DFM-25-100-P-A-GF

Product information

Product Overview

The DFM is a guided drive — a pneumatic cylinder and a guide unit in a single housing, which is what makes it suitable for clamping, lifting and stopping duties where the load would otherwise put torque and lateral force on the piston rod. Festo offers the guide as either a plain bearing or a recirculating ball bearing guide, and states a high resistance to torques and lateral forces as the defining property of the family.

This page covers DFM-25-100-P-A-GF — Festo type code DFM-25-100-P-A-GF, order number 170853. 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

• Drive and guide unit in a single housing — high resistance to torques and lateral forces
• Choice of plain bearing or recirculating ball bearing guide (code GF for the plain variant)
• Suitable for clamping, lifting and stopping duties
• Robust and compact design according to Festo’s own description of the family
• Position sensing supported through the barrel and a magnet piston
• Drives with guide rods
• Plain or recirculating ball bearing guide

Technical Specifications (Official Festo Data)

Parameter	Official value
Piston diameter	25 mm
Theoretical force	at 0.6 MPa (6 bar, 87 psi), advance stroke 295 N
Stroke	100 mm
Cushioning	Elastic cushioning rings/plates at both ends Position detection Via proximity switch

Source: Festo official product page for order number 170853 (GTIN 4052568013196). Values are reproduced unchanged; they are not converted or rounded.

Ordering Information

Item	Official data
Manufacturer	Festo
Type code	DFM-25-100-P-A-GF
Festo order number	170853
GTIN	4052568013196
Festo category path	Products Actuators Pneumatic cylinders Guided cylinders Drives with guide rods DFM DFM-25-100-P-A-GF +2 13 videos Guided drive DFM-25-100-P-A-GF 170853
Series	Guided drive DFM

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 — DFM-25-100-P-A-GF — 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 -GF suffix mean on a DFM?
The letters after the basic type code select the guide version. Festo offers the DFM with a plain bearing guide or a recirculating ball bearing guide; the guide affects load capacity and the part number, so the suffix must match your application.

When should I use a DFM instead of a plain cylinder?
Whenever the load hangs off the piston rod. A plain cylinder has to carry torque and lateral force through the rod bearing; a guided drive carries them in the guide. Festo describes the DFM as suitable for clamping, lifting or stopping — all duties where side load is normal.

Is a guided drive a drop-in replacement for an ADN or ADVU?
No. Different family, different geometry, different order code. The DFM is a guide unit; the ADN and ADVU are compact cylinders whose thrust is taken by the piston rod alone.

Can the DFM carry a proximity switch?
Yes — the family supports position sensing. Tell us the code and we will match the switches.