When I talk about a large crawler excavator for serious earthmoving work, I look first at three things: digging force, machine stability, and how well the machine can keep working day after day. The 355 Hydraulic Excavator is built around these basic requirements. It is a large crawler Excavator designed for heavy excavation, quarrying, rock breaking, truck loading, aggregate handling, demolition support, and other demanding jobs where a smaller machine may simply not have enough working capacity.

The Cat 355 is currently listed by Caterpillar as a large hydraulic excavator. In the configuration published for the 355, the machine uses a Cat C13B engine with a net power of 443 hp (330 kW), an operating weight of about 51,500 kg, and a maximum digging depth of 6,770 mm. Caterpillar also lists a maximum ground reach of 10,770 mm and a maximum bucket digging force of 293 kN for the referenced configuration. These figures give a useful picture of the machine's working class, although the exact specification can change with the boom, stick, bucket, counterweight, undercarriage, emissions package, and market configuration.

At Ganglong Heavy Industry Technology (Hefei) Co., Ltd., I do not treat a heavy excavator as simply another machine on a quotation sheet. For an overseas customer, the real question is whether the machine matches the job, whether the configuration is correct, whether the inspection is done before shipment, and whether transportation has been planned properly. That is where our team becomes useful. We work with customers on machine selection, configuration, inspection, documentation, export preparation, and delivery.

1. What Is a 355 Hydraulic Excavator?

The 355 Hydraulic Excavator is a large crawler excavator made for jobs that need high digging force and a stable working platform. Unlike a Wheeled Excavator, it uses crawler tracks to spread machine weight over a larger ground area. This gives the operator a solid base when working on rough construction sites, quarry benches, earthmoving areas, or other difficult ground conditions.

The basic working process is straightforward. The engine provides mechanical power, the hydraulic system turns that power into controlled hydraulic force, and hydraulic cylinders move the boom, stick, and bucket. The crawler undercarriage moves the machine around the site, while the swing system allows the upper structure to rotate for digging and loading.

It sounds simple, but the balance between these systems is important. A large bucket is not useful if the hydraulic system cannot control it properly. High engine power is not enough if the undercarriage is not stable. Strong digging force also needs a suitable boom, stick, bucket, and counterweight combination. In real work, the machine has to act as one complete system.

The Caterpillar 355 specification used as a reference here has a 51,500 kg operating weight and a 443 hp net engine rating. Caterpillar lists the machine with a reinforced front structure and heavy-duty counterweight, making it suitable for applications where large attachments and high working loads are expected.

Source: Caterpillar official 355 product specifications. Actual specifications vary according to configuration, market, model year, and equipment selection.

2. How the 355 Hydraulic Excavator Works on a Jobsite

When the operator lowers the bucket into the ground, the hydraulic system sends pressurized hydraulic oil to the relevant cylinders. The boom cylinder controls the boom, the stick cylinder controls the stick, and the bucket cylinder provides the movement needed to curl and open the bucket. The operator combines these movements through the hydraulic controls to remove material from the ground.

The engine is the power source behind this process. On the Caterpillar 355 configuration referenced above, the Cat C13B engine provides 443 hp of net power. The hydraulic system then transfers engine power into useful machine movement. Caterpillar lists maximum equipment and travel pressure at 35,000 kPa and a higher 38,000 kPa pressure in lift mode.

For an operator, the important point is not the pressure number itself. What matters is how the machine behaves when the bucket enters hard material or when a full bucket needs to be lifted. A good hydraulic excavator should feel predictable. The operator should be able to make small movements when precision is needed and apply strong force when the ground becomes difficult.

The swing system is another important part of the machine. After the bucket is filled, the upper structure rotates toward the truck or stockpile. The 355 specification lists a swing speed of 8.3 revolutions per minute and maximum swing torque of 189 kN·m. This combination is useful for repetitive digging and loading cycles where the machine needs to move between the excavation area and the truck many times during a working day.

The crawler undercarriage provides the foundation for all of this work. On soft, muddy, uneven, or rough ground, the tracks help distribute machine weight and provide traction. Of course, no crawler excavator should be treated as immune to ground conditions. Proper site assessment, working angle, track condition, and operator skill still matter.

