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Series
H4.300

Concentric positioning and clamping elements

hydraulically and mechanically operated
double acting
max. operating pressure 500 bar
Concentric positioning and clamping elements
Downloads
Catalogue sheet
Operating instructions
Information Series
Description
H 4.300 Concentric positioning and clamping elements

Concentric positioning and clamping with two or three-jaw chucks on stationary fixtures is nothing new. In many applications, however, it is not possible to place the relatively large chuck bodies on the fixture. Often the smaller clamping strokes are an additional obstacle.

In our development, the individual parts can be connected to a two or multiple-element version. In the multiple-jaw version, each pair of jaws clamps independently of the remaining ones, thereby concentric clamping is obtained.

The opening can be determined by means of a connecting bar. The clamping strokes of the several sizes are designed such that manual or automatic loading and unloading can be effected also to clamp blanks with large tolerances. Also single-acting elements are available on request.

Products (12)
Loading…
clamping stroke [mm]
type
longitudinal centring element (12)
functioning
double acting (12)
stroke end control
no (12)
max. operating pressure [bar]
500 (12)
seals
NBR (12)
hydraulic ports
connection for positive air pressure protection
no (12)
max. clamping force [kN]
plunger Ø [mm]
element
interior/exterior clamping
interior and exterior clamping (12)
contact control
no (12)
clamping Ø [mm]
- (12)
Item no. CAD datatypefunctioningstroke end controlmax. operating pressure [bar]
Item no.
CAD data
type
longitudinal centring element
functioning
double acting
stroke end control
no
max. operating pressure [bar]
500
Properties
Item no.
CAD data
type
longitudinal centring element
functioning
double acting
stroke end control
no
max. operating pressure [bar]
500
Properties
Item no.
CAD data
type
longitudinal centring element
functioning
double acting
stroke end control
no
max. operating pressure [bar]
500
Properties
Item no.
CAD data
type
longitudinal centring element
functioning
double acting
stroke end control
no
max. operating pressure [bar]
500
Properties
Item no.
CAD data
type
longitudinal centring element
functioning
double acting
stroke end control
no
max. operating pressure [bar]
500
Properties
Item no.
CAD data
type
longitudinal centring element
functioning
double acting
stroke end control
no
max. operating pressure [bar]
500
Properties
Item no.
CAD data
type
longitudinal centring element
functioning
double acting
stroke end control
no
max. operating pressure [bar]
500
Properties
Item no.
CAD data
type
longitudinal centring element
functioning
double acting
stroke end control
no
max. operating pressure [bar]
500
Properties
Item no.
CAD data
type
longitudinal centring element
functioning
double acting
stroke end control
no
max. operating pressure [bar]
500
Properties
Item no.
CAD data
type
longitudinal centring element
functioning
double acting
stroke end control
no
max. operating pressure [bar]
500
Properties
Loading…
Item no.
type
longitudinal centring element
functioning
double acting
stroke end control
no
max. operating pressure [bar]
500
seals
NBR
hydraulic ports
without
connection for positive air pressure protection
no
clamping stroke [mm]
-
max. clamping force [kN]
2 x 5,0
plunger Ø [mm]
16
element
crossing for 3 elements
interior/exterior clamping
interior and exterior clamping
contact control
no
clamping Ø [mm]
-
Item no.
type
longitudinal centring element
functioning
double acting
stroke end control
no
max. operating pressure [bar]
500
seals
NBR
hydraulic ports
without
connection for positive air pressure protection
no
clamping stroke [mm]
-
max. clamping force [kN]
2 x 12,0
plunger Ø [mm]
25
element
crossing for 3 elements
interior/exterior clamping
interior and exterior clamping
contact control
no
clamping Ø [mm]
-
Item no.
type
longitudinal centring element
functioning
double acting
stroke end control
no
max. operating pressure [bar]
500
seals
NBR
hydraulic ports
without
connection for positive air pressure protection
no
clamping stroke [mm]
-
max. clamping force [kN]
2 x 20,0
plunger Ø [mm]
32
element
crossing for 3 elements
interior/exterior clamping
