Continuously working lap preparation machine type 494

Continuously working machine for efficient preparation of the joints of endless abrasive belts. The lap preparation machine type 494 is able to produce tape joints as well as overlap joints and is perfectly suited for processing short belts as well as wide belts.
If the belts are long enough, it is also possible to prepare both lap ends in one step (double lap preparation machine).

As a special feature, the machine can be combined with the automatic cut-to-length machine type VAE and becomes a powerful, semi-automatic belt production line.

  • Can be equipped with several scuffing and gluing aggregates as wells as with drying stretches and an automatic tape applicator.
  • Material is passing through with grain side up or down (for tape joints and overlap joints).
  • Standard working direction from right to left.
  • Standard inserting stretch of approx. 500 mm (extension of inserting stretch of approx. 1000 mm for wide belts available on request).
  • Two-speed drive in different speeds (according to the joint type).
  • For joint direction type AL (see pictures).
  • Easy adjustable scuffing and gluing aggregates.
  • Simultaneous preparation of both lap ends possible when producing long belts.
  • Two steel feet for a working height of approx. 1020 mm.

Aggregate type D/DU

  • For skiving the grain with a diamond cup wheel.
    The aggregate is working from the top (type D) or from the bottom (type DU). The diamond cup wheel is often used for overlap joints or when producing belts with a top skive. The aggregates can be adjusted precisely in all directions to ensure an optimal processing of each material.

Aggregate type C

  • For grinding and scuffing with an abrasive belt parallel to the joint.
    The aggregate type C is working from the top and it can be adjusted precisely in all directions to ensure an optimal processing of each material.

Aggregate type P/PU

  • For pointing or scuffing with an abrasive belt, a wire brush or other tools.
    The aggregates are working from the top (type P) or from the bottom (type PU). Both are typically used before gluing the belt ends. The aggregate works at an angle to the joint. The angle should correspond to the joint angle of the belt and can be adjusted. The aggregates can be adjusted precisely in all directions to ensure an optimal processing of each material.

General information

  • All aggregates can be easily adjusted in height, forward/sideward inclination and angle.
  • More than one aggregate of the same type is often used when working with large machines or double lap preparation machines. This possibly allows a preparation of both lap ends in the same working process or an easy conversion when changing the joint type.
  • The aggregates can be easily integrated in the working process by pushing them forward or backward and this guarantees an efficient working. When using more than one aggregate of the same type, they can be set for repeating applications and do not need to be readjusted every time, which is an advantage when producing overlap and tape joints with the same machine.

Aggregate type G/GU

  • The gluing aggregate works with a driven glue applicator roll and supporter roll which are hardened. The gluing aggregate type G is working from the top and type GU is working from the bottom. The cleaning parts are very easy to remove from the machine. The aggregate works with two different speeds. The quantity and the width of the glue are adjustable.

Aggregate type LS/LSU

  • Glue spray head that allows various settings like spray pattern, inclinations, distances and glue quantity. The glue spray head type LS is working from the top and type LSU is working from the bottom. The glue will be kept in a pressure tank to ensure a significant increase of the processing time. The innovative and slowly rotating cover tape is used to apply an absolutely precise adhesive film.
  • The cleaning process of a glue spray head is much easier and faster than for the glue applicator roll.

General information

  • The aggregates can be easily integrated in the working process by pushing them forward or backward and this guarantees an efficient working.

Drying stretches type T/TU

  • For drying the glued belt ends
    (type T is working from the top, type TU is working from the bottom).
  • The intensity of the drying stretches can be adjusted by a power controller.
  • The drying stretches are necessary to ensure an effective working with the tape applicator type FAS.
  • The joining process for overlap joints will be accelerated due to the fact, that the lap ends are already pre-dried.

Tape applicator type FAS

  • Continuously working tape applicator for the automatic application of tapes on joints when producing endless narrow belts and wide belts.
  • Thanks to the tape applicator type FAS the tape will be automatically glued, dried, applied on both lap ends and finalized by a flush cut.
  • The length of the tape to be applied is freely selectable (tapes up to 25 mm can be processed).
  • When processing long belts, a tape is applied only on every second lap end.
  • More than one aggregate of the same type are used when working with large machines or double lap preparation machines. This allows a preparation of both lap ends in the same working process.
  • The aggregates can be easily integrated in the working process by pushing them forward or backward and this guarantees an efficient working.
  • When using more than one aggregate of the same type, they can be set for repeating applications and do not need to be readjusted every time, which is an advantage when producing overlap and tape joints with the same machine.

Examples

  • Type 494/4500
    for max. 5 scuffing and gluing aggregates as well as with 1 m drying stretch and tape applicator.
  • Type 494/5000
    for max. 7 scuffing and gluing aggregates as well as with 1 m drying stretch and tape applicator.
  • Type 494/6000
    for example: up to 7 scuffing and gluing aggregates as well as 2 m drying stretch (especially suitable when producing non-woven material).
  • Type 494/xxxx
    special design on request.
  • Extension of inserting stretch of 1000 mm for wide belts.
  • Aggregate type D
    working from the top against a hard metal plate and diamond cup wheel included.
  • Aggregate type C
    working from the top against a hard metal plate, with an abrasive belt on a parallel basis.
  • Aggregate type P
    working from the top against a hard metal plate, with an abrasive belt on a parallel basis.
  • Addition to aggregate type P for interchangeable tools,
    to make the aggregate work with a wire brush or other tools.
Aggregates for continuously working lap preparation machine type 494

Aggregates for continuously working lap preparation machine type 494

Tape applicator type FAS

Tape applicator type FAS

Joint directions

Joint directions type AL and AR (seen from the grain side). Type AL for lap preparation machine type 494

Our recommendations

Automatic cut-to-length machine type VAE Automatic cutting to length and transfer of the material to the skiving machine.

How may we help you?

Contact us! Our experts will be happy to support you.

Tel. +41 52 720 70 30
info@amackerschmidag.com