Top CAT excavators

Overview

The 2018-2025 Cat 323 is a 22.6-ton medium excavator powered by a 144 hp Cat C7.1 engine. Designed for high-production applications, it offers robust performance in tasks such as earthmoving, trenching, and material handling. With an operating weight of 22,600 kg and a 1.2 m³ severe-duty bucket, the 323 delivers efficient digging and loading capabilities.

Pros The larger 1.2 m³ bucket increases material moved per cycle, improving overall job site efficiency. The eight-roller undercarriage and reinforced structures provide stability and longevity in demanding conditions.

Cons Lacks some of the advanced telematics and automation features found in newer models. While functional, the cab may not offer the same level of comfort and noise reduction as higher-tier excavators.

What's new

The 2018-2025 model introduced several enhancements aimed at improving performance and operator experience. The excavator features a high-efficiency hydraulic system with tandem pumps delivering a maximum flow of 429 L/min, providing improved digging and lifting capabilities.

The machine's fuel system includes a two-stage filtration system with an anti-rust fuel tank, ensuring reliable performance and reduced maintenance needs.

Additionally, the 323 comes equipped with a heavy-duty, eight-roller undercarriage and reinforced structures, enhancing durability and stability during operation.

Efficiency and performance

In day-to-day operations, the Cat 323 demonstrates robust performance. Its digging depth reaches up to 6.3 meters, and the maximum reach at ground level is 9.47 meters, making it suitable for a variety of tasks.

The machine's fuel efficiency stands out, with operators reporting substantial savings over time. However, attention should be given to the cab comfort, as it may not match the standards of newer models.

Routine maintenance is facilitated by the machine's design, featuring easy access to service points, which helps minimize downtime and maintain consistent performance.

In-cabin and interior

The operator station of the 323 is designed with functionality in mind. The cab includes a high-resolution 203 mm (8") LCD touchscreen monitor, mechanically adjustable seat with headrest, and automatic bi-level air conditioner.

While the cab provides essential features for operation, it may lack some of the advanced comfort and noise reduction technologies found in newer models.

Safety features

Safety is a key consideration in the design of the 323. The machine is equipped with a fully enclosed ROPS and FOPS cab, protecting operators from rollovers and falling objects. The cab's design enhances visibility, reducing blind spots and contributing to safer operation.

The machine's maintenance-friendly design minimizes the risk of accidents during routine checks, and the inclusion of a backup alarm and interlock system further enhances operator safety.

In comparison

Compared to previous models, the 2018-2025 323 offers improved hydraulic performance and operator functionality. When compared to competitors like the Komatsu PC210, some users have noted that the 323's fuel efficiency and durability provide a competitive edge in terms of performance and operator satisfaction.

Verdict

The 2018-2025 Cat 323 Medium Excavator earns a solid 5-star rating for its reliability, fuel efficiency, and operator-focused design. While attention to cab comfort and advanced technology features is necessary, the machine's overall performance and cost-effectiveness make it a valuable asset for various applications.

Overview

The 2021 Cat 305.5E2 mini excavator, powered by a Cat C2.4 DI engine compliant with Stage III emissions standards, has proven to be a reliable asset over approximately 8,550 operational hours. Manufactured in China, this machine boasts an operating weight of around 5,400 kg and a net power of 31.1 kW (41.7 hp), making it suitable for various construction and landscaping tasks.

What's new

The 2021 iteration of the Cat 305.5E2 introduced several enhancements aimed at improving operator experience and machine performance. A significant update was the redesigned operator station, featuring a wider entry, adjustable armrests, and an improved ergonomic layout, enhancing comfort during extended use.

The integration of the COMPASS control panel provided operators with advanced functionalities, including a passcode-protected security system and adjustable auxiliary hydraulic flow settings, allowing for precise control of various attachments.

Additionally, the High Definition Hydraulic (HDH) System was introduced, offering load-sensing and flow-sharing capabilities. This system improved the machine's responsiveness and efficiency, particularly during simultaneous operations such as traveling and lifting.

