Dual-Lock Safety Mechanism
Why Hitachi Owners Choose Our Couplers? Every quick hitch is precision-machined to match the specific geometry of Hitachi ZX series booms.
Safety First: We integrate a high-pressure hydraulic check valve to maintain clamping force even during catastrophic hose failure.
Material Integrity: The coupler body is forged from Q355B high-tensile steel, while the locking hook uses HG60 (Hardox equivalent) to prevent deformation under the breakout forces of a 30-ton excavator.
Wear Protection: All pin bores undergo induction hardening (HRC 45-50) to match the hardness of Hitachi’s original bushings, reducing abrasive wear.
Installation & Maintenance Guide
Fitment Tip: Always measure your original Hitachi bucket pin diameter and ear width before ordering. A tolerance of ±1mm is acceptable for the pin, but the ear width must be matched exactly to prevent side-loading on the boom. Maintenance: Grease the locking cylinder every 10 working hours. Inspect the mechanical safety pin before every shift to ensure it fully engages with the locking hook.
| Hitachi Model | Exc. Weight | Pin Diameter (mm) | Center Distance (mm) | Stick Width (mm) |
|---|---|---|---|---|
| ZX60 / ZX65 | 6 Ton | 45 mm | 310 mm | 178 mm |
| ZX70 / ZX75 | 7-8 Ton | 50 mm | 340 mm | 185 mm |
| ZX120 / ZX130 | 12-13 Ton | 65 mm | 400 mm | 255 mm |
| ZX200 / ZX210 | 20-22 Ton | 80 mm | 450 – 485 mm | 310 mm |
| ZX330 / ZX350 | 30-35 Ton | 90 / 100 mm | 530 – 580 mm | 385 mm |
As a specialized manufacturer of excavator quick couplers, we provide premium hydraulic quick hitch and manual quick coupler solutions specifically engineered for Hitachi excavators.
Our Hitachi-compatible quick couplers feature robust construction with high-grade steel (Q355 with strict heat treatment) and a secure locking system, ensuring safe attachment changes and enhanced job site productivity. With rigorous testing and quality control, we deliver reliable performance that reduces downtime and operating costs.
Offering both standard and custom designs, we are your trusted partner for durable, cost-effective quick couplers.
Contact us today for OEM opportunities and discover why contractors worldwide choose our Hitachi-certified solutions.






