The Monde rock excavator bucket is the digging attachment designed for hard, rocky soils and compact gravel — the materials that prematurely wear out a standard soil bucket and where the investment in specialized steels pays back quickly through reduced replacement costs.
Manufactured from combinations of Q345B, Q460D, NM400, Hardox 400/500 and WH60A depending on the model and the loaded zones, the Monde rock excavator bucket covers excavators from 8 to 70 tonnes with capacities from 0,1 to 8 m³.
The main technical differentiator of the Monde rock excavator bucket is the double-radius bottom — the two-radius profile reduces friction during discharge and evenly distributes the contact pressure with the rock during penetration, extending service life compared with single-profile buckets.
This design feature, combined with the wear steels in the critical zones, makes the Monde rock excavator bucket the choice for quarries, infrastructure works on rocky terrain and demolition with medium- and heavy-class excavators. Key advantages of the Monde rock excavator bucket
• 5 wear steels available — Q345B, Q460D, NM400, Hardox 400/500, WH60A — the Monde rock excavator bucket can be configured with different wear steels depending on the rock type and the intensity of use. Hardox 500 (470–530 HB hardness) is the choice for the most abrasive rocks and maximum-wear applications; NM400 and Hardox 400 for medium applications; Q460D for the structure and the zones less exposed to direct wear.
• Double-radius bottom — extended service life — the double-radius profile of the rock excavator bucket bottom reduces friction of the material during discharge and evenly distributes the penetration forces into the rock over a larger surface. Compared with a flat or single-radius bottom, the double-radius design reduces the localized wear that causes premature holes and cracks in the bottom.
• Capacity 0,1–8 m³ — full range of applications — the Monde rock excavator bucket is available from small capacities (0,1–0,3 m³) for 8–15 tonne excavators working in confined spaces and small quarries, up to large capacities (4–8 m³) for heavy 50–70 tonne excavators in industrial quarries and major earthworks.
• Compatible with CAT, Komatsu, Hitachi, SANY, Doosan, Hyundai — the Monde rock excavator bucket is designed with mounting geometries compatible with the main excavator makes in the 8–70 tonne class present on the Romanian market, with no need for intermediate adapters on standard models.
• Weight 800–3.450 kg calibrated per class — each model of the Monde rock excavator bucket is sized with the weight corresponding to the excavator tonnage class, keeping the lifting capacity and penetration force within the normal hydraulic parameters of the machine.
• Profiles optimized for efficient filling and discharge — the internal geometry of the rock excavator bucket is designed to maximize the volume of material collected per cycle and to facilitate complete discharge of the material, with no residue that would reduce the effective volume of the next cycle.
• Penetration teeth for hard soils — the Monde rock excavator bucket is equipped with penetration teeth profiled for hard rock and compact gravel, replaceable independently without dismounting the bucket, with service lives adapted to the type of material to be excavated.
• 60-month UZINEX warranty — extended coverage with spare parts, replacement teeth and wear plates in stock at Iași, and guaranteed nationwide technical support within 24–48 hours.
Technical specifications — Monde rock excavator bucket
| Parameter | Value |
|---|---|
| Compatible excavators | 8–70 tonnes |
| Capacity | 0,1 m³ – 8 m³ (model-dependent) |
| Weight | 800–3.450 kg (size-dependent) |
| Structural materials | Q345B, Q460D, NM400, Hardox 400/500, WH60A |
| Bottom design | Double-radius — reduced friction, even force distribution |
| Compatible excavator makes | CAT, Komatsu, Hitachi, SANY, Doosan, Hyundai |
| Materials to be excavated | Hard and soft rock, rocky soil, compact gravel, mixed terrain |
| Main applications | Quarries, mining, infrastructure on rocky terrain, demolition |
The exact capacity, material and dimensions of the rock excavator bucket are selected based on the excavator tonnage and the type of rock to be excavated. UZINEX engineers confirm the correct configuration — free technical consultancy available . Hardox and NM400 materials in the rock excavator bucket
The choice of wear steel for the rock excavator bucket is decisive for the total operating cost per excavated tonne. Abrasive rock — granite, basalt, quartzite, hard limestone — wears out standard structural steel 10–20 times faster than clayey soil.
Hardox 500, with a Brinell hardness of 470–530 HB, is the steel with the highest resistance to abrasive wear for rock excavator buckets. At the same plate thickness, Hardox 500 lasts 4–5 times longer than Q345B on granite and basalt.
Used selectively in the zones in direct contact with the rock — bottom, side edges, tooth tips — Hardox 500 extends the replacement intervals without excessively increasing the weight of the rock excavator bucket.
NM400 and Hardox 400 (370–430 HB hardness) are the standard wear steels for the rock excavator bucket in applications with medium-hardness rock — limestone, sandstone, conglomerates. They offer a good balance between wear resistance and material cost compared with Hardox 500, provided the rock is not extremely abrasive. Main applications for the rock excavator bucket
Natural stone quarries are the reference application of the rock excavator bucket. Excavating rock loosened by the hydraulic breaker, loading broken blocks and feeding the primary crusher require a rock excavator bucket that withstands repeated abrasive contact with granite, hard limestone or basalt — materials that destroy a standard bucket within a few hundred hours of work.
