Overview and Core Specifications
The Festo DSBC-125-320-D3-PPSA-N3 (manufacturer ID 8165673) is a double-acting ISO cylinder built to ISO 15552, with a 125 mm piston diameter and a 320 mm stroke. It delivers a theoretical advancing force of 7363 N and retracting force of 6881 N at 6 bar, making it suitable for medium-to-heavy linear actuation tasks. The cylinder operates within a pressure range of 0.2 to 10 bar and an ambient temperature range of -20°C to 80°C, offering flexibility across different production environments.
The unit features a profile barrel design with a piston rod that has an external M27x2 thread. Its mounting position is unrestricted, and it can be mounted using internal threads or accessories, simplifying integration into existing machine frames. The pneumatic connection is G1/2, a common port size that aligns with standard valving and tubing.
Key Features for Automation and Control
One of the standout features is the self-adjusting pneumatic end-position cushioning, which automatically adapts to load and speed changes. This reduces impact energy at the end positions (rated at 3.3 J) and minimizes mechanical wear, extending service life. The cushioning length is 45 mm, providing a controlled deceleration zone that helps protect both the cylinder and the driven load.
For position sensing, the cylinder includes sensor slots on three sides (D3 feature), allowing proximity sensors to be mounted in multiple orientations. This flexibility simplifies the setup of position feedback systems, which is critical for applications requiring precise stroke monitoring or sequence control. The cylinder is designed for use with proximity sensors, enabling easy integration into automated control loops.
Materials and Environmental Suitability
The DSBC-125-320-D3-PPSA-N3 is constructed with materials selected for durability and corrosion resistance. The cylinder barrel is made of smooth-anodized wrought aluminum alloy, while the piston rod uses high-alloy steel, providing strength and resistance to wear. The covers are die-cast aluminum with a protective coating. The corrosion resistance class is rated at 2 (moderate corrosion stress) per Festo standard 940 070, meaning it can handle typical industrial atmospheres without rapid degradation.
All external surfaces comply with corrosion resistance class 3, and the unit meets LABS (PWIS) conformity to VDMA24364-B1/B2-L, making it suitable for use in paint shops or environments where silicone-free operation is required. The materials are RoHS-compliant, and the cylinder can operate with lubricated or unlubricated compressed air (ISO 8573-1:2010 [7:4:4]), though oil lubrication is required if the unit is to be used further after initial operation.
Weight and Mass Considerations
When planning machine dynamics, the cylinder's mass is an important factor. The basic weight with 0 mm stroke is 6768 g, and each additional 10 mm of stroke adds 247 g. The moving mass at 0 mm stroke is 2245 g, with an additional 63 g per 10 mm of stroke. These values help engineers calculate total load, inertia, and required guide support. The relatively low moving mass relative to the force output contributes to responsive operation.
Integration and Application Value
This cylinder is part of Festo's modular product system, allowing configuration to match specific needs. It is suitable for a wide range of automation tasks, including clamping, feeding, lifting, and positioning in manufacturing lines. The self-adjusting cushioning reduces setup time because it does not require manual adjustment when loads change. The sensor slots on three sides simplify the addition of feedback, and the ISO 15552 compliance ensures interchangeability with other standard cylinders.
For procurement teams, the DSBC-125-320-D3-PPSA-N3 offers a balance of performance and standardization. Its robust construction and corrosion protection make it a reliable choice for demanding environments, while the clear technical parameters facilitate accurate sizing and integration into existing systems.