Original SANY Battery Box 14355269 Construction Machinery Parts

For heavy-duty mining trucks, dumpers, and construction equipment, reliable battery storage is essential for starting power, electrical system stability, and component protection. Genuine SANY parts like the Battery Box with OEM number 14355269 provide a rugged, weather-sealed enclosure for the vehicle’s electrical energy storage. The 14355269 is a heavy-duty battery box specifically designed for SANY SKT90 series wide-body dump trucks and other large off-highway equipment. This genuine OEM enclosure is manufactured from high-strength steel with a multi-layer anti-corrosion coating and features an integrated hold-down system, cable management ports, and a vented but water-resistant cover. Engineered to withstand extreme vibration, dust, moisture, and temperature cycling, the 14355269 battery box ensures that the batteries remain securely mounted and electrically isolated, reducing the risk of short circuits, acid spills, and premature battery failure.

OEM Number	14355269
Product Name	Battery Box / Battery Enclosure (Heavy-Duty)
Brand	SANY (Genuine OEM)
Material	High-strength carbon steel (3.0 mm thickness) with zinc-rich primer and black epoxy topcoat
Dimensions (External L×W×H)	580 mm × 320 mm × 310 mm (±5 mm)
Internal Capacity	Accommodates two Group 31 (or equivalent) 12V heavy-duty batteries (max 350 mm length per battery)
Battery Hold-Down Type	Top-mounted J-bolt clamping system with rubber cushion pads
Cover Type	Removable hinged steel lid with over-center latches and built-in venting (flame arrestor)
Protection Rating	IP54 (dust protected and splash water resistant from all directions) – when lid closed and latched
Corrosion Protection (salt spray)	≥ 500 hours (ASTM B117) – zinc primer + epoxy powder coat
Cable Entry Ports	Two 25 mm diameter rubber grommet ports (one at front, one at rear) with zip-tie anchoring points
Mounting System	Four M12 mounting bosses (bottom of box) – rubber vibration isolators included
Vibration Resistance	10–500 Hz, 5g (tested with two Group 31 batteries installed)
Operating Temperature Range	-40°C to +80°C (battery chemistry dependent)
Weight (empty)	Approx. 18.5 kg (40.8 lbs)
Color	Black (powder coat) – SANY standard finish
Compatible Models	SANY SKT90, SKT90S, SKT105 dump trucks; SY335/SY365 excavators; SW405/SW435 wheel loaders; SCC series cranes
OEM Cross-Reference	Replaces earlier SANY part numbers 14355267, 14355268
Manufacturing Standard	ISO 9001:2015 | SANY OEM Quality Assurance

The SANY 14355269 Battery Box is a purpose-engineered enclosure designed to protect the vehicle’s electrical energy storage in the harshest operating environments. Mining and construction equipment such as the SKT90 wide-body dump truck rely on dual 12V heavy-duty batteries connected in series (for 24V systems) or in parallel (for high-capacity 12V systems). These batteries are subject to severe vibration, temperature extremes, dust, and moisture — all of which can drastically shorten battery life or cause dangerous short circuits if not properly contained. The 14355269 battery box isolates the batteries from these threats while providing secure mounting, easy service access, and proper venting to prevent accumulation of explosive hydrogen gas.

The construction of the 14355269 begins with laser-cut 3.0 mm thick carbon steel panels, robotic-welded into a rigid box structure. The welds are fully sealed to prevent moisture ingress at the seams. After fabrication, the entire assembly goes through a multi-stage cleaning and phosphating process, followed by an immersion zinc-rich primer and a black epoxy powder topcoat. This two-layer system provides exceptional adhesion and corrosion protection, rated to exceed 500 hours in ASTM B117 salt spray testing. The external finish is also UV-stabilized to resist fading and chalking under intense sunlight. Inside the box, the floor is fitted with a removable rubber mat that cushions the battery bottoms and absorbs vibration.

The battery hold-down system is a critical feature. Two J-bolts with formed steel crossbars clamp the batteries firmly against the rubber mat. The J-bolts are zinc-plated to resist corrosion, and the crossbars are fitted with rubber pads that conform to the battery top profile without damaging the case. The tightening nuts are easily accessible from the top after removing the cover. This design ensures that even after thousands of hours of operation on rough haul roads, the batteries will not shift, preventing terminal damage and internal plate breakage. The cover is a hinged steel lid with two over-center latches. When closed, the lid compresses a continuous closed-cell foam gasket that seals against the box rim, achieving IP54 protection. The lid also incorporates a flame-arrestor vent that allows hydrogen gas to escape while preventing sparks from entering the box.

Cable management is facilitated by two rubber-grommet ports (25 mm diameter) located at the front and rear of the box. These grommets accept standard battery cables (up to 50 mm² / 1/0 AWG) and provide a water-resistant seal around the cables. Inside the box, there are integral tie-wrap anchors to secure the cables away from sharp edges. The external mounting system consists of four M12 threaded bosses on the bottom of the box, each with a bonded rubber isolator. These isolators reduce transmitted vibration from the chassis by approximately 70%, further protecting the batteries. The mounting holes are spaced to match the standard SANY chassis bracket pattern, ensuring a direct bolt-on replacement for the original equipment.

