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Bladder Curing Press

May 2015 Volume 2, Issue 1

In This Issue Intro about Bladder & mould

Compact design bladder press

Contents: Bladder – Pg1 Bladder dimensioning – Pg1 Bladder mould – Pg2 Bladder curing– Pg2 Conventional press– Pg3 Compact design press– Pg3 Features– Pg4 Sizes offered – Pg5

Bladder Curing Bladders are a flexible membrane that forms the inside surface of a tire during the tire vulcanization process.

Bladder dimensioning Principle Circumferential stretch:

Peripheral stretch:

In general, peripheral stretches should be between 10 % and 25 %

Bladder mould:

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It consists of the top and bottom half moulds, core ball & bead flanges.

Bladder Curing: The press is required to exert a pressure of not less than 3.5 MPa (500 psi) on the cavity area of the mould. This is intended to minimise flash and to ensure low thickness tolerances.

Conventional Bladder Curing Press: It consists of a ram cylinder, side plates, bottom bolster, ejector assembly, top beam and the core rod assembly

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Compact Design Bladder Curing Press:

1) Mechanical Structure

It consists of a Well cylinder, Base frame, bottom bolster, ejector assembly, strain rods, shear lock assembly, top beam and core rod assembly

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2) Features

1) Presses can operate on oil or steam heat (steam heat operation features (3) temperature controllers: top mold half / bottom mold half / core)

2) The head is lowered versus raising the ram; faster closing / opening cycles

3) Complete standalone unit (no pit required) 4) Run features are complete manual or auto operation 5) Bolster guided through the strain rods for proper mould

alignment. 6) Easy mould height setting with 8 locking positions in strain

rods.

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Contact Us L&T Rubber Processing Machinery Post Bag No.: 2, Vedal, Chennai-Bangalore Highway Kanchipuram – 631561. Tamilnadu. India.

rpmsales.ltmbu@larsentoubro.com

www.ltmindia.com

Sizes offered:

Platen sizes: 42”, 55”, 90”

Footmark: Details provided in this newsletter are only for information. Any feature provided here is subject to change. Photographs and sketches provided are only for illustrative purpose however machines are built against specifications. Copyright reserved and reproduction without prior consent is prohibited.