Separator without damping ASU-300

For stopping of one or more accumulated workpiece carriers at a defined stop plate in conveyor systems or at the workpiece directly. The separator can also be used for positioning of for example pneumatic cylinders.


Pneumatic separator. Housing hard-anodized aluminium. Stop hardened steel.
Allowed pallet holder load up to 300 kg (see table).


All weight data relates to the total weight of the workpiece pallet (pallet with material), not the maxial force.


Dependent on friction between workpiece pallet and conveyor system, workpiece pallet and stop plate, pneumatical pressure and ambient conditions.

Temperature range

Standard version: -20°C to +80°C
-H = Heat resistant -20°C to +180°C


When depressurized the separator keeps its last position.
The lowering force is higher as there is no spring.


Pneumatic connection: G 1/8
Working pressure: treated compressed air 4 – 8 bar


The items will be delivered without accessories.
Accessories can be freely selected according to the ambient conditions.
All supplied accessory parts are mounted by customer request.


No maintenance is required. The area around the stop plate must be clean and exempt from swarf to guarantee an exactly positioning of the pallet holder.

Data sheet (on request)
Step-file –> Downloadable below at the variants

Overview of the accessories for ASU-300 – PDF

Push-in L-fitting
G1/8, for tubing O.D. 6 mm

Push-in fitting
G1/8, for tubing O.D. 6 mm

Supply air one way flow valve
G1/8, for tubing O.D. 6 mm

Inductive sensor
M12x1, L = 65 mm, Sn = 2 mm

Plug connector, angled,
M12x1, cable length 5 m

Clamp holder M16x1
long version

Operating rangev = (m/min)69121518243036
ASU-300Mass WT (kg)0 - 3000 - 2250 - 1250 - 900 - 600 - 350 - 200 - 15

The values, given in the table above for the permissible total weight of the accumulated workpiece carriers (WT) and the permissible conveying speed, apply with a belt friction of µ=0,07 between workpiece carrier and conveyor band and with the use of an ASUTEC standard stop with mounted steel stop plate with a maximum high of 50 mm. To select the suitable stopper, we recommend the use of our online product finder.
The specified weight range is composed of the minimum workpiece carrier weight mmin and the maximum workpiece carrier weight mmax.
Maximum propulsive force:
FRmax = 590 N for the double acting stoppers ASU-300-DW-50(-…)
This maximum propulsive force may not be exceeded in order to ensure that the stopper has sufficient force for lowering.
The specified values of the maximum propulsive force are based on a coefficient of friction μ = 0.2 between the stop plate and the workpiece carrier.

Too many different variations - Find the suitable stopper!


* Preferred variant *
Separator without damping for workpiece pallets up to 300 kg
Double-acting function, 50 mm stroke


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    Separator without damping for workpiece pallets up to 300 kg
    Double-acting function, 50 mm stroke, heat resistant up to 180°C


      Your Name

      Your Company

      Your E-mail address

      Your Phone number

      Additional variants on request: +49 (0)7022-2791-0

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      From 01.01.2022 you will find us at the following address:

      Asutec GmbH
      Großer Forst 9
      72622 Nürtingen
      Tel. +49 (0)7022 / 2791 – 0