GTG21 S085 : Angle turbine sander - Atlas Copco United Kingdom

Product Search

GTG21 S085 : Angle turbine sander

8423 2963 05

GTG21 is a state-of-the-art turbine technology angle sander. Thanks to the turbine motor the GTG21 provides matchless power with low air consumption and very low weight.

Features & benefits

  • Lubrication-free turbine motor for maximum efficiency
  • 2.1 kW spindle power
  • Low weight (less than 2 kg)
  • Speed governor for optimal performance
  • Overspeed shut-off for increased safety
  • Low noise
  • Auto Balancer for reduced vibrations
  • Low height over spindle ensures maximum accessibility

Technical data

Technical Specifications
Model typeAngle
For wheel dia180 mm
Max output2.1 kW
Max Free Speed8500 r/min
Motor typeTurbine
Weight1.6 kg
Height over spindle80 mm
Air consumption at max output30 l/s
Air consumption at free speed10 l/s
Rec hose size13 mm
Air inlet thread BSP0
Sound standardISO15744
Sound pressure72 dB(A)
Sound uncertainty3 dB(A)
Vibration standardISO28927-3
Vibration value<2.5 m/s²
Obsolete vibration standardISO8662-8
Obsolete Vibration value2,9 m/s²

Included accessories with this product

  • Allen key - 6 mm

    Allen key

    6 mm

    4080 0048 00

  • Lock plunger compl.

    Lock plunger compl.

    4175 0895 80

  • Pin key - 30/5.9mm

    Face spanner


    4080 0862 00

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.

Read more about Repair Service

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.

Read more about Energy efficiency Audit

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.

Read more about Preventive Maintenance

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
Read more about Full Coverage service

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


  • Tool set

    Tool set

    4080 1039 90

  • Productivity kit

    MIDI Optimizer F/R EQ10-T13

    8202 0850 04

  • MultiFlex - Swivelling type, BSP


    Swivelling type, BSP

    8202 1350 24

  • Insert bit

    Torx T25

    4023 1332 00

  • Screwdriver

    1/4" fem. hex.

    4080 0853 00

  • Insert bit - Torx T20

    Insert bit

    Torx T20

    4023 1322 00

  • Backing pad compl.

    5" backing pad with UNC 5/8" thread

    4170 1204 90

Built in safety

To operate tools safely, always read and follow all Safety Information and Product Instructions. All locally legislated safety rules regarding installation, operation and maintenance must be respected at all times.

Safety Information
Product Instructions
Send to a friend PrintShare
Send to a friend PrintShare