Hot Perforation Machines

Tambula manufactures hot perforation machines with a range of techniques suitable for a wide range of materials. Machines can be built for working widths of up to 4 meters.

Spiked roller

Normally mounted above the backing role for easy cleaning and maintenance

Backing role

brush rollers for large penetration depths and large holes
rubber rollers for micro perforation and big pressures

Heat transfer types

Outside infrared heating

Advantages

inexpensive
simple
Effective heating of needle points

Disadvantages

moderate heat supply
difficult measurement and control
fire danger because of exposed thermal source (≥ 650°C)

Inner electric heating

Advantages

high heat input
cost effective
no moving parts with Tambula system, no maintenance necessary
no fire danger
high efficiency

Disadvantages

thermal distance until needle points are heated
difficult control because of potentially big hysteresis and irregularities

Inner heating by heat transfer oil

Advantages

good control characteristics, low risk of overheating
useful for sensitive material needing precise control of temperature

Disadvantages

high costs
rotary feedthrough wears out
risk of leakage
careful maintenance needed
low efficiency

Drive

For best control performance Tambula uses only servo geared motors. The reference rotation speed can be provided by a central control system as an analog value or via bus. The speed can optionally be captured by a sensor on a deviating shaft.

Depth control

The backing role can be lifted pneumatically or hydraulically, dependent on the pressure needed. The limit stops can be adjusted for variable perforation depths.

Temperature control

The temperature of perforation is generally captured on the surface of the perforation roller. With electric heating, segments of the roller can be controlled seperately to compensate faster cooling of the marginal segments.

Safety

The perforation roller is shielded while threading
A safety control monitors all doors and the roller shield, threading of the material is safely possible while the roller is hot
With electrical heatings all heating segments can be controlled and monitored seperately

Easy operation

Spiked roller is easily reachable from above

Options

Adjustment of penetration depths via servo motors
Length compensation for constant web tension
Torque controlled draw roll for use with densely spiked rollers and thick materials
Complete surface temperature monitoring
Remote control
Touch screen for easy operation
Machine unit on wheels for easy relocation

We engineer complete machines for micro perforation of foil, paper, foam rubber or metal. Manifold materials can be processed at high speeds with our cold or hot perforation machines.

Please request a quote with our questionnaires.