Specimen grips with control valve can be mounted in different ways
Fmax 20 N
Pneumatic specimen grips are recommended for strain rate control in accordance with standards DIN EN ISO 6892-1:2009 and ASTM E8–09
Advantages and features
Types
There are three types of ZwickRoell pneumatic grips:
Fmax 20 N
Advantages and features
Function description
The jaws are secured with a threaded locking-pin. and can be changed without the use of tools.
An additional pneumatic control unit is not required. Soft opening and closing of the jaws takes place via a toggle valve. This offers advantages in terms of zero-force control.
The pneumatic gripping pressure on the grips cannot be changed. This is only possible by means of an additional pressure control valve.
Technical data, Fmax 20 N
Item No. |
080489 |
|
---|---|---|
Type |
8095 |
|
Test load Fmax |
0.02 |
kN |
Gripping force at 6 bar, approx. |
115 |
N |
Gripping force at 8 bar, approx. |
150 |
N |
Operating pressure, max. |
8 |
bar |
Dimensions |
||
Height |
102 |
mm |
Width |
57 |
mm |
Depth |
60 |
mm |
Opening width, max. with jaws |
5 |
mm |
Gripping of the specimen |
The specimen must be gripped with the entire height of the jaw. |
|
Weight per specimen grip, approx. |
118 |
g |
Connection, stud |
Ø 8 |
mm |
Ambient temperature |
+10 ... +35 |
°C |
Pneumatic connection (provided by the customer) |
DN7 quick action coupling |
|
Scope of delivery |
2[1] |
pieces |
Fmax 200 N and 1 kN
Advantages and features
The specimen grip has a large opening width that makes the testing of thicker specimens also possible.
Technical data, Fmax 200 N and 1 kN
Type |
8187 |
8287 |
|
---|---|---|---|
Item No. |
313852 |
313874 |
|
Operating principle/identification |
Opening width adjustable via lever |
Opening width adjustable via lever |
|
Test load Fmax |
0.2/0.1[1] |
1/0.5[1] |
kN |
Gripping force, max. at 6 bar |
0.2/0.1 |
1/0.5 |
kN |
Gripping force, max. at 10 bar |
0.33/0.16 |
1.6/0.8 |
kN |
Operating pressure |
0.5 ... 10 |
1 ... 10 |
bar |
Dimensions |
|||
Height |
95 |
160 |
mm |
Width |
202 |
240 |
mm |
Depth |
42 |
65 |
mm |
Depth with connection unit |
133 |
156 |
mm |
Gripping travel of pneumatically operated side |
12/22 |
12/22 |
mm |
Opening width, max. with jaws, thickness 5 mm |
12/22[2] |
12/22[2] |
mm |
Gripping of the specimen |
The specimen must be gripped with at least 2/3 of the jaw height. |
||
Connection, stud |
Ø 8 |
Ø 20 |
mm |
Ambient temperature |
+10 ... +35 |
+10 ... +35 |
°C |
Weight per specimen grip, approx. |
1 |
2.8 |
kg |
Scope of delivery |
2 |
2 |
pieces |
Fmax 2.5 kN
Advantages and features
Function description
The closing force is initialized via a centrally positioned pneumatic actuator. It transfers the closing movement via a steering lever to the symmetrical closing jaws.
The jaws for the jaw mountings are permanently guided play free in the tensile direction via spring elements. The jaws are secured via a locating spring. You can replace the jaws without using tools.
Technical data, Fmax 2.5 kN
Item No. |
038545 |
|
---|---|---|
Type |
8297 |
|
Test load Fmax |
2.5 |
kN |
Gripping force, max. at 6 bar |
6.5 |
kN |
Gripping force, max. at 10 bar |
10.5 |
kN |
Operating pressure |
1.5 ... 10 |
bar |
Dimensions |
||
Height |
170 |
mm |
Height with centering stop |
182 |
mm |
Width |
210 |
mm |
Depth |
82 |
mm |
Opening width, max. with jaws, thickness 5 mm |
20 |
mm |
Gripping of the specimen |
The specimen must be gripped with at least 2/3 of the jaw height. |
|
Weight per specimen grip, approx. |
4.7 |
kg |
Connection, stud |
Ø 20 |
mm |
Ambient temperature |
+10 ... +35 |
°C |
Scope of delivery |
2 |
pieces |
Fmax 10 kN, 20 kN
Advantages and features
Function description
This switching takes place automatically as soon as the jaws meet the specimen.
This patented principle of closing force application makes very high closing forces possible in instances where sizes are compact and opening widths are large.
