The quick coupler can considerably improve the excavator's performance.
| DEHNmini | 1,5–4 |
| DEHN02 | 4–6 |
| DEHN04 | 5–9 |
| DEHN06 | 9–19 |
| DEHN08 | 17–23 |
| DEHN10 | 23–35 |
| DEHN17 | 33–45 |
Monde DEHN excavator quick coupler: the hydraulic attachment-change system designed for excavators from 1,5 up to 45 tonnes, available in 7 serialized models covering the entire range of common construction machinery. The excavator quick coupler eliminates the need to manually change the coupling pins at every attachment change: the operator changes the bucket, hydraulic breaker, rake or any other attachment from the excavator cab, in less than a minute, without leaving the cab and without tools.
On a site with several types of work (excavation, demolition, leveling and ground compaction) the Monde excavator quick coupler turns a specialized machine into a versatile piece of equipment capable of performing all operations with the same booms, without bringing additional machines onto the site. Reducing the number of machines required and eliminating the dead time of manual attachment changes translate directly into lower operating costs and higher hourly productivity. Key advantages of the Monde DEHN excavator quick coupler
• Attachment change without leaving the cab: the Monde excavator quick coupler lets the operator change any hydraulic attachment directly from the cab, by operating a dedicated button or switch. Over an 8-hour shift with 5–10 attachment changes, saving 10–15 minutes per change means 1–2 hours of productivity recovered daily.
• 7 models: full coverage 1,5–45 tonnes. The DEHN range covers all classes of construction excavators: DEHNmini (1,5–4t) for mini-excavators, DEHN02/04 (4–9t) for compact excavators, DEHN06 (9–19t) for the medium class, DEHN08/10 (17–35t) for standard site excavators, and DEHN17 (33–45t) for heavy quarry and demolition excavators.
• Automatic locking with safety mechanism: the Monde excavator quick coupler features an automatic locking mechanism that prevents accidental detachment of the attachment during operation. The visual status indicator confirmed from the cab guarantees that the attachment is correctly locked before starting work, a critical safety requirement on sites with personnel in the vicinity of the machine.
• Compatible with any standard attachment: the Monde excavator quick coupler is designed for compatibility with the standard coupling geometry (pin diameter, center-to-center distance) specific to each tonnage class. Buckets, hydraulic breakers, sorting rakes, cleaning buckets, magnets and any other attachment with standard coupling mount directly onto the DEHN quick coupler without intermediate adapters.
“The Monde excavator quick coupler lets the operator change any hydraulic attachment directly from the cab, by pressing a button or a dedicated switch.”
• Wide range of working pressures: all DEHN models operate at pressures of 40–380 kg/cm², covering both older excavators with low-pressure hydraulic circuits and modern excavators with high-pressure circuits. The required oil flow of 10–20 L/min is available on the auxiliary circuit of most excavators in this class.
• Construction from high-quality materials: the Monde excavator quick coupler is manufactured for durability in continuous-duty operation on the most demanding sites. The locking elements and articulations are dimensioned for the loads specific to each tonnage class, with appropriate strength reserves.
• 60-month UZINEX warranty: extended coverage with spare parts in stock in Iași and nationwide technical support with a guaranteed 24–48 hour response time.
Technical specifications: Monde DEHN excavator quick coupler (7 models)
| Model | Excavator (t) | Ø pin (mm) | Pin center dist. (mm) | Cylinder dist. (mm) | Pressure (kg/cm²) | Flow (L/min) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| DEHNmini | 1,5–4 | 25–40 | 80–140 | 80–150 | 40–380 | 10–20 | 25–30 |
| DEHN02 | 4–6 | 45–50 | 155–170 | 230–270 | 40–380 | 10–20 | 50–60 |
| DEHN04 | 5–9 | 50–55 | 180–200 | 290–360 | 40–380 | 10–20 | 80–90 |
| DEHN06 | 9–19 | 60–70 | 232–315 | 380–420 | 40–380 | 10–20 | 120–130 |
| DEHN08 | 17–23 | 70–80 | 306–340 | 460–480 | 40–380 | 10–20 | 280–290 |
| DEHN10 | 23–35 | 80–90 | 325–350 | 473–540 | 40–380 | 10–20 | 450–530 |
| DEHN17 | 33–45 | 90–120 | 416–469 | 550–620 | 40–380 | 10–20 | 450–580 |
The correct model is selected based on the excavator's tonnage and the dimensions of the existing coupling pins. UZINEX engineers confirm the appropriate model for your specific excavator: free technical consultancy available . How the Monde excavator quick coupler works
The Monde excavator quick coupler replaces the classic manual-pin coupling system with a hydraulic mechanism operated from the operator's cab.
• Mounting on the boom: the DEHN excavator quick coupler is permanently installed on the excavator boom in place of the direct bucket coupling, using the same pins and the same coupling dimensions. Installation is a one-time operation, carried out by a technician in a few hours.
The Monde excavator quick coupler is most useful on sites where the same machine carries out several types of operations.
Building demolition combines the demolition proper with the hydraulic hammer.
Quarries and earthworks alternate between excavating rock with the hydraulic hammer.
