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TAKTWERKLineartechnik

The cycleof a machineis setin the axis.

Linear units, gantries and vertical axes for assembly and test systems. Four series, nine frame sizes, every single axis measured before it ships.

1968founded
68people
82 %made in house
9frame sizes
Ground raceway of a hardened guide rail, wet, with beads of coolant
Linear unit made from an aluminium profile with a black carriage on two ground steel railsLX-120

Sizing

Do the maths with us.

The cycle time of an axis rests on three quantities: distance, acceleration and top speed. Over short distances the top speed is never reached, and acceleration alone decides. Move the stroke and watch where that boundary lies.

1 200 mm
Series
Time per move
—
speed reached
—

SpeedTrapezoidal profile with a constant section in the middle.

Time

Trapezoidal profile without jerk limiting, plus the settling time of the series.

hair 0.07 mm0.002

1 mThe travel of a mid-sized gantry axis.

100 mmThe width of a hand. That is how far the carriage moves between two stations.

1 mmRoughly the thickness of a credit card.

0.002 mmThe repeatability of the LD. A human hair is thirty-five times thicker.

Accuracy

Two thousandths.

Repeatability is a number nobody can picture. So here is the same detail in four jumps, from the travel to the tolerance. The last jump is the big one: from one millimetre to two thousandths is a factor of five hundred.

This is not measured at the motor but at the carriage. An optical scale lies in the profile slot and closes the control loop behind everything that could stretch.

Series

Four drive types, nine frame sizes.

Each type solves a different problem. The table shows where the limits are.

All series

Four drive types, nine frame sizes.
Frame sizeMax. strokeMax. payloadMax. speedMax. accelerationRepeatabilityProfile widthDyn. load rating C
LX series, Belt-driven axis
LX-803,200 mm40 kg5.0 m/s20 m/s²± 0.050 mm80 mm9.5 kN
LX-1204,400 mm80 kg5.0 m/s18 m/s²± 0.050 mm120 mm17.8 kN
LX-1605,600 mm120 kg4.5 m/s15 m/s²± 0.050 mm160 mm28.1 kN
LK series, Ball screw axis
LK-100900 mm120 kg1.0 m/s10 m/s²± 0.010 mm100 mm17.8 kN
LK-1451,500 mm250 kg0.8 m/s8 m/s²± 0.010 mm145 mm34.5 kN
LD series, Direct drive
LD-1301,600 mm30 kg6.0 m/s50 m/s²± 0.002 mm130 mm17.8 kN
LD-1903,000 mm60 kg5.0 m/s40 m/s²± 0.002 mm190 mm34.5 kN
LH series, Vertical axis
LH-90600 mm60 kg1.5 m/s12 m/s²± 0.010 mm90 mm17.8 kN
LH-1401,200 mm120 kg1.2 m/s10 m/s²± 0.010 mm140 mm34.5 kN

Applications

Where the axes work.

Three machines, three different reasons why the sizing came out other than expected.

Manufacturing

Eighty-two per cent is made in house.

Profiles, guide faces, head pieces and carriages we make ourselves. Motors, rolling elements and seals are bought in. That decides how quickly we can deliver a special length, and it decides who is liable when a dimension is wrong.

About the plant

Five enclosed machining centres in a row under a sawtooth roofPlant, hall 2

Sizing

Size your axis.

Enter stroke, load, mounting orientation and environment. You get the matching frame size, the achievable cycle time, the calculated service life and a price range.

Go to sizing