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Machine d’essai de pliage à froid

Machine d’essai de pliage à froid

Modèle :


Besoin de plus d'informations? (514) 354-2511 - 1-800-463-4363

The machine consist essentially of of hydraulic jack with cylindrical mandrel-stem, mounted horizontally within a strong steel frame which also carries two fixe reaction rollers. Two 100 mm dia. rollers are supplied; mandrels and mandrel holders must be ordered separately.

The type of bending required depends on the diameter of the specimen and on the quality and type of steel, as specified in Table II. This table also indicates the diameters required for the bending mandrel and rollers, which can easily be changed for different sizes, and for the roller spacing which is adjustable. Mandrels larger than 96 mm dia. do not need mandrel holders, because they fit directly onto the stem.
 

Specifications
Power 750W
Dimensions 1500 x 66 5x 1050 mm
Weight approx. Net 210 kg

 

Applications
Used for bending and staightening steel reinforcing bars. Two types of test can be performed depending upon size and quality of specimens: 1) Bending the specimen through 90° and than straightening it again; 2) Bending through 180°.

 

Standards
ASTM A 615-89, ASTM A 615M-89,
Law N° 1086 March 1992

 

Cat. No. Description
Mandrels Standards
Table I Italian ASTM
  for rounds dia. 5 to 32 for rounds dia. 9.52 to 35.81
70-C977/15 20 mm --
70-C977/16 24 mm --
70-C977/19 32 mm 32 mm
70-C977/21 40 mm 40 mm
70-C977/23 -- 44 mm
70-C977/24 48 mm --
70-C977/27 -- 56 mm
70-C977/33 -- 96 mm
70-C977/37 112 mm 112 mm
70-C977/38 -- 125 mm
70-C977/39 128 mm 128 mm
70-C977/42 144 mm --
70-C977/47 200 mm 200 mm
70-C977/48 220 mm --
70-C977/49 -- 224 mm
70-C977/50 250 mm 250 mm
70-C977/55 336 mm --
70-C977/56 384 mm --
70-C977/57 -- 210 mm
Important Note: over 96 mm dia., the mandrels are directly connected to the jack-stem.

 

MANDRELS Table II
Specimen dia. Mandrel dia. Roller dia. Distance between rollers
  deformed surface   deformed surface
  FeD
44K
  FeB
44K
5 mm 20 mm 50 mm 35 mm
6 mm 24 mm 50 mm 42 mm
8 mm 32 mm 50 mm 56 mm
10 mm 40 mm 50 mm 70 mm
12 mm 48 mm 100 mm 84 mm
14 mm 112 mm 100 mm 154 mm
16 mm 128 mm 100 mm 176 mm
18 mm 144 mm 100 mm 198 mm
20 mm 200 mm 100 mm 260 mm
22 mm 220 mm 100 mm 286 mm
25 mm 250 mm 100 mm 325 mm
28 mm 336 mm 100 mm 420 mm
32 mm 384 mm 100 mm 480 mm
Note: The specimens marked in red must be bent to 180°, while those marked in blue must be bent to 90° then straightened for minimum 20°.

ASTM specifications require 100 mm dia. rollers only and the straightening test is not required.

 

Cat. No. Description
70-C977 Cold bend testing machine 12 t cap.; 220V, 50 Hz, 1 ph.
70-C977/Z Cold bend testing machiine 12 t cap.; 110V, 60Hz, 1 ph.
Accessories
Mandrels All available mandrels are listed in Table I
70-C977/60 Mandrel holder for mandrels to 20 mm dia.
70-C977/61 Mandrel holder for mandrels from 24 to 50 mm dia.
70-C977/62 Mandrel holder for mandrels from 54 to 96 mm dia.
70-C977/K1 Recommended set of spares comprising jack sealing, switch, pilot lamp and pressure gauge 0-16 tons cap.
70-C977/R22 100 mm dia. roller

 

Etiquettes : Machine, d’essai, pliage, froid

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