LST21 R350: Pneumatic random orbital sander - Atlas Copco Libya

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LST21 R350: Pneumatic random orbital sander

8423 0361 66

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+202 46100337/8

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Tools in the LST20 series are all equipped with an advanced double counter-weight system which minimizes vibrations. The housing allows both a straight and a cross-over grip. Each LST20 series tool comes with two sizes of housing cover – these are easily exchangeable to fit the individual operator. The result is maximum comfort and good ergonomics.

Features & benefits

  • Extraction model - self suction
  • Powerful, vertically mounted air motor
  • Low noise
  • Long service life
  • Low vibrations with double counter-weight system
  • Two housing covers
  • Lubrication and silicon free
  • 5 mm orbit dimameter (for fine surface finish)

Technical data

Technical Specifications
Model typeVertical
Motor typeVane
Max output0.2 kW
Max Free Speed12000 r/min
Orbit diameter5 mm
Weight0.85 kg
Height over spindle93 mm
Length191 mm
Air consumption at free speed8 l/s
Rec hose size8 mm
Air inlet thread BSP1/4 inch
Pad size90 mm
Sound standardISO15744
Sound power96 dB(A)
Sound pressure85 dB(A)
Sound uncertainty3 dB(A)
Vibration standardISO28927-3
Vibration value3.8 m/s²
Vibration uncertainty1.7 m/s²
Obsolete vibration standardISO8662-8
Obsolete Vibration value<2.5 m/s²
Height93 mm
Lubrication freeYes
Air inlet thread NPT1/4 inch
Max working pressure6.3 bar
Length0.19 m

Spare parts lists, Dimensional drawings, Exploded Views, Service Instructions, etc.

Spare parts, Dimensional Drawings, Service Instructions, Industrial tools.
Below you find links to Atlas Copco ServAid application, where you find spare parts list and product instructions and a link to the Dimensional Drawing archive where you can find 2D and 3D drawings in PDF, DXF and IGS format.

Atlas Copco Service

The Leader in tool maintenance for industry Atlas Copco service is a proven cost-saver in your production. The savings you can expect from running a service program depend on the type of production you have in your plant. Many factors are taken into consideration, including: Line assembly, work at fixed stations, frequency of tool use, tool types, applications, and work environment.

Repair Service

With today’s high demands on minimizing downtime for our customers, we focus on specialized workshops that can handle quick repairs and complete overhauls in the most cost-efficient way. To do that we keep a large inventory of spare parts in stock, and we have upgraded with factory fixtures and test equipment to increase our efficiency. With all this, plus certified mechanics dedicated to specific tool models, we’ve minimized lead times and improved the quality of each repair. After service all tools are rigorously tested to Atlas Copco specifications.
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Atlas Copco ToolScan

Tool service
Atlas Copco ToolScan™ report informs you of the status of your air tools and air supply at each workstation. The service is carried out by a highly experienced certified technician and covers the following areas:
  • AirScan of the air supply at each workstation.
  • Status and performance check of the tools
  • Other services can be added.
A report informing you of the status of your air supply and tools, including recommendations for improvements. You can then, together with your team, decide the next step without a binding agreement.
Read more about Atlas Copco ToolScan™

Energy Efficiency Audit

A huge amount of energy is wasted due to leaks in compressed air systems. Capacity losses of up to 20% are common in many installations. During an Energy Efficiency Audit Atlas Copco checks the static and dynamic pressure for your air tools on the line. The pressure drop is measured and documented and a visual inspection of the air installation is performed. Based on the information acquired, using the Energy Efficiency Calculator, Atlas Copco recommends the correct installation in terms of air line accessories and various other aspects.

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Preventive Maintenance

Like other machines, Atlas Copco industrial power tools need regular maintenance in order to fulfill their full potential in terms of performance and reliability. Different agreements are available, tailored to your needs. We offer maintenance both on-site or off-site, or a combination.

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Full Coverage Service

Our Full Coverage option keeps your power tools in top operating condition and gives you a fixed budget for all tool maintenance. Other services can be added. To develop the optimum service program for your specific manufacturing operation, take advantage of our unique ToolScan RCM process.

Full Coverage includes:
  • Repair, including parts
  • Calibration
  • Preventive maintenance program
  • On-site/off-site options
  • Other services can be added
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Outsourcing solutions

We have extensive experience of outsourcing solutions and currently have more than 75 on-site workshops. These are examples of the areas we cover:
  • Preventive maintenance, repair and calibration of all
    brands and types of tools.
  • Installation and start-up support.
  • Service management system, including developing Key Performance Indicators.
  • Line and process support.
  • Back-up tool/equipment and spare parts management.
  • Other customer requests.
Read more about Outsourcing Solutions


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Customer Request

+202 46100337/8

Send an email