Abrasion resistance

The abrasion resistance refers to the resistance of suction cups.

Absolute pressure

In an absolute vacuum there is a pressure of 0 bar.

Air-saving function

Air-saving function refers to the ejector's air-saving function during the handling procedure.

Ambient pressure (atmospheric pressure)

Ambient pressure refers to the hydrostatic pressure that exists at any given point.

Atmospheric pressure

See ambient pressure

Bernoulli's principle

Bernoulli's principle describes the drop in pressure of a fluid

Centralized vacuum system

In a centralized vacuum system, the vacuum is generated with a central vacuum source for more than one suction cups.

Check valve

The check valve is the valve that automatically monitors volume flow.

Control pressure range

The control pressure range is the range between the lowest and highest permissible control pressures.

Cycle time

The cycle time refers to the time taken for a repetitive process to complete one cycle.

Decentralized vacuum system

In a decentralized vacuum system, a vacuum is generated directly at each individual vacuum suction cup.

Eco Nozzle Technology

The eco nozzle technology is based on a multi-stage venturi principle.

Evacuation time

The evacuation time refers to the time it takes to evacuate a certain volume to reach a required vacuum value.

Flow resistance

Flow resistance refers to a reduced flow cross-section in a vacuum line.

Friction coefficient

The friction coefficient [μ] refers to the relationship between friction force and normal force (contact force between suction cup and workpiece).


The grippers from Schmalz facilitate in-house processes in both manual and automated handling.

Gripping Systems

Gripping systems from Schmalz are used in automated handling processes in different industries, such as packaging, wood or intralogistics.

Handling Systems

Handling systems are used in manual and automated processes of all industries

High vacuum

A high vacuum describes any vacuum in which there is an absolute pressure of 10-7 to 10-3 mbar.

Holding force

Holding force refers to the force that can be exerted by a suction cup to grip a workpiece.


Hysteresis refers to a pressure difference between two switching points, and thus defines the state of the output signal.


IO-Link is a communication system

Idle Position

See NC-/NO- valve

Idle position of NC valve

The idle position of an NC valve refers to the position of the valve when it is not actuated, i.e. “closed” (normally closed).

Idle position of NO valve

The idle position of an NO valve refers to the position of the valve when it is not actuated, i.e. “open” (normally open).

Inner volume

The inner volume indicates the volume of the body that has to be evacuated during a suction procedure.

K1 vacuum clamping blocks

K1 vacuum pods are used on console systems with a single vacuum circuit.


Leakage refers to a leak within the vacuum system.

Load case

Load case refers to the handling task, or the process of handling a workpiece.

Low vacuum

A low vacuum describes any vacuum in which there is an absolute pressure of 1 mbar up to atmospheric pressure (1,013 mbar).

Material Handling Equipment

Heavy loads can be handled efficiently and ergonomically with the material handling equipments from Schmalz.

Medium vacuum

A medium vacuum describes any vacuum in which there is an absolute pressure between 0.001 mbar and 1 mbar.

NFC technology

NFC technology enables contactless communication

NPN – Switching output

NPN switching output refers to the configuration of a switching output.

Nominal flow

Nominal flow refers to the maximum flow through a certain diameter (nominal diameter). The nominal flow is given in l/min or m³/h.

Normal force

Normal force is the force component acting perpendicular to a surface. Every force acting on a surface can be divided into normal force and shear force (see “Shear force”).

Operating temperature

The operating temperature is a temperature range.

Overpressure resistance

Overpressure resistance refers to the maximum pressure that a body can resist.

PNP Switching output

PNP switching output refers to the configuration of a switching output.


End-of-Arm-Tooling for palletizing and depalletizing

Radius of curvature, minimum

The minimum radius of curvature refers to the smallest radius that a suction cup can securely grip.

Recovery time

The recovery time is the period in which the product is not being used.

Reference pressure

Reference pressure is the pressure referred to by a sensor.

Relative pressure

Relative pressure refers to the value of pressure in relation to the prevalent ambient pressure.

Reversing valve

A reversing valve is a type of changeover valve used in a blower.

Shear force

Shear force is the force acting tangentially to a surface.

Shore hardness

Shore hardness refers to the hardness of elastomers and plastics.

Standard liter

A standard liter is the measurement of a gas occupying a liter at 20 °C and 1,013 mbar (standard state).

Standard pressure

Standard pressure is the pressure in the atmosphere under standard conditions.

Standard temperature

Standard temperature is the temperature under standard conditions.

Suction cup stroke

The suction cup stroke refers to the stroke effect that is created by the suction cup.

Suction force

See Holding force

Suction power

See suction rate

Suction rate

Suction rate refers to the suction power of a vacuum generator.

Switching point

The switching point refers to a point at which a switch changes the state of the output signal.


A vacuum is a pressure range lower than that of the ambient pressure.

Vacuum Clamping

Vacuum clamping devices are used in CNC machines. By means of vacuum, the workpieces are securely fixed to the clamping systems.

Vacuum Lifter

Vakuum lifters relieve workers from the weight of a workpiece

Vacuum Systems

The vacuum technology offers many efficient solutions in automation, clamping and handling applications.

Ventilation time

The ventilation time refers to the time it takes to dissipate vacuum in a system.

Venturi Pump

Venturi pumps work on the venturi principle and help to generate a vacuum pneumatically.

Venturi principle

The Venturi principle describes the correlation between dynamic and static air pressure when air flows through a tube.

Volume flow

Volume flow refers to the volume of a medium.

Workpiece temperature

The workpiece temperature is the temperature of a processed workpiece.