10-17-2025, 03:10 PM
The 1985 Sumitomo S160 is a significant model in the history of heavy machinery, specifically in the category of hydraulic excavators. Manufactured by Sumitomo Construction Machinery Co., Ltd., this excavator was designed to provide powerful, reliable, and efficient performance for various construction and excavation tasks. This article delves into the features, specifications, performance, common issues, and the legacy of the Sumitomo S160, highlighting why it still holds value in the used machinery market.
Sumitomo: A Legacy of Innovation in Heavy Equipment
Sumitomo Construction Machinery Co., Ltd. was founded as a subsidiary of the Sumitomo Group, one of Japan’s largest and most reputable conglomerates. The company has long been recognized for producing high-quality and durable construction equipment, with a particular focus on excavators, cranes, and other heavy-duty machines.
The Sumitomo S160, produced in the mid-1980s, was part of their line of excavators designed to meet the demands of the rapidly expanding construction industry. At a time when excavators were becoming more technologically advanced, Sumitomo's engineering innovations stood out. While the company is perhaps not as widely recognized in North America as some competitors like Caterpillar or Komatsu, Sumitomo has earned a loyal following for its dependable machinery, particularly in the Asian markets.
Key Features and Specifications of the 1985 Sumitomo S160
The Sumitomo S160 was designed to be a mid-size hydraulic excavator, ideal for medium-duty construction work such as digging, grading, and lifting operations. It features a hydraulic system that provides smooth and efficient operation, allowing operators to perform tasks with precision and ease. Here’s a closer look at its specifications:
The 1985 Sumitomo S160’s performance has been widely praised for its power and reliability. The engine’s output of 120 horsepower, combined with the efficient hydraulic system, enables the machine to perform heavy digging and lifting tasks with relative ease. This combination of power and hydraulic control makes the S160 particularly effective for general excavation, trenching, and lifting applications on medium-sized construction sites.
In terms of fuel efficiency, the S160 performs well, thanks to its well-engineered diesel engine and hydraulic system. Its fuel tank capacity allows for prolonged use, minimizing downtime spent on refueling. This is particularly beneficial on large projects where time is of the essence, and minimizing interruptions is critical to staying on schedule.
Common Issues and Maintenance Considerations
Like many machines of its era, the 1985 Sumitomo S160 is not without its share of common issues. Over the years, several owners and operators have encountered specific challenges with the excavator that are worth noting:
As a vintage model, the 1985 Sumitomo S160 is primarily available in the used equipment market. It is often sought after by those looking for a reliable and cost-effective machine for medium-duty excavation and construction projects. Its relatively low purchase price compared to newer models makes it an attractive option for smaller companies or contractors working on budget-conscious projects.
However, prospective buyers should be mindful of the machine’s age. Parts for the S160 may be harder to find as production has ceased, and its age can lead to additional maintenance costs. That being said, well-maintained units can still provide excellent value, especially if they have been upgraded with newer parts or components.
Conclusion
The 1985 Sumitomo S160 remains a respected machine in the heavy equipment world for its balance of power, performance, and cost-effectiveness. While it may not have the advanced technology of modern excavators, its simple design and rugged reliability continue to make it a worthwhile investment for those seeking a dependable excavator at a lower price point. With proper care and attention to maintenance, the S160 can continue to serve contractors and construction crews for years to come, providing a testament to Sumitomo’s enduring legacy in the heavy machinery industry.
Sumitomo: A Legacy of Innovation in Heavy Equipment
Sumitomo Construction Machinery Co., Ltd. was founded as a subsidiary of the Sumitomo Group, one of Japan’s largest and most reputable conglomerates. The company has long been recognized for producing high-quality and durable construction equipment, with a particular focus on excavators, cranes, and other heavy-duty machines.
The Sumitomo S160, produced in the mid-1980s, was part of their line of excavators designed to meet the demands of the rapidly expanding construction industry. At a time when excavators were becoming more technologically advanced, Sumitomo's engineering innovations stood out. While the company is perhaps not as widely recognized in North America as some competitors like Caterpillar or Komatsu, Sumitomo has earned a loyal following for its dependable machinery, particularly in the Asian markets.
Key Features and Specifications of the 1985 Sumitomo S160
The Sumitomo S160 was designed to be a mid-size hydraulic excavator, ideal for medium-duty construction work such as digging, grading, and lifting operations. It features a hydraulic system that provides smooth and efficient operation, allowing operators to perform tasks with precision and ease. Here’s a closer look at its specifications:
- Engine:
- Type: Diesel
- Output: Approximately 120 horsepower (89.5 kW)
- Engine Make: Mitsubishi
- Cylinders: 6
- The engine provides reliable power, allowing the excavator to operate effectively in various terrains and tasks.
- Type: Diesel
- Operating Weight:
- Approx. 16,000 kg (35,273 lbs)
- The weight of the S160 places it in the mid-range of hydraulic excavators, allowing it to carry out substantial earth-moving tasks while remaining maneuverable on construction sites.
- Approx. 16,000 kg (35,273 lbs)
- Bucket Capacity:
- Approximately 0.6 to 0.8 cubic meters (0.8-1.0 cubic yards)
- The excavator comes equipped with a versatile bucket suited for digging, lifting, and loading materials.
