The 273100562 Baffle Plate is a genuine OEM heavy‑duty internal separator manufactured by XCMG for motor grader hydraulic oil reservoirs, fuel tanks, and coolant expansion tanks. This precision‑stamped steel plate is designed to reduce fluid surge, prevent vortex formation at pump intakes, and improve heat dissipation on GR series motor graders (GR135, GR165, GR180, GR2003, GR215, GR300, GR350). Constructed from high‑strength carbon steel with a corrosion‑resistant powder‑coat finish, the 273100562 baffle plate withstands extreme vibration, temperature fluctuations, and exposure to hydraulic oil, diesel, and moisture in demanding grading environments.
The baffle plate is installed inside the hydraulic tank, dividing the reservoir into compartments. It slows down the sloshing of oil during machine movement, ensuring a constant supply of oil to the pump suction line. This prevents cavitation, which can destroy hydraulic pumps. The plate also acts as a structural reinforcement, preventing the tank walls from deforming under pressure or impact. The 273100562 plate directly replaces damaged, missing, or corroded baffles in XCMG motor grader tanks. A missing or broken baffle can lead to pump starvation, erratic hydraulic response, and accelerated oil degradation due to excessive turbulence.
Proper baffling is critical for motor grader hydraulic system reliability and longevity. Replacing a damaged baffle plate with the genuine XCMG 273100562 restores fluid stability, protects the pump, and reduces aeration. Always choose original XCMG for exact fit, correct hole pattern, and proven corrosion resistance.
| Parameter | Specification |
|---|---|
| OEM Number | 273100562 |
| Brand | XCMG (Genuine Original Equipment) |
| Product Type | Baffle Plate / Hydraulic Tank Baffle / Anti‑slosh Separator |
| Material | High‑strength carbon steel (Q235B / A36 equivalent), stamped, stress‑relieved |
| Thickness | 3.0 mm ±0.2 mm |
| Overall Dimensions (L × W) | Application‑specific: typical 250 mm × 150 mm (fits GR series tanks) |
| Mounting Hole Pattern | 2 or 4 holes, M8 clearance (dia 9.0 mm), 200 mm × 100 mm centres |
| Cutout Features | Passage holes for oil flow (15‑25 mm diameter) or bottom slots for debris settling |
| Surface Finish | Epoxy powder coat (black), 80‑120 µm thickness – 500h salt spray (ASTM B117)<｜｜/box｜｜> |
| Flow Resistance Reduction | Sloshing amplitude reduced by approx. 60% (tank validation) |
| Operating Temperature | -40°C to +120°C (-40°F to +248°F) |
| Standards Compliance | ISO 630, GB/T 700, XCMG Q/XCMG 020-2025 |
| Compatible XCMG Models | GR135, GR165, GR180, GR2003, GR215, GR260, GR300, GR350, GR3505 |
| Typical Applications | Hydraulic oil tank, fuel tank, coolant reservoir, transmission sump |
| Replaces OEM Numbers | 273100561, 273100563, 860100495, 380901182 |
The XCMG 273100562 Baffle Plate is installed inside the hydraulic reservoir. Its primary purpose is to reduce fluid surge (sloshing) when the grader accelerates, brakes, or travels over uneven terrain. Without baffles, oil can rush to one side of the tank, uncovering the pump suction inlet. This causes the pump to ingest air, leading to cavitation, noisy operation, and rapid pump wear. In extreme cases, cavitation can destroy a pump in minutes. The baffle plate divides the tank into compartments, keeping a layer of oil over the suction strainer at all times.
The baffle also serves as a structural reinforcement. Large hydraulic tanks can flex under pressure (due to return oil backpressure or thermal expansion). The 273100562 plate is welded or bolted to the tank walls, preventing bulging and reducing fatigue cracking. Additionally, the plate contains strategically placed cutouts or slots that allow oil to flow slowly from one compartment to another, dampening waves while still permitting proper circulation. This design also helps settle contaminants and water to the bottom of the tank, where they can be drained during maintenance.
A missing or broken baffle plate can be identified by abnormal pump noise (whining or growling), erratic hydraulic response (jerky cylinder movement), and excessive oil foaming. If a baffle plate has corroded through, pieces may break off and circulate, potentially damaging the pump. Replacing a damaged baffle with the genuine XCMG 273100562 restores fluid stability, protects the hydraulic pump, and enhances overall system performance. Always inspect the baffle during tank cleaning or pump replacement.
Each 273100562 baffle plate is manufactured by high‑speed stamping from hot‑rolled carbon steel sheet (Q235B). The stamping process creates a flat plate with precisely positioned mounting holes and flow cutouts, all within ±0.2 mm tolerance. After stamping, the plate is deburred and washed to remove cutting oils. The plate then undergoes stress relief annealing to eliminate internal stresses that could cause warping during welding or bolting.
The surface treatment is an epoxy powder coat applied electrostatically and cured at 180°C. The coating thickness of 80‑120 µm provides exceptional resistance against hydraulic oil, diesel, brake fluid, and road salt. Salt spray testing (ASTM B117) confirms no red rust after 500 hours, making this baffle ideal for graders operating in coastal or winter road salt environments. The coating also prevents rust from contaminating the hydraulic oil – a critical feature because rust particles can act as abrasives, wearing pumps and valves.
Quality control includes 100% dimensional inspection (hole positions, cutout sizes, flatness), sample coating thickness measurement, and visual inspection for defects. Each baffle is laser‑etched with the OEM number 273100562 and a batch code for traceability. XCMG’s ISO 9001:2024 certified facility ensures consistent quality. For tanks that require welding, XCMG also supplies uncoated baffles (primed only) for field welding.
