HKM QC20 Quick Coupler

The QC20 Quick Coupler is specifically designed for carrier machines ranging from 17-23 tons. With an operating weight of 300 kg, it features a pin center distance of 305-315 mm and a pin diameter of 70-80 mm. Measuring 970-1000 mm in length, 500-520 mm in height, and 470-510 mm in width, it ensures agility and safety on the field. Its robust structure guarantees high performance even under tough conditions.

HKM Quick Coupler Catalogue_2025.pdf (4.77 MB)

HKM Hızlı Ataşman Bağlayıcılar Katalog_2025.pdf (4.78 MB)

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QC20 Quick Coupler

The QC20 model Quick Coupler is designed for excavators in the 17 to 23 ton range. With a working weight of 300 kg, it offers the strength and safety needed for mid-to-heavy-duty operations. The body dimensions: 970–1000 mm in length, 500–520 mm in height, and 470–510 mm in width ensure a solid fit and robust performance on demanding job sites. It accommodates pin diameters of 70–80 mm and a pin center axis distance of 305–315 mm. Operating at 30–40 bar pressure and requiring an oil flow rate of 10–20 L/min, QC20 enables smooth, safe, and efficient attachment changes across various applications.

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

Carrier Weight (ton)	17–23
Operating Weight (kg)	300
Length A (mm)	970–1000
Height B (mm)	500–520
Width C (mm)	470–510
Pin Center Axis Distance D (mm)	305–315
Pin Diameter E (mm)	70–80
Working Pressure (bar)	30–40
Oil Flow (l/min)	10–20