Festo - Vacuum gripping technology

Holding and break-away forces on suction cups

Tue, 02 Apr 2013 08:08:57 +0200

How are the holding force and break-away force calculated? In order to determine the required holding force, you need the calculated mass, the system acceleration and the friction coefficient. The holding force required depends on the load situation. Below are the three main load situations: Case 1: suction cup in horizontal position, movement in vertical direction (best case) Case 2: suction cup in horizontal position, movement in horizontal direction Case 3: suction cup in vertical position, movement in vertical direction (worst case) With most pick and place cycles you will find many different movement situations. The worst case with the greatest theoretical holding force must always be used for the following calculations. The workpiece weight and acceleration are required in order to calculate the holding force. Case 1: suction cup in horizontal position, movement in vertical direction (most favourable case) Case 2: suction cup in horizontal position, movement in horizontal direction Case 3: suction cup in vertical position, movement in horizontal direction (least favourable case) FH = Theoretical holding force of the suction gripper [N] m = Mass (kg) g = Acceleration due to gravity (9.81 m/s²) a = Acceleration of the system (m/s²) Attention: note the emergency off acceleration S = Safety factor (at least 1.5 with linear movement, at least 2 for rotary movement) µ = Friction value Please note: the following values are average values and should be verified for the workpiece in question. Empirical friction value (surface) Oily µ = 0.1 Wet µ = 0.2…0.3 Rough µ = 0.6 Wood µ = 0.5 Metal µ = 0.5 Glass µ = 0.5 Stone µ = 0.5 Empirical acceleration values Electric spindle 6 m/s² Electric toothed belt: 20 m/s² Servopneumatic: 25 m/s² Pneumatic: 30 m/s² Pneumatic rotary drive: 40 m/s²

Intelligent automation solutions using electrics and pneumatics

Mon, 03 Dec 2012 07:53:00 +0100

Controls, Controller, Drives, axes, cylinder, operation, visualisation, front unit, gripper, sensors, air preparation, accessories, customer solutions, standard and advanced handling systems

Handling Guide

Tue, 16 Oct 2012 17:20:19 +0200

The competence brochure for standard handling systems from Festo

Reliable and fast vacuum handling

Tue, 13 Mar 2012 13:38:42 +0100

Modular vacuum suction gripper range with Vacuum range selection software

from Festo.

Manual Support Portal

Wed, 15 May 2013 13:34:49 +0200

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Tubing diameters in vacuum systems

Wed, 03 Apr 2013 08:33:28 +0200

What influence does the vacuum and pressure supply tube with its connecting components have on the overall vacuum system? The size of the pressure supply tube must fit the air consumption of the vacuum generator. The size of the vacuum tube must fit the suction cup being used The distributor must be selected to fit the tube and the number of suction cups The size of the vacuum tube must fit the vacuum generator being used Long, slim tubes very often create bottlenecks and reduce the efficiency of the vacuum generator. The result of this is a higher input (air consumption of the vacuum generator), but a lower output (increased evacuation time). Tube diameter with vacuum generator VN Vacuum generator supply connection Outer diameter[mm] Vacuum connectionHigh flow rateOuter diameter[mm] Vacuum connectionHigh vacuumOuter diameter[mm] VN-05 4 4 4 VN-07 4 6 4 VN-10 4 6 6 VN-14 6 8 6 VN-20 6 12 8 VN-30 10 16 12

Highlights 2013

Tue, 02 Apr 2013 13:14:53 +0200

Many new products and ideas that help you to increase your competitiveness.

For the first time see more - with augmented reality!

Vacuum component selection

Tue, 02 Oct 2012 16:07:19 +0200

The program calculates the right vacuum suction cup for your application. All you need to do is input the required parameters and the program will then determine solutions ranging from a simple vertical linear movement right through to freely positionable suction cups with linear and circular motion.

Product Overview

Mon, 03 Sep 2012 11:37:18 +0200

What must be taken into account when using Festo products?

Mon, 08 Aug 2011 08:46:02 +0200