3. Main Features I Look at in a 355 Excavator

Heavy-Duty Engine and Hydraulic Power

The first thing I look at on a Large Excavator is whether the power system matches the intended work. The 355 uses a Cat C13B engine in the referenced Caterpillar configuration, with 443 hp (330 kW) net power. This places the machine firmly in the heavy-duty excavator class.

For quarrying, bulk excavation, truck loading, and rock-related work, strong hydraulic output is especially important. The published 355 data lists 293 kN of bucket digging force and 240 kN of stick digging force. These numbers are useful when comparing machines, but I always recommend looking beyond one specification. Bucket size, stick length, material density, working depth, and operator technique all affect actual production.

Reinforced Front Structure

A large excavator often works with large attachments, and the front structure must handle repeated loads. The Caterpillar 355 is described with a reinforced front structure and heavy-duty configuration. This is particularly relevant when the machine is used for demanding excavation, quarry work, or hydraulic hammer applications.

In practical terms, I would rather see a customer choose a properly matched attachment and working configuration than simply install the biggest possible tool. Oversized attachments can change machine balance and hydraulic demand. Matching the attachment to the machine is part of getting reliable performance.

Stable Crawler Undercarriage

The crawler design gives the 355 a wide and stable working platform. Tracks are especially useful where the site contains loose soil, gravel, mud, broken rock, or uneven surfaces. The machine can move slowly and steadily while maintaining a solid base for digging.

For customers working on slopes or soft ground, I pay close attention to track width, undercarriage configuration, ground conditions, and transport requirements. A wider track configuration can provide useful stability, but it can also affect transportation width. This is one of the details that should be confirmed before ordering.

Large Bucket Capacity

Caterpillar lists a 3.21 m³ severe-duty bucket in the reference 355 configuration. The same product information also describes an HD 4.5 m³ bucket option for applications requiring a higher payload configuration. This shows why customers should not compare Excavators using operating weight alone. The bucket and front-end configuration can have a major effect on the type of material and production cycle the machine can handle.

Attachment Flexibility

A heavy excavator is more useful when it can be matched with the right attachments. Depending on the machine configuration and hydraulic requirements, applications may include digging buckets, heavy-duty buckets, hydraulic hammers, and other work tools.

For demolition and rock breaking, hydraulic hammer compatibility becomes especially important. Caterpillar specifically describes the 355 as suitable for applications such as rock breaking, quarrying, aggregate work, and demolition-related work. Before we arrange an attachment, we check the machine configuration and hydraulic requirements rather than assuming that every attachment will fit.

4. 355 Hydraulic Excavator Compared with Other Large Excavators

Customers often ask me whether they should choose a 350, 352, or 355. There is no useful answer based on model number alone. The actual job decides what matters. Still, a comparison of published specifications helps explain the size and capability of each machine.

Source: Caterpillar official product specifications for the 350, 352, and 355. Values shown are published reference configurations and may vary by region and machine configuration.

These figures tell an interesting story. The 355 is not simply a bigger version of the 350. The 350 shown by Caterpillar has a greater published maximum digging depth, while the 355 is configured for very heavy-duty work and has a higher operating weight. The 352 has the same published 443 hp net power as the 355 but a slightly lower operating weight and a greater published maximum digging depth.

For a contractor, this means the purchase decision should start with the application rather than the model number. If the main work is deep excavation, the working range deserves close attention. If the main work is quarrying, heavy loading, rock breaking, or demanding attachment use, structural strength, hydraulic performance, attachment compatibility, and stability may become more important.

5. Where I Recommend Using a 355 Hydraulic Excavator

Quarry and Aggregate Operations

Quarry work is one of the natural applications for a heavy crawler excavator. The machine may be used for removing material, loading broken rock, preparing working areas, and handling aggregate. The site can be rough, dusty, and demanding, so durability and attachment selection matter.

Mining Support

In mining-related work, excavators may be used for site preparation, material removal, loading, trenching, and support work around larger mining operations. The exact machine configuration depends heavily on the mine, material, bench design, haul truck size, and local regulations.

