Mode A
Pull arm
For inward-opening doors, with the drive on the inside. The door leaf must be at least 680 mm wide.
Automatic swing doors
Automatic swing doors that still close when the power is off.
Swing door operators suit entrances where there is no room for a sliding door, and they give step-free, hands-free access. Our own operator is the CDS-SW85 Swing Door: it opens under power and closes on a spring.
CDS-SW85 at a glance
- Leaf width
- 0.7 m to 1.4 m
- Leaf weight
- up to 400 kg
- Opening angle
- 80° to 100°
- Door type
- Single or double leaf
Features
Six reasons to specify the CDS-SW85.
1
Power open, spring close
A 24 V DC motor opens the leaf and a mechanical spring closes it, so the door shuts even without power.
2
Pull arm or push arm
One drive, two mountings: pull arm for inward-opening leaves, push arm for outward-opening leaves.
3
Self-learning set-up
At commissioning the drive teaches itself the door's travel, opening direction and stopping points.
4
Opens by hand too
The leaf can be pushed open at any time and returns under spring control.
5
Obstruction detection
Fitted as standard, with inputs for safety sensors, access control and a fire-alarm signal.
6
Adjustable spring force
The closing force is set on site to suit leaves from 0.7 m to 1.4 m wide.
Technical data
Specifications
| Parameter | CDS-SW85 |
|---|---|
| Door type | Single leaf or double leaf (synchronised) |
| Power supply | AC 100 to 240 V, 50/60 Hz |
| Power consumption | 100 W max |
| Drive unit | DC 24 V motor with mechanical spring closer |
| Obstruction detection | Standard |
| Opening angle | 80° to 100° |
| Opening and closing time | 3 to 7 s each, adjustable |
| Hold-open time | 0.5 to 30 s, adjustable |
| Drive arm | Pull arm (inward) or push arm (outward) |
| Operator housing | 610 × 128 × 88 mm |
| Environment | −20 °C to +45 °C, up to 85% RH |
Figures from the swing door product brochure, revision 2026.09.
Leaf capacity
Wider leaves carry less weight.
The maximum leaf weight falls as the leaf gets wider. Tell us the width and weight of your door and we will confirm it is within range.
- 0.7 m400 kg
- 0.9 m250 kg
- 1.1 m160 kg
- 1.4 m100 kg
Indicative values read from the capacity curve in the product brochure.
Mounting
Two ways to fit it.
Mode B
Push arm
For outward-opening doors, with the drive on the inside. The reveal between the door face and the opposite wall must be less than 180 mm.
Where they're used
Hands-free access where a sliding door won't fit.
Swing door operators are a practical way to automate an existing door, and to give barrier-free access for wheelchair users and the elderly.
- Hospitals and care homes
- Office buildings
- Shops and shopping centres
- Hotels and restaurants
- Schools
- Theatres and halls
Questions
Automatic swing doors: what people ask us.
What happens to an automatic swing door when the power goes off?
The CDS-SW85 closes on a mechanical spring, so the door still shuts without power. It can also be pushed open by hand at any time and will close again under spring control.
Can a swing door operator be fitted to an existing door?
Usually, yes. The operator mounts above the door and connects to the leaf with an arm, so it suits retrofits. The pull-arm mounting needs a door leaf at least 680 mm wide. We check the door, frame and hinges on a site visit before we quote.
What is the difference between a pull arm and a push arm?
It depends on which way the door opens. A pull arm is used when the door opens towards the operator, and a push arm when it opens away from it. The CDS-SW85 does both with the same drive.
Do you repair automatic swing doors from other brands?
Yes. We service and repair automatic swing door operators of all makes, including Dorma, Tormax and Geze, whether or not we installed them.
Get a quote
Tell us about the door. We'll come and look at it.
Send the opening size and what the entrance is used for, or ask for a site visit. We quote on new installations, replacements and service contracts.