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Series
3.2130

Hollow Piston Cylinders

single acting, hydraulic clamping and spring unclamping
max. clamping force of 60 up to 104 kN
max. operating pressure 400 bar
Hollow Piston Cylinders
Downloads
Catalogue sheet
ENDEESFRIT
Operating instructions
Available on demand.
Information Series
Description
Hollow-piston cylinders 3.2130, single acting

Manual positioning of the element on the die clamping edge.
Clamping by the application of hydraulic pressure to the piston and unclamping by spring force. 
By means of the T-bolt the die is clamped against the clamping surface of the press ram or bed.

Applications

  • on press beds and rams
  • on machines and equipments for clamping and locking
  • when the available space is limited
  • at environmental temperature up to 120° C


Special features

  • optimum adaptation to the clamping surface by spherical disk
  • T-bolt, secured against loosening
  • ideal force transmission
  • convenient and compact design with gripping surface
  • clamping force from 60 kN up to 104 kN
  • large clamping stroke
  • no interfering edges when inserting the dies
  • easy retrofit
  • piston hardened and ground
  • easy installation
  • fully resilient stroke limitation

 

Versions

Hollow-piston cylinders with spherical disk for the adaptation to the clamping surface with adjusted and secured T-bolt (alternatively: without or with attached T-bolt)

Hollow-piston cylinders - ”L” design, without spherical disk for the adaptation to the clamping surface. T-bolt attached

Hollow-piston cylinders 3.2130, hydraulic clamping
Hollow-piston cylinders 3.2130, hydraulic clamping

Hollow-piston cylinders 3.2130 - Versions

Version with a total stroke of 20 mm
Optimum adaptation to varying heights of the clamping edges of dies by an increased total stroke of 20 mm (higher total stroke on request).
Technical design, clamping forces and dimensions are as indicated on data sheet 3.2130 for the standard design.

Version with variable clamping dimension
Freely adjustable and flexible adaptation to suit varying heights of clamping edges of the dies by quick and easy adjustment of the tie rod by means of a lock nut. The tie rod is inserted through the hollow-piston cylinder and adjusted to the the correct dimension by means of the lock nut.
In this version, the cylinder has a through hole instead of a thread. Technical design, clamping forces and dimensions are as shown on catalogue sheet 3.2130 for the standard design.

