steve
Got hold of Sime for a Carrier card for…
Got hold of Sime for a Carrier card for a chiller. Machine down in a factory. Received the new card in express time machine and plant now up and running fantastic service form Sime
2 months ago
161238
Festo 161238 available at EU Automation. Get in touch today for a quick price.
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Full 12-month warranty
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3. Your quote
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
Festo 161238 is a compact flat pneumatic cylinder (DZF-18-25-A-P-A) designed for space-restricted automation applications where stable, guided linear motion is required. It features an 18 mm piston diameter with a 25 mm stroke and a double-acting operating principle for controlled extension and retraction. An anti-rotation design with an oval piston helps maintain alignment under load, while integrated provisions for proximity sensors enable reliable position indication. Elastic end-position cushioning rings on both sides reduce impact at stroke ends, supporting smooth, repeatable operation. The cylinder is suitable for installation in any mounting orientation, operates at 1 to 10 bar with ISO 8573-1:2010 compressed air quality [7:4:4], and offers M5 pneumatic ports with an M8 piston rod thread. Built with an anodised aluminium body, stainless steel piston rod, and NBR/PU sealing materials, it is engineered for durable performance in industrial environments across a wide ambient temperature range (-20 °C to +80 °C).
| Specification | Description |
|---|---|
| Manufacturer | Festo |
| Manufacturer Part Number | 161238 |
| Model / Type | DZF-18-25-A-P-A flat pneumatic cylinder |
| Product Description | Compact, flat-profile pneumatic cylinder with non-rotating guidance and provision for position sensing, designed for space-restricted automation applications. |
| Operating Mode | Double-acting |
| Stroke | 25 mm |
| Piston Diameter (Bore) | 18 mm |
| Anti-rotation / Guidance | Oval piston for non-rotating guidance |
| Position Sensing | Suitable for proximity sensors (position indication) |
| End-position Cushioning | Elastic cushioning rings on both ends (P) |
| Operating Pressure Range | 0.1 … 1 MPa (1 … 10 bar) |
| Working Medium | Compressed air |
| Compressed Air Quality | ISO 8573-1:2010 [7:4:4] |
| Lubrication | Lubricated operation possible; if lubrication is used, continued lubrication is required |
| Ambient Temperature Range | -20 … +80 °C |
| Pneumatic Connection | M5 |
| Piston Rod Thread | M8 |
| Max. Rod Angular Misalignment | ±1.2° |
| Max. Anti-rotation Torque | 0.2 Nm |
| Theoretical Force @ 0.6 MPa (6 bar), Advance | 153 N |
| Theoretical Force @ 0.6 MPa (6 bar), Retract | 123 N |
| Mounting Position | Any |
| Mounting Type | Internal thread; mounting accessories optional |
| Corrosion Resistance Class | CRC 2 (moderate corrosion stress) |
| PWIS Conformity | VDMA24364-B1/B2-L |
| Housing Material | Aluminium, smooth anodised |
| Cover Material | Aluminium die-casting |
| Piston Rod Material | High-alloy stainless steel |
| Seal Material | NBR; TPE-U (PU) |
| Base Mass (0 mm stroke) | 107 g |
| Moving Mass (0 mm stroke) | 24 g |
| Additional Moving Mass Factor (per 10 mm rod length) | 4 g |
| Additional Weight (per 10 mm length) | 13 g |
What type of actuator is this component?
It is a compact flat pneumatic cylinder from Festo’s DZF series, designed to provide linear motion where installation space is limited.
Is it single-acting or double-acting?
It is double-acting, meaning compressed air is used for both extend and retract movements.
What stroke length does it provide?
The stroke is 25 mm.
What is the piston diameter?
The piston diameter is 18 mm.
Does it have anti-rotation guidance?
Yes. It uses an oval piston design to resist rotation, helping maintain orientation under light external moments.
What is the maximum anti-rotation moment it can handle?
The maximum moment for the anti-rotation feature is 0.2 Nm.
Can I use position sensing with this cylinder?
Yes. It is designed for position indication using proximity sensors.
What cushioning is included?
It has elastic cushioning rings on both end positions (designated as cushioning type P).
What operating pressure range is specified?
The operating pressure range is 0.1 to 1.0 MPa (1 to 10 bar).
What force can I expect at 6 bar?
At 0.6 MPa (6 bar), the theoretical force is approximately 153 N on advance and 123 N on retract (Festo 161238 / DZF-18-25-A-P-A).
What pneumatic port size does it use?
The pneumatic connections are M5.
What is the piston rod thread?
The piston rod thread is M8.
Can it be mounted in any orientation?
Yes. It is specified for installation in any mounting position.
What ambient temperature range is it rated for?
The specified ambient temperature range is -20 °C to +80 °C.
What compressed air quality is recommended?
Compressed air quality is specified in accordance with ISO 8573-1:2010 class [7:4:4].
Is lubricated air required?
Lubricated operation is permitted, but if lubrication is introduced, it should be continued for ongoing operation.
What materials are used for the main components?
The cover and housing are aluminium (housing is smooth anodised), seals include NBR and TPE-U (PU), and the piston rod is high-alloy stainless steel.
What corrosion resistance level is specified?
It is rated CRC 2, intended for moderate corrosion stress environments.
- Compact linear actuation where installation height is limited, such as in low-profile machine frames and tight guarding spaces
- Clamping and holding of small workpieces on jigs and fixtures using a short, controlled stroke
- Stop and positioning functions on transfer lines for accurately locating parts at an assembly or inspection station
- Light-duty pressing, pushing, or ejecting tasks in automated assembly cells and kitting stations
- Indexing and gating of components on conveyors, chutes, and feeders to control part flow
- Actuation of small mechanical linkages, flaps, or shutters in packaging and handling equipment
- Pick-and-place end-effector assistance for simple slide motions or part separation steps
- Auxiliary motion in machine tools and special-purpose machinery where anti-rotation guidance improves repeatability
- Integration into sensor-based sequences where proximity sensing confirms end positions for process steps
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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Customer reviews
steve
Daniel
Excellent customer service...
Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.
4 months ago
Jerry Schrink
Tom Higgins provided amazing service
Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!
4 months ago
Paulo Pereira
Excellent service and communication…
Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!
4 months ago
Gary
Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
5 months ago
Lessle Smith
Thomas Higgins has gone above and…
Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!
5 months ago
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