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 is 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.

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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.

Category/Model UnitJT-00JT-01JT-02AJT-02BJT-04JT-06JT-08JT-10JT-14JT-17
Length L2mm440527550580590750950105011001150
Width Wmm158270145-175145-175160-230220-270300-340550-600602-666610-760
Height H1mm270325310310340460510600620630
L1 Pins center distancemm90-125180-230230-280260-310260-320350-430430-510490-560550-600570-620
Pin diameter Dmm25/3035/40454550/5560/6570/80100100/110100/110
H Vertical pins center distancemm194227200200219308336370380-390380-390
Working pressurebar25-30025-30025-30025-30025-30025-30025-30025-30025-30025-300
Necessary flowLpm15-2515-2515-2515-2515-2515-2515-2515-2515-2515-25
Weight kg3445656578200316620600-720600-720
Excavatorton0.8-22-44-64-66 -910-1618-2526-3030-4040-52

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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.