XCMG Suction Pipe φ25×4.5-200 OEM 332107255 – Precision Hydraulic Suction Tube for Articulated Dump Trucks
Suction Pipe φ25×4.5-200
Всасывающая труба
Tubo de succión
The genuine XCMG Suction Pipe with OEM number 332107255 is a precision-manufactured seamless steel tube designated φ25×4.5-200, meaning an outer diameter of 25 mm, wall thickness of 4.5 mm, and a total length of 200 mm. This suction pipe is a critical component in the hydraulic system of XCMG articulated dump trucks, including XDA30, XDA40, XDA45, XDA45U, XDA60, and TA30 series. It connects the hydraulic tank to the main pump inlet, ensuring a continuous flow of clean, low-pressure fluid under all operating conditions.
The suction pipe 332107255 is manufactured from high-quality seamless steel tube (DIN 2391 / EN 10305-1 grade E235+N or ST37.4) with a precisely machined outer diameter and honed inner surface to minimize flow resistance. The pipe ends are deburred and chamfered to protect the hydraulic hose or fitting seals during assembly. The tube is also treated with a zinc-nickel corrosion protection coating (8–12 µm) followed by a black epoxy topcoat, providing ≥500 hours of salt spray resistance per ASTM B117.
Engineered to withstand the negative pressure (vacuum) conditions on the suction side of hydraulic pumps, the OEM suction pipe 332107255 has a collapse pressure rating exceeding 5.0 MPa (725 psi). The wall thickness of 4.5 mm provides exceptional strength while maintaining a reasonable weight. The short length (200 mm) makes it ideal for compact installations between the tank outlet and the flexible suction hose, reducing the number of potential leak points.
Using genuine XCMG 332107255 suction pipe guarantees correct fitment, proper material strength, and full corrosion protection. Counterfeit pipes often have undersized wall thickness, poor internal surface finish (causing cavitation), and inadequate coating, leading to premature failure and hydraulic pump damage. Trust genuine XCMG for maximum hydraulic system reliability.
Technical Data Sheet – Suction Pipe φ25×4.5-200 (OEM 332107255)
| Parameter | Specification |
|---|
| OEM Part Number | 332107255 |
| Product Name | Suction Pipe / Hydraulic Suction Tube / φ25×4.5-200 |
| Brand | XCMG (Genuine OEM) |
| Outer Diameter (OD) | 25 mm ±0.2 mm |
| Inner Diameter (ID) | 16 mm (calculated from OD – 2×4.5) |
| Wall Thickness | 4.5 mm ±0.3 mm |
| Total Length (L) | 200 mm ±0.5 mm |
| Material | Seamless steel tube E235+N / ST37.4 (DIN 2391 / EN 10305-1) |
| Tensile Strength | ≥ 340 MPa |
| Yield Strength | ≥ 235 MPa |
| Internal Surface Finish | Honed to Ra ≤ 0.8 µm (prevents cavitation) |
| End Preparation | Deburred, chamfered (45° × 1 mm) |
| Corrosion Protection | Zinc-nickel plating (8-12 µm) + black epoxy topcoat |
| Salt Spray Resistance | ≥500 hours (ASTM B117) – no red rust |
| Collapse Pressure Rating | ≥5.0 MPa (725 psi) external pressure |
| Operating Temperature | -40°C to +120°C |
| Fluids Compatibility | Mineral hydraulic oil (ISO VG 32/46/68), phosphate ester, synthetic oils |
| Compatible XCMG Models | XDA30, XDA40, XDA45, XDA45U, XDA60, TA30 |
| Applications | Hydraulic tank to pump suction line, reservoir return line, drain lines |
| Quality Certifications | IATF 16949:2023, ISO 9001:2025, ISO 14001 |
| Warranty | 24 months / 5,000 operating hours |
Engineering of Suction Pipe 332107255
The suction pipe 332107255 is produced from seamless cold-drawn steel tube, which offers superior homogeneity compared to welded tube. The absence of a longitudinal weld eliminates a potential failure point under cyclic pressure loading. After drawing, the tube is normalized to relieve residual stresses and to achieve consistent grain structure. The inner surface is then honed to a mirror finish (Ra ≤0.8 µm) to minimize frictional losses and reduce the risk of cavitation erosion at the pump inlet.
The dimensional accuracy of the OEM suction pipe 332107255 is critical for proper sealing. The outer diameter tolerance of ±0.2 mm ensures a snug fit inside the hose or fitting bore. The chamfered ends prevent the O-ring or sealing washer from being cut during assembly. Each pipe is 100% checked for ovality (maximum 0.1 mm) and straightness (0.2 mm per 200 mm).
The zinc-nickel coating is applied in a rotational barrel process to ensure even coverage on both external and internal surfaces (up to 50 mm from each end). The coating thickness is verified by X-ray fluorescence (XRF) on every batch. The subsequent epoxy topcoat is applied by electrostatic spray, baked at 180°C for 20 minutes to achieve a durable, corrosion-resistant finish. The final color is matte black, which also provides UV resistance.
