LINAK LA23 Compact Industrial Electric Push Rod

Pitch (mm) Maximum holding load without short circuit (N) Maximum holding load with short circuit (N)

20 100 300

12 75 900

9 75 1200

6 120 1500

5 160 1800

3 250 2500

It can be seen that when the motor is short circuited, the self-locking ability is greatly improved. The IC version automatically provides this function when powered on. When using a DC motor for soft stop, reverse high voltage spikes will occur, and the power supply must be able to withstand them without shutting down the output.

Installation size and built-in size calculation

The external dimension drawing of LA23 (see original manual for details) defines BID (Built in Dimension, which is the center distance between the two mounting holes when retracted). BID depends on safety options, stroke length, and screw pitch.

For the absence of a safety nut with a stroke of 20-49 mm and a pitch of 6/9/12/20, the minimum BID is 160mm; When the pitch is 3/5, the minimum BID is 168mm. For safety nuts (push), similar but slightly different. When the stroke is ≥ 50mm, BID is usually "base+stroke". For example, when there is no safety nut, pitch 6/9/12/20, and stroke 50-200mm, BID=110+stroke (mm).

In addition, the extended BID version can be ordered, and its maximum allowable value is limited by the formula: for pitch 6/9/12/20 and without safety nuts, the maximum BID ≤ 730 stroke; For pitch 3/5, maximum BID ≤ 738 stroke, etc. When designing, it is necessary to choose the appropriate built-in size according to actual needs.

The tolerance for all built-in dimensions and travel is ± 2 mm.

Cables and connectors

LA23 offers multiple cable options:

10 Pole Micro Fit Flywire (Black): Used for locating options 03, 1X, 2X, 3X, 50, 52, 6X, etc.

6-pole flying wire (black): used for standard non positioning or potential free end stop options.

The cable length can be selected from 1.5m, 2.5m, 5m, 10m, etc. The wire lock must be ordered separately to ensure stress relief at the joint.

Environmental and Mechanical Reliability Testing

9.1 Climate testing

Low temperature storage: -45 ° C for 16 hours, then -40 ° C for 72 hours, without connecting power, test function after restoring room temperature.

Low temperature operation: -30 ° C for 2 hours, followed by full load and reduced voltage testing.

High temperature storage: 70 ° C for 72 hours.

High temperature operation: 55 ° C for 2 hours, followed by full load and reduced voltage testing.

Rapid temperature change: -30 ° C ↔ + 70 ° C, conversion time<10 seconds, 100 cycles.

Slow temperature change: 5 ° C/min,+70 ° C for 60 minutes, -30 ° C for 30 minutes, 1000 cycles (90 days).

Salt spray: ISO 9227, exposed for 500 hours.

Protection level: IP66 (dustproof IP6X, waterproof IPX6100 liters/minute spray for 3 minutes).

Chemicals: diesel, hydraulic oil, ethylene glycol, saturated urea solution, lime solution, NPK fertilizer soaked for 96 hours, tested for corrosion.

9.2 Mechanical Testing

Free fall: Drop from a height of 0.4 meters onto the felt floor, on all sides.

Vibration: Random, impact, and bump testing.

9.3 Electrical Immunity Test

LA23 has passed multiple EMC immunity tests:

Radiation immunity: 30-200 V/m (ISO 11452-2), 10 V/m (IEC 61000-4-3, 27-6000 MHz).

RF common mode: 10Vrms, 0.15-80 MHz (IEC 61000-4-6).

Power frequency magnetic field: 30 A/m, 50/60 Hz (compliant with ISO 7176-21 wheelchair EMC requirements).

Transient conduction: ISO 7637-2 pulses 1, 2a, 2b, 3a, 3b, 4,5b.

Electrostatic discharge: Contact discharge up to 8kV (ISO 10605) or 6kV (IEC 61000-4-2); Air discharge can reach a maximum of 15kV.

Electrical fast transient: ± 2kV (IEC 61000-4-4).

Surge: ± 0.5kV line to line, ± 1kV line to ground.

9.4 Launch Requirements

Narrowband radiation (1m distance): 30-75 MHz 52-42 dB μ V/m; 75-400 MHz 42-53 dBμV/m； 400-1000 MHz 53 dBμV/m。

Broadband radiation (1m): 62-52 dB μ V/m (30-75MHz), 52-63 dB μ V/m (75-400MHz), 63 dB μ V/m (400-1000MHz).

10m distance radiation: 30-230 MHz 30 dB μ V/m; 230-1000 MHz 37 dBμV/m（CISPR 16-2-3）。

Conducted emission (DC port): 0.15-0.5 MHz 79 dB μ V (QP)/66 dB μ V (AV); 0.5-30 MHz 73 dBμV（QP）/60 dBμV（AV）。

Conducted transient emission: 12V system+75V/-112V; 24V system+150V/-150V (ISO 7637-2).

These tests ensure the compliance of LA23 in electromagnetic environments such as industrial, agricultural, and mobile machinery.