- Approximately 0.6 to 0.8 cubic meters (0.8-1.0 cubic yards)
- Arm Reach:
- Max Reach: Approximately 9 meters (29.5 feet)
- The boom and arm design of the S160 allows it to reach a considerable distance, making it effective for deep digging operations and loading trucks from a distance.
- Max Reach: Approximately 9 meters (29.5 feet)
- Hydraulic System:
- The S160 uses a fully independent hydraulic system, which enhances its lifting and digging capabilities. The hydraulic system is designed for precision, making the machine suitable for a variety of tasks that require fine control.
- The S160 uses a fully independent hydraulic system, which enhances its lifting and digging capabilities. The hydraulic system is designed for precision, making the machine suitable for a variety of tasks that require fine control.
- Travel Speed:
- Maximum speed: 5.5 km/h (3.4 mph)
- The travel speed of the S160 is suitable for construction sites where the machine needs to move relatively quickly between tasks, yet still offers a stable and controlled pace.
- Maximum speed: 5.5 km/h (3.4 mph)
- Fuel Tank Capacity:
- Approx. 350 liters (92.5 gallons)
- With a decent-sized fuel tank, the S160 can run for extended periods without frequent refueling, enhancing productivity on larger projects.
- Approx. 350 liters (92.5 gallons)
The 1985 Sumitomo S160’s performance has been widely praised for its power and reliability. The engine’s output of 120 horsepower, combined with the efficient hydraulic system, enables the machine to perform heavy digging and lifting tasks with relative ease. This combination of power and hydraulic control makes the S160 particularly effective for general excavation, trenching, and lifting applications on medium-sized construction sites.
In terms of fuel efficiency, the S160 performs well, thanks to its well-engineered diesel engine and hydraulic system. Its fuel tank capacity allows for prolonged use, minimizing downtime spent on refueling. This is particularly beneficial on large projects where time is of the essence, and minimizing interruptions is critical to staying on schedule.
Common Issues and Maintenance Considerations
Like many machines of its era, the 1985 Sumitomo S160 is not without its share of common issues. Over the years, several owners and operators have encountered specific challenges with the excavator that are worth noting:
- Hydraulic System Wear:
- While the hydraulic system of the S160 is generally reliable, older units may experience wear and tear on seals, valves, and hoses. This can lead to leaks or diminished hydraulic performance. Regular inspections and maintenance of the hydraulic system are crucial to ensuring the longevity and efficiency of the machine.
- While the hydraulic system of the S160 is generally reliable, older units may experience wear and tear on seals, valves, and hoses. This can lead to leaks or diminished hydraulic performance. Regular inspections and maintenance of the hydraulic system are crucial to ensuring the longevity and efficiency of the machine.
- Engine Overheating:
- The S160’s engine can sometimes experience overheating issues, especially when the machine is used for extended periods in hot environments or under heavy load. It is recommended to regularly check the radiator and cooling system, replacing worn-out hoses and filters as needed.
- The S160’s engine can sometimes experience overheating issues, especially when the machine is used for extended periods in hot environments or under heavy load. It is recommended to regularly check the radiator and cooling system, replacing worn-out hoses and filters as needed.
- Electrical System Problems:
- As with many older machines, the electrical system in the S160 can develop faults over time. This might manifest as starting issues, electrical shorts, or problems with lights and gauges. Replacing old wiring and ensuring a solid battery connection can prevent many electrical issues.
- As with many older machines, the electrical system in the S160 can develop faults over time. This might manifest as starting issues, electrical shorts, or problems with lights and gauges. Replacing old wiring and ensuring a solid battery connection can prevent many electrical issues.
- Undercarriage Wear:
- The undercarriage, including the tracks and sprockets, is subject to wear and tear due to constant contact with the ground. Operators should monitor the condition of the tracks, replacing worn components to prevent unnecessary strain on the rest of the machine.
- The undercarriage, including the tracks and sprockets, is subject to wear and tear due to constant contact with the ground. Operators should monitor the condition of the tracks, replacing worn components to prevent unnecessary strain on the rest of the machine.
- Cab and Operator Comfort:
- The operator cab on the S160, while functional, may feel cramped or outdated by modern standards. Over time, seat cushions, controls, and visibility could degrade. Upgrading the operator's seat or adding modern features can help improve operator comfort and productivity.
- The operator cab on the S160, while functional, may feel cramped or outdated by modern standards. Over time, seat cushions, controls, and visibility could degrade. Upgrading the operator's seat or adding modern features can help improve operator comfort and productivity.
As a vintage model, the 1985 Sumitomo S160 is primarily available in the used equipment market. It is often sought after by those looking for a reliable and cost-effective machine for medium-duty excavation and construction projects. Its relatively low purchase price compared to newer models makes it an attractive option for smaller companies or contractors working on budget-conscious projects.
However, prospective buyers should be mindful of the machine’s age. Parts for the S160 may be harder to find as production has ceased, and its age can lead to additional maintenance costs. That being said, well-maintained units can still provide excellent value, especially if they have been upgraded with newer parts or components.
Conclusion
The 1985 Sumitomo S160 remains a respected machine in the heavy equipment world for its balance of power, performance, and cost-effectiveness. While it may not have the advanced technology of modern excavators, its simple design and rugged reliability continue to make it a worthwhile investment for those seeking a dependable excavator at a lower price point. With proper care and attention to maintenance, the S160 can continue to serve contractors and construction crews for years to come, providing a testament to Sumitomo’s enduring legacy in the heavy machinery industry.