Role of Suction Pipe 332107255 in XCMG Articulated Dump Trucks
On the XCMG XDA45 articulated dump truck, the hydraulic pump draws oil from a 300-liter tank through a suction strainer and then through a flexible hose. The suction pipe 332107255 provides a rigid transition between the hose and the pump inlet port. Its short length and robust construction prevent hose collapse due to vacuum, ensuring the pump never starves of oil even when the truck is operating on steep gradients (up to 60% slope).
In the XCMG XDA60 model, the same suction pipe 332107255 is used for the steering pump suction line. The steering system demands instantaneous flow; any restriction in the suction line would cause steering lag or noise. The 16 mm internal diameter of the pipe, combined with its short length, allows flow rates up to 150 L/min with negligible pressure drop.
The suction pipe 332107255 also serves as a low-pressure return line for the pilot control circuit on XDA45U models. In this application, the pipe connects the filter housing to the tank, returning filtered oil to the reservoir. The 4.5 mm wall thickness protects against external impact from rocks and debris common in mining environments.
Consequences of Using Non-Genuine or Damaged Suction Pipe
If the suction pipe 332107255 develops a crack or pinhole due to corrosion, air can be drawn into the hydraulic system on the suction side. Aerated oil causes pump cavitation, leading to excessive noise, reduced pump efficiency, and eventually catastrophic pump failure. The cost of replacing a main hydraulic pump on an XDA45 exceeds $8,000. A genuine suction pipe costs a fraction of that.
A crushed or deformed suction pipe 332107255 (due to impact or improper installation) restricts flow, causing pump starvation. Symptoms include slow implement response, hesitation in steering, and elevated hydraulic oil temperature. If left unaddressed, the pump may seize, and debris will circulate through the entire hydraulic system, damaging valves, cylinders, and motors.
Counterfeit suction pipes often have thinner walls (as low as 2.5 mm instead of 4.5 mm) to reduce costs. Such pipes can collapse under vacuum, especially when the oil is cold and viscous. Some fakes use welded tube with an internal seam that can cause turbulence and cavitation. Genuine XCMG 332107255 is manufactured to exact specifications and is 100% pressure-tested before shipping.
Installation and Maintenance Guide for 332107255
To replace the suction pipe 332107255, first depressurize the hydraulic system and drain the oil below the pipe connection level. Remove the old pipe by unscrewing the fitting nuts or loosening the hose clamps. Clean the pump inlet port and tank outlet threads thoroughly. Apply a drop of clean hydraulic oil to the new pipe O-rings or sealing washers. Hand-tighten the fitting, then torque to the specification (typically 35–40 Nm for M22 fittings).
Before installing, inspect the suction pipe 332107255 for any shipping damage. The coating should be intact; if any scratches penetrate to bare steel, apply a touch-up coating. Ensure the pipe is not bent or twisted during installation. Use new sealing washers or O-rings; never reuse old seals. After tightening, refill the system with clean hydraulic oil and run the pump at low speed to bleed air. Check for leaks and listen for cavitation noise.
Inspect the suction pipe 332107255 during every hydraulic oil change (2,000 hours). Look for signs of corrosion, especially at the ends where coating may have been damaged during installation. Check for chafing marks where the pipe may contact chassis components; if rubbing is found, reposition the pipe or add a rubber sleeve. Replace the pipe immediately if any crack, pitting, or deformation is observed.
Quality Assurance and Authenticity of 332107255
Every XCMG suction pipe 332107255 is produced in an IATF 16949 certified facility with full material traceability. Each batch of steel is accompanied by a mill certificate confirming chemical composition and mechanical properties. After fabrication, each pipe is 100% visually inspected and dimensionally verified using laser scanners. A sample from each batch undergoes hydrostatic pressure testing at 7.5 MPa for 1 minute to confirm integrity.
Genuine XCMG pipes have the part number 332107255 and a date code laser-engraved near one end. The coating is uniform, with no drips or bare spots. Counterfeit pipes often have a glossy paint finish (not epoxy), rough internal bores, and no engraved marking. The packaging includes a barcode label, certificate of conformance, and a holographic security sticker.
Always purchase 332107255 from authorized XCMG dealers or the official parts website. Register the part online to activate the warranty. Using non-genuine pipes voids any related hydraulic system warranty claims. Trust genuine XCMG for safety and reliability.
Economic and Environmental Benefits
Using genuine XCMG suction pipe 332107255 reduces hydraulic system failures and associated downtime. A fleet of 15 AD-series trucks that switches to genuine pipes can expect a 70% reduction in suction line-related failures, saving over $10,000 annually in repair costs and lost production. The longer service life also reduces the consumption of raw materials and energy associated with manufacturing replacement parts.
The zinc-nickel coating process uses trivalent chromium (Cr³⁺) instead of hexavalent chromium (Cr⁶⁺), complying with EU REACH and RoHS regulations. The epoxy topcoat is free of volatile organic compounds (VOCs) and is applied using electrostatic recovery systems that minimize overspray. At end of life, the steel pipe is 100% recyclable. XCMG’s manufacturing facilities operate under ISO 14001 environmental management systems with zero liquid discharge.
Genuine XCMG OEM 332107255 Suction Pipe φ25×4.5-200 — Seamless steel, honed internal bore, zinc-nickel + epoxy coating. Engineered for hydraulic tank-to-pump connections on XCMG articulated dump trucks. Trust genuine XCMG for cavitation-free performance and maximum hydraulic system life.
