Compaction Attachments Excavators CE Certified

HN39 Vibratory Compactor

Hydraulic soil compaction attachment for Excavators — vibratory plate or drum compactor, CE & ISO 9001 certified.

Models: HN3940 · HN3960 · HN3972

Compatible Carriers: Excavators

HCN HN39 Vibratory Compactor: CE-certified compactor for excavators. Ideal for soil compaction and road base preparation. Key specs — Width 1320/1830/2130 mm…

CE Certified ISO 9001:2015 HCN Manufactured 60+ Countries

The HN39 Vibratory Compactor from HCN Attachments Manufacture Co., Ltd is a heavy-duty skid steer / loader attachment engineered for global construction, municipal, and industrial OEM applications.

Typical specifications include Overall Width: 1320 / 1830 · Overall Length: 850 / 850 · Overall Height: 670 / 670. Mounting interfaces, hydraulic flow, and working width are configurable to your carrier model.

Request technical drawings and an export quote at hcn-atta.com · CE certified · ISO 9001:2015 · worldwide shipping.

Technical Specifications

Specification HN3940 HN3960 HN3972
Overall Length (mm) 850 850 850
Overall Width (mm) 1320 1830 2130
Overall Height (mm) 670 670 670
Drum Diameter (mm) Φ590 Φ590 Φ590
Weight (Theoretical) (incl. Mount) (Kg) 760 880 960
Centrifugal Force (KN)@(L/Min) 31 @ 60 37 @ 60 40 @ 70
Hydraulic Flow (L/Min) 60-70 60-70 60-70
Maximum Allowable Pressure (MPa) 20 20 20
Compatible Carriers Excavator Excavator Excavator

Specifications may vary by model. Custom configurations available. Request exact spec sheet →

What Is It?

The HCN HN39 Vibratory Compactor is a compaction attachments designed for installation on Excavators. It is manufactured at HCN Attachments' ISO 9001:2015-certified facility in Xuzhou, China, and supplied to contractors, rental fleets, OEM partners, and equipment distributors in more than 60 countries. When sourcing vibratory compactor, soil compaction machine, construction compactor, hydraulic plate compactor, trench compactor, vibratory plate compactor, excavator compactor for export or fleet replacement, verify carrier weight class, hydraulic output, and mounting interface before order confirmation — HCN provides free compatibility checks on request.

HCN compaction attachments — vibratory plate compactors, trench compactors, drum rollers, and tamping rammers — deliver reliable high-frequency soil compaction for skid steers, wheel loaders, and excavators. These hydraulic soil compaction machines meet CE and ISO 9001:2015 standards and are used by contractors in 60+ countries for road construction, utility trench backfill, and foundation preparation.

Available model designations: HN3940, HN3960, HN3972. Specification values in the table below apply to the listed model range. If your carrier falls outside the published weight class, contact HCN engineering with the machine make, model, operating weight, and pin-to-pin dimensions — custom bracket fabrication is typically available within 15–30 working days.

HCN HN39 Vibratory Compactor units leave factory with CE conformity documentation, operator manual, and QC records. Standard in-stock configurations ship within 7–15 working days; custom specifications require 15–30 working days. Export terms are quoted FOB Qingdao or Shanghai unless otherwise agreed. Submit an RFQ with your machine model, working conditions, and destination country for pricing, lead time, and bracket fit confirmation.

Applications

The HN39 Vibratory Compactor is specified on the following project types. Each application below reflects real field use — not generic marketing claims.

Utility trench backfill compaction

On this type of project, the HN39 Vibratory Compactor reduces cycle time compared with manual methods by allowing the operator to work from the carrier cab. Utility trench backfill compaction after pipe, cable, or conduit installation in infrastructure projects

Subbase and sub-grade compaction

On this type of project, the HN39 Vibratory Compactor reduces cycle time compared with manual methods by allowing the operator to work from the carrier cab. Subbase and sub-grade compaction during road construction, resurfacing, and pavement rehabilitation

Foundation and embankment compaction

On this type of project, the HN39 Vibratory Compactor reduces cycle time compared with manual methods by allowing the operator to work from the carrier cab. Foundation and embankment compaction on civil engineering, residential, and commercial building sites

Compacting granular fill — sand, gravel, and crushed stone —

On this type of project, the HN39 Vibratory Compactor reduces cycle time compared with manual methods by allowing the operator to work from the carrier cab. Compacting granular fill — sand, gravel, and crushed stone — in confined or hard-to-reach areas

Dam construction and earthwork compaction

On this type of project, the HN39 Vibratory Compactor reduces cycle time compared with manual methods by allowing the operator to work from the carrier cab. Dam construction and earthwork compaction where large roller compactors cannot access

Features & Advantages

Engineering and procurement teams typically evaluate the HN39 Vibratory Compactor against these design and manufacturing attributes:

  • Eccentric shaft machined from 42CrMo alloy steel — rated 5,000+ operating hours before overhaul
  • Direct-drive hydraulic motor eliminates belts, chains, and gearboxes — zero drivetrain maintenance
  • Hardox 400 wear plate on base — replaceable without welding, extends body life by 2–3×
  • Flow-sharing valve maintains compaction frequency even at partial throttle or variable carrier output
  • CE marked to EN13309 safety standards; includes operator manual and hydraulic hose set

Technical Specifications

Factory-published values for the HN39 Vibratory Compactor. Confirm final configuration against your carrier data sheet before purchase order release.