interior and exterior clamping
contact control
no
clamping Ø [mm]
-
Item no.
type
longitudinal centring element
functioning
double acting
stroke end control
no
max. operating pressure [bar]
500
seals
NBR
hydraulic ports
without
connection for positive air pressure protection
no
clamping stroke [mm]
-
max. clamping force [kN]
2 x 5,0
plunger Ø [mm]
16
element
crossing for 4 elements
interior/exterior clamping
interior and exterior clamping
contact control
no
clamping Ø [mm]
-
Item no.
type
longitudinal centring element
functioning
double acting
stroke end control
no
max. operating pressure [bar]
500
seals
NBR
hydraulic ports
without
connection for positive air pressure protection
no
clamping stroke [mm]
-
max. clamping force [kN]
2 x 12,0
plunger Ø [mm]
25
element
crossing for 4 elements
interior/exterior clamping
interior and exterior clamping
contact control
no
clamping Ø [mm]
-
Item no.
type
longitudinal centring element
functioning
double acting
stroke end control
no
max. operating pressure [bar]
500
seals
NBR
hydraulic ports
without
connection for positive air pressure protection
no
clamping stroke [mm]
-
max. clamping force [kN]
2 x 20,0
plunger Ø [mm]
32
element
crossing for 4 elements
interior/exterior clamping
interior and exterior clamping
contact control
no
clamping Ø [mm]
-
Item no.
type
longitudinal centring element
functioning
double acting
stroke end control
no
max. operating pressure [bar]
500
seals
NBR
hydraulic ports
pipe thread
connection for positive air pressure protection
no
clamping stroke [mm]
6
max. clamping force [kN]
2 x 5,0
plunger Ø [mm]
16
element
element, right-hand
interior/exterior clamping
interior and exterior clamping
contact control
no
clamping Ø [mm]
-
Item no.
type
longitudinal centring element
functioning
double acting
stroke end control
no
max. operating pressure [bar]
500
seals
NBR
hydraulic ports
pipe thread
connection for positive air pressure protection
no
clamping stroke [mm]
8
max. clamping force [kN]
2 x 12,0
plunger Ø [mm]
25
element
element, right-hand
interior/exterior clamping
interior and exterior clamping
contact control
no
clamping Ø [mm]
-
Item no.
type
longitudinal centring element
functioning
double acting
stroke end control
no
max. operating pressure [bar]
500
seals
NBR
hydraulic ports
pipe thread
connection for positive air pressure protection
no
clamping stroke [mm]
8
max. clamping force [kN]
2 x 20,0
plunger Ø [mm]
32
element
element, right-hand
interior/exterior clamping
interior and exterior clamping
contact control
no
clamping Ø [mm]
-
Item no.
type
longitudinal centring element
functioning
double acting
stroke end control
no
max. operating pressure [bar]
500
seals
NBR
hydraulic ports
pipe thread
connection for positive air pressure protection
no
clamping stroke [mm]
6
max. clamping force [kN]
2 x 5,0
plunger Ø [mm]
16
element
element, left-hand
interior/exterior clamping
interior and exterior clamping
contact control
no
clamping Ø [mm]
-
Accessories (6)
Item no. CAD data Description
Item no.
CAD data
/
Description
Dowel pin 8m6 x 45 mm - DIN 6325 as per data sheet H4.300
Item no.
CAD data
/
Description
Dowel pin 10m6 x 60 mm - DIN 6325 as per data sheet H4.300
Item no.
CAD data
/
Description
Dowel pin 12m6 x 70 mm - DIN 6325 as per data sheet H4.300
Item no.
CAD data
Description
Contact bolt M8 x 10 mm dome head as per data sheet G3.800
Item no.
CAD data
Description
Contact bolt M16 x 20 mm dome head as per data sheet G3.800
Item no.
CAD data
Description
Contact bolt M12 x 12 mm dome head as per data sheet G3.800
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Application examples
Application example 1

Concentric positioning and clamping elements H4.300 
The flexible clamping unit is used to clamp bars which can be machined in every position, e.g. drilled, milled, threaded, etc. In conjunction with a pneumatic two-jaw chuck the rotary indexing table is used to determine the machining position of the workpiece.
The two-jaw chuck and the right-hand concentric clamping element keep the bars in the exact working position. The floating clamping element in the centre supports the bar. For this purpose it must work in a floating way, that means without centring function, what can be obtained by omitting the connecting bar. (Available on request)