Efficiency and performance

In practical applications, the Cat 305.5E2 has demonstrated exceptional performance across various tasks. Its high digging forces and fast cycle times contribute to increased productivity on job sites. The machine's stability and smooth operation have been highlighted by operators, making it effective in both excavation and material handling tasks.

Routine maintenance is facilitated by the machine's design, featuring large side doors that provide easy access to service points. This accessibility contributes to reduced downtime and ensures consistent performance over extended periods. ​

However, the boom swing mechanism's positioning requires careful operation in confined spaces to avoid unintended contact with surrounding structures. Additionally, operators engaging in heavy-duty tasks may find the standard thumb attachment less durable, potentially necessitating aftermarket enhancements.

In-cabin and interior features

The updated operator station in the 2021 model offers a more comfortable and user-friendly environment. The wider entry and adjustable armrests accommodate operators of varying sizes, reducing fatigue during long shifts. The improved ergonomic layout ensures that controls are within easy reach, enhancing operational efficiency.

The COMPASS control panel adds a layer of convenience, allowing operators to customize settings such as auxiliary hydraulic flows to match specific attachment requirements. The passcode-protected security system enhances machine security, particularly on job sites with multiple operators.

Safety features

Safety remains a priority in the Cat 305.5E2's design. The machine is equipped with a certified lifting eye on the bucket linkage, facilitating secure lifting operations. The inclusion of auxiliary hydraulic lines with quick connects allows for safe and efficient attachment changes, reducing the risk of hydraulic leaks.

The robust construction of the machine, combined with its stable operation, minimizes the likelihood of accidents due to equipment failure. The operator station's design ensures clear visibility of the work area, further enhancing operational safety.​

In comparison

Compared to previous models, the 2021 Cat 305.5E2 offers significant improvements in operator comfort and machine responsiveness. The introduction of the HDH System and the COMPASS control panel distinguishes it from earlier versions, providing operators with advanced tools to enhance productivity.

When compared to competitors in the same class, such as the Kobelco SK55, the Cat 305.5E2 stands out with its refined cab design and customizable hydraulic settings. However, some operators have noted that the Kubota offers slightly smoother control systems, highlighting the importance of considering specific job requirements when selecting equipment.

Verdict

The 2021 Cat 305.5E2 Mini Excavator earns a solid 5-star rating for its durability, enhanced operator comfort, and efficient performance. While certain design aspects, such as the boom swing mechanism and standard thumb attachment, present minor challenges, the machine's overall reliability and advanced features make it a valuable asset for various construction and landscaping projects.

Overview

The 2020-2025 Cat 303 mini excavator, powered by a Cat C1.3-EF04 engine meeting Stage IV emissions standards, has demonstrated solid performance over approximately 5,305 operational hours. Manufactured in Japan, this machine is designed for tasks such as landscaping, utility work, and small-scale construction projects.​

What's new

The 2020-2025 model of the Cat 303 introduced several updates aimed at improving transportability and performance. A notable change was the reduction in operating weight to approximately 3,310 kg (7,297 lb) for the canopy version, enabling easier transportation without compromising performance.

An optional 267-kg (588-lb) counterweight is available for users requiring additional stability during heavy-duty applications, bringing the machine's weight back to the previous model's 3,311 kg (7,300 lb).

The compact design, with a width of 1,550 mm (60 inches) across the blade and zero-radius tail swing, allows the 303 to operate efficiently in tight spaces and congested job sites.

Efficiency and performance

In day-to-day operations, the Cat 303 mini has proven to be a reliable and efficient machine. Its compact size and zero-tail-swing design make it particularly effective in urban environments and confined work areas. The machine's digging capabilities are commendable, allowing for precise excavation tasks.​

However, some operators have observed that the machine can become slightly unstable when lifting heavy loads, indicating a need for cautious operation in such scenarios. ​

Routine maintenance is straightforward, with accessible service points that facilitate quick inspections and servicing, thereby minimizing downtime.​

