As a trusted 50 Ton Excavator Manual Quick Coupler Manufacturer, we provide robust and cost-effective coupling solutions designed for heavy-duty applications.
Our manual quick couplers are engineered for exceptional reliability and ease of use, allowing operators to switch attachments safely and efficiently without leaving the cab.
- Reinforced Q355B / NM400 Steel: The main body is manufactured using ultra-thick high-tensile steel to prevent structural deformation under the massive breakout force of 50-ton excavators.
- Forged 40Cr Steel Pins: We use heavy-duty forged and induction-hardened pins (110mm-130mm diameter) to ensure the attachment stays securely locked without play.
- Double-Safety Locking System: Features a high-strength adjustable screw mechanism complemented by a manual safety locking pin. This ensures the bucket or breaker remains attached even under severe vibration or unexpected carrier movement.
- Zero-Play Design: Our precision-machined hooks provide a tight grip on the attachment pins, reducing wear on both the coupler and the bucket.
Perfectly Fits 50-Ton Class Carriers:
- CAT: 345, 349, 352 series.
- Sany: SY485H, SY500H.
- Komatsu: PC450, PC490, PC500LC.
- Volvo: EC480D/E, EC530.
- Doosan: DX490, DX530LC.
Every coupler is shipped as a Full-Set Ready-to-Install kit:
1x Heavy Duty Manual Coupler
2x High-Strength Mounting Pins
1x Adjusting Wrench
1x Safety Locking Pin
12-Month Structural Warranty
We offer OEM services and custom solutions to meet specific project requirements. For a durable coupler that combines performance with value, contact our factory today for a competitive quote.




