Double Lock Hydraulic Quick Coupler

Compared with a traditional quick coupler, we add another auto-lock on its front hitch ensuing double safety. Independent hydraulic system, the front lock still works well even when inner leakage happens. The front lock will lock the pin from dropping off when the rear tiger mouth or cylinder rod broken.

Main Advantages

  1. Fit to 2.5-90 ton machine; Q345B material with advanced mechanical design; Long service life.
  2. Driven by a hydraulic system, the operator can easily switch attachments by turning on the switch in the cab.
  3. Equipped with a check valve on the cylinder, the attachment will not drop off even when some failures happen like hoses burst.

Brochures Download

Specification – Hydraulic Quick Coupler(Double Locking)

Please check the following specifications to choose the right hydraulic breaker model. Tell us the brand and model of your excavator, We are very glad to help you to select the right quick coupler.

Oil pressurebar25-30025-30025-30025-30025-30025-30025-300
Operating flowlpm15-2515-2515-2515-2515-2515-2515-25
Excavator weightton1.5-34-66-912-1617-2329-3630-40
Pin diametermm20-4040-4545-6060-7070-8090-100100-110

Product Images & Video

Main Advantages of Hydraulic Quick Coupler(Double Locking)

Excavator bucket quick coupler, also named as quick hitch coupler, quick hitch, bucket pin grabber can quickly connect various attachments (bucket, hydraulic breaker, plate compactor, log grapple, ripper, etc…) on excavators, which can expand the scope of use of excavators and can save time and improve working efficiency.

  • Driven by hydraulic oil, operate efficiently
  • Double Safety System: Rear safety hook and hydraulic lock can hold the attachment tightly to prevent it from falling off even if the front hitch or cylinder is broken suddenly


Through 10 years of digging in research and development, JiangTu Company achieved more than 20 patents such as invent/design patent successively and received CE, ISO, and SGS certificates from 2012 to 2021 and now started a new chapter to explore the global market.