Upgrade your machine uptime with our high-strength interchangeable buckets for Caterpillar CAT 330D and 336D excavators. Ranging from 1.4m³ rock profiles to 1.6m³ earthmoving capacities, our buckets utilize premium NM400/NM500 steel for peak structural durability in quarries and mining. Factory-direct wholesale pricing and global export. Request your technical quote today!
Our Caterpillar CAT 330D Interchangeable Series Buckets are designed to meet the rigorous production and severe-duty reliability standards of 30-ton to 36-ton class heavy hydraulic excavators. Fully optimized for the CAT 330D, 330D L, 336D, and 336E platforms, these buckets are available in varying capacities—from 1.4 m³ for severe rock mining to 1.6 m³ for high-volume earthmoving. Precision-manufactured to match Caterpillar’s aggressive digging kinematics, this bucket series ensures optimized breakout forces, fast cycle filling times, and minimized maintenance overhead in high-impact environments.
Dynamic Material Rollback Geometry: Engineered with a specialized dual-radius profile that maximizes the powerful hydraulic profile of the CAT 330D. The design accelerates material entry into the bucket shell, lowering dragging resistance and reducing machine fuel consumption.
Premium Hardox/NM Wear Protection: Critical high-friction and high-impact areas—including the lip cutting edge, vertical side cutters, and bottom heel runners—are built from NM400 / NM500 or Hardox wear-resistant steel.
Flawless OEM G.E.T. Alignment: Pre-fitted with heavy-duty Caterpillar style weld-on adapters and matching J-Series side-pin bucket teeth, ensuring a zero-play fitment and straightforward field replacement.
Rigid Top Box Section Bracket: The upper mounting chassis features an integrated heavy box structure with wrap-around gusset plates, preventing structural flexing and wing cracking under maximum breakout loads.
| Specification Parameter | Heavy-Duty Earthmoving Variant | Severe Rock Mining Variant |
|---|---|---|
| Compatible Models | CAT 330D, 330DL, 336D, 336DL, 336E | CAT 330D, 336D Mining Class, 336GC |
| Bucket Capacity Range | 1.5 m³ – 1.6 m³ (SAE Heaped) | 1.3 m³ – 1.4 m³ (SAE Heaped) |
| Recommended Application | Topsoil, Clay, Mixed Sand, Compacted Dirt | Shot-Rock, Blasted Granite, Slag, Quarry |
| Lip Edge Thickness | 40 mm High-Tensile Base Plate | 50 mm Thickened Hardened Base Lip |
| G.E.T. System Type | CAT J350 / J400 Standard Chisel Tips | CAT J350 / J400 Rock Chisel / Tiger Tips |
| Side Protection | Bolt-On Side Cutters / Shrouds | Weld-On Side Shrouds & Side Wear Buttons |
Mass Civil Infrastructure: Deep mainline trenching, foundational mass excavation, and high-volume truck loading.
Quarry & Aggregates: Loading fractured limestone, basalt, shot-rock, and abrasive river gravel run-offs.
Open-Pit Mining Operations: Stripping heavy compacted overburden and handling dense mineral extraction layers.
Reinforced Underbelly Strips: Thick horizontal wear plates shield the exterior bucket bottom from abrasive tracking during heavy scraping and leveling operations.
CNC Precision Line-Bored Bushings: Ear plates are line-bored using advanced CNC machinery to match original CAT 330D bucket pins perfectly, preventing arm linkage wobble and oil-seal damage.
Chocky Bar & Button Protection: Rock variants feature high-chromium white iron wear blocks protecting the high-stress corner welds from thinning.
All manufacturer names, model series, and part numbers are used for identification purposes only. These buckets are optimized for heavy-duty excavation. For extreme abrasive or specialized geological conditions, please consult our engineering team for custom structural solutions.