Justech Linearmotor (Schwarz) for linear actuator builds – 12V DC, 1500N load

The essentials

If you’re building (or upgrading) a setup that needs controlled pushing, pulling, lifting or lowering, the Justech Linearmotor in Schwarz is a straightforward 12V DC option on paper. It’s designed for linear actuator style work rather than anything exotic: power a stroke, hit the ends safely, and keep noise down for day-to-day use.

The headline numbers are a 150 mm/6-inch stroke length and a claimed load capacity of 1500N/330lbs. It also includes limit switch behaviour and an auto-stop style concept, which matters because linear setups can be unforgiving if they’re not told when to stop. Still, it’s not a “fit and forget” part—whether it’s worth it depends a lot on your load profile and how you plan to mount and control it.

Key points

This is a linearmotor meant to drive a linear actuator motion at 12V DC, with a stroke designed for repeated up/down travel. It’s built around an aluminium alloy body and stainless steel supports, so it’s aimed at setups that see regular use without immediately worrying about light corrosion or knocks. Noise is one of the more consumer-friendly details: the stated noise level is under 42dB, which is encouraging if your build is used in a living space or near people.

The limit-switch and auto-close/stop function is the other big practical angle. Each side of the actuator has a limit switch so the motor should automatically cut electricity when the mechanism reaches beyond a certain bar position. On top of that, the motor is described as not working idle (i.e., it shouldn’t run while stalled at the end).

Where it shines in everyday use

In a typical build—say, a small lifting platform, a mechanism that raises a tray, or a gate/bracket that needs predictable linear movement—you care about three things: stroke length, stopping control, and noise.

• Stroke length: 150 mm/6 inches gives you a decent travel window for many compact motion projects.
• Stopping behaviour: the limit switch concept should help prevent continuous running at the end of travel.
• Noise: under 42dB (as stated) is the sort of figure that makes you less conscious of operation compared with louder actuator setups.

It’s also rated at 4 mm/s speed, so it’s the kind of motion you expect to feel smooth and deliberate rather than instant.

Tech specs

• Name: Justech Linearmotor - Schwarz
• Type: Linear actuator motor (12V DC)
• Voltage: 12V DC input
• Load capacity: 1500N/330lbs
• Stroke length: 150 mm/6 inches
• Nominal power: 20W (maximum 30W)
• Speed: 4 mm/s
• Protection class: IP54
• Noise level: less than 42dB
• Materials: aluminium alloy body, stainless steel supports

What to watch before you buy

It’s a solid set of fundamentals, but there are a few limitations to consider.

First, the rated performance is given as a set of figures (load capacity, speed, power), yet real-world outcomes depend on how your system is mounted and how much force you actually need during the motion. If your build is close to the load limit or involves awkward angles/side loads, this may feel less impressive than the headline 1500N/330lbs suggests.

Second, speed at 4 mm/s is not fast. If your project needs quicker travel, you may find it too slow on purpose.

Finally, you’ll want to think about control and wiring in your own system. The description talks about limit switches and auto-stop behaviour, but it doesn’t spell out controller types, wiring diagrams, or how you’ll trigger movement in your specific setup.

Pros

• Limit-switch and automatic electricity cut-off at travel ends (as described)
• Under-42dB noise level for quieter day-to-day operation (as stated)
• IP54 protection class positioning for general protection
• Aluminium alloy body with stainless steel supports aimed at durability
• 150 mm/6-inch stroke length and 1500N/330lbs load capacity on paper

When it makes sense

A good match if you’re sourcing a dependable 12V DC linearmotor for a compact mechanism and you want quieter operation plus stopping protection. It suits builds where you need controlled up/down movement, and where having a defined stroke and limit switch behaviour helps reduce the risk of overrun.

When to skip it

It may not be the best choice if you need very fast motion, or if your design pushes close to the stated load capacity and you can’t reduce side forces. It might also feel like overkill if you only need tiny movements and don’t actually benefit from a 150 mm stroke length.

Mini FAQ

Is this suitable for outdoor or damp areas?

It’s listed with an IP54 protection class, which suggests it’s intended to cope with more than indoor-only environments, but your exact exposure level still matters.

How much travel does it offer?

The stated stroke length is 150 mm/6 inches.

Does it stop automatically at the ends?

The description explains that it has limit switches on each side, and that electricity should be disconnected when it reaches a position beyond the bar, plus a self-stop style approach.

Is it quiet?

The noise level is given as less than 42dB, which is relatively friendly for everyday use.

What power does it use?

Nominal power is listed as 20W, with a maximum of 30W.

Final verdict

The Justech Linearmotor (Schwarz) is a practical 12V DC option for linear actuator-style builds, especially if you care about quieter operation and safer end-of-travel behaviour. It looks more like a reliable mid-range workhorse than a niche performance part, and that’s often exactly what you want for home or light commercial mechanisms. Just make sure your needed speed and force are realistic for the stated 4 mm/s and 1500N load, and double-check that your mounting and control approach won’t introduce side loads or tricky overrun conditions.