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Doosan SOLAR220LC-III / SOLAR220-III Boom Hydraulic Cylinder | PN:2440-9144B / 2440-9088 / 2440-9087 | Premium Aftermarket Replacement
1. Basic Product Info
Premium aftermarket boom hydraulic cylinder compatible with Daewoo/Doosan SOLAR220LC-III,SOLAR220-III(DH220-3) excavator. Three interchange OEM codes: 2440-9144B / 2440-9088 / 2440-9087, direct replacement for original factory cylinder, controls boom lifting & falling for earthmoving, quarry mining, road construction projects. Fully consistent with OEM drawing size, lug spacing, oil port layout for direct plug-and-play installation without on-site machining.
| Item |
Details |
| Product Name |
Hydraulic Boom Cylinder |
| Applicable Model |
Doosan(Daewoo) SOLAR220LC-III, SOLAR220-III, DH220-3 |
| OEM Part Numbers |
2440-9144B, 2440-9088, 2440-9087 |
| Grade |
Brand New High-Quality Aftermarket |
| Warranty |
12 months against manufacturing defects |
| MOQ |
1 unit in stock available |
| Quality Standard |
ISO9001 certified, full hydraulic pressure inspection |
2. Core Technical Parameters
| Spec Item |
Parameter |
| Bore Size |
125mm |
| Piston Rod Dia |
85mm |
| Working Stroke |
1263mm |
| Rated Working Pressure |
34.3MPa |
| Factory Test Pressure |
51.45MPa(1.5×rated pressure) |
| Barrel Material |
ST52 seamless alloy steel, precision inner honing finish |
| Piston Rod |
40Cr quenched+tempered steel, hard chrome coating 28~32μm, HRC67~70 anti-abrasion |
| Seal Assembly |
Import NBR+PU composite high-pressure seals |
| Working Temp |
-25℃~+85℃ |
| Design Service Life |
≥7800 working hours under heavy-duty mining condition |
| Structure |
Double-ear mounting with wear-resistant copper bushings |
3. Product Advantages
- Triple OEM PN Interchange: Three original part numbers fully interchangeable, fits all production batch SOLAR220LC-III machines, compatible with original boom arm and hydraulic pipeline.
- Reinforced Heavy-Duty Build: Thickened lug root & strengthened cylinder barrel against rock collision, effectively avoid ear crack and rod bending for quarry harsh working environment.
- 100% Pre-delivery Pressure Test: Each finished cylinder completes full-stroke reciprocating & tightness test to eliminate inner/outer oil leakage before shipment.
- Cost Saving Solution: Same working performance as genuine Doosan parts while cutting 40%~48% purchasing cost for repair wholesalers & maintenance shops.
- Flexible Shipment: In-stock items ship within 3 working days; air freight 3~7 days for urgent order, sea cargo 30~38 days for bulk purchase.
4. Supplier Overview
Our factory specializes in Doosan SOLAR III series hydraulic cylinders more than 12 years, full boom/arm/bucket cylinder lineup for SOLAR130LC-III, SOLAR200W-III, SOLAR220LC-III, SOLAR280LC-III, goods mainly exported to Africa, Southeast Asia, Middle East spare parts market.
5. FAQ
Q1: Can this cylinder fit SOLAR220LC-V newer model?
A: Not compatible; SOLAR-V version uses different part codes and mounting dimensions, cannot cross install.
Q2: Is matched seal kit included in standard package?
A: Standard packing without seal kit; supporting matching repair seal kit (PN:2440-9144KT) at discounted bundled price.
Q3: Anti-rust package for long sea transport?
A: Inner cylinder filled anti-rust oil, rod coated anti-rust grease, wrapped waterproof PE film + solid export plywood case.
Q4: Discount for full set boom+arm+bucket cylinder bulk order?
A: Combined full-set purchase enjoys tiered unit discount & consolidated single freight to lower total logistics cost.
Q5: Warranty support for oil leakage within valid period?
A: Provide leakage photos + machine serial number, we supply free replacement seal set or remote installation guidance accordingly.
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