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Sustainability
Using Turbo Tight
®
results in shorter tightening cycles. This in turn
means less heat development and a cooler tool. It also helps to reduce
energy consumption with 10 % and prolong tool lifetime in high-cycle
environments. In general the losses during a tightening can be reduced by
speeding up the tightening phase, but remember: the big savings come
from standby.
How are cycle times reduced?
Turbo Tight
®
controls the motor speed to achieve the fastest possible
tightening without excessive overshoot. Comparing it to a traditional Two
Step strategy, Turbo Tight
®
runs faster for a longer period.
How is reaction force reduced?
Turbo Tight
®
uses the tool’s mass moment of inertia to reduce the reaction
force transmitted to the operator. The increased control of the motor in
combination with the fast dynamic regulation enables the tool to minimize
the reaction force from the tightening.
How come set-up is so easy?
Turbo Tight
®
is a strategy that controls the motor speed based on the actual
torque rate and the remaining torque of the joint. Since all these parameters
are dynamically calculated during the tightening, the only user input
required is the target torque.
How does Turbo Tight
®
provide energy savings?
Atlas Copco has been ISO 14001 certified since 2010, ensuring the planning,
execution, control and optimization of continuous improvement processes
for all Atlas Copco Industrial Technique products. If we compare the energy
consumption of a Power Focus 4000 running a Tensor ST tool with a Two
Step set-up, with the energy consumption of a Power Focus 600/6000
running a Tensor ES/STR tool with Turbo Tight
®
, we get the following result.
Target Speed
Pause Time
Target Torque
First Torque
Rundown Complete
First Speed
Start Stop
TIME
TORQUE/TIME ANGLE/TIME SPEED/TIME
Rundown Tightening
Two Step Tightening Strategy
The two step tightening strategy is very similar to the Quick step strategy
with the exception that it adds a small time delay between the first step and
the final step, to further counteract short-term relaxation effects in the joint.
Fine-tuning the Two Step Tightening strategy
When the First target is reached the tool will make an immediate stop for a
specified time before it continues with the final step. The First torque value
and the Pause time should be chosen to improve ergonomics for hand-held
tools.
Parameter Description Default Value
First torque Target torque for the first step
First speed Target speed for the first step
Pause time Time between first and second step 50ms
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