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Red Festo guided actuator DFM-20-40-P-A-GF in box

Festo

Festo DFM-20-40-P-A-GF 170843 Guided Actuator electrician tool

SKU CH-1XD3-KVGK6 MPN DFM-20-40-P-A-GF

Guided actuator with 20 mm bore and 40 mm stroke for precise linear motion in electrician tool applications

  • Labor warranty1 Year
  • Product typeTest Equipment
  • Color and finishRed
  • Number of items1 pack
  • Sold asBox
  • Parts warranty3 Years
  • Precise 20 mm bore ensures accurate linear motion
  • 40 mm stroke length delivers consistent actuation range
  • Plain bearing guide provides smooth, low-friction operation
  • New condition guarantees full factory performance and reliability
  • Model 170843 simplifies ordering and system integration

Guided Actuator for Precision Motion

The Festo DFM-20-40-P-A-GF is a guided actuator built for linear motion tasks that demand repeatable positioning. It suits automation engineers and machine builders integrating controlled movement into assembly or test stations. The unit arrives new in a single pack, identified by part number 170843. Its red finish matches standard Festo component coding.

Thermal and Power Behaviour in Operation

The actuator converts compressed air into linear force, so it generates no electrical heat and draws no current during normal cycling. Noise levels are limited to the exhaust of the pilot valve and the mechanical impact at end positions. No external power supply or cooling provision is required for the actuator itself.

Integration Into a Pneumatic System

The actuator mounts directly to machine frames using its integral guide rods, freeing the designer from adding separate linear bearings. It requires a clean, lubricated compressed-air supply and a suitable directional control valve, neither of which are included. The guided construction resists side loads, reducing the need for external alignment fixtures.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $68.99
Cheaper than about 70% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameFESTO
Model nameDFM-20-40-P-A-GF
Product typeTest Equipment
Color and finishRed
In the box
Number of items1 pack

Questions about this item

How do I mount the DFM-20-40-P-A-GF guided actuator, and what alignment step is often missed?

Secure the actuator using the mounting holes on the guide body; the step often missed is ensuring the guide rods are perfectly parallel to the load direction before tightening, otherwise binding occurs.

What maintenance will the DFM-20-40-P-A-GF need after extended use?

The guide rods and bushings require periodic lubrication per Festo guidelines; seals should be inspected annually and replaced if air leakage appears at the piston rod.

What limit appears first when the DFM-20-40-P-A-GF runs continuous cycles?

The 40 mm stroke length is the primary mechanical limit; sustained high-speed cycling will hit the end-position cushioning capacity before thermal limits become an issue.

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