DSM-25-270-CC-HD-A-B

Product information

Product Overview

The DSM is Festo’s semi-rotary vane drive: a double-acting rotary actuator with a swivel range that can be adjusted across the whole stroke. Festo offers it with a spigot shaft, a hollow flanged shaft, as a tandem rotary vane with spigot shaft, and as a tandem rotary vane with flanged shaft, plus a heavy-duty bearing (HD) version. It is the family you use when something has to be turned through a defined angle — a flap, a diverter, a clamping jaw — rather than moved along a line.

This page covers DSM-25-270-CC-HD-A-B — Festo type code DSM-25-270-CC-HD-A-B, order number 1369124. Everything below is taken from Festo’s own product data for this order number: the technical values, the category path, the GTIN and the lifecycle notice are all reproduced from the manufacturer’s page rather than paraphrased, so you can check them against Festo’s documentation before you buy.

Why Buyers Specify This Model

• Double-acting semi-rotary vane drive with a swivel angle that is infinitely adjustable across the entire swivel range
• Several shaft and bearing versions in the same family, including spigot shaft, hollow flanged shaft and tandem vane designs
• Heavy-duty bearing (HD) version for higher loads on the shaft
• Metal fixed stops to define the end positions
• Compact rotary motion where a linear cylinder plus linkage would be bulky
• With spigot shaft, hollow flanged shaft, tandem rotary vane and spigot shaft, tandem rotary vane and flanged shaft or heavy-duty bearing (HD)

Technical Specifications (Official Festo Data)

Festo publishes the parameter set for this product in the series catalogue rather than as a per-article key/value block, so we do not reproduce a shortened table here. The ordering data below and the catalogue link give you Festo’s own figures. Send us the values you need and we will pull them from the manufacturer’s catalogue for your variant.

Source: Festo official product page for order number 1369124 (GTIN 4052568231286). Values are reproduced unchanged; they are not converted or rounded.

Ordering Information

Item	Official data
Manufacturer	Festo
Type code	DSM-25-270-CC-HD-A-B
Festo order number	1369124
GTIN	4052568231286
Festo category path	Products Actuators Pneumatic cylinders Rotary actuators Vane drives DSM DSM-25-270-CC-HD-A-B +2 17 videos Semi-rotary drive DSM-25-270-CC-HD-A-B 1369124
Series	Semi-rotary drive DSM

The order number and the type code both have to match. A single character in the type code can change the valve function, the cushioning or the connection, and it always changes the order number.

Lifecycle and Availability

Festo’s product page for this order number does not currently carry a discontinuation or successor notice, so we list it as a standard catalogue item. Availability is always confirmed against Festo’s stock at the time you order — we do not keep a stock figure on this page because it would be out of date the day it was written.

Official Documentation

Every figure on this page comes from Festo. Use the manufacturer’s own documents to verify it:

• Festo official product page — DSM-25-270-CC-HD-A-B — the source of the technical values and the lifecycle notice above.
• Festo official series catalogue (PDF) — Festo’s own catalogue for this series, including the type code breakdown and the ordering data for every variant.

Ordering This Part

Before we quote, please confirm:

• the complete Festo type code, exactly as it appears on the drawing or the nameplate — not just the series name;
• the order number if you have it, so we can cross-check the code against Festo’s catalogue;
• the quantity and the delivery address;
• for cylinders, the stroke and the mounting style, because both are fields in the order code;
• for valves and sensors, the electrical connection and the voltage, because these are fields in the order code.

Send us a photograph of the nameplate if the code is hard to read — that is usually the fastest way to avoid shipping the wrong variant.

Frequently Asked Questions

What does the code DSM-25-270-CC-HD-A-B describe?
Festo builds the DSM code from the size, the swivel angle, the stop/cushioning field, the bearing version and the shaft connection. The 270 in this code is the swivel angle in degrees, HD denotes the heavy-duty bearing version, and the trailing letters describe the shaft and air connection. Always quote the complete code — every field changes the part number.

Can the swivel angle be changed after delivery?
Festo states that the swivel angle is infinitely adjustable across the entire swivel range, with metal fixed stops. The angle in the order code sets what the unit is built for, so confirm the required angle when ordering.

What is the HD version for?
HD is the heavy-duty bearing version. Use it when the shaft carries an additional radial or axial load from the mechanism it drives, rather than just the torque of the vane.

Is a shock absorber needed at the end positions?
For the CC variant with self-adjusting shock absorbers, the end-position impact is handled by the absorbers that are part of the code. Tell us the duty at the end positions and we will confirm the right version.