In-cabin and interior features

The operator station of the Cat 303 small excavator is designed with user comfort in mind. The ergonomic layout ensures that controls are within easy reach, and the spacious cab provides ample room for operators of varying sizes. These features contribute to a comfortable working environment, reducing fatigue during long shifts.​

Visibility from the cab is adequate, allowing operators to have a clear view of the work area, which enhances operational safety and precision.​

Safety features

Safety features of the Cat 303 include a certified lifting eye on the bucket linkage, facilitating secure lifting operations. The machine's design ensures that auxiliary hydraulic lines are equipped with quick connects, allowing for safe and efficient attachment changes.​

The robust construction of the machine, combined with its stable operation, minimizes the likelihood of accidents due to equipment failure. The operator station's design ensures clear visibility of the work area, further enhancing operational safety.​

In comparison

Compared to previous models, the 20-25 Cat 303E offers improved transportability due to its reduced weight, making it more convenient for operators who frequently move equipment between job sites. The optional counterweight provides flexibility, allowing users to tailor the machine's stability to their specific needs.

When compared to competitors in the same class, such as the Bobcat E32, some users have noted that Cat machines can be slower and consume more fuel, potentially due to differences in hydraulic system configurations. However, the Cat 303's operator comfort and control layout are often highlighted as positive aspects, making it a strong contender in the mini excavator market.

Verdict

The 2020-2025 Cat 303 mini excavator earns a solid 5-star rating for its compact design, operator comfort, and reliable performance. While there are minor concerns regarding hydraulic hose accessibility and stability under heavy loads, the machine's overall capabilities and features make it a valuable asset for various construction and landscaping projects.

Overview

The Cat M318 (M318D) (2011–2021) is a 17.5-ton wheel excavator aimed at contractors, municipalities, and utility teams that need full-size digging performance with better road mobility than a crawler excavator. Its 130 kilowatt Cat C6.6 ACERT engine, 0.91 cubic meter bucket, 6.36 m digging depth, and 9.6 m reach make it suitable for drainage, utility installation, road maintenance, loading, trenching, and urban excavation.

Expert rating: 5 stars

Performance & Efficiency

The 130 kilowatt Cat C6.6 ACERT engine supports a hydraulic pump flow of 290 liters per minute at a relief pressure of 350 bar. Its 126 kN bucket digging force and 102 kN arm crowding force provide strong breakout performance for trenching, loading, and compacted ground, while the 9.8 rpm swing speed supports steady excavation cycles. A 99 kN drawbar pull and 25-degree gradeability help the machine work across sloped sites, while the 37 kph travel speed is a major advantage for road and municipal work.

In Comparison

Volvo EW160: A close alternative in the same road-mobile excavator class, suited to utility, municipal, and general construction work.
Cat M318: Provides a 9.6 m digging reach, 126 kN bucket force, and 37 kph travel speed for buyers who need strong excavation output with practical road mobility.

Final Verdict

Rated 5 stars, the Cat M318 is a capable wheel excavator within the AED 180,000–400,000 range. Its strong hydraulic system, 0.91 cubic meter bucket, long digging reach, and high road speed make it a practical choice for roadworks, utilities, drainage, and urban excavation.

Overview

The 349F L is a large crawler excavator weighing 48.6 t (107,145 lb), equipped with a 311 kW (417 hp) Cat C13 ACERT engine. It achieves a dig depth of 7.66 m and horizontal reach of about 11.73 m. Bucket capacity is 3.1 m³, tear-out force 267 kN, and transport size is roughly 12.5 m long, 3.34 m wide, and about 3.71 m high.

Performance & Efficiency

Smart Mode aligns hydraulic and engine output to load needs, enhancing fuel efficiency by up to 10 %. Maintenance is more economical—15 % lower—thanks to extended service intervals and accessible layout.

In Comparison

Compared to older 349s, the F L adds power and smart tools without much extra weight. Compared to newer Cat excavators, it keeps things simpler while staying production-ready.

Verdict

Perfect for high-volume digging and heavy work. Powerful, smart, and built to last. Not ideal for narrow, lightweight tasks or minimal tech systems.

