1. Location
  2. Home
  3. Products
  4. CATERPILLAR
  5. CAT 330

Caterpillar J-Series Excavator Adapters - Heavy-Duty Weld-On Adapters for E307 to E394 Excavators

  1. Home
  2. Caterpillar J-Series Excavator Adapters - Heavy-Duty Weld-On Adapters for E307 to E394 Excavators
Caterpillar J-Series Excavator Adapters - Heavy-Duty Weld-On Adapters for E307 to E394 Excavators

Ensure the strength of your bucket with our high-quality Caterpillar J-Series Excavator Adapters. Supporting models from E307 to E394, our weld-on adapters feature precision gaps from 13mm to 100mm. Available in standard and Heavy-Duty (HD) versions for part numbers like 6Y3254 and 6I6354. Factory-direct pricing and global shipping. Contact us for a full G.E.T. catalog today!

Cat® J-Series Excavator Adapters — The Foundation of High-Performance Bucket Systems

Cat® J-Series Excavator Adapters — The Foundation of High-Performance Bucket Systems

Our Caterpillar J-Series Excavator Adapters serve as the structural foundation of a high-performance bucket system. Engineered for superior weldability and maximum structural integrity, these weld-on adapters are designed to fit the full range of Cat® earthmoving equipment, from mini-excavators like the E30 up to massive mining shovels like the E394. Whether you require standard or Heavy-Duty (HD) reinforced variants, our adapters provide a precision fit for J-Series side-pin teeth, ensuring optimal force distribution and protecting your bucket's leading edge from premature wash and abrasive wear.

1. Core Advantages

  • Superior Weldability Profile: Cast from premium-grade structural alloy steel with extremely low-impurity content, ensuring excellent weld penetration and crack-resistant bonding to the bucket's carbon-plate cutting edge.

  • Precision J-Series Nose Taper: Manufactured to strict OEM dimensional tolerances to ensure a snug, flush fit with the inner tooth pocket. This minimizes structural nose wash and prevents excessive pin shear.

  • Heavy-Duty (HD) Reinforcement: Available with thicker profiles and reinforced side shanks for severe high-abrasion applications, significantly extending the operational service life of the entire Ground Engaging Tools (G.E.T.) assembly.

  • Thorough Heat-Treated Durability: Every adapter undergoes rigorous structural through-hardening and specialized tempering to achieve the ideal balance of surface hardness (resistance to wear) and core toughness (resistance to high-impact fracturing).

2. Technical Specifications & Adapter Part Numbers

Machine Model ReferenceAdapter Part Number OptionsLip Thickness (Gap Size)J-Series Size
E30 / 416 - 438 Backhoes119-3205 / 119-320413 - 25 mmJ200
E70 / 307 / 4466Y32224 / 6Y3224HD22 - 25 mmJ225
E311 / E312 / E120B6Y3254 / 119-325325 - 32 mmJ250
E200B / 315A / 317A3G6304HD / 8E949030 - 38 mmJ300
E240 / 320A / 320B3G8354HD / 6I635440 mmJ350
E325A / E325B6I6404 / 7T340445 mmJ400
E330 / E300B / 235159-0464 / 8E6464HD50 mmJ460
E345 / E350 / 2459J0174 / 6I655460 - 65 mmJ550
E365 / E375A6I6604 / 113-960475 - 80 mmJ600
E375 Mining4T470476 mmJ700
E394 Heavy Mining ShovelLC800-100100 mmJ800

3. Key Application Highlights

  • General Construction & Utility: Deploying the J250/J350 series adapters (e.g., 6Y3254 / 6I6354) on mid-sized machinery provides reliable, long-term performance for urban trenching, utility placement, and general earthmoving.

  • Heavy Infrastructure & Roadworks: Utilizing reinforced Heavy-Duty options (such as 3G6304HD) provides the mechanical stability required to absorb the increased breakout force needed when slicing through highly compacted clays and rocky soils.

  • Mining & Massive Quarrying: Deploying large-scale J600 to J800 series adapter clusters (e.g., 6I6604 / LC800-100) ensures stable, high-volume uptime during heavy overburden stripping and mass material handling.

4. Field Welding & Technical Alignment Protocol

Technical Pre-Heating Guide for Field Welder Technicians:
• Bevel and Gap Integrity: Before welding, clean the bucket lip thoroughly to remove dirt, grease, and old weld spatter. Verify your bucket's exact cutting-edge thickness matches the adapter's lip gap specification. If the adapter fit is loose, avoid forcing alignment by filling gaps with excess weld metal; use proper shims or choose the correct part number to prevent high-stress concentration points.
• Thermal Pre-Heating Protocol: Due to the high alloy content of the cast steel adapter and the high carbon index of the bucket lip, always pre-heat the weld zone uniformly to 150°C–200°C before applying the root pass. Maintain interpass temperatures and allow the finished weld assembly to cool slowly under thermal insulation blankets to avoid hydrogen micro-cracking at the heat-affected zone (HAZ).

5. Commercial Inquiry & Global Logistics

  • Supplier Identification: Xuzhou Sinoswift Import & Export Co., Ltd.

  • Contact/Mobile Support: +86 13701956981

  • Email Address: [email protected]

  • Logistics Framework: Full Container Load (FCL/LCL) Sea Freight support and Worldwide Expedited Delivery networks for Heavy G.E.T. Components.

All original equipment manufacturer names, registered trademarks, brand identifiers, and machine model designations are utilized strictly for compatibility matching and field cross-referencing purposes. Extend your bucket shell longevity and maintain ideal structural tooth alignment. Contact our engineering desk today to confirm your lip profiles and secure a direct factory price quotation!

Hot Recommendations