DSM-12-270-CC-FW-A-B Festo Semi-rotary Drive

USD 272.39

Semi-rotary vane drive with 0-246° swivel range, integrated shock absorbers, and double-acting operation for high-precision industrial automation tasks.

SKU Festo-547573 Category
Vane drives

DSM-12-270-CC-FW-A-B Festo Semi-rotary drive

Model Identifier DSM-12-270-CC-FW-A-B
Official Part Number 547573
GTIN Standard 4052568188948

Technical Overview

The DSM-12-270-CC-FW-A-B is a high-performance semi-rotary vane drive engineered for precision automation. Featuring a double-acting vane design, it offers a versatile swivel angle range of 0 to 246 degrees with integrated shock absorbers at both ends for controlled deceleration. This unit is constructed with a robust wrought aluminium alloy housing and a nickel-plated steel drive shaft, supporting flexible mounting positions and reliable position detection via proximity switches.

Key Features

  • Double-acting vane drive mechanism
  • Integrated shock absorbers at both ends for cushioning
  • Infinitely adjustable swivel angle from 0 to 246 degrees
  • Position detection compatible with proximity switches
  • Optional mounting position for design flexibility
  • Fine adjustment range of -3 degrees
  • RoHS-compliant construction

Delivers a theoretical torque of 1.25 Nm at an operating pressure of 0.6 MPa (6 bar, 87 psi).

Technical Specification Matrix

ParameterValue
Size12
Cushioning angle15 deg
Rotation angle adjustment range0 deg ... 246 deg
Swivel angle0 deg ... 246 deg
Permissible stop radius≥15 mm
CushioningShock absorber at both ends
Mounting positionoptional
Fine adjustment-3 deg
Mode of operationDouble-acting
DesignVane
Position detectionVia proximity switch
Symbol00991265
Operating pressure (MPa)0.2 MPa ... 1 MPa
Operating pressure (bar)2 bar ... 10 bar
Max. swivel frequency at 0.6 MPa (6 bar, 87 psi)1.5 Hz
Repetition accuracy0.1 deg
Operating mediumCompressed air to ISO 8573-1:2010 [7:-:-]
Note on operating and pilot mediumLubricated operation possible (in which case lubricated operation will always be required)
Corrosion resistance class CRC0 - No corrosion stress
LABS (PWIS) conformityVDMA24364-B1/B2-L
Ambient temperature-10 °C ... 60 °C
Max. stop force90 N
Max. axial force18 N
Max. radial force45 N
Theoretical torque at 0.6 MPa (6 bar, 87 psi)1.25 Nm
Permissible mass moment of inertia0.008 kgm²
Product weight300 g
Type of mountingVia female thread
Pneumatic connectionM5
Note on materialsRoHS-compliant
Material drive shaftSteel Nickel-plated
Material sealsTPE-U(PU)
Material housingWrought aluminium alloy

Industrial Applications

1. High-Precision Flapper Diverter for Electronics Sortation

Utilizing the swivel module to actuate a diverting flapper on a high-speed small-parts conveyor line, routing delicate electronic components to different inspection tracks based on upstream machine vision data.

Problem Solved

Diverting lightweight, fragile electronic components safely and rapidly without impact damage, leveraging the CC shock absorbers at both ends and 0.1-degree repetition accuracy to precisely align the diverter arm at up to 1.5 Hz swivel frequency.

1.5 Hz max swivel frequency0.1 deg repetition accuracyShock absorber at both endsDouble-acting1.25 Nm theoretical torque

2. End-of-Arm Tooling (EOAT) Part Orientator for Pick-and-Place

Mounted on a multi-axis robotic arm, the semi-rotary drive is used to rotate small molded plastic or PCB components up to 180 degrees before inserting them into their final blister packaging.

Problem Solved

Minimizing robotic payload to maintain high cycle speeds. The lightweight 300 g wrought aluminium alloy housing and compact vane design provide sufficient torque while remaining within the 0.008 kgm² permissible mass moment of inertia, preventing robot arm overload.

300 g product weight0.008 kgm² permissible mass moment of inertiaVane designWrought aluminium alloyM5 pneumatic connection

3. Automated Rotary Escapement for Fastener Indexing

A rotary escapement mechanism integrated into an automated assembly machine, rotating continuously between defined stops to index and present small mechanical fasteners to a pneumatic press.

Problem Solved

Needed a compact actuator capable of customizable variable angle adjustments up to 246 degrees with reliable PLC integration. The drive utilizes proximity switch position detection and handles continuous indexing within standard 2 to 10 bar factory air systems.

0 deg ... 246 deg rotation anglePosition detection via proximity switch2 bar ... 10 bar operating pressurePermissible stop radius >=15 mmFine adjustment -3 deg

[Download-Datasheet]

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