Overview

The Cat 336 is a 36.6 t (80,600 lb) Tier 4 Final excavator powered by a 223 kW (300 hp) Cat C7.1 TTA engine. It features a 2.27 m³ bucket, 8.2 m (26.9 ft) digging depth, and up to 11.73 m (38.5 ft) reach.

Performance & Efficiency

With 560 L/min hydraulic flow and high dig force (~210 kN), it balances power with precision. Fuel consumption drops up to 15%, maintenance costs fall due to extended service intervals.

In Comparison

Compared to the 336 GC, you get more hydraulic power and tech at a modest weight bump. Against the 340, it's easier to transport and still accurate.

Verdict

The Cat 336 delivers utility, accuracy, and productivity in one package. Ideal for large excavation and grading tasks. Skip it for ultra-tight access sites or if you need stripped-down simplicity.

Overview

The Cat 320 is a 21.2 t (46,700 lb) next-gen excavator powered by a 110.5 kW (150 hp) Cat C7.1 engine. It delivers up to 6.72 m (22 ft) digging depth and 1.4 m³ (1.8 yd³) bucket capacity.

Performance & Efficiency

Main hydraulics at 429 L/min and up to 5,500 psi pressure deliver high dig force and control. Fuel use is cut by ~25%, and maintenance cost drops up to ~15% versus older models.

In Comparison

Compared to the PC300, you gain full tech and more power for not much more weight. Against the 323, it’s lighter, easier to move, and more cost-effective.

Verdict

The Cat 320 hits the utility-productivity-tech sweet spot. Perfect for high-production digging and grading. Skip it if your work is ultra-compact or you want the simplest rig.

Overview

The Cat 306 CR is a compact-radius mini excavator weighing ~7.15 t (15,766 lb), with a 41.7 kW (55.9 hp) C2.4 Turbo engine. Max digging depth around 4.11 m (13.5 ft); transport width ~1.5 m (4.9 ft). Equipped with load-sensing hydraulics for efficient use.

Performance & Efficiency

Load-sensing hydraulics plus auto-idle/auto-shutdown boost fuel savings. Stick-steer travel provides precise control in tight spots.

In Comparison

Compared to smaller models like 305 CR, it brings more power and reach without much extra width. Lighter and simpler transport than bigger mid-size units.

Verdict

Smart choice for compact, efficient digging and maneuvering. Skip it if you expect long runtimes in rocky ground or full-scale demolition.

Overview

The Cat 345 (2002–2005) is a large-class production excavator designed for continuous heavy digging. With a CAT 3176C ATAAC pushing 257 kW, 2.5 cu m bucket capacity, and nearly 49,000 kg operating weight, it targets quarry loading, mass excavation, and infrastructure where stability and breakout matter more than compact-site agility.

Key Features Highlight

• 48.96-ton class for bulk material movement
• 235 kN bucket digging force, 198 kN arm crowding force
• 720 LPM hydraulic flow for sustained loading cycles
• 8.6 rpm swing tuned for controlled truck loading
• 7.2 m max digging depth, 11.29 m reach
• 331 kN drawbar pull for tough underfoot conditions
• Large onboard fluids: 720 L fuel, 520 L hydraulic oil

Pros High digging forces, massive hydraulic flow, stable platform for truck loading.

Cons Fuel-heavy in light work, oversized for tight urban sites.

Efficiency

The 345 is built for sustained production, not stop-start finesse. Its 720 LPM hydraulic capacity keeps attachments responsive under load, while the 8.6 rpm swing favors controlled, repeatable truck loading over rapid cycling.

In Cabin

Operator environment is straightforward and industrial. Visibility to the bucket and working area is solid, controls are direct, and long shifts are manageable.

In Comparison

• Cat 349: heavier and more powerful for extreme production.
• Komatsu PC400: similar class with smoother hydraulics on some setups.
• Cat 345: balanced middle ground with strong digging forces.

Final Verdict

Rated 5 stars, the Cat 345 fits quarry and infrastructure work in the AED 187,500–420,000 range.