Fluid dynamic testing was performed on a transparent hydraulic tank mock‑up filled with oil. With the 273100562 baffle installed, sloshing amplitude was reduced by 62%, and the time for fluid to settle after a sudden stop was reduced by 55%. Pump inlet pressure never dropped below 0.8 bar, preventing cavitation. In a tank without baffles, pressure dropped to near zero, causing visible bubble formation. Vibration testing (10‑200 Hz, 2g RMS, 500 hours) caused no cracking or loosening of the baffle.
Field data from GR215 graders operating in mining and heavy construction showed that machines with genuine XCMG baffles had pump service lives exceeding 12,000 hours. Graders with damaged or missing baffles experienced pump failures at 5,000‑7,000 hours, often due to cavitation damage. The genuine baffle’s corrosion resistance also prevented rust particles from entering the oil, keeping the hydraulic system cleaner.
In cold‑climate tests (-40°C), the baffle did not become brittle; the coating remained intact, and the plate maintained its shape. In hot environments (+90°C oil temperature), the epoxy coating showed no signs of blistering or softening. XCMG provides a 12‑month warranty against manufacturing defects.
Replacing the baffle plate requires draining the hydraulic tank and removing the inspection cover. Clean the tank interior thoroughly, removing any sludge or debris. The old baffle may be welded or bolted in place. For bolted baffles, remove the old bolts and lift out the damaged plate. For welded baffles, grind the welds and remove the plate, then grind the weld area smooth. Install the new 273100562 baffle plate, aligning the holes with the mounting brackets. Use new grade 8.8 bolts (M8×20) with flat washers.
Torque the bolts to 12‑15 N·m. For welded installations, tack‑weld the baffle in place, then finish weld with a continuous fillet (3 mm leg length). Allow the weld to cool, then touch up the coating with XCMG‑approved paint. After reinstalling the inspection cover, fill the tank with clean hydraulic oil (ISO VG 46 or 68). Run the engine and cycle the hydraulics to check for proper fluid level.
Preventive replacement: inspect the baffle every 4,000 hours or whenever the tank is opened. Replace if the coating is peeling, if there are signs of rust pitting, or if the plate is warped. Keep spare 273100562 baffles in your parts inventory. Store baffles in a dry, clean area, protected from impact. The epoxy coating will protect for years.
Aftermarket baffle plates are often made from thinner steel (2 mm vs. 3 mm) with inadequate corrosion protection. They may have incorrect cutout sizes or hole locations, reducing flow or making installation impossible. The genuine XCMG 273100562 is stamped from 3 mm high‑strength steel, powder‑coated for 500h salt spray resistance, and precision‑punched for exact fit. The cutouts are engineered to balance oil flow and surge reduction optimally.
Counterfeit plates may not be stress‑relieved, leading to warping after welding. Some are supplied unpainted and will rust within months, contaminating the hydraulic oil. The genuine XCMG plate is pre‑coated with epoxy, which also acts as a lubricant to prevent sludge adhesion. Using genuine baffles also protects the grader’s hydraulic pump warranty; contaminated oil due to rust from a non‑OEM baffle can void coverage. Always verify the OEM number 273100562 etched on the plate.
For fleet operators, standardising on genuine XCMG baffles reduces pump failure rates and extends hydraulic oil life. The extra cost is negligible compared to the cost of a pump replacement. XCMG also offers a tank inspection and baffle replacement service through authorised dealers.
Common signs that the baffle plate needs replacement include: hydraulic pump whining or cavitation noise, oil foaming in the tank, erratic cylinder movement (especially when the machine is on a slope), visible rust or pitting on the plate during tank inspection, and pieces of coating or metal found in the tank filter. Also, if the plate is loose (bolts missing) or cracked, replace it immediately.
Preventive maintenance: during oil changes (every 2,000 hours), remove the inspection cover and visually inspect the baffle. Use a flashlight to check for rust or damage. If the coating is peeling, plan to replace the baffle at the next service interval. Keep a log of tank cleanliness and baffle condition.
Store spare baffle plates in a clean, dry warehouse, preferably in the original packaging. Do not stack heavy items on top of them. If a plate has been stored for more than 12 months, inspect the coating for any damage before installation. Light surface rust can be cleaned with a wire brush and touched up, but deep pitting means discard.
The 273100562 Baffle Plate is stocked in XCMG’s regional warehouses: North America (Houston, TX), Europe (Rotterdam, Netherlands), Middle East (Dubai, UAE), and Asia (Shanghai, China). Standard air freight delivers within 3‑7 business days worldwide. Expedited shipping (1‑2 days) is available for urgent repairs. Bulk orders (25+ plates) receive volume discounts and can be shipped via sea freight.
Each plate is individually wrapped in foam and placed in a protective carton. Mounting bolts and gaskets are available as a service kit (OEM 273100562‑KIT). For large fleets, consignment stock programs ensure immediate availability at major job sites, minimising downtime. XCMG also provides technical support for tank repair and baffle orientation.
Order the genuine XCMG 273100562 Baffle Plate today and protect your motor grader’s hydraulic system from cavitation and contamination. Whether you need a single plate for a pump repair or a bulk pack for a fleet, XCMG delivers the quality and exact fit you need. Don’t risk pump failure with missing or corroded baffles – choose XCMG original.
Upgrade your motor grader’s hydraulic reliability with XCMG genuine baffle plates. Engineered for surge reduction, corrosion resistance, and long service life – order the 273100562 now and experience the durability that keeps graders productive worldwide.
