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400504-00011 HYDRAULIC SUCTION FILTER
High-Precision Alloy Stainless Steel Media for Doosan & Heavy Mining Equipment
Advanced Suction-Side Protection Logic
The 400504-00011 Hydraulic Suction Filter is engineered to serve as the first line of defense for your hydraulic pump. Positioned within the suction line, its primary logical role is to prevent coarse contaminants and large particulates from entering the pump's sensitive internal rotating groups. In high-demand systems like the Doosan DX Series, pump cavitation caused by air suction or restricted flow is the leading cause of catastrophic failure.
Unlike standard cellulose filters that may collapse under negative pressure, this filter utilizes a Special Alloy Stainless Steel Mesh. This material ensures that even during cold starts with high-viscosity oil, the Pressure Pulsation Resilience remains intact, maintaining the ISO 4406 Cleanliness Code required for modern high-pressure common rail systems and sensitive hydraulic actuators.
High-Precision SS Media
Utilizing multi-layer reinforced stainless steel mesh with a Deep-Pleated Structure. This design maximizes the effective filtration area, ensuring a superior Beta Ratio ($\beta_{x(c)}$) and high dirt-holding capacity without compromising oil flow.
Rugged All-Metal Construction
Equipped with Nickel-plated Anti-rust Metal End Caps and a high-strength center tube. This structural integrity prevents deformation under Intense Return Shocks and ensures zero-bypass performance under extreme vacuum conditions.
Aero-Tight Sealing
The Precision-Polished Sealing Surface provides a 100% leak-proof interface with the base. This is critical for preventing air ingress (aeration), which causes foam in the hydraulic fluid and leads to erratic control and luffing instability.
Extended Component Life
By maintaining precise fluid viscosity and preventing abrasive wear, this filter significantly extends the service life of hydraulic pumps and injectors. It is a professional choice for system pressure stability in harsh mining environments.
Technical Data & Performance Standards
| Specifications | Details / Performance Metrics |
|---|---|
| Part Number | 400504-00011 |
| Product Type | Hydraulic Suction Filter Element |
| Filter Media | Multi-layer Stainless Steel Reinforced Mesh |
| End Cap Material | Nickel-plated Anti-rust Heavy-Duty Metal |
| Applicable Medium | Mineral & Synthetic Hydraulic Oils |
| Testing Standards | ISO 19438 Standard Compliant / ISO 4548 Grade |
| Minimum Order (MOQ) | 50 Units (Wholesale Export Factory Pricing) |
OEM Cross-Reference & Interchange
Designed to exceed original equipment performance standards for seamless field replacement.
400504-00011
SH 60764
Versatile Global Applications
- ▶ Doosan Excavators: Optimized for heavy-duty DX-series models (DX300, DX340, DX380, DX500). Perfect for rapid cycle times in construction and demolition.
- ▶ Mining Drills: Essential for power units in open-pit mining where ultra-fine dust and harsh temperatures demand absolute filtration reliability.
- ▶ Industrial Machinery: Ideal for massive injection molding machines and heavy hydraulic presses requiring continuous fluid circulation.
- ▶ Heavy Cranes: Provides smooth outrigger and luffing control for all-terrain cranes under maximum load stress.
Expert Insight: For equipment operating in sub-zero environments, the metal mesh in the 400504-00011 is far superior to synthetic melt-blown media. Synthetic media can become brittle or cause excessive resistance when oil viscosity increases due to low temperatures. Our stainless steel mesh ensures a constant flow rate, protecting the pump from dry-starts.
Frequently Asked Questions
Q1: Will the filter media deform under high oil temperatures?
A: No. Unlike cellulose or standard plastic-reinforced filters, our all-metal alloy construction and stainless steel mesh maintain structural integrity at temperatures exceeding 120°C, typical of heavy-duty mining operations.
Q2: How does this filter prevent air suction and pump cavitation?
A: The sealing surface is precision-ground and paired with high-grade Nitrile or Viton gaskets. This ensures a perfect vacuum seal at the suction port, preventing air from being pulled into the system, which is a major cause of pump noise and failure.
Q3: Can this replace the original Doosan 400504-00011 without modification?
A: Yes. It is a 100% direct replacement. Every dimension, thread pitch, and flow rating is matched or exceeds the OEM specifications for a "plug-and-play" installation.
Q4: Why is stainless steel mesh better than paper for suction filters?
A: Suction filters require low flow resistance. Stainless steel mesh provides a high "open area" ratio compared to paper, allowing the pump to "breathe" easier while still capturing dangerous metal shards and debris.
Q5: What is the typical service life of this filter?
A: While it depends on the environment, our reinforced mesh offers up to 30% longer service intervals than standard aftermarket filters due to its superior dirt-holding depth.
Upgrade Your Fleet's Hydraulic Reliability Today
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*MOQ 50 Units applies. Custom branding and bulk discounts available for authorized distributors.
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