% compared to generic replacements. This directly lowers oil temperature and extends pump life. The two return valve assemblies incorporate soft‑opening spools that prevent pressure spikes when attachments are disengaged. As a result, your SY215C8 runs cooler and more efficiently even during heavy continuous operation.

Corrosion Resistance & Vibration Damping

All steel components in the Lines-Oil Return are zinc‑plated and passivated, meeting 720‑hour salt spray resistance. Rubber hose clamps and the support plate’s rubber grommets isolate vibration by 60%, preventing fatigue cracks at welded joints. The O‑rings are made of high‑grade HNBR, compatible with modern biodegradable hydraulic oils. This makes our return line ideal for environmentally sensitive job sites.

Quick Installation & Fleet Standardisation

The Lines-Oil Return is a direct bolt‑on replacement for SANY SY215C8 models from 2015 onward. All threaded holes align perfectly, and the pre‑assembled hoses reduce installation time by 40% compared to cutting and crimping loose parts. For fleets with multiple cranes, we can pre‑label each hose with coloured tags for error‑free servicing. The digital installation manual is available through the Download Catalog button.

Maintenance tip: Inspect the Lines-Oil Return every 1000 hours. Replace O‑rings whenever you disconnect a flange. Torque bolts to 85 Nm (M10) and 160 Nm (M12) using a calibrated wrench. Avoid over‑tightening, which may distort the valve body. For high‑duty cycles, we recommend replacing the return hoses every three years to prevent inner layer degradation.

To summarise, the genuine Lines-Oil Return from Sany Parts guarantees flawless fluid return, lower thermal stress, and compliance with original equipment tolerances. With thousands of SY215C8 units equipped worldwide, our return line kit is the trusted choice for maintenance professionals. Download the full catalog to view 3D models, or request a quotation for a complete set with all fasteners included.

For extended service, pair the Lines-Oil Return with a new return filter element and clean the tank suction screen. Our team can provide customized kits if you need longer hoses for modified attachments. Use the Get Quotation button to specify your crane serial number and receive a fitment guarantee within 4 hours.

Online Catalog of SANY Parts

Learn More

If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.