Precise positioning of the specimen is simplified because of the adjustable stop screws with scale (included in the delivery scope) and markings on the jaws.
The specimen grip has a large opening width that makes the testing of thicker specimens also possible.
Technical data, Fmax 10 kN and 20 kN
Item No. |
353412[1] |
320032[1] |
|
---|---|---|---|
Type |
8397 |
8497 |
|
Test load Fmax |
10 |
20 |
kN |
Gripping force, max. at 6 bar |
27 |
27 |
kN |
Gripping force, max. at 10 bar |
45 |
45 |
kN |
Operating pressure |
3 ... 10 |
3 ... 10 |
bar |
Dimensions |
|||
Height |
208 |
225 |
mm |
Height with connection unit |
230 |
247 |
mm |
Width |
242 |
242 |
mm |
Depth |
112 |
112 |
mm |
Depth with connection unit/overhang |
n/a |
132 |
|
Gripping travel[2] |
10 |
10 |
mm |
Opening width, max. with jaws, thickness 5 mm |
25 |
25 |
mm |
Gripping of the specimen |
The specimen must be gripped with at least 2/3 of the jaw height. |
||
Weight per specimen grip, approx. |
14 |
14 |
kg |
Connection, stud |
Ø 20 |
Ø 36 |
mm |
Ambient temperature |
+10 ... +35 |
+10 ... +35 |
°C |
Scope of delivery |
2 |
2 |
pieces |
Fmax 20 kN
Advantages and features
Function description
Precise positioning of the specimen is simplified because of the adjustable stop screws with scale (included in the delivery scope) and markings on the jaws.
The specimen grip has a large opening width that makes the testing of thicker specimens also possible. The opening width is set manually.
An extremely high gripping force is achieved through a special design principle.
Technical data, Fmax 20 kN
Item No. |
320712[1] |
|
---|---|---|
Type |
8497 |
|
Test load Fmax |
20 |
kN |
Gripping force, max. at 6 bar |
50 |
kN |
Gripping force, max. at 8 bar |
68 |
kN |
Operating pressure |
2 ... 8 |
bar |
Dimensions |
||
Height |
225 |
mm |
Height with connection unit |
247 |
mm |
Width |
242 |
mm |
Depth |
112 |
mm |
Depth with connection unit/overhang |
132 |
mm |
Gripping travel |
8 |
mm |
Opening width, max. with jaws, thickness 5 mm |
20 |
mm |
Gripping of the specimen |
The specimen must be gripped with at least 1/2 of the jaw height. |
|
Connection, stud |
Ø 36 |
mm |
Ambient temperature |
+10 ... +35 |
°C |
Weight per specimen grip, approx. |
14 |
kg |
Scope of delivery |
2 |
pieces |
Fmax 50 kN, 100 kN
Advantages and Features
Function description
This switching takes place automatically as soon as the jaws meet the specimen.
This patented principle of closing force application makes very high closing forces possible in instances where sizes are compact and opening widths are large.
Precise positioning of the specimen is simplified because of the adjustable stop screws with scale (included in the delivery scope) and markings on the jaws.
The specimen grip has a large opening width that makes the testing of thicker specimens also possible. The opening width is set manually.
Technical data, Fmax 50 kN and 100 kN
Item No. |
320250[1] |
320710[1] |
|
---|---|---|---|
Type |
8497 |
8597 |
|
Test load Fmax |
50 |
100 |
kN |
Gripping force, max. at 6 bar |
60 |
110 |
kN |
Gripping force, max. at 10 bar |
100 |
170 |
kN |
Operating pressure |
2 ... 10 |
1.5 ... 10 |
bar |
Dimensions |
|||
Height |
306 |
341 |
mm |
Width |
390 |
390 |
mm |
Depth |
156 |
156 |
mm |
Depth with overhang |
186 |
190 |
mm |
Gripping travel[2] |
21 |
15 |
mm |
Opening width, max. with jaws |
See jaw table |
See jaw table |
|
Gripping of the specimen |
The specimen must be gripped with at least 1/2 of the jaw height. |
||
Weight per specimen grip, approx. |
53 |
53 |
kg |
Connection, stud |
Ø 36 |
Ø 60 |
mm |
Ambient temperature |
+10 ... +35 |
+10 ... +35 |
°C |
Scope of delivery |
2 |
2 |
pieces |
Fmax 10 kN
This pneumatic specimen grip is ideas for use in temperature chambers
Advantages and features
Function description
With specimen grips from the body over wedge series the position of the jaws remains constant in the test direction as the specimen is gripped. This means that the grip-to-grip separation does not depend on the specimen thickness.