Road and railway infrastructure works on routes with a shallow rock layer — cuts in rocky terrain, excavations for tunnels and underpasses — require the rock excavator bucket for excavating and loading loosened rocky material. Compared with a standard bucket, the Monde rock excavator bucket reduces the replacement cost of teeth and bottom plates, which on rocky terrain wear out several times faster.
Surface mining for metallic and non-metallic minerals involves excavating materials with high hardness and significant abrasive content. The rock excavator bucket with Hardox 500 in the critical zones is the standard equipment on 30–70 tonne excavators in open-pit mining operations.
Demolition of massive high-strength reinforced concrete structures — deep foundations, thick mat slabs, prestressed concrete retaining walls — stresses the rock excavator bucket similarly to hard rock, through the repeated impact with C30–C50 strength concrete. The rock excavator bucket with NM400 or Hardox 400 is the correct solution for intensive structural demolition. The rock excavator bucket versus the standard bucket
The rock excavator bucket and the standard soil bucket are optimized for different materials and working conditions — choosing the wrong bucket significantly increases the total operating cost.
The standard soil bucket has thinner walls, is lighter and offers a better capacity-to-weight ratio on soft and medium soils. On hard rock and compact gravel, the rapid wear of the bottom and side walls turns the weight advantage into a disadvantage through the high frequency of wear-part replacement.
The rock excavator bucket has thicker walls, wear steels in the critical zones and teeth profiled for rock penetration — heavier, but with a service life 3–8 times longer on abrasive materials than the standard bucket. On soft soils, the rock excavator bucket is over-engineered and needlessly reduces the available lifting capacity.
On excavators fitted with the Monde DEHN quick coupler , switching between the rock excavator bucket and the standard soil bucket is done from the cab in under a minute, perfectly adapting the attachment to the type of material encountered on each work face. Frequently asked questions about the rock excavator bucket
How do I choose between Hardox 400 and Hardox 500 for my rock excavator bucket?
Hardox 500 is the choice for the hardest and most abrasive rocks — granite, basalt, quartzite, ore with high silica content. Hardox 400 and NM400 are sufficient for limestone, sandstone and medium-hardness conglomerates. UZINEX engineers recommend the optimal material based on the description of the rock and the specific working conditions at the quotation stage — a correct choice can double the service life of the rock excavator bucket compared with a generic choice. What bucket capacity is suitable for my 20-tonne excavator?
On a 20-tonne excavator working in rock, the standard rock excavator bucket is in the 0,8–1,2 m³ range, depending on the density of the excavated material. On very dense rock (granite, basalt — 2,6–3 t/m³), the capacity is reduced to 0,8 m³ so as not to exceed the lifting capacity of the excavator with a full bucket. UZINEX engineers calculate the exact recommended capacity for your specific excavator and material. Are the rock excavator bucket teeth compatible with other bucket makes?
The teeth are the fastest-wearing components of the rock excavator bucket. UZINEX keeps replacement teeth compatible with Monde buckets permanently in stock at Iași. Compatibility with teeth from other makes depends on the fixing system — UZINEX engineers verify compatibility on request. Is the rock excavator bucket eligible for SEAP/SICAP public procurement?
Yes. UZINEX is a member of the Enterprise Europe Network and supplies excavator attachments for projects funded by EU funds and public procurement. Complete technical documentation is provided on request. Leasing options are available on the UZINEX credit and leasing page . Why UZINEX for the rock excavator bucket
The rock excavator bucket is an attachment with a direct and measurable impact on the cost per excavated tonne in quarries and works on rocky terrain. The choice of material, capacity and tooth configuration determines the replacement intervals and the total operating cost over the service life of the bucket.
• 60-month warranty — extended coverage for the Monde rock excavator bucket under intensive use on abrasive materials.
• Custom configuration — UZINEX engineers select the correct wear material, capacity and mounting dimensions for your specific excavator and rock.
• Transport and installation included — delivery to destination, mounting on the excavator and operator training included in the price of the rock excavator bucket.
• Teeth and wear plates in stock at Iași — the fastest-wearing parts available immediately, with no waiting times that block production in quarries.
• Compatible with the Monde quick coupler — on excavators with the DEHN quick coupler, the rock excavator bucket is changed in under a minute from the cab.
• Nationwide technical support within 24–48 hours — a network of technicians with national coverage and a guaranteed response time.
The Monde rock excavator bucket available through UZINEX is the attachment for excavation on rocky terrain, quarries and structural demolition — with Hardox 400/500, NM400 and Q460D, a double-radius bottom, capacities of 0,1–8 m³ for 8–70 tonnes and a 60-month warranty.