Atlas Copco GTG25 Pneumatic Turbine Grinder

Atlas Copco GTG25 Pneumatic Turbine Grinder

The Atlas Copco GTG25 family is built for demanding pneumatic grinding applications in industrial environments.

It includes versions with free speeds of 12,000 or 8,500 rpm, maximum output of 2.5 kW, and maximum wheel diameters of 125 mm or 180 mm.
Selected variants also offer M14 or 5/8″-11 UNC spindle threads, making it easier to match the grinder to the wheel and application.

Key Features

• Pneumatic turbine drive: The turbine-driven design suits continuous industrial use and heavy grinding applications.
• Speed options: The family includes models with 12,000 rpm and 8,500 rpm free speed options.
• Two wheel diameters: Choose between models with a maximum wheel diameter of 125 mm or 180 mm.
• Different spindle threads: Selected models are available with M14 or 5/8″-11 UNC spindle threads.
• Defined air demand: Air consumption reaches 9 l/s at free speed and 16 l/s at maximum output.
• Air connection and service support: The series uses BSP or NPT air inlet threads, and dedicated service accessories are available, including Allen keys, a face spanner, and locking kits.

Frequently Asked Questions

How do I choose the right GTG25 model for my application?
Step 1: Decide whether you need a faster grinding setup or more controlled operation.
Step 2: Select between the 12,000 rpm and 8,500 rpm versions.
Step 3: Check whether your application needs a maximum wheel diameter of 125 mm or 180 mm.
Step 4: Make sure the spindle thread matches your wheel setup, such as M14 or 5/8″-11 UNC.
Step 5: Verify the air connection and any service accessories you want to keep on hand.

What is the difference between the 12,000 rpm and 8,500 rpm versions?
The main difference is the free speed and the wheel-diameter configuration available in each variant.
The 12,000 rpm models suit faster grinding tasks, while the 8,500 rpm models include versions with a 180 mm maximum wheel diameter.

Which accessories are available for the GTG25 family?
Available accessories include an Allen key for flange nut, Allen key for support handle, a face spanner, flange washers for grinding and cutting-off applications, and locking kits in imperial or metric versions.

Can the GTG25 be used for both grinding and cutting-off?
Yes.
Separate flange washers are available for grinding applications and for cutting-off applications, so the setup can be matched to the task.

What should I check before ordering a GTG25 grinder?
Check the exact model code, spindle thread, maximum wheel diameter, and air inlet thread.
That ensures the grinder matches your wheel setup and air system.

What service tools are useful for maintenance?
It helps to keep the proper service tools available, such as the Allen key for the flange nut, the Allen key for the support handle, and the face spanner.
These tools simplify installation, accessory changes, and routine handling.