Specification HN3940 HN3960 HN3972
Overall Length (mm) 850 850 850
Overall Width (mm) 1320 1830 2130
Overall Height (mm) 670 670 670
Drum Diameter (mm) Φ590 Φ590 Φ590
Weight (Theoretical) (incl. Mount) (Kg) 760 880 960
Centrifugal Force (KN)@(L/Min) 31 @ 60 37 @ 60 40 @ 70
Hydraulic Flow (L/Min) 60-70 60-70 60-70
Maximum Allowable Pressure (MPa) 20 20 20
Compatible Carriers Excavator Excavator Excavator

Specifications may vary by model. Custom configurations available. Request exact spec sheet →

Machine Compatibility

Compatible carriers
Excavators
OEM brands supported
Caterpillar (Cat), Komatsu, Hitachi, Volvo, Doosan, Hyundai, CASE, John Deere, Bobcat, Liebherr, Sany, XCMG, Kobelco, and 30+ other OEM brands
Hydraulic requirements
Compaction attachments require consistent oil flow to maintain vibration frequency. Verify the carrier's auxiliary hydraulic output before ordering.
  • Mounting interface: engineered to OEM pin dimensions for Excavators.
  • Send carrier make, model, operating weight, and pin-to-pin measurement for bracket confirmation before PO release.
  • Quick-attach and pin-on mounting options available depending on product line — specify coupler type in your RFQ.
  • Model range covered on this page: HN3940, HN3960, HN3972.

Plate Compactor vs. Trench Drum Compactor

Plate and drum compactors serve different site geometries. Match the attachment type to your compaction surface — not just centrifugal force rating.

Selection Criteria Plate Compactor Trench Drum Compactor
Contact surface Flat plate — full-width soil contact Cylindrical drum — compacts within trench width only
Best application Open areas, subbase, embankments, parking lots Utility trenches, narrow pipeline corridors
Soil disturbance Compacts surrounding undisturbed soil at edges Minimizes disturbance to trench sidewalls
Procurement note Higher area coverage per pass Specify drum width to match trench specification

Machine-Mounted Compactor vs. Walk-Behind Plate Compactor

Walk-behind compactors remain standard for small trenches. Carrier-mounted compactors are specified when lift thickness, trench depth, or daily area targets exceed walk-behind output.

Method Manual / Conventional Approach HCN Attachment
Typical use Walk-behind vibratory plate — operator on ground, limited to shallow lifts and small footprints Hydraulic plate or drum compactor on excavator/skid steer — compacts from cab, higher centrifugal force, reaches confined trenches via boom reach
When to specify Specify a machine-mounted compactor when Proctor density targets require 80 kN+ force, trench width exceeds walk-behind coverage, or production rate exceeds 200 m²/shift

How to Read the Specifications

When reviewing Compaction Attachments for a purchase decision, these parameters determine whether the unit will perform on your site:

Centrifugal Force (kN)
The primary measure of compaction power. Higher centrifugal force compacts deeper material lifts. HCN plate compactors range from 20 kN (mini excavator) to 160 kN (20–30 tonne excavators). Match to the required lift thickness and soil type.
Vibration Frequency (Hz / VPM)
Frequency affects which soil types are compacted most effectively. 25–35 Hz is optimal for cohesive soils (clay, silt); 35–50 Hz suits granular soils (sand, gravel). HCN's eccentric shaft design maintains consistent frequency across carrier flow rates.
Plate / Drum Width (mm)
Wider plates cover more area per pass, increasing productivity. Narrower plates (from 300 mm) fit narrow utility trenches. Match plate width to project requirements — HCN offers custom widths on request.
Amplitude (mm)
Larger amplitude penetrates deeper into the fill layer. HCN eccentric shafts are precision-balanced to maintain rated amplitude throughout the component service life.
Required Hydraulic Flow (L/min)
Compaction attachments require consistent oil flow to maintain vibration frequency. Verify the carrier's auxiliary hydraulic output before ordering.

Frequently Asked Questions

Factory Strength

21,000 m² manufacturing campus in Xuzhou ETDZ — CNC laser cutting, robotic welding, in-house heat treatment, and PLM-controlled production. 400+ models, 500+ patents, export to 60+ countries.

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Certifications

ISO 9001:2015, ISO 14001, ISO 45001, CE conformity on export lines, and National High-Tech Enterprise status. Full documentation available for tender and OEM audit submissions.

View certifications →

Real Application Cases

Documented deployments: highway compaction in Southeast Asia, airport snow management in Northern Europe, and open-pit rock breaking in Australia — with measurable results.

Read case studies →

Not sure which attachment fits your machine? Read our selection guide · Procurement FAQ

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Compaction Attachments — Resources for Buyers

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