Products (22)
type
stroke [mm]
functioning
single acting with spring return (22)
max. operating pressure [bar]
400 (22)
max. clamping force [kN]
clamping principle
hydraulic clamping - spring unclamping (22)
through hole Ø [mm]
spherical disk
Item no. CAD datatypestroke [mm]functioningmax. operating pressure [bar]
Item no.
821320132
CAD data
type
with internal thread
stroke [mm]
8
functioning
single acting with spring return
max. operating pressure [bar]
400
Properties
Item no.
821321432
CAD data
type
with T-bolt
stroke [mm]
8
functioning
single acting with spring return
max. operating pressure [bar]
400
Properties
Item no.
821330132
CAD data
type
with internal thread
stroke [mm]
8
functioning
single acting with spring return
max. operating pressure [bar]
400
Properties
Item no.
821331632
CAD data
type
with T-bolt
stroke [mm]
8
functioning
single acting with spring return
max. operating pressure [bar]
400
Properties
Item no.
821340102
CAD data
type
with internal thread
stroke [mm]
12
functioning
single acting with spring return
max. operating pressure [bar]
400
Properties
Item no.
821340132
CAD data
type
with internal thread
stroke [mm]
12
functioning
single acting with spring return
max. operating pressure [bar]
400
Properties
Item no.
821341102
CAD data
type
with internal thread
stroke [mm]
12
functioning
single acting with spring return
max. operating pressure [bar]
400
Properties
Item no.
821341122
CAD data
type
with internal thread
stroke [mm]
6
functioning
single acting with spring return
max. operating pressure [bar]
400
Properties
Item no.
821341132
CAD data
type
with internal thread
stroke [mm]
12
functioning
single acting with spring return
max. operating pressure [bar]
400
Properties
Item no.
821341802
CAD data
type
with T-bolt
stroke [mm]
12
functioning
single acting with spring return
max. operating pressure [bar]
400
Properties
Item no.
821320132
type
with internal thread
stroke [mm]
8
functioning
single acting with spring return
max. operating pressure [bar]
400
max. clamping force [kN]
30
clamping principle
hydraulic clamping - spring unclamping
through hole Ø [mm]
M12
spherical disk
without
Item no.
821321432
type
with T-bolt
stroke [mm]
8
functioning
single acting with spring return
max. operating pressure [bar]
400
max. clamping force [kN]
30
clamping principle
hydraulic clamping - spring unclamping
through hole Ø [mm]
for T-slot 14 mm
spherical disk
without
Item no.
821330132
type
with internal thread
stroke [mm]
8
functioning
single acting with spring return
max. operating pressure [bar]
400
max. clamping force [kN]
40
clamping principle
hydraulic clamping - spring unclamping
through hole Ø [mm]
M14
spherical disk
without
Item no.
821331632
type
with T-bolt
stroke [mm]
8
functioning
single acting with spring return
max. operating pressure [bar]
400
max. clamping force [kN]
40
clamping principle
hydraulic clamping - spring unclamping
through hole Ø [mm]
for T-slot 16 mm
spherical disk
without
Item no.
821340102
type
with internal thread
stroke [mm]
12
functioning
single acting with spring return
max. operating pressure [bar]
400
max. clamping force [kN]
60
clamping principle
hydraulic clamping - spring unclamping
through hole Ø [mm]
M16
spherical disk
with
Item no.
821340132
type
with internal thread
stroke [mm]
12
functioning
single acting with spring return
max. operating pressure [bar]
400
max. clamping force [kN]
60
clamping principle
hydraulic clamping - spring unclamping
through hole Ø [mm]
M16
spherical disk
without
Item no.
821341102
type
with internal thread
stroke [mm]
12
functioning
single acting with spring return
max. operating pressure [bar]
400
max. clamping force [kN]
60
clamping principle
hydraulic clamping - spring unclamping
through hole Ø [mm]
M20
spherical disk
with
Item no.
821341122
type
with internal thread
stroke [mm]
6
functioning
single acting with spring return
max. operating pressure [bar]
400
max. clamping force [kN]
60
clamping principle
hydraulic clamping - spring unclamping
through hole Ø [mm]
M20
spherical disk
without
Item no.
821341132
type
with internal thread
stroke [mm]
12
functioning
single acting with spring return
max. operating pressure [bar]
400
max. clamping force [kN]
60
clamping principle
hydraulic clamping - spring unclamping
through hole Ø [mm]
M20
spherical disk
without
Item no.
821341802
type
with T-bolt
stroke [mm]
12
functioning
single acting with spring return
max. operating pressure [bar]
400
max. clamping force [kN]
60
clamping principle
hydraulic clamping - spring unclamping
through hole Ø [mm]
for T-slot 18 mm
spherical disk
with
Accessories (27)
Item no. CAD data Description
Item no.
2753140
CAD data
/
Description
Bracket with spacer bar for T-slot 14 mm *as per catalogue sheet WZ 3.2130
Item no.
2753160
CAD data
/
Description
Bracket with spacer bar for T-slot 16 mm *as per catalogue sheet WZ 3.2130
Item no.
2753180
CAD data
/
Description
Bracket with spacer bar for T-slot 18 mm *as per catalogue sheet WZ 3.2130
Item no.
2753220
CAD data
Description
Bracket to accommodate a spring clamping cylinder without spacer bar for T-slot 22 mm *as per catalogue sheet WZ 3.1403
Item no.
2753280
CAD data
Description
Bracket to accommodate a spring clamping cylinder without spacer bar for T-slot 28 mm *as per catalogue sheet WZ 3.1403
Item no.
2753360
CAD data
/
Description
Bracket with spacer bar for T-slot 36 mm *as per catalogue sheet WZ 3.2130
Item no.
5700022
CAD data
/
Description
T-bolt for T-slot 18 mm M16 x 160 mm long *as per catalogue sheet WZ 3.2130
Item no.
5700023
CAD data
/
Description
T-bolt for T-slot 22 mm M20 x 200 mm long *as per catalogue sheet WZ 3.2130
Item no.
5700024
CAD data
/
Description
T-bolt for T-slot 28 mm M24 x 250 mm long *as per catalogue sheet WZ 3.2130
Item no.
5700048
CAD data
/
Description
T-bolt for T-slot 36 mm M30 x 250 mm long *as per catalogue sheet WZ 3.2130
Application examples
Application example 1

Hollow-piston cylinders 3.2130
Use of hollow-piston cylinders in the press ram.

Application example 2

Hollow-piston cylinders 3.2130
Use of 32 hollow-piston cylinders in a press.
Reduction of set-up times by 30 %.

Application example 3

Hollow-piston cylinders 3.2130
Design "L"

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Please note: Our CAD data are generally simplified data and primarily reflect the outer contour and connections of the product (see also Terms of use). Please always refer to the relevant catalogue sheet for the exact dimensions with tolerances, in particular the information on mounting holes or attachments such as special clamps.