Tractel BLOCMAT M Manual De Empleo Y Mantenimiento página 3

1. FUNCTIONS AND DESCRIPTION
The blocmat range has been designed to secure suspended loads. The range is composed of
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various Working Load Limit (500/800/1000 kg) and different rope lengths.
According to the applications, the blocmat
with return sheave or integrated into aluminium truss for show business applications.
(The operation of the blocmat
The blocmat load arrestor is composed of :
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• An automatic fall arrest device with centrifugal action.
• An automatic rope reeling drum.
• An anchor system to structure.
The blocmat automatically stops a load in the event of fall. The blocmat
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structure, the load moving up and down on a vertical axis. (Fig. 1)
The load is connected to the load arrestor by a wire rope, whose length is adjusted automatically
by a retracting spring which activates a reeling drum on which the rope is wound.
A centrifugal device continously monitors the speed at which the wire rope passes through the fall
arrest device and automatically triggers the closing of the jaw on the wire rope as soon as the speed
exceeds a given threshold (about 18 m/min.) The brake jaw grips over a large contact area, cau-
sing no damage to the wire rope. The distance to stop the fall is inferior to 10 cm.
The blocmat is available in various configurations :
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• The "M" type to be integrated into an aluminium square truss (show business applications).
• The "S.I.P." type to be used with aluminium triangular truss (show business applications).
• The "S" type to be suspended to structure.
• The "S.I." type as floor mounted version tobe used together with a return sheave. (The anchor
point of the return sheave shall withstand with the force generated by a fall arrest – refer to § 2).
(Fig. 2).
2. INSTALLATION
Whatever the type, the blocmat
The blocmat shall always be connected to the support structure through the fixing plate or bracket
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supplied with the device.
Use M20 bolts to installe fixing bracket on structure. (Fig. 3)
THE ANCHOR POINT BETWEEN THE BLOCMAT
RE SHALL HAVE A RESISTANCE AT LEAST EQUAL TO 8 TIMES THE NOMINAL
LOAD.
can be suspended to structures, floor mounted used
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on horizontal position is prohibited).
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shall always be anchored on a vertical axis to the load.
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is attached to a support
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AND THE SUPPORT STRUCTU-
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