The pneumatic specimen grips emphasis is on fast, reproducible and, most importantly, parallel gripping. Full gripping force is available right from the start, so that the static jaws transmit the test speed directly to the specimen.
Simple extensions are used in combination with temperature chambers The pneumatic actuator is positioned outside the chamber.
Technical data, Fmax 10 kN
Type |
8304 |
|
---|---|---|
Item No. |
1004956[1] [2] |
|
Test load Fmax |
10 |
kN |
Operating principle/identification |
Double-sided closing (wedge action) |
|
Gripping force at 6 bar |
18.46 |
kN |
Gripping force at 10 bar |
28.75 |
kN |
Operating pressure, min. |
1 ... 10 |
bar |
Dimensions |
||
Height |
131 (280) |
mm |
Width |
185 |
mm |
Depth |
185 |
mm |
Opening width, max. with jaws |
6.5 |
mm |
Gripping area |
||
Height |
55 |
mm |
Width |
35 |
mm |
Clamping length |
Min. 20 |
mm |
Weight per specimen grip, approx. |
13,7 |
kg |
Connection, stud |
Ø 20 |
mm |
Ambient temperature |
0 ... +50 |
°C |
Ambient temperature with extension piece |
-70 ... +250 |
°C |
Scope of delivery |
2 |
pieces |
1. Base unit
2. Mechanical actuation
3. Pneumatic actuation
4. Grip inserts
5. Temperature chamber
6. Extension piece for use in temperature chamber
7. Flexure tools
Range of application
Advantages and features
Function description
These pneumatic grips are single or double-actuator grips specifically designed for use in temperature chambers.
The single-actuator grips can be used for both symmetrical and asymmetrical clamping. The opposing jaw features stepless adjustment.
Double-actuator specimen grips always close symmetrically to the tensile axis, eliminating the need for thickness adjustment.
The pneumatic grip has a special connector unit for use in temperature chambers with an integrated compressed air supply. A receptacle for condensation water serves as a drainage system to remove condensation from the test area.
The opposing jaw can be adjusted steplessly or set-by-step.
The height of the connector unit depends on the testing system in use, on the temperature chamber, and on the stroke ratios, which depend on the specimen, in the temperature chamber. Therefore they are determined according to the order.
Fmax 1 kN, double-actuator
Item No. |
313950 |
|
---|---|---|
Type |
8287 |
|
Test load Fmax |
1/0.5 |
kN |
Gripping force, max. at 6 bar |
||
At opening width 12 mm, approx. |
1 |
kN |
At opening width 22 mm, approx. |
0.5 |
kN |
Gripping force, max. at 10 bar and 12 mm gripping travel, approx.[1] |
1.1 |
kN |
Gripping force, max. at 10 bar and 22 mm gripping travel, approx.[1] |
0.65 |
kN |
Operating pressure |
6 ...10 |
bar |
Opening width, max. with jaws, thickness 5 mm |
12/22 |
mm |
Gripping of the specimen |
The specimen must be gripped with at least 2/3 of the jaw height. |
|
Dimensions |
||
Height |
181 |
mm |
Width |
240 |
mm |
Depth |
109 |
mm |
Depth with pneumatic hoses |
128 |
mm |
Weight per specimen grip, approx. |
2.8 |
kg |
Connection, stud |
Ø 20 |
mm |
Ambient temperature |
-70 ... +250 |
°C |
Scope of delivery |
2 |
pieces |
Fmax 10 kN and 20 kN, double-actuator
Item No. |
320005 |
320254 |
|
---|---|---|---|
Type |
8397 |
8497 |
|
Operating principle/identification |
For temperature chamber |
For temperature chamber |
|
Test load Fmax |
10 |
20 |
kN |
Gripping force, max. at 6 bar |
25 |
35 |
kN |
Operating pressure |
1.5 ... 6 |
1.5 ... 6 |
bar |
Dimensions |
|||
Height |
213 |
213 |
mm |
Width |
242 |
242 |
mm |
Depth |
112 |
112 |
mm |
Gripping travel |
10 |
10 |
mm |
Opening width, max. with jaws, thickness 5 mm |
25 |
25 |
mm |
Gripping of the specimen |
The specimen must be gripped with at least 2/3 of the jaw height. |
||
Weight per specimen grip, approx. |
14 |
14 |
kg |
Connection, stud |
Ø 20 |
Ø 36 |
mm |
Ambient temperature |
-70 ... +250 |
-70 ... +250 |
°C |
Scope of delivery |
2 |
2 |
pieces |