Actuator

ACT03 Web Guiding Actuator

ACT03 is a high-thrust servo actuator for web guiding systems, designed for heavier correction structures, larger guiding frames and higher correction-force requirements. It is used as the final execution mechanism to move the correction frame according to controller commands.

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ACT03 servo actuator with cylindrical drive body and upright motor housing

Key Features

High-thrust servo correction for demanding web guiding layouts.

High-thrust servo actuator design for demanding correction requirements.
Suitable when higher thrust is required than standard ACT01 actuator models.
Electronic limit control and real-time drive-position feedback support stable operation.
Works as the final execution mechanism in closed-loop web guiding systems.
Selection should consider total load, friction coefficient, required stroke and installation space.

Model	ACT03-T800
Product Type	High-thrust servo actuator for web guiding systems
Maximum Speed	45 mm/s
Drive Stroke	±100 mm
Maximum Thrust	8000 N
Working Voltage	24 V DC
Ambient Temperature	−10°C to +80°C
Air Humidity	0–90% RH, non-condensing
Protection Class	IP54
Shell Material	45# steel
Rated Power	400 W

Replacement & Spare Part

Replacing an ACT03 on an existing machine?

ACT03 is a Pausource actuator and runs only with the PC100A controller. It does not work with EURDOW controllers such as the WGC01 or WFC01. If your machine has a PC100A and a heavy correction frame, this is the unit to compare against.

Availability

Normally held in stock. Confirmed orders usually dispatch within 1–2 working days. That is dispatch, not delivery — transit time depends on the courier and destination, and we quote it with the price.

What to send us

A photo of the model marking on the body, a photo of the actuator in place showing both mounting ends and the cable, confirmation that the controller is a PC100A, and the quantity.

What ships

The actuator. Mounting hardware can be supplied if the existing brackets are damaged.

Like the ACT01, the ACT03 uses electronic limits and runs a stroke self-learning routine on the PC100A after installation, so its ±100 mm stroke does not have to match the mechanical travel of the frame. Installation space is the real constraint.

Dimension drawing: available on request. Ask for it by email and check it against the unit on your machine before ordering.

ACT03 or ACT01?

Both run on the PC100A. The ACT03 is only needed when the correction load is beyond what an ACT01 can move reliably — wide or heavy frames, high web tension, or slides with high friction.

	ACT01	ACT03
Maximum thrust	1000 N or 2500 N	8000 N
Drive stroke	±40, ±50 or ±90 mm	±100 mm
Maximum speed	40–50 mm/s	45 mm/s
Rated power	150 W	400 W
Working voltage	24 V DC	24 V DC
Protection / shell	IP54, 45# steel	IP54, 45# steel
Controller	PC100A	PC100A

If an ACT01 on your machine keeps stalling or moving slowly under load, an ACT03 may be the answer — but check the slides for binding first, because a frame that has become stiff will defeat any actuator.

Commonly reported ACT03 symptoms

Not every fault that looks like a failed actuator is one. These are the patterns we are asked about most often, and what they usually turn out to mean.

Slows down or stalls under load

Check the frame slides and bearings for binding before blaming the actuator. A heavy frame with high friction can exceed even 8000 N.

Runs to one end and stays there

Usually the incoming lateral error is larger than the correction range, which points at the roll or upstream alignment rather than the actuator.

No movement and the motor hums

Points at the drive stage or a seized screw. Try moving it under manual command with the frame unloaded.

Wrong limits after a replacement

The new actuator has not learned the frame yet. Run the stroke self-learning on the PC100A before going back to automatic.

If the symptom is not on this list, describe it in your message. It is cheaper for both of us to identify the actual fault than to ship the wrong part.

Selection Notes

Choose ACT03 when the correction structure requires high thrust, longer stroke or stronger servo actuator capacity.

Good Fit

Larger correction frames, heavier loads, higher friction structures and demanding web guiding applications.

Check First

For standard correction loads or compact guiding frames, the ACT01 on the same PC100A controller may be more suitable and cost-effective.

System Match

Runs only with the Pausource PC100A controller, together with an ES100 / ES201 or CCD sensor and a correction frame selected for web width, load, stroke and installation space.