Heavy Construction

Large infrastructure projects often require machines that can remove large amounts of soil in a controlled way. The 355 can be used for bulk excavation, foundation preparation, large trenches, site preparation, and material loading where its working range and machine size are suitable.

Road and Railway Projects

Road and railway construction can involve large volumes of soil and rock. A heavy crawler excavator can help with cutting, excavation, drainage preparation, embankment work, and loading. Its crawler undercarriage is also useful when the site is not yet fully prepared for wheeled machinery.

Demolition and Rock Breaking

When equipped with a suitable hydraulic hammer or other approved attachment, a large excavator can support heavy demolition and rock-breaking work. The 355 is specifically positioned by Caterpillar for demanding applications involving large hydraulic hammers and reinforced front-end protection.

Large-Scale Site Preparation

Before an industrial plant, warehouse, road, or other major facility can be built, the site may require extensive earthmoving. A large excavator can remove soil, shape working areas, prepare foundations, and load trucks. For these jobs, machine capacity needs to be matched to the planned production volume.

6. How We Handle Machine Selection, Inspection and Delivery

At Ganglong Heavy Industry Technology (Hefei) Co., Ltd., our role is not to claim that we manufacture every brand of equipment we supply. We are a comprehensive construction machinery company involved in equipment sales, leasing, customization, testing, and international trade. We supply our own HKLOONG equipment and also work with domestic and international construction machinery brands according to the customer's actual requirements.

For a customer looking for a 355 Hydraulic Excavator, the first step is to understand the project. I normally want to know the working material, digging depth, required bucket capacity, attachment requirements, expected working hours, jobsite conditions, destination country, and transportation plan. These details help prevent a common purchasing mistake: buying a machine based only on its headline horsepower.

Once the configuration is confirmed, our team can arrange the machine inspection process. For a crawler excavator, I pay attention to the engine, hydraulic system, boom and stick, bucket, undercarriage, controls, structural condition, working functions, and visible signs of wear. For used equipment, inspection becomes even more important because actual machine condition can be very different from the model specification.

For standard crawler excavators, our typical production or preparation cycle is around 30 to 60 days, depending on the model, configuration, order quantity, and customization requirements. This should be treated as a working reference rather than a fixed promise, because machine availability and configuration have a direct effect on delivery time.

Before shipment, the machine can be checked through factory testing and inspection procedures. Depending on the order, delivery documents may include operating manuals, inspection records, spare parts, certificates, and other required paperwork.

Export Packing and Transportation

Large excavators are not small parcels, so shipping has to be planned from the beginning. Depending on machine size, destination, and shipping conditions, crawler excavators may be transported by bulk vessel, Ro-Ro vessel, or container when the dimensions allow it.

Before loading, the machine is normally cleaned and prepared for long-distance transportation. Exposed areas can be protected against rust and moisture, the machine is securely fixed, and detachable components can be separated when this helps reduce transport space. The exact packing method depends on the machine and shipping route.

7. Why Work with Ganglong for a 355 Hydraulic Excavator?

Ganglong Heavy Industry Technology (Hefei) Co., Ltd. was founded in 2013. Together with Hefei Ganglong International Trade Co., Ltd., we operate as part of a group connected with China Construction Machinery (Group) Co., Ltd. Our business covers equipment R&D, manufacturing, testing, customization, sales, leasing, and international trade.

Our own HKLOONG product range includes excavators, loaders, Backhoe loaders, and swamp excavators. At the same time, we provide complete-machine sales and leasing services involving brands such as Hitachi, SANY, Lonking, Hyundai, XCMG, SHANMON, and LOVOL according to actual supply arrangements.

For overseas customers, Hefei Ganglong International Trade Co., Ltd. acts as our professional international trade arm. Our team has experience with construction machinery, mining machinery, agricultural machinery, and related attachments. We have served customers in Asia, Africa, America, and other international markets.

What does that mean for a buyer? In simple terms, we understand that selling an excavator is only one part of the job. The machine has to match the application, the documents need to be prepared correctly, the machine needs to be checked before shipment, and the transportation plan needs to make sense for the destination.

