EZH-5-20-50-B Festo Flat Cylinder

RM 425.00

ingle-acting flat cylinder featuring a 50 mm stroke and 12 mm equivalent piston diameter. Includes a rectangular piston rod for integrated torque protection.

SKU Festo-164994 Category
Compact pneumatic cylinders, short-stroke and flat cylinders

EZH-5/20-50-B Festo Flat Cylinder

Model Identifier EZH-5/20-50-B
Official Part Number 164994
GTIN Standard 4052568137397

Technical Overview

The Festo EZH-5/20-50-B is a professional-grade single-acting flat cylinder designed for pushing applications where space is limited. It features a unique rectangular piston rod that provides inherent protection against torque and eliminates the need for external guidance. This unit offers a 50mm stroke with a 12mm equivalent piston diameter, delivering a theoretical advance force of 49 N at 0.6 MPa. Built with high-quality aluminium housing and a nickel-plated steel piston rod, it ensures reliable performance within a 0 to 60 °C temperature range and is compliant with VDMA24364-B2-L LABS standards.

Key Features

  • Single-acting pushing mode of operation
  • Space-saving flat cylinder construction
  • Integrated protection against rotation via rectangular piston rod
  • Moderate corrosion resistance (CRC 2)
  • Optional mounting position for versatile installation
  • Maintenance flexibility with lubricated operation support
  • Mounting through transverse bore

Rectangular piston rod design provides integrated protection against torque and internal guidance without the need for additional mechanical components.

Technical Specification Matrix

ParameterValue
Stroke50 mm
Piston diameter12 mm Equivalent diameter
CushioningNo cushioning
Mounting positionoptional
Mode of operationPushing Single-acting
DesignPiston Rectangular piston rod
Position detectionWithout
Symbol00991200
Protection against torque/guideRectangular piston rod
Operating pressure (MPa)0.25 MPa ... 0.6 MPa
Operating pressure (bar)2.5 bar ... 6 bar
Operating mediumCompressed air to ISO 8573-1:2010 [7:4:4]
Note on operating and pilot mediumLubricated operation possible (in which case lubricated operation will always be required)
Corrosion resistance class CRC2 - Moderate corrosion stress
LABS (PWIS) conformityVDMA24364-B2-L
Ambient temperature0 °C ... 60 °C
Theoretical force at 0.6 MPa (6 bar, 87 psi), advance stroke49 N
Theoretical min. spring return force10.6 N
Theoretical max. spring return force13.6 N
Product weight145 g
Type of mountingWith transverse bore
Pneumatic connectionBarbed fitting PK-3
Material coverAluminium
Material sealsNBR
Material housingAluminium
Material piston rodSteel Nickel-plated

Industrial Applications

1. Compact Clamping in Electronics Assembly

Utilizing the extremely flat cylinder design and inherent anti-rotation properties to gently secure small electronic modules or PCBs during automated soldering or screw-driving processes. The single-acting push mechanism simplifies pneumatic routing since only one air line is needed in confined workspaces.

Problem Solved

Eliminates the need for external guide rails to prevent rotation in tight assembly stations, while averting crushing damage to delicate electronic components through a controlled, low pushing force of exactly 49 N at 6 bar.

Rectangular piston rod49 N advance stroke forcePushing Single-acting50 mm strokeProtection against torque/guide

2. High-Density Ejection Station for Lightweight Packaging

Deployed alongside narrow conveyor belts to reject or route small, lightweight pharmaceutical boxes or blister packs. The flat aluminum housing allows multiple cylinders to be mounted tightly side-by-side using the transverse bores, forming a dense multi-lane sorting array.

Problem Solved

Solves extreme spatial constraints in high-density sorting systems. Furthermore, the single-acting spring-return feature (max 13.6 N return force) ensures rapid, fail-safe retraction to prevent catastrophic conveyor jams if compressed air pressure drops.

145 g product weightTheoretical max. spring return force 13.6 NWith transverse bore mountingBarbed fitting PK-30.25 MPa ... 0.6 MPa

3. Automated Precision Jig Loading

Used within automated testing cells to push and align small mechanical components directly into precision testing jigs. The combination of nickel-plated steel and aluminum withstands moderate industrial wear, while the 50mm stroke offers enough reach for component insertion.

Problem Solved

Overcomes the issue of rotational play common in standard round cylinders that causes misalignment during the blind insertion of parts. The rectangular piston inherently prevents torsion, while the 0-60 °C ambient temperature range ensures reliable operation in varied factory floor environments.

Steel Nickel-plated piston rodAluminium housingAmbient temperature 0 °C ... 60 °CDesign: Piston Rectangular piston rodCorrosion resistance class CRC 2

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