r-tec LINEAR 400

Overview

Where the rest of the swing-gate range relies on an arm, LINEAR 400 takes a different route: instead of the classic articulated (COUPER) or telescopic (PRINCE) mechanism, it uses a linearly extending piston/actuator. It is the most powerful 24 V DC option in the up-to-3 m leaf length and 400 kg max door weight segment — a rugged, battery-backup-ready standard motor for wide leaves and heavy metal or wood residential doors.

Why piston-type mechanism?

The articulated (jointed) arm works smoothly with wall struts at a certain distance from the door hinge. On sites with deep struts + narrow wall clearance, the articulated arm falls short. The piston actuator moves in a single straight motion and can be placed perpendicular to the wall — there is no deep strut requirement.

Criterion	COUPER 24 (articulated)	PRINCE 24 (telescopic)	LINEAR 400 (piston)
Max. leaf	2 m	4 m	3 m
Max. weight	250 kg	500 kg	400 kg
Motor power	80 W	70 W	120 W
Mechanism	Two-piece jointed	One-piece extending	Piston (straight)
Strut requirement	Deep	Medium	None / minimum
Aesthetic accent	Classic	Modern	Industrial

→ For wide + heavy doors on sites with narrow wall clearance, LINEAR 400 is the first choice.

G24 universal control board

LINEAR 400 is driven by the G24 board. Same board as COUPER, JET and PRINCE — dealer stock strategy remains simple. In double-leaf systems, two motors are synchronised with the G24-MTS module.

• 230 VAC input → 24 VDC output
• 2 photocell channels (opening + closing)
• 433 MHz rolling code receiver slot
• Battery charger board compatibility — work continuity during power outages
• Flasher + traffic light + electric lock terminals
• Motor type selection via BT2: swing = D4 LED solid on

Target projects

• Villa main entrance double-leaf gate (wide and heavy)
• Residential garden heavy metal/wood gate
• Wide-leaf estate internal additional entrance gate
• Sites with deep struts + narrow wall clearance
• Eco-house + solar-powered systems (24 V naturally)

Field discipline

• Piston bearing lubrication — Lubricate piston body with liquid grease once every 12 months; dry operation wears the piston bearing.
• Stroke length — Piston extends to 820 mm + extended stroke when fully open; wall clearance is measured in site survey.
• Power trimpot — G24 T1 trimpot is set to a high value for the 400 kg door; calibration is mandatory so as not to strain a light door.
• Double-piston synchronisation — Two LINEAR 400 motors in a double-leaf system are driven with G24-MTS; follow the order in the document for sync limit setting.
• Periodic maintenance — Once every 12 months piston lubrication + connection tightening + reducer check.