I also believe in being clear about machine specifications. A 355 Hydraulic Excavator can have different configurations depending on the market and production year. Boom length, stick, bucket, track shoes, counterweight, emissions requirements, attachments, and optional equipment can all change the final machine. Therefore, when a customer asks for a quotation, we confirm the actual configuration instead of copying a generic specification from an old brochure.

That approach is especially important for international buyers. A machine that looks correct on paper may not be the right machine for a particular port, road, mine, quarry, or jobsite. Transport width and height, local emissions requirements, attachment compatibility, and after-sales parts availability all deserve attention before the order is confirmed.

8. FAQ About the 355 Hydraulic Excavator

Q1: What is a 355 Hydraulic Excavator used for?

The 355 Hydraulic Excavator is designed for heavy-duty excavation, quarrying, aggregate handling, rock breaking, truck loading, large-scale earthmoving, infrastructure construction, and related applications. Its large operating weight and strong hydraulic digging capability make it suitable for demanding jobs where high machine capacity is required.

Q2: How much does a 355 Hydraulic Excavator weigh?

The Caterpillar reference configuration listed for the 355 has an operating weight of approximately 51,500 kg. Actual operating weight can change depending on the undercarriage, boom, stick, bucket, counterweight, and other equipment installed on the machine.

Q3: What engine does the Cat 355 Excavator use?

The current Caterpillar specification referenced on this page uses a Cat C13B engine. The published net power is 443 hp, or approximately 330 kW. Engine emissions specifications and available configurations can vary according to market and regulatory requirements.

Q4: How deep can the 355 Excavator dig?

The Caterpillar reference configuration lists a maximum digging depth of 6,770 mm. This is a specification for the stated boom, stick, and bucket combination. Changing the front-end configuration can change the working range, so customers should confirm the exact configuration required for their project.

Q5: Can the 355 Hydraulic Excavator work with a hydraulic hammer?

Yes, the 355 is designed for demanding attachment applications, and Caterpillar specifically positions the model for work involving large hydraulic hammers. However, the correct hammer must be matched to the excavator's hydraulic flow, pressure, mounting interface, and operating weight. We recommend confirming the complete attachment specification before purchase.

Q6: What is the typical delivery time?

For standard crawler excavators, our typical production or preparation cycle is around 30 to 60 days. The actual lead time depends on machine availability, model, configuration, order quantity, customization, inspection requirements, and shipping arrangements. We confirm the estimated schedule after the machine configuration and order details are clear.

Q7: How is a large crawler excavator shipped overseas?

Depending on the machine dimensions and destination, transportation can be arranged by bulk vessel, Ro-Ro vessel, or container where practical. Before shipping, the excavator is cleaned, protected against moisture and rust, securely fixed, and prepared according to the selected transportation method. Detachable parts can be packed separately when required.

Q8: Can you help me choose the right excavator configuration?

Yes. This is one of the most useful parts of our service. Instead of choosing only by horsepower or operating weight, we can review the intended material, digging depth, bucket capacity, attachments, ground conditions, expected working hours, destination, and transport restrictions. Based on those details, we can help identify a suitable machine and configuration.

Conclusion: Choosing a 355 Hydraulic Excavator Based on the Real Job

A heavy excavator is a serious investment, so I always recommend starting with the work rather than the machine name. The 355 Hydraulic Excavator belongs to a large crawler excavator class designed for demanding applications. With a published 443 hp net power rating, approximately 51,500 kg operating weight, strong digging forces, and a reinforced heavy-duty configuration, it is suited to applications such as quarrying, rock breaking, truck loading, infrastructure construction, and large-scale earthmoving.

At the same time, specifications should never be treated as one-size-fits-all numbers. The actual boom, stick, bucket, undercarriage, counterweight, attachment, emissions package, and market configuration affect the final machine. That is why we focus on matching the machine to the customer's working conditions before confirming an order.

From machine selection and inspection to documentation, export preparation, and transportation, Ganglong aims to make the purchasing process easier for contractors, dealers, rental companies, mining operators, and overseas machinery buyers. If you are looking for a 355 Hydraulic Excavator for Sale, a Cat 355 Excavator, or a heavy crawler excavator for quarrying, mining support, construction, and earthmoving, send us your working requirements and destination. We can then work from the actual project instead of making a guess from a model name.