HKM QC45 Quick Coupler

QC45 Quick Coupler

The QC45 model Quick Coupler is designed for 40 to 49 ton class excavators. With a working weight of 750 kg, it is engineered to handle large attachments in heavy-duty environments. The coupler measures 1200–1300 mm in length, 630–650 mm in height, and 620–660 mm in width. It supports pins with diameters of 110–120 mm and provides a pin center axis distance of 400–440 mm. Operating at 30–40 bar hydraulic pressure with a flow requirement of 10–20 L/min, QC45 ensures robust, safe, and efficient attachment changes in demanding conditions.

Benefits

• Minimized Downtime: Instant, single-operator attachment changes keep your workflow uninterrupted.
• Lower Operating Costs: Reduce equipment fleet size and labor requirements to save on project expenses.
• Improved Safety: Dual-lock pins and spring-loaded circlip system provide redundant security against accidental release.
• Maximum Versatility: One coupler handles breakers, buckets, rippers, cutters and more. No adapter kits needed.
• Low Maintenance: Sealed bearings and consolidated grease points cut daily upkeep to minutes.
• Extended Service Life: Premium steel and precision machining enhance both coupler and attachment longevity.

Application Areas

• Multi-Attachment Workflow: Rapidly switch between buckets, breakers, rippers, drum cutters, crushers and grapples without leaving the cab.
• General Construction & Earthworks: From utility trenching to site grading—keeps operators productive on mixed-attachment jobs.
• Demolition & Recycling: Quick changes between breaker and crusher attachments accelerate debris removal and on-site crushing.
• Landscaping & Utilities: Seamlessly move from trenchers to augers to grading buckets for pipeline, irrigation and hard-scape work.
• Civil & Road Maintenance: Ideal for municipal crews needing fast transitions between pavement saws, planers and sweepers.

Key Features

• Premium Manganese Steel Body: High strength and wear resistance withstands heavy impact and abrasion.
• Spring-Loaded Circlip & Dual-Lock Pin: Redundant safety system locks the attachment under pressure, preventing accidental release.
• Universal Compatibility: Engineered to fit all major excavator makes and models via adjustable pin centers and separation fits.
• Lean Maintenance: Sealed bearings and consolidated greasing points slash daily upkeep to minutes.

Technical Specifications