• Attachment coupling: the operator positions the excavator so that the quick coupler aligns with the coupling lugs of the new attachment. They actuate the hydraulic command from the cab; the excavator quick coupler grips and automatically locks the attachment in 10–30 seconds.
• Lock verification: the visual and/or audible indicator in the cab confirms that the lock is complete and secure. The operator checks the status before starting work with the new attachment.
• Attachment release: when the work with the current attachment is finished, the operator positions the attachment on the ground, actuates the unlock command from the cab and withdraws the excavator. The attachment remains on the ground, ready for later use.
Applications for the excavator quick coupler
The Monde excavator quick coupler is most useful on sites where the same machine performs several types of operations on the same day or on consecutive days, the typical situation on civil construction sites, infrastructure works and complex demolitions.
Civil construction sites frequently alternate between excavating foundations (standard bucket), compacting the fill layer (vibratory plate), leveling platforms (wide cleaning bucket) and demolishing existing structures (hydraulic breaker). Without an excavator quick coupler, each attachment change requires the intervention of an additional worker with wrenches and 20–30 minutes of downtime. With the DEHN excavator quick coupler, the operator performs the change alone in less than a minute.
Building demolitions combine the demolition operation itself with the hydraulic breaker, debris collection with the sorting rake and material transport with the bucket, sometimes within the same workday. The Monde excavator quick coupler makes this versatility practical and economical, eliminating the need to bring a second excavator onto the site just for a different operation.
Quarries and earthmoving works alternate between excavating rock with the hydraulic breaker, loading material with the large bucket and compacting embankments. The DEHN17 excavator quick coupler (for 33–45t) is the standard equipment on heavy quarry excavators with diversified activity. How to choose the correct excavator quick coupler model
Selecting the correct DEHN model for the excavator quick coupler is based on three parameters of the excavator: operational tonnage, the diameter of the existing coupling pins, and the center-to-center distance between the coupling lugs.
The excavator tonnage indicates the probable DEHN model: a 15t excavator will almost certainly use DEHN06 (9–19t). But exact verification is based on the pin dimensions, because some excavators have coupling dimensions that do not exactly match the nominal tonnage class. UZINEX engineers verify compatibility with your specific excavator model (brand, model, year) before confirmation.
If you already own attachments purchased with standard coupling (buckets, breakers, rakes) the DEHN excavator quick coupler is compatible with the standard coupling geometry without modifying the existing attachments. The only condition is that the pin dimensions of the attachments fall within the range allowed by the chosen DEHN model. Frequently asked questions about the excavator quick coupler
Does the excavator quick coupler require modifications to existing attachments?
No. The Monde DEHN excavator quick coupler is designed for direct compatibility with attachments that have standard coupling: the same pin diameter and the same center-to-center distance specific to the tonnage class. Existing attachments compatible with your excavator mount directly onto the quick coupler without modifications. UZINEX engineers verify compatibility with the specific attachments of your application at the quotation stage. Does the excavator quick coupler reduce digging force compared to direct coupling?
The DEHN excavator quick coupler introduces additional mass (25–580 kg depending on the model) between the boom and the attachment, which proportionally reduces the digging force and the available lifting capacity. On excavators with a sufficient force reserve, the reduction is practically negligible. On excavators at the limit of their nominal capacity, UZINEX engineers calculate the exact impact of the chosen DEHN model on the available force before confirmation. What happens if the excavator quick coupler's hydraulic circuit fails during work?
The Monde DEHN excavator quick coupler features a locking mechanism that keeps the attachment fixed even in the event of hydraulic pressure loss: the attachment does not drop on a hydraulic failure. Deliberate unlocking requires active hydraulic pressure, so a circuit failure does not cause accidental detachment. This safety feature is the standard requirement for any excavator quick coupler used on sites with personnel in the area. Is the excavator quick coupler eligible for SEAP/SICAP public procurement?
Yes. UZINEX supplies industrial equipment and accessories for EU-funded projects and public procurement. Complete technical documentation (product datasheet, declaration of conformity) is provided on request. UZINEX is a member of the Enterprise Europe Network and of the Chamber of Commerce and Industry. Financing options are available on the credit and leasing page . Why UZINEX for the excavator quick coupler
The excavator quick coupler is a piece of equipment with a direct and measurable impact on the machine's daily productivity. Choosing the correct model and a supplier with full technical support are just as important as manufacturing quality.
• 60-month warranty: extended coverage for the Monde DEHN excavator quick coupler in continuous industrial use.
• Free compatibility check: UZINEX engineers confirm the correct DEHN model for your specific excavator, based on tonnage, coupling dimensions and existing attachments.
• Transport and installation included: delivery to destination, mounting on the boom, testing and operator training included in the price of the excavator quick coupler.
• Spare parts in stock in Iași: wear components for the DEHN series available immediately, with no waiting times that block sites.
• Nationwide technical support 24–48 hours: a network of technicians with national coverage and a guaranteed response time.
• Complete Monde accessories catalog: buckets, sorting rakes, compaction plates and other attachments available through UZINEX, directly compatible with the DEHN excavator quick coupler.
The Monde DEHN excavator quick coupler available through UZINEX in 7 models for 1,5–45 tonnes is the investment that transforms your excavator from a single-attachment machine into a versatile one, with attachment change in less than a minute from the cab, automatic safety locking and a 60-month warranty.
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