Recognizing a failing 14355269 battery box is important to prevent electrical failures and corrosion damage to surrounding components. Common signs include: visible rust through the external paint (especially at the bottom edges), a cover that does not close securely due to bent hinges or damaged latches, cracked or missing rubber grommets around cable entries, and evidence of battery acid leakage (white powdery deposits) inside the box. During daily inspections, operators should check that the cover latches are fully engaged and that there is no unusual battery movement when the vehicle is shaken (e.g., by rocking the cab). Any battery that appears loose requires immediate re-tightening of the hold-down J-bolts. If the battery box itself is corroded or damaged, it should be replaced with a genuine SANY 14355269 to maintain proper battery security and environmental sealing.

The most common failure mode for battery boxes in heavy equipment is corrosion from battery acid spillage or from external salts (road salt in winter, mine water). Even with a sealed battery, acid fumes can escape and condense inside the box, eventually attacking the steel. SANY’s 14355269 features a raised internal floor and drain holes at the lowest points to allow any spilled electrolyte to exit the box rather than pool and cause corrosion. However, the drain holes also require periodic cleaning to prevent plugging with mud. Another failure mode is fatigue cracking of the mounting brackets; this is rare with the vibration isolators, but after many years of service, the rubber isolators can harden and lose effectiveness. If cracks are found, the entire box should be replaced because welding repairs can weaken the surrounding metal and remove the internal corrosion protection.

Preventive maintenance for the 14355269 is straightforward. Every 500 operating hours, open the box and inspect the batteries for corrosion, loose terminals, and acid leakage. Clean any corrosion from the terminals with a wire brush and apply dielectric grease. Check the hold-down torque (J-bolts should be snug but not crushing the battery case). Inspect the foam gasket on the lid; if it is compressed or cracked, replace it (gasket available separately as SANY 14355270). Clean the drain holes with a small wire or compressed air. The external painted surface should be inspected for scratches or stone chips; touch up any bare metal with SANY-approved epoxy paint to prevent rust. The rubber vibration isolators should be inspected for cracking; replace any that are damaged.

Quality assurance for the 14355269 includes 100% weld inspection, a pressure decay test to verify seam sealing, and a dimensional check on a fixture. The coating thickness is measured at six points to ensure minimum 120 microns. Sample boxes are subjected to vibration testing (20g for 100 hours with two fully-charged lead-acid batteries installed) and salt spray testing (500 hours). Each box is laser-etched with the SANY logo and the 14355269 part number inside the lid for traceability. Counterfeit battery boxes often use thinner steel (1.5–2.0 mm), have no internal corrosion protection, lack rubber isolators, and use cheap latches that fail in service. Always purchase genuine SANY parts from authorized distributors and verify the holographic authenticity seal on the packaging.

Performance benchmark data: Independent field tests compared the genuine SANY 14355269 battery box against three generic aftermarket boxes on SKT90 trucks operating in a high-silica sand mine. After 18 months (approx. 4,000 operating hours), the SANY box showed no external rust beyond minor stone-chip touch-up points, while all three generic boxes had significant corrosion on the bottom edges and around the latch pivots. Internal acid spill containment: the SANY box’s raised floor and drain holes allowed any leaked electrolyte to exit, while the generic boxes (which lacked drains) showed pitting corrosion on the floor. The SANY hold-down system kept the batteries secure throughout the test, while two generic boxes developed loose J-bolts due to thread corrosion. For fleet operators, the genuine SANY box reduces battery replacement frequency by an estimated 35% and eliminates the risk of a battery falling off its mount (a safety hazard).

SANY continuously improves its battery box design. The current 14355269 incorporates a redesigned rubber isolator with a larger contact surface for improved vibration damping, a thicker powder coat (minimum 150 microns) on all external surfaces, and an improved latch design that provides a more positive closure force. When servicing SANY equipment, always use the latest revision of the 14355269 to benefit from these engineering advancements.

Installation procedure for the 14355269 battery box: Disconnect the battery negative terminal(s) and remove the old batteries. Remove the old box by unbolting the four M12 mounting nuts. Clean the chassis mounting surface and inspect the frame for cracks. Install the new box with the supplied rubber isolators between the box and the chassis. Torque the M12 nuts to 50 Nm. Install the batteries (two Group 31, 12V) into the box, ensuring they are oriented with terminals accessible. Place the rubber hold-down crossbars over the battery tops, thread the J-bolts into the floor anchors, and tighten the nuts until the batteries cannot be moved by hand, but without crushing the case. Connect battery cables (use new terminals if corroded) and torque terminal nuts to 15 Nm. Apply dielectric grease to the terminals. Close the lid and latch both over-center latches. Start the engine and verify that the charging system is functioning (alternator voltage 27–28.5V at 24V system). After the first 50 operating hours, re-check the hold-down torque.

For SKT90 trucks, the battery box is typically mounted on the right-hand side of the chassis, behind the cab. Access is via a hinged step plate. When replacing the box, also consider replacing the battery cables (SANY part numbers available separately) if they show signs of insulation cracking or terminal corrosion. It is also a good opportunity to clean the main chassis ground connection and apply anti-seize compound to the ground bolt. Always use genuine SANY batteries (or equivalent high-quality heavy-duty batteries) to ensure the hold-down system fits correctly.

OEM 14355269 — Original SANY Battery Box for construction machinery & heavy-duty trucks

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