KAESER SK19 screw compressor (used)

General Description
The KAESER SK19 is a silenced rotary screw compressor designed for industrial environments requiring a continuous and stable supply of compressed air. This model is renowned for its energy efficiency and reliability, qualities that make it ideal for those seeking a used machine with excellent performance at a competitive price.

Main components

• Engine : 11 kW power
• Screw compressor unit : oil-injected screw technology ensures consistent operation and higher efficiency than reciprocating compressors.
• Sigma Control system : allows automatic management of operations and constant monitoring of performance.
• Dryer (optional) : This is often combined with a refrigeration system to reduce the humidity of the compressed air.

Mechanical characteristics

• Maximum pressure : 10 bar
• Flow rate : 1.59 m³/min
• Rotation speed : approximately 2900 rpm
• Dimensions : Length 770 mm, width 750 mm, height 1000 mm
• Weight : Approximately 270 kg
• Operating temperature: from +3°C to +40°C​(
  Machine
  )​(
  RMF Hardware.
  )

Operating Procedure The compressor is started via the Sigma Control control panel, which allows you to adjust the pressure and monitor the machine's status in real time. Thanks to its silent design, the compressor can operate even near work areas without disturbing the environment.

Maintenance and Inspection: To determine whether a used KAESER SK19 is still efficient, check the number of hours it has been used (many models with fewer than 20,000 hours are available). The inspection should include checking the condition of the airend, air filters, oil quality, and cooling system. Regular maintenance includes changing the oil and filters, as well as cleaning the heat exchangers. A properly maintained compressor will have a longer service life.

Formulas for calculating efficiency To optimize performance, it is useful to calculate the energy consumption in relation to the compressed air flow rate: Energy efficiency (kW/m³) = Motor power (kW) Air flow rate (m³/min) \text{Energy efficiency (kW/m³)} = \frac{\text{Motor power (kW)}}{\text{Air flow rate (m³/min)}} $\text{Energy efficiency (kW/m³)}$ $=$ Air flow rate (m³/min) Motor power (kW) ​For Efficiency = 111.59 ≈ 6.92 kW/m³ \text{Efficiency} = \frac{11}{1.59} \approx 6.92 \, \text{kW/m³} $\text{Efficiency}$ $=$ 1 , 59 11 ​≈ $6$ $,$ $92$ $\text{kW/m³}$ This efficiency is average for screw compressors in this category.

Processable materials and areas of use This compressor is particularly suitable for industrial applications requiring high-quality compressed air, such as in the mechanical, food, pharmaceutical, and automotive sectors. It can be used to power pneumatic tools, painting processes, and compressed air cooling systems.

Why buy used? Buying a used KAESER SK19 compressor is a great option for anyone looking for a high-performance machine at a lower cost than a new one. Thanks to the robust German design and the long lifespan typical of these machines, a well-maintained model can provide years of additional service. Furthermore, the availability of spare parts and technical support further simplify long-term maintenance.

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