Sany Original Oil Suction Rubber Hose SY300A.1.2-2A, Sany Material Code: A820606030534, rubber hoses for all Sany machine models are available.

Sany Original Suction Oil Hose SY300A.1.2-2A, Sany Material Code: A820606030534, available for all Sany machine models.
Model: SY300A.1.2-2A
Material Code: A820606030534
Compatible Models: Sany SY300 Series Excavators (SY300H/SY305H, etc.)
Purpose: Hydraulic Tank → Main Pump Suction Line, vacuum-resistant, anti-collapsing.
Model Interpretation
- SY300A: Compatible with 30-ton excavators
- 1.2-2A: Suction oil hose, structural/length code
Core Parameters (Original Factory)
- Inner Diameter: DN50 (50mm)
- Structure: Oil-resistant inner rubber → Spiral steel wire reinforcement → Wear-resistant outer rubber (anti-collapsing)
- Working Pressure: Vacuum -0.08MPa / Positive Pressure ≤0.5MPa
- Temperature Resistance: -30℃～+90℃ (hydraulic oil)
- Length: Approximately 600mm (per original factory drawing)
- Fittings: Flange/Clamp type on both ends, with seals
- Material: Inner rubber Nitrile Butadiene Rubber (NBR), outer rubber oil-resistant and aging-resistant
Product Advantages
1. Original Factory Quality, No Collapse Under Vacuum
Original Sany (A820606030534) with built-in spiral steel wire, vacuum-resistant and non-collapsible, ensuring stable main pump oil supply.
2. Large Bore, Low Resistance, Anti-Cavitation
DN50 bore, low suction resistance, preventing pump cavitation and extending main pump life.
3. Oil-Resistant and Aging-Resistant, Long Service Life
NBR inner rubber + wear-resistant outer rubber, compatible with various hydraulic oils, resistant to aging and deformation, durable in mining/heavy-duty conditions.
4. Original Factory Fittings, Direct Replacement
Original factory length and fittings, no modification required, easy installation and removal, reducing downtime.
Installation Notes
- Compatibility: From hydraulic tank to main pump suction port of SY300/SY305.
- Installation: Do not bend or flatten the hose body; secure firmly. Ensure flanges/clamps are tightened and seals are replaced with new ones.
- Note: The suction hose must not leak air, otherwise it may cause